Cherry Creek Reservoir Aeration Compressor Evaluation EATON Energy Solutions Group 1 2/29/12 CHERRY CREEK RESERVOIR AERATION SYSTEM GREENWOOD VILLAGE, CO Aeration Compressor Evaluation 6/28/2012 Cherry Creek Reservoir Aeration System, Greenwood Village, CO Electrical Sector Eaton’s Electrical Services & Systems Energy Solutions Group 143 Union Blvd, Suite 350 Lakewood, CO 80228 tel: 303-974-1200 fax: 303-974-1239 This report has been prepared to present the results of our analysis of the operation of the air compressor serving the aeration system at the Cherry Creek Reservoir. The report addresses findings and potential solutions.
83
Embed
Compressor Evaluation CHERRY CREEK RESERVOIR AERATION ...
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Cherry Creek Reservoir Aeration Compressor Evaluation
EATON Energy Solutions Group 1 2/29/12
CHERRY CREEK
RESERVOIR AERATION
SYSTEM
GREENWOOD VILLAGE,
CO
Aeration Compressor Evaluation
6/28/2012 Cherry Creek Reservoir Aeration System, Greenwood Village, CO
Electrical Sector Eaton’s Electrical Services & Systems Energy Solutions Group 143 Union Blvd, Suite 350 Lakewood, CO 80228 tel: 303-974-1200 fax: 303-974-1239
This report has been prepared to present the results of our analysis
of the operation of the air compressor serving the aeration system at
the Cherry Creek Reservoir. The report addresses findings and
potential solutions.
Cherry Creek Reservoir Aeration Compressor Evaluation
EATON Energy Solutions Group 2 2/29/12
DISCLAIMERS
This report has been prepared at the request of the client, and the observations, conclusions, and
recommendations contained herein constitute the opinions of Eaton Energy Solutions, Inc. In preparing
this report, Eaton Energy Solutions has relied on some information supplied by the client, the client’s
employees, and others which we gratefully acknowledge. Because no warranties were given with this
source of information, Eaton Energy Solutions cannot make certification or give assurances except as
explicitly defined in this report.
Cherry Creek Reservoir Aeration Compressor Evaluation
Annual Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov DecTavg 50.7 32.1 33.7 40.6 47.3 57.0 66.5 73.4 71.5 62.7 51.0 39.1 31.8Sd 10.76 11.55 9.77 9.62 8.30 7.34 5.48 4.82 8.83 9.64 11.19 11.43
CDDn Cooling degree-days base n°F, °F-day Lat Latitude, ° Period Years used to calculate the design conditions CDHn Cooling degree-hours base n°F, °F-hour Long Longitude, ° Sd Standard deviation of daily average temperature, °F DB Dry bulb temperature, °F MCDB Mean coincident dry bulb temperature, °F StdP Standard pressure at station elevation, psi DP Dew point temperature, °F MCDBR Mean coincident dry bulb temp. range, °F taub Clear sky optical depth for beam irradiance Ebn,noon } Clear sky beam normal and diffuse hori- MCDP Mean coincident dew point temperature, °F taud Clear sky optical depth for diffuse irradiance Edh,noon } zontal irradiances at solar noon, Btu/h/ft2 MCWB Mean coincident wet bulb temperature, °F Tavg Average temperature, °F Elev Elevation, ft MCWBR Mean coincident wet bulb temp. range, °F Time Zone Hours ahead or behind UTC, and time zone code Enth Enthalpy, Btu/lb MCWS Mean coincident wind speed, mph WB Wet bulb temperature, °F HDDn Heating degree-days base n°F, °F-day MDBR Mean dry bulb temp. range, °F WBAN Weather Bureau Army Navy number Hours 8/4 & 55/69 Number of hours between 8 a.m. PCWD Prevailing coincident wind direction, °, WMO# World Meteorological Organization number
and 4 p.m with DB between 55 and 69 °F 0 = North, 90 = East WS Wind speed, mph HR Humidity ratio, grains of moisture per lb of dry air
Hours8 to 4 &55/69
2%
Coldest month WS/MCDB
2%
MCWS/PCWDto 99.6% DB0.4%
1%
1%
MCWS/PCWDto 0.4% DB
Enthalpy/MCDB1% 2%0.4%
ColdestMonth
HottestMonth
Humidification DP/MCDB and HR99.6% 99%Heating DB
0.4%
5% DB
taub
Monthly Design Dry Bulb
and Mean Coincident
Wet BulbTemperatures
Monthly Design Wet Bulb
and Mean Coincident
Dry BulbTemperatures
Mean DailyTemperature
Range
0.4%
2%
5%
10%
1% 2%0.4%
Clear Sky Solar
Irradiance
Dehumidification DP/MCDB and HR
Ebn,noonEdh,noon
ExtremeMaxWB
Extreme Annual DB n-Year Return Period Values of Extreme DB
0.4%
Extreme Annual WS
taud
10%
0.4%
2%
5%
n=10 years
1%
5% WB
n=20 years n=50 years
BUCKLEY ANGB/DENVER, CO, USA
Temperatures,Degree-Days
and Degree-Hours
HottestMonth
DB Range
Cooling DB/MCWB Evaporation WB/MCDB
Mean Standard deviation n=5 years
Cherry Creek Reservoir Aeration Compressor Evaluation
APPENDIX D
COMPRESSED AIR HEAT GAIN CALCULATIONS
Cherry Creek Reservoir Aeration Compressor Evaluation
Where
Heat removed from compressed air in aftercooler
mass flow rate of compressed air =
⁄ = 32.76 lb/m
Average of specific heats of air (at constant pressure) at
aftercooler entering and leaving air temperatures = .2425 (BTU/lb * °R)
Change in compressed air temperature through aftercooler =
338.4 °R
Cherry Creek Reservoir Aeration Compressor Evaluation
Sound Power by Octave BandSoundData 62.5 125 250 500 1000 2000 4000 8000 LwA dBA Sones
Inlet 89 91 82 78 76 73 72 69 83 71 23
MotorMotor
MountedSize(hp) V/C/P Encl. Motor
RPM WindingsNECFLA*
(Amps)Yes 1 208/60/3 TEFC 1725 1 4.6
Notes:All dimensions shown are in units of in.*FLA - based on tables 150 or 148 of National ElectricalCode 2002. Actual motor FLA may vary, for sizing thermaloverload, consult factory.LwA - A weighted sound power level, based on ANSI S1.4dBA - A weighed sound pressure level, based on 11.5 dBattenuation per Octave band at 5.0 ft - dBA levels are notlicensed by AMCA InternationalSones - calculated using AMCA 301 at 5.0 ft
1/27/2012Printed Date: Cherry Creek ReservoirJob:
FanProduct Type: SF-1 REV2Mark:
CAPS 4.8.958 H:\Greenheck\2012 LJG\Cherry Creek Reservoir.gcj Page 2 of 6
Assembly DrawingType: Sidewall Belt Drive Supply Fan
HOUSINGMOUNTING
FLANGE
OSHAAPPROVED
GUARD
AIR FLOWWALL OPENING 33.75 SQ.
LONG WALLHOUSING
WA
LL
-INTE
RIO
R-
-EX
TER
IOR
-
WA
LL
CLOSURE ANGLES
supply fans can carry rain or snow into the building
DAMPER WITHACTUATOR
32.25
38.25
43
Notes: All dimensions shown are in units of in.
1/27/2012Printed Date: Cherry Creek ReservoirJob:
FanProduct Type: SF-1 REV2Mark:
CAPS 4.8.958 H:\Greenheck\2012 LJG\Cherry Creek Reservoir.gcj Page 4 of 6
DAMPER
TYP. SECTION VIEW
2626
5.010.0Min.
1.3max. 1.3
max.
Standard Construction Features:- Model VCD-23 is a well built low leakage control damper for automatic control or manual balancing applications - Galvanized16 ga channel frame - Galvanized blades with reinforcements - Side mounted steel linkage is concealed in the frame to preventadditional pressure drop - Axles are steel and 0.5 in dia.- Synthetic axle bearings - Width and height furnished approximately0.25 in undersized - Field wiring is required to individual components
CAPS 4.8.1006 H:\Greenheck\2012 LJG\Cherry Creek Reservoir.gcj Page 1 of 13
MSX Modular Supply Fan MSX-120-H32CONSTRUCTION FEATURES• Exterior housing constructed of galvanized steel • Weatherization • Removable access panels • Painted orgalvanized steel blower and bearing supports • Forward curved steel blower and motor • Fan assembly ismounted on vibration isolators • Motor pulleys are adjustable through 10 hp and fixed for 15 hp and greater •Fan shaft is mounted in permanently lubricated ball bearings (up through size 118) or ball bearing pillow blocks(size 120 and greater) • Static free belts • Corrosion resistant fasteners are standard.
• LwA - A weighted soud power level based on ANSI S1.4• dBA - A weighted sound pressure level base on 11.5 dB attenuation per octave band at 5.0 ft.• Noise Criteria (NC) based on an average attenuation of 11.5 dB per octave band at 5.0 ft.
4/11/2012Printed Date: Cherry Creek ReservoirJob:
Make Up AirProduct Type: MUA-1Mark:
CAPS 4.8.1006 H:\Greenheck\2012 LJG\Cherry Creek Reservoir.gcj Page 2 of 13
CELdek2" Aluminum MeshAuto Drain & FlushBy Factory67.8 F65.0 F
Required Flow** 1.2 GPM
Motor DataMark Fan HP V/C/P Mtr. Amps RPM Enclosure Efficiency
- Supply Fan 10 460/60/3 14 1725 ODP Premium
MCA/MOP: 18.7 / 30
WeightsUnit Weight* : 1,697 lb
Unit Wet Weight*: 2,093 lb* Weight does not include accessories external to the unit(curb, exhaust fan(s), diffuser, etc).** Required flow and inlet pressure are for supply linesizing only. They do not represent water usage duringnormal operation. Consult factory for water usage.
4/11/2012Printed Date: Cherry Creek ReservoirJob:
Make Up AirProduct Type: MUA-1Mark:
CAPS 4.8.1006 H:\Greenheck\2012 LJG\Cherry Creek Reservoir.gcj Page 4 of 13
MSX Modular Supply Fan MSX-120-H32
38.098 65.948
48.722
ELEVATION VIEW* Standard configuration for unit access is on the right-hand side, when looking into the unit intake in the direction of airflow.
38.098
96.532
65.948
53.119
PLAN VIEW
4/11/2012Printed Date: Cherry Creek ReservoirJob:
Make Up AirProduct Type: MUA-1Mark:
CAPS 4.8.1006 H:\Greenheck\2012 LJG\Cherry Creek Reservoir.gcj Page 5 of 13
* Standard configuration for unit access is on the right-hand side, when looking into the unit intake in the direction of airflow.
52.166
END VIEW
2.049
44.625
49.772
2.059
96.721
1.049
INTAKE VIEW
4/11/2012Printed Date: Cherry Creek ReservoirJob:
Make Up AirProduct Type: MUA-1Mark:
CAPS 4.8.1006 H:\Greenheck\2012 LJG\Cherry Creek Reservoir.gcj Page 6 of 13
ELECTRICALCONNECTION
15.000
63.997
Electrical Connections
4/11/2012Printed Date: Cherry Creek ReservoirJob:
Make Up AirProduct Type: MUA-1Mark:
CAPS 4.8.1006 H:\Greenheck\2012 LJG\Cherry Creek Reservoir.gcj Page 8 of 13
EQUIPMENT SCHEDULE
GreenheckModel
Operating Power V/C/P Encl:
Volume Total SP FRPMQty
Non-Tempered Make-Up Air Unit
MotorRPM Windings MCA
Motor InformationSize
Mark: MUA-1
Weight
MSX-120-H32 7.55 hp 460/60/3 ODP12,550 CFM
1.376 in wg
813 RPM1 1725 1 18.710 hp1,697 lb
Required Flow**Dry
Filters Cooling Control
Cooling
NA93 F 2in. Aluminum Mesh
Automatic Drain Flush Valve-By Factory65 F
Cooling MediaCooling Type
CELdekEvaporative
**Required flow and inlet pressure are for supply line sizing only. They do not represent water usage during normal operation. Consult factory for actual water usage.
Summer Bulb
Wet
125 4000250 1000 200062.5
Outlet Sound Power By Octave Band
8000
89.2 79.286.8 83.4 82.999.8 74.2
dBA
78.5
LwA
89.5
500
85.7
Sones
33.2· LwA - A weighted sound power level based on ANSI S1.4· dBA - A weighted sound pressure level base on 11.f dB attenuation per octabe band at 5.0 ft.· Noise Criteria (NC) based on an average attenuation of 11.5 dB per octabe band at 5.0 ft.
OPTIONS AND ACCESSORIES
Spare Set of Belts - Quantity 1
Unit Insulation - DoubleWall - Entire UnitAir Flow Arrangement - Outdoor Air Only - 100% OSAHorizontal Unit - No Weatherhood Provided Discharge Position - Downblast - No DiffuserInlet DamperInlet Air Sensor - CoolingControl CenterFactory Finish - GalvanizedService ReceptacleBlower Isolation - NeopreneRoof Curb - GPI 50 in (W) x 64 in (L) x 16 in (H) - Galvanized - 1 in Insulated
4/11/2012Printed Date: Cherry Creek ReservoirJob:
Make Up AirProduct Type: MUA-1Mark:
CAPS 4.8.1006 H:\Greenheck\2012 LJG\Cherry Creek Reservoir.gcj Page 9 of 13
Cherry Creek Reservoir Aeration Compressor Evaluation
CAPS 4.8.1006 H:\Greenheck\2012 LJG\Cherry Creek Reservoir.gcj Page 1 of 12
DESCRIPTION
Model Elevation(ft) Qty Approximate
Weight (lb)
RV-35 5,500 1 2,038
--Weight does NOT include skid/crating and may vary by 15%based on options selected.
ARRANGEMENT
OA IntakePosition
SA DischargePosition
Return AirIntake Position
Exhaust AirDischargePosition
End Side N/A
MOTOR SPECS
V/C/P Enclosure RPM SupplyEfficiency
ExhaustEfficiency
460/60/3 ODP 3500 PE N/A
ELECTRICAL
Minimum CircuitAmps (A)
Max. OverCurrent
Protection (A)
40 50
COOLING
Cooling Type CondensingUnit By
Cond. UnitCap. (MBH)
CompressorQty.
CompressorType
Packaged DX Greenheck 162.9 2 StandardScroll
SUPPLY FAN PERFORMANCE
Volume(CFM)
OutdoorVolume(CFM)
Supply SP(in wg)
Total SP(in wg) FRPM
OperatingPower(hp)
Motor Size(hp)
5,000 5,000 0.8 1.698 3248 2.12 5
RV Rooftop Ventilator
STANDARD CONSTRUCTION FEATURES
Exterior housing constructed of galvanized steel • Direct-drive airfoilplenum blowers with factory mounted VFDs • Ball bearing motors • Fanshafts in permanently lubricated bearings • Corrosion resistant fasteners •Internally lined with galvanized steel metal creating a double wall •Insulated with 2 inch, 3# density insulation • Internally mounted controlcenter with motor starters, 24 VAC control transformers, control circuitfusing
SELECTED ACCESSORIESUL\cUL1995Weatherhood: Downturned HoodFinal Filters - 2" Pleated MERV 8Roof Curbs - GKD 14"Supply Dampers - Motorized Low LeakageMicroprocessor ControlsSupply Fan Controls - Constant Volume (on/off)Dirty Filter Sensor: FinalPhase and Brown Out Protection120v NEMA 3R Outlet (ships loose-power by others)Unit Disconnect - Mounted By FactorySpare Filter Final, Quantity of 1
Note: Unit is proved with factory mounted and wired disconnect switch.
5/22/2012Printed Date: Cherry Creek ReservoirJob:
Energy RecoveryProduct Type: MUA-1 DXMark:
CAPS 4.8.1006 H:\Greenheck\2012 LJG\Cherry Creek Reservoir.gcj Page 2 of 12
RVRooftop Ventilator
Coil / Condensing Unit PerformanceCondensing Unit DetailsThe RV will come equipped with the following components:• Hermetic scroll type compressors• Compressors mounted in an isolated compartment to be serviceablewithout affecting airflow and on neoprene vibration isolation to minimizevibration transmission and noise• Crankcase heater on compressor• Thermal expansion valve for refrigerant flow control• Hot gas bypass• Multiple condensing fans to allow fan cycling for head pressure control• Liquid-Line filter drier• High pressure manual reset cutout• Low-pressure auto-reset cutout• Time delay relays for compressor protection• Service/charging valves• Moisture-indicating sight glass• Direct drive, statically and dynamically balanced, AMCA Licensed for AirPerformance• Condensing coils with 3/8" copper tubes mechanically bonded toaluminum fins
COMPRESSORNominal Tonnage /
CompressorCompressor
QuantityCompressor
Type
7.5 2 Standard Scroll
CONDENSING COILFace Area
(ft2) Rows FPI CondensingTemp. (F)
AmbientTemp. (F)
21.1 3 16 129.0 103.0
CONDENSING FAN
Quantity DiameterMotor
Motor Size (Watts)(each) RPM
2 20 1119 1100
Cooling Coil
Cooling Type Direct Exp (DX)Face Area (ft2): 9.7Rows Deep (Evap Coil): 3Fins Per Inch: 10Face Velocity (ft/min): 420Entering Dry Bulb (F): 103.0Entering Wet Bulb (F): 67.0Leaving Dry Bulb (F): 66.6Leaving Wet Bulb (F): 54.3Cool Coil SP (in wg): 0.134Refrigerant Velocity (ft/min): 20Suction Temp. (F): 43.4Refrigerant: 410aCond. Unit Cap. (MBH): 162.9Unit EER: 9.76
5/22/2012Printed Date: Cherry Creek ReservoirJob:
Energy RecoveryProduct Type: MUA-1 DXMark:
CAPS 4.8.1006 H:\Greenheck\2012 LJG\Cherry Creek Reservoir.gcj Page 7 of 12
OUTDOOR AIR INLET
OUTDOOR AIRWEATHERHOOD
DX COIL
SUPPLY AIR DISCHARGE
OUTDOOR AIR DAMPER SUPPLY BLOWER
COMPRESSORS
CONDENSING COIL
DRAIN LOCATION
SUPPLY FINAL FILTERS
CONTROL CENTER
Plan
Left End Elevation Right End
52.5 28.8
22.4
4.0
18.227.0
95.6
58.2
7.2 38.1
7.4
22.0
21.5
5/22/2012Printed Date: Cherry Creek ReservoirJob:
Energy RecoveryProduct Type: MUA-1 DXMark:
CAPS 4.8.1006 H:\Greenheck\2012 LJG\Cherry Creek Reservoir.gcj Page 8 of 12
Cherry Creek Reservoir Aeration Compressor Evaluation
Sound Power by Octave BandSoundData 62.5 125 250 500 1000 2000 4000 8000 LwA dBA Sones
Inlet 78 83 85 81 77 74 68 63 83 72 19.4
MotorMotor
MountedSize(hp) V/C/P Encl. Motor
RPM WindingsNECFLA*
(Amps)Yes 1/2 208/60/1 ODP 1725 1 5.4
Notes:All dimensions shown are in units of in.*FLA - based on tables 150 or 148 of National ElectricalCode 2002. Actual motor FLA may vary, for sizing thermaloverload, consult factory.LwA - A weighted sound power level, based on ANSI S1.4dBA - A weighed sound pressure level, based on 11.5 dBattenuation per Octave band at 5.0 ft - dBA levels are notlicensed by AMCA InternationalSones - calculated using AMCA 301 at 5.0 ft
4/27/2012Printed Date: Cherry Creek ReservoirJob:
FanProduct Type: SFS-1, 2 REV3Mark:
CAPS 4.8.1006 H:\Greenheck\2012 LJG\Cherry Creek Reservoir.gcj Page 2 of 6
Assembly DrawingType: Sidewall Belt Drive Supply Fan
HOUSINGMOUNTING
FLANGE
OSHAAPPROVED
GUARD
AIR FLOWWALL OPENING 33.75 SQ.
LONG WALLHOUSING
WA
LL
-INTE
RIO
R-
-EX
TER
IOR
-
WA
LL
CLOSURE ANGLES
supply fans can carry rain or snow into the building
DAMPER WITHACTUATOR
32.25
38.25
43
Notes: All dimensions shown are in units of in.
4/27/2012Printed Date: Cherry Creek ReservoirJob:
FanProduct Type: SFS-1, 2 REV3Mark:
CAPS 4.8.1006 H:\Greenheck\2012 LJG\Cherry Creek Reservoir.gcj Page 4 of 6
DAMPER
TYP. SECTION VIEW
2626
5.010.0Min.
1.3max. 1.3
max.
Standard Construction Features:- Model VCD-23 is a well built low leakage control damper for automatic control or manual balancing applications - Galvanized16 ga channel frame - Galvanized blades with reinforcements - Side mounted steel linkage is concealed in the frame to preventadditional pressure drop - Axles are steel and 0.5 in dia.- Synthetic axle bearings - Width and height furnished approximately0.25 in undersized - Field wiring is required to individual components
Lubrication DataOil Pressure -Normal Operation 45 psig 3.1 bargOil Temperature -Normal Operation 135 oF 57 oCOil Pump Type positive displacement, gear type Sump Capacity 9 US Gal 34 LiterTotal System Capacity 10.5 US Gal 40 Liter
Cooling Data (115oF/46oC maximum ambient temperature)Heat Removal at 68oF(20oC) (2)
Aftercooler Inlet Temperature (@ full load) 380 oF 193 oCAftercooler CTD (3) 25 oF 13.9 oCCooling Air Fan Power 5 HP 3.7 kWCooling Air Flow 8000 CFM 227 m3/minMaximum Added Static Pressure 0.25 Inches H2O 62 Pa
Cooling Air ∆T Approx. 32 oF 18 oC
Sound Level (4)Sound Pressure 76 dB(A)
Sierra ®Two-Stage Oil-free Air Compressor
L100A
ENGINEERING DATARef: L100A Page 2Date: 11/25/03
Davidson, NC
Electrical DataMain Drive Motor (5) (7)Nominal Shaft Power 100 HP 75 kWNumber of Poles 2Motor Speed 3575 rpmMotor Frame Size ODP 404T
TEFC 405TSDEfficiency at Full Load ODP 94.8 %
TEFC 94.7 %Power Factor at Full Load ODP 0.842
TEFC 0.816Compressor Full Load Current at 200 V 271 AMPS
230 V 236 AMPS460 V 118 AMPS575 V 94 AMPS
Locked Rotor Current at 200 V 2604 AMPS230 V 2264 AMPS460 V 1132 AMPS575 V 906 AMPS
IEC Starter Size (8) 200 V B250230 V B180460 V C85575 V C72
Fan MotorNominal Shaft Power 5 HP 3.7 kWNumber of Poles 4Fan Motor Speed 1745 rpmFan Motor Frame Size TEFC 184TEfficiency at Full Load TEFC 87.5 %Power Factor at Full Load TEFC 0.82Full Load Current at 200 V 14 AMPS
230 V 13 AMPS460 V 7 AMPS575 V 5 AMPS
Total Package (5)Total Installed Package Shaft Power 107 BHP 80 kWFull Load Package Current at 200 V 286 AMPS
230 V 249 AMPS460 V 124 AMPS575 V 99 AMPS
Construction - General Data (6)Package Dimension - Length 88.5 Inches 2246 mmPackage Dimension - Width 54.0 Inches 1371 mmPackage Dimension - Height 75.4 Inches 1913 mmShipping Weight - Total Package, Std. Scope 5500 lb 2495 kgCompression Module Only 1235 lb 560 kgDrive Motor Only - ODP 700 lb 318 kgAir Discharge Pipe Connection 1.5 Inch NPTIntercooler Condensate Drain 0.5 Inch NPTAftercooler Condensate Drain 0.5 Inch NPTElectrical Power Inlet Cable Diameter 3.0 Inches 76 mm
Notes (1) FAD (Free Air Delivery) is actual flow rate at the compressor inlet measured atthe discharge terminal point of the package in accordance with ISO1217 Annex C.
(2) Heat removal including latent heat(3) CTD (Cold Temperature Difference) based on 100oF/38oC inlet air at 40% relative humidity.(4) Sound levels are "free field conditions" per CAGI/Pneurop, ±3 dB(A)(5) Electrical data based on Reliance ODP motors (unless otherwise stated)(6) For details on dimensions and piping conditions see General Arrangement Drawing.(7) Motor rating is maintained up to an altitude of 3,000 ft. above sea level.(8) Starter data is for the 1M/2M drive motor contactor in a Star Delta starter.
L100A
Sierra ®Two-Stage Oil-free Air Compressor
ENGINEERING DATARef: H100A Page 1Date: 11/25/03Cancels: All Previous
Lubrication DataOil Pressure -Normal Operation 45 psig 3.1 bargOil Temperature -Normal Operation 135 oF 57 oCOil Pump Type positive displacement, gear type Sump Capacity 9 US Gal 34 LiterTotal System Capacity 10.5 US Gal 40 Liter
Cooling Data (115oF/46oC maximum ambient temperature)Heat Removal at 68oF(20oC) (2)
Aftercooler Inlet Temperature (@ full load) 404 oF 207 oCAftercooler CTD (3) 25 oF 13.9 oCCooling Air Fan Power 5 HP 3.7 kWCooling Air Flow 8000 CFM 227 m3/minMaximum Added Static Pressure 0.25 Inches H2O 62 Pa
Cooling Air ∆T Approx. 34 oF 19 oC
Sound Level (4)Sound Pressure 76 dB(A)
Sierra ®Two-Stage Oil-free Air Compressor
H100A
ENGINEERING DATARef: H100A Page 2Date: 11/25/03
Davidson, NC
Electrical DataMain Drive Motor (5) (7)Nominal Shaft Power 100 HP 75 kWNumber of Poles 2Motor Speed 3575 rpmMotor Frame Size ODP 404T
TEFC 405TSDEfficiency at Full Load ODP 94.8 %
TEFC 94.7 %Power Factor at Full Load ODP 0.842
TEFC 0.816Compressor Full Load Current at 200 V 286 AMPS
230 V 249 AMPS460 V 124 AMPS575 V 100 AMPS
Locked Rotor Current at 200 V 2604 AMPS230 V 2264 AMPS460 V 1132 AMPS575 V 906 AMPS
IEC Starter Size (8) 200 V B250230 V B180460 V C85575 V C72
Fan MotorNominal Shaft Power 5 HP 3.7 kWNumber of Poles 4Fan Motor Speed 1745 rpmFan Motor Frame Size TEFC 184TEfficiency at Full Load TEFC 87.5 %Power Factor at Full Load TEFC 0.82Full Load Current at 200 V 14 AMPS
230 V 13 AMPS460 V 7 AMPS575 V 5 AMPS
Total Package (5)Total Installed Package Shaft Power 113 BHP 84 kWFull Load Package Current at 200 V 301 AMPS
230 V 262 AMPS460 V 131 AMPS575 V 105 AMPS
Construction - General Data (6)Package Dimension - Length 88.5 Inches 2246 mmPackage Dimension - Width 54.0 Inches 1371 mmPackage Dimension - Height 75.4 Inches 1913 mmShipping Weight - Total Package, Std. Scope 5500 lb 2495 kgCompression Module Only 1235 lb 560 kgDrive Motor Only - ODP 700 lb 318 kgAir Discharge Pipe Connection 1.5 Inch NPTIntercooler Condensate Drain 0.5 Inch NPTAftercooler Condensate Drain 0.5 Inch NPTElectrical Power Inlet Cable Diameter 3.0 Inches 76 mm
Notes (1) FAD (Free Air Delivery) is actual flow rate at the compressor inlet measured atthe discharge terminal point of the package in accordance with ISO1217 Annex C.
(2) Heat removal including latent heat(3) CTD (Cold Temperature Difference) based on 100oF/38oC inlet air at 40% relative humidity.(4) Sound levels are "free field conditions" per CAGI/Pneurop, ±3 dB(A)(5) Electrical data based on Reliance ODP motors (unless otherwise stated)(6) For details on dimensions and piping conditions see General Arrangement Drawing.(7) Motor rating is maintained up to an altitude of 3,000 ft. above sea level.(8) Starter data is for the 1M/2M drive motor contactor in a Star Delta starter.
H100A
Sierra ®Two-Stage Oil-free Air Compressor
ENGINEERING DATARef: L125A Page 1Date: 11/25/03Cancels: All Previous
Lubrication DataOil Pressure -Normal Operation 45 psig 3.1 bargOil Temperature -Normal Operation 135 oF 57 oCOil Pump Type positive displacement, gear type Sump Capacity 11 US Gal 42 LiterTotal System Capacity 13 US Gal 49 Liter
Cooling Data (115oF/46oC maximum ambient temperature)Heat Removal at 68oF(20oC) (2)
Aftercooler Inlet Temperature (@ full load) 372 oF 189 oCAftercooler CTD (3) 19 oF 10.6 oCCooling Air Fan Power 7.5 HP 5.6 kWCooling Air Flow 15000 CFM 425 m3/minMaximum Added Static Pressure 0.25 Inches H2O 62 Pa
Cooling Air ∆T Approx. 25 oF 14 oC
Sound Level (4)Sound Pressure 79 dB(A)
Sierra ®Two-Stage Oil-free Air Compressor
L125A
ENGINEERING DATARef: L125A Page 2Date: 11/25/03
Davidson, NC
Electrical DataMain Drive Motor (5) (7)Nominal Shaft Power 125 HP 93 kWNumber of Poles 4Motor Speed 1775 rpmMotor Frame Size ODP 405T
TEFC 444TEfficiency at Full Load ODP 94.7 %
TEFC 95.3 %Power Factor at Full Load ODP 0.833
TEFC 0.839Compressor Full Load Current at 200 V N/A AMPS
230 V 321 AMPS460 V 160 AMPS575 V 128 AMPS
Locked Rotor Current at 200 V N/A AMPS230 V 1544 AMPS460 V 772 AMPS575 V 618 AMPS
IEC Starter Size (8) 200 V N/A230 V B250460 V B110575 V C85
Fan MotorNominal Shaft Power 10 HP 7.5 kWNumber of Poles 4Fan Motor Speed 1765 rpmFan Motor Frame Size TEFC 215TEfficiency at Full Load TEFC 91 %Power Factor at Full Load TEFC 0.81Full Load Current at 200 V N/A AMPS
230 V 26 AMPS460 V 13 AMPS575 V 10 AMPS
Total Package (5)Total Installed Package Shaft Power 143 BHP 107 kWFull Load Package Current at 200 V N/A AMPS
230 V 346 AMPS460 V 173 AMPS575 V 139 AMPS
Construction - General Data (6)Package Dimension - Length 106.0 Inches 2691 mmPackage Dimension - Width 62.5 Inches 1586 mmPackage Dimension - Height 93.4 Inches 2370 mmShipping Weight - Total Package, Std. Scope 6437 lb 2920 kgCompression Module Only 1168 lb 530 kgDrive Motor Only - ODP 1110 lb 503 kgAir Discharge Pipe Connection 2.0 Inch NPTIntercooler Condensate Drain 0.5 Inch NPTAftercooler Condensate Drain 0.5 Inch NPTElectrical Power Inlet Cable Diameter 3.0 Inches 77 mm
Notes (1) FAD (Free Air Delivery) is actual flow rate at the compressor inlet measured atthe discharge terminal point of the package in accordance with ISO1217 Annex C.
(2) Heat removal including latent heat(3) CTD (Cold Temperature Difference) based on 100oF/38oC inlet air at 40% relative humidity.(4) Sound levels are "free field conditions" per CAGI/Pneurop, ±3 dB(A)(5) Electrical data based on Reliance ODP motors (unless otherwise stated)(6) For details on dimensions and piping conditions see General Arrangement Drawing.(7) Motor rating is maintained up to an altitude of 3,000 ft. above sea level.(8) Starter data is for the 1M/2M drive motor contactor in a Star Delta starter.
L125A
Sierra ®Two-Stage Oil-free Air Compressor
ENGINEERING DATARef: H125A Page 1Date: 11/25/03Cancels: All Previous
Lubrication DataOil Pressure -Normal Operation 45 psig 3.1 bargOil Temperature -Normal Operation 135 oF 57 oCOil Pump Type positive displacement, gear type Sump Capacity 11 US Gal 42 LiterTotal System Capacity 13 US Gal 49 Liter
Cooling Data (115oF/46oC maximum ambient temperature)Heat Removal at 68oF(20oC) (2)
Aftercooler Inlet Temperature (@ full load) 477 oF 247 oCAftercooler CTD (3) 19 oF 10.6 oCCooling Air Fan Power 7.5 HP 5.6 kWCooling Air Flow 15000 CFM 425 m3/minMaximum Added Static Pressure 0.25 Inches H2O 62 Pa
Cooling Air ∆T Approx. 25 oF 14 oC
Sound Level (4)Sound Pressure 79 dB(A)
Sierra ®Two-Stage Oil-free Air Compressor
H125A
ENGINEERING DATARef: H125A Page 2Date: 11/25/03
Davidson, NC
Electrical DataMain Drive Motor (5) (7)Nominal Shaft Power 125 HP 93 kWNumber of Poles 4Motor Speed 1775 rpmMotor Frame Size ODP 405T
TEFC 444TEfficiency at Full Load ODP 94.7 %
TEFC 95.3 %Power Factor at Full Load ODP 0.833
TEFC 0.839Compressor Full Load Current at 200 V N/A AMPS
230 V 321 AMPS460 V 160 AMPS575 V 128 AMPS
Locked Rotor Current at 200 V N/A AMPS230 V 1544 AMPS460 V 772 AMPS575 V 618 AMPS
IEC Starter Size (8) 200 V N/A230 V B250460 V B110575 V C85
Fan MotorNominal Shaft Power 10 HP 7.5 kWNumber of Poles 4Fan Motor Speed 1765 rpmFan Motor Frame Size TEFC 215TEfficiency at Full Load TEFC 91 %Power Factor at Full Load TEFC 0.81Full Load Current at 200 V N/A AMPS
230 V 26 AMPS460 V 13 AMPS575 V 10 AMPS
Total Package (5)Total Installed Package Shaft Power 143 BHP 107 kWFull Load Package Current at 200 V N/A AMPS
230 V 346 AMPS460 V 173 AMPS575 V 139 AMPS
Construction - General Data (6)Package Dimension - Length 106.0 Inches 2691 mmPackage Dimension - Width 62.5 Inches 1586 mmPackage Dimension - Height 93.4 Inches 2370 mmShipping Weight - Total Package, Std. Scope 6437 lb 2920 kgCompression Module Only 1168 lb 530 kgDrive Motor Only - ODP 1110 lb 503 kgAir Discharge Pipe Connection 2.0 Inch NPTIntercooler Condensate Drain 0.5 Inch NPTAftercooler Condensate Drain 0.5 Inch NPTElectrical Power Inlet Cable Diameter 3.0 Inches 77 mm
Notes (1) FAD (Free Air Delivery) is actual flow rate at the compressor inlet measured atthe discharge terminal point of the package in accordance with ISO1217 Annex C.
(2) Heat removal including latent heat(3) CTD (Cold Temperature Difference) based on 100oF/38oC inlet air at 40% relative humidity.(4) Sound levels are "free field conditions" per CAGI/Pneurop, ±3 dB(A)(5) Electrical data based on Reliance ODP motors (unless otherwise stated)(6) For details on dimensions and piping conditions see General Arrangement Drawing.(7) Motor rating is maintained up to an altitude of 3,000 ft. above sea level.(8) Starter data is for the 1M/2M drive motor contactor in a Star Delta starter.
H125A
Sierra ®Two-Stage Oil-free Air Compressor
Cherry Creek Reservoir Aeration Compressor Evaluation
APPENDIX J
ACOUSTICAL ANALYSIS
NEW YORK HONG KONG WASHINGTON, DC CHICAGO SAN FRANCISCO PRINCETON HOUSTON DENVER LONDON LAS VEGAS
DUBAI
Cherry Creek Reservoir Compressor Station Cherry Creek, CO Acoustical Noise Study February 27th, 2012 Prepared for: Scott McQuoid Eaton Energy Solutions, Inc 143 Union Blvd. Suite 350 Lakewood, CO 80228
TECHNOLOGY CONSULTANTS IN TELECOMMUNICATIONS, AUDIOVISUAL & ACOUSTICS 1822 Blake Street Suite 2A Denver, CO 80202 Tel: 720-482-0770 Fax: 720-482-0450
www.smwinc.com
Page 2 Shen Milsom & Wilke, Inc.
INTRODUCTION This report summarizes Shen Milsom Wilke’s findings pertaining to the sound generated from the Cherry Creek Reservoir compressor station. Acoustical testing was performed on the afternoon of February 8th, 2012. The purpose of the acoustical study was to document the noise levels generated by the compressor and identify possible noise mitigation measures to reduce the overall background noise levels in the marina and other adjacent park areas. The findings of this acoustical testing and study are detailed below. MEASUREMENT OVERVIEW Noise level measurements were conducted in following locations:
1. East side of compressor building (Louvers) 2. North side of compressor building 3. West side of compressor building (Louvered doors) 4. South side of compressor building 5. Road to South side of compressor building 6. Marina Parking lot to South East side of compressor building
MEASUREMENT CONDITIONS Temp: 45 to 50 degrees Wind: 10 to 15 mph MEASUREMENT EQUIPMENT The sound level meter used for this testing was an ANSI Type 1, IEC 60804 integrating sound level meter manufactured by 01dB, serial number 60202, with a model MCE 212, ½-inch microphone, serial number 67236. The system was calibrated at the beginning and end of the measurements with no shift greater than 0.1 dB in the calibration level. A wind screen rated for 20 mph was in place during the measurements. MEASUREMENT RESULTS
Location Description Measured Noise Level dBA
East side of building 76.6 North side of building 83.8 West side of building 70.1 South side of building 67.0 Road at South side of building
59.0
Marina Parking Lot 53.8 Please see attached graph G-1 for spectral content of noise level measurements. MEASUREMENT RESULTS DISCUSSION The noise levels generated by the compressor were primarily transmitted through two paths from the compressor building. The first sound transmission path is through the ductwork on the North side of the building. The noise generated at this location has a significant tonal peak at 250 Hz of 86.6 dB. People typically find tonal noise sources more annoying and disruptive than broadband noise sources. However, the location of this ductwork, directed away from the marina and public areas, provides a noise barrier effect to the marina and park areas south of the compressor building.
Page 3 Shen Milsom & Wilke, Inc.
PHOTO P-1: Ductwork to North Exterior The second path is through the louvers on the East side of the building. The noise generated at this location is more broadband in nature with less significant tonal peaks at 1000 and 2000 Hz of 76.5 dB and 73.3 dB, respectively. However, the location of the louvers is in the direct line of sight of the marina and is the primary noise source audible within the marina parking lot.
PHOTO P-2: LOUVER ON EAST SIDE OF BUILDING RECOMMENDATIONS We understand that the current configuration will accept very little increase in static pressure. Therefore, we have provided recommendations in an effort maximize the mitigation of the compressor noise while minimizing the addition of static pressure. We have not provided
Page 4 Shen Milsom & Wilke, Inc.
recommendations such as acoustical louvers or attenuators because of the potential change in static pressure however these mitigation measures are available. Based on the measurement results and the conditions noted during our acoustical study, we have the following recommendations to mitigate the noise levels generated by the compressor to the marina and other park areas located to the South of the building:
1. Incorporate a barrier wall on the east and south side of the louvers as needed to block the line of sight from the marina and public areas. The barrier should be solid and continuous construction with enough length and height to block the line of sight as described above. We recommend incorporating 2 inch thick absorptive material with a minimum NRC rating of 0.70 such as the Acoustical Surfaces P.E.P.P Panel to the inside of the barrier wall facing the compressor building. Please see attached product information.
a. Adding a barrier wall may affect the required air circulation and should be reviewed by a mechanical engineer.
It is projected that the addition of the barrier wall will decrease the audible noise levels in the marina parking lot by 5 to 8 dB.
2. It is apparent from the noise level measurements that the 250 Hz peak from ductwork on
the North side of the building is still audible on the South and East sides of the building. Therefore, we recommend internally lining the circular ductwork, shown in photo P-1 above, with 1 inch thick ductliner or incorporating an engine grade muffler, if required for heat.
a. Adding internal ductliner may affect the required air flow which may require an increase in ductwork size and should be reviewed by a mechanical engineer.
It is projected that the addition of the internally lined ductwork will decrease the audible noise levels in the marina parking lot by 2 to 5 dB.
This concludes our comments at this time. The information described in the report above is based on information currently available. If additional information or conditions are made available, Shen Milsom & Wilke, Inc. reserves the right to revise or amend this report accordingly. Please contact us with any questions. Respectfully submitted: Kelly Stumpf Associate
Page 7 Shen Milsom & Wilke, Inc.
Acoustical Surfaces, Inc.Soundproofing, Acoustics, Noise & Vibration Control Specialists
123 Columbia Court North = Suite 201 = Chaska, MN 55318(952) 448-5300 = Fax (952) 448-2613 = (800) 448-0121