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Saving Energy Savings with HVLS FansSaving Energy Savings with HVLS Fans
J h EddJ h EddJ h EddJ h EddJosh EddyJosh EddyLEEDLEED--APAPNational Sales ManagerNational Sales ManagerBig Ass FansBig Ass Fans
Josh EddyJosh EddyLEEDLEED--APAPNational Sales ManagerNational Sales ManagerBig Ass FansBig Ass Fans
The worlds largest manufacturer of large, The worlds largest manufacturer of large, high efficiency ceiling fanshigh efficiency ceiling fansThe worlds largest manufacturer of large, The worlds largest manufacturer of large, high efficiency ceiling fanshigh efficiency ceiling fans
Headquartered in Lexington, KYHeadquartered in Lexington, KY
Direct Regional sales representativesDirect Regional sales representatives
Headquartered in Lexington, KYHeadquartered in Lexington, KY
Direct Regional sales representativesDirect Regional sales representativesDirect Regional sales representatives Direct Regional sales representatives NationwideNationwide
40 000+40 000+ fans installed world widefans installed world wide
Direct Regional sales representatives Direct Regional sales representatives NationwideNationwide
40 000+40 000+ fans installed world widefans installed world wide40,000+40,000+ fans installed world widefans installed world wide40,000+40,000+ fans installed world widefans installed world wide
Custom designed airfoil (not flat blades)Custom designed airfoil (not flat blades)Maximize airflow (at all fan speeds)Maximize airflow (at all fan speeds)Minimize power consumption & noiseMinimize power consumption & noise
Custom designed airfoil (not flat blades)Custom designed airfoil (not flat blades)Maximize airflow (at all fan speeds)Maximize airflow (at all fan speeds)Minimize power consumption & noiseMinimize power consumption & noiseMinimize power consumption & noiseMinimize power consumption & noise
Powerfoil ElementPowerfoil Element
Minimize power consumption & noiseMinimize power consumption & noise
Powerfoil ElementPowerfoil ElementPowerfoil ElementPowerfoil ElementPowerfoil ElementPowerfoil Element
Quiet enough for use in a Quiet enough for use in a library (<40 dBA at full library (<40 dBA at full speed)speed)Fits ceilings as low as 12 ftFits ceilings as low as 12 ftFits ceilings as low as 12 ftFits ceilings as low as 12 ftFan diameters 8 ft, 9 ft, 10 Fan diameters 8 ft, 9 ft, 10 ftftWeighs under 100 lbsWeighs under 100 lbs
Moves more air than nine 52” Moves more air than nine 52” hi hhi h d ili fd ili fhighhigh--speed ceiling fansspeed ceiling fansEnergy consumption Energy consumption comparable to a refrigerator comparable to a refrigerator comparable to a refrigerator comparable to a refrigerator light bulblight bulbYearYear--round energy savingsround energy savings•• Summer savings of 10Summer savings of 10--15% by 15% by
providing a cooling breezeproviding a cooling breeze•• Winter savings of up to 25% by Winter savings of up to 25% by
gently moving warm air toward gently moving warm air toward the floorthe floor
Stratification in Heating ModeStratification in Heating Mode
Diffi lt t b l h ti d li Diffi lt t b l h ti d li Diffi lt t b l h ti d li Diffi lt t b l h ti d li Difficult to balance heating and cooling Difficult to balance heating and cooling requirements with one distribution systemrequirements with one distribution systemWarmer air rises toward the ceilingWarmer air rises toward the ceiling
Difficult to balance heating and cooling Difficult to balance heating and cooling requirements with one distribution systemrequirements with one distribution systemWarmer air rises toward the ceilingWarmer air rises toward the ceilingWarmer air rises toward the ceilingWarmer air rises toward the ceilingStratification of Stratification of 0.75 0.75 --1.0 F1.0 F°°/ft/ftWarmer air rises toward the ceilingWarmer air rises toward the ceilingStratification of Stratification of 0.75 0.75 --1.0 F1.0 F°°/ft/ft
Mixing the air from floor to ceiling allows for lower Mixing the air from floor to ceiling allows for lower averageaverage building building temperature* without loss of comfort. temperature* without loss of comfort. Mixing the air from floor to ceiling allows for lower Mixing the air from floor to ceiling allows for lower averageaverage building building temperature* without loss of comfort. temperature* without loss of comfort.
Uniform air temperature eliminates cold spots at the floor level.Uniform air temperature eliminates cold spots at the floor level.Uniform air temperature eliminates cold spots at the floor level.Uniform air temperature eliminates cold spots at the floor level.
HVLS HVLS ceiling fans can provide substantial winter energy savings from ceiling fans can provide substantial winter energy savings from destratification.destratification.HVLS HVLS ceiling fans can provide substantial winter energy savings from ceiling fans can provide substantial winter energy savings from destratification.destratification.
HVLS HVLS fans are needed to achieve air circulation without exceeding fans are needed to achieve air circulation without exceeding 40 40 fpm at head height that will result in draft complaints.fpm at head height that will result in draft complaints.HVLS HVLS fans are needed to achieve air circulation without exceeding fans are needed to achieve air circulation without exceeding 40 40 fpm at head height that will result in draft complaints.fpm at head height that will result in draft complaints.
HVLS HVLS fans at low speed offer much greater aerodynamic efficiencies fans at low speed offer much greater aerodynamic efficiencies (up to 1500 (up to 1500 cfmcfm/W) compared to smaller faster fans (300 /W) compared to smaller faster fans (300 cfmcfm/W)./W).HVLS HVLS fans at low speed offer much greater aerodynamic efficiencies fans at low speed offer much greater aerodynamic efficiencies (up to 1500 (up to 1500 cfmcfm/W) compared to smaller faster fans (300 /W) compared to smaller faster fans (300 cfmcfm/W)./W).
Fan LawsFan LawsRPM related to HPRPM related to HP33
Fan LawsFan LawsRPM related to HPRPM related to HP33
Example Example –– 1 hp (750 W) motor on fan1 hp (750 W) motor on fanExample Example –– 1 hp (750 W) motor on fan1 hp (750 W) motor on fan
100% Max RPM in reverse = 100% hp (750 W)100% Max RPM in reverse = 100% hp (750 W)100% Max RPM in reverse = 100% hp (750 W)100% Max RPM in reverse = 100% hp (750 W)
33% Max RPM forward = 1/3 x 1/3 x 1/3 x 1 hp33% Max RPM forward = 1/3 x 1/3 x 1/3 x 1 hp= 1/27 x 750 W= 1/27 x 750 W
33% Max RPM forward = 1/3 x 1/3 x 1/3 x 1 hp33% Max RPM forward = 1/3 x 1/3 x 1/3 x 1 hp= 1/27 x 750 W= 1/27 x 750 W
Savings from Using Elevated Air Speed for Savings from Using Elevated Air Speed for 11stst Stage of CoolingStage of Cooling11stst Stage of CoolingStage of CoolingRule of ThumbRule of ThumbRule of ThumbRule of ThumbEach degree of thermostat offset saves ~1.5% to 2% of cooling energy
- Exelon Corporation5°F = 7% to 10% reduction
Each degree of thermostat offset saves ~1.5% to 2% of cooling energy- Exelon Corporation
5°F = 7% to 10% reduction
TRACE 700 Model TRACE 700 Model -- 20,000 ft20,000 ft22 BuildingBuildingTRACE 700 Model TRACE 700 Model -- 20,000 ft20,000 ft22 BuildingBuildingLocation 75F Cooling 79.7F Cooling % Reductiong g
Open Spaces with heatingOpen Spaces with heatingCeiling heights of 14 to 125 footCeiling heights of 14 to 125 footOpen Spaces with heatingOpen Spaces with heatingCeiling heights of 14 to 125 footCeiling heights of 14 to 125 footExample Applications:Example Applications:•• WarehousesWarehouses•• ManufacturingManufacturing
Example Applications:Example Applications:•• WarehousesWarehouses•• ManufacturingManufacturing
RebateRebate based on gas savings.based on gas savings.•• $ per $ per ThermTherm saved ($1/saved ($1/thermtherm saved)saved)
RebateRebate based on gas savings.based on gas savings.•• $ per $ per ThermTherm saved ($1/saved ($1/thermtherm saved)saved)•• $ per fan installed ($1,000 per fan)$ per fan installed ($1,000 per fan)•• $ per fan installed ($1,000 per fan)$ per fan installed ($1,000 per fan)
IntroductionIntroduction to customers for fan application to customers for fan application site visit and free rebate savings analysis.site visit and free rebate savings analysis.IntroductionIntroduction to customers for fan application to customers for fan application site visit and free rebate savings analysis.site visit and free rebate savings analysis.
Joint Joint customer workshopscustomer workshops with utilities?with utilities?Joint Joint customer workshopscustomer workshops with utilities?with utilities?
17. On a scale of 1 to 10 rate the temperature at the top of space (10 being the
hottest, 1 being the temperature 5’ above the ground): _____________________
Rebate Project ExampleRebate Project Example
374,160 sq ft Building, 65 foot ceilings374,160 sq ft Building, 65 foot ceilingsPittsburgh, CAPittsburgh, CA(12) 20’ Powerfoil Big Ass Fans(12) 20’ Powerfoil Big Ass Fans
374,160 sq ft Building, 65 foot ceilings374,160 sq ft Building, 65 foot ceilingsPittsburgh, CAPittsburgh, CA(12) 20’ Powerfoil Big Ass Fans(12) 20’ Powerfoil Big Ass Fans(12) 20 Powerfoil Big Ass Fans(12) 20 Powerfoil Big Ass FansInstallation cost = $126,000 per fan (electrical estimated) Installation cost = $126,000 per fan (electrical estimated)
Estimated gas savings fromEstimated gas savings from destratificationdestratification =151 850=151 850 ThermsTherms/year/year
(12) 20 Powerfoil Big Ass Fans(12) 20 Powerfoil Big Ass FansInstallation cost = $126,000 per fan (electrical estimated) Installation cost = $126,000 per fan (electrical estimated)
Estimated gas savings fromEstimated gas savings from destratificationdestratification =151 850=151 850 ThermsTherms/year/yearEstimated gas savings from Estimated gas savings from destratificationdestratification 151,850 151,850 ThermsTherms/year/year
Pacific Gas & Electric rebate ($1/Pacific Gas & Electric rebate ($1/thermtherm up to 80% of project)up to 80% of project)
Estimated gas savings from Estimated gas savings from destratificationdestratification 151,850 151,850 ThermsTherms/year/year
Pacific Gas & Electric rebate ($1/Pacific Gas & Electric rebate ($1/thermtherm up to 80% of project)up to 80% of project)
***Gas rebate would be 80% or $100,800 if project was fans only******Gas rebate would be 80% or $100,800 if project was fans only***
Simple Payback for customer = less then 2 heating season monthsSimple Payback for customer = less then 2 heating season months
***Gas rebate would be 80% or $100,800 if project was fans only******Gas rebate would be 80% or $100,800 if project was fans only***
Simple Payback for customer = less then 2 heating season monthsSimple Payback for customer = less then 2 heating season months
Aynsley, R. (2005) Saving Heating Costs in Warehouses. Aynsley, R. (2005) Saving Heating Costs in Warehouses. ASHRAE ASHRAE Journal,Journal, vol. 47, No. 12, December, 46vol. 47, No. 12, December, 46--51.51.Aynsley, R. (2005) Saving Heating Costs in Warehouses. Aynsley, R. (2005) Saving Heating Costs in Warehouses. ASHRAE ASHRAE Journal,Journal, vol. 47, No. 12, December, 46vol. 47, No. 12, December, 46--51.51.
Aynsley, R. (2005) Saving energy with indoor air movement. Aynsley, R. (2005) Saving energy with indoor air movement. The The International Journal of VentilationInternational Journal of Ventilation, Vol. 4, No. 2, Sept., 167, Vol. 4, No. 2, Sept., 167--175.175.Aynsley, R. (2005) Saving energy with indoor air movement. Aynsley, R. (2005) Saving energy with indoor air movement. The The International Journal of VentilationInternational Journal of Ventilation, Vol. 4, No. 2, Sept., 167, Vol. 4, No. 2, Sept., 167--175.175.
ANSI/ASHRAE Standard 55ANSI/ASHRAE Standard 55--2004 2004 Thermal Environmental Conditions Thermal Environmental Conditions for Human Occupancyfor Human OccupancyANSI/ASHRAE Standard 55ANSI/ASHRAE Standard 55--2004 2004 Thermal Environmental Conditions Thermal Environmental Conditions for Human Occupancyfor Human Occupancy
ASHRAE Handbook of FundamentalsASHRAE Handbook of Fundamentals, 2005, Chapter 8, Indoor , 2005, Chapter 8, Indoor Environmental Health, pp. 8.1 Environmental Health, pp. 8.1 –– 8.208.20ASHRAE Handbook of FundamentalsASHRAE Handbook of Fundamentals, 2005, Chapter 8, Indoor , 2005, Chapter 8, Indoor Environmental Health, pp. 8.1 Environmental Health, pp. 8.1 –– 8.208.20
ASHRAE (1998) ASHRAE (1998) Field studies of thermal comfort and adaptationField studies of thermal comfort and adaptation, , ASHRAE Technical Data Bulletin, Vol.14ASHRAE Technical Data Bulletin, Vol.14, No.1. Atlanta: American , No.1. Atlanta: American Society of Heating, Refrigerating and AirSociety of Heating, Refrigerating and Air--Conditioning Engineers, Inc. Conditioning Engineers, Inc.
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OSHA Technical ManualOSHA Technical Manual, Section III: Chapter 4, on web at , Section III: Chapter 4, on web at www.osha.govOSHA Technical ManualOSHA Technical Manual, Section III: Chapter 4, on web at , Section III: Chapter 4, on web at www.osha.gov
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Khedari, J., Yamtraipat, N., Pratintong, N., and Hinrunlabbh, J. (2000) Khedari, J., Yamtraipat, N., Pratintong, N., and Hinrunlabbh, J. (2000) Thailand ventilation comfort chart. Thailand ventilation comfort chart. Energy and Buildings Vol. 32, pp. Energy and Buildings Vol. 32, pp. gy g , ppgy g , pp245245--249249