Boiler Monitoring* ForSuperior* Performance*...Boiler Monitoring* Performance*Monitoring* • Graphical*tracking*of*boiler*performance* • A*graph*is*worth*athousand*words* * ...
Post on 03-Oct-2020
18 Views
Preview:
Transcript
www.dcmlogic.com
For Superior Performance
NE Biomass Hea:ng EXPO – April 10, 2014
Boiler Monitoring
Performance Monitoring
• Graphical tracking of boiler performance • A graph is worth a thousand words Lists of numbers mislead…
…plots of numbers reveal!
www.dcmlogic.com
No Customer Complaints… But Is Everything Really OK?!
Pellet F
eed Ra
te
Boiler/Bu
ffer T
emps
Each ver:cal line = 1 boiler startup
31 cycles/day!
Add One Skilled Technician With a Monitor on His Mobile Phone...
Pellet F
eed Ra
te
Boiler/Bu
ffer T
emps
Now, only 10 cycles/day
Smoother Heat Produc:on
www.dcmlogic.com
Cri:cal Elements To Monitor 1. Short cycling is bad
Inefficiency, emissions, wear and tear Waste of oil/propane!
2. External control of boilers can be harmful 3. Boiler hygiene ma\ers! 4. Is heat distributed properly?
Are circulators doing their jobs? Does distribu:on interfere with hea:ng plant?
à Substan:al fuel savings are possible!
Short Cycling: Parameter Choice Ma\ers!
Pellet Bin Levels
Scheduled Time to Refill Green Boiler Bin
Scheduled Time to Refill Red Boiler Bin
Stop to clean aaer running 8 hours
Pellet F
eed Ra
te
Red takes over
Green takes over
Green takes over
www.dcmlogic.com
Short Cycling: Skillful Parameter Adjustments Bo
iler/Bu
ffer T
emps
Pellet F
eed Ra
te
Before Aaer Short Cycling Boiler Temp Spikes Uneven Output
Long Run Times No Temp Spikes Smooth Output
Be wary of too many cooks…
“Helpful” boiler disable commands from BEMS
Pellet F
eed Ra
te
External Boiler C
ontrol
Three VERY short cycles!
www.dcmlogic.com
Boiler Hygiene
• Cleaning the boiler can boost output > 10% – Efficiency improves – Fossil backups less likely to come on – Moving parts less likely to bind and break
• Do you have a regular, documented cleaning program?
Heat Distribu:on: Circulators Take a Rest
Circs turn off
Fuel Feed/Circ Spe
ed
Boiler T
empe
rature
Temps spike
www.dcmlogic.com
Heat Distribu:on: Too Much of a Good Thing!
Tempe
ratures Boiler
Boiler Off
Circ Off
Fuel Feed/Circ Spe
ed
25 Minutes
Buffer Tank Cooled by Run-‐on Circ
Pellet Feed
Circ Speed
Monitoring + Adjustment = Savings
Parameters changed
Daily Fuel Consump:on
Cumula:ve Fuel Consump:on
Cumula:
ve Daybins
Daybins p
er Day
Before Aaer
Parameters changed
top related