Is there a formula for calculating the Boiler Thermal Efficiency using HHV. Should the modeled boiler efficiency be seasonal taking into account part load conditions. Is there any ASHRAE / LEED reference ?
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Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5907 thumbs up
January 11, 2017 - 10:11 am
You don't use a seasonal efficiency value. You use the boiler efficiency at rated conditions under 10 CFR part430/431. Then there is a boiler efficiency curve applied which contains the part-load efficiency.