﻿ boiler energy saving device efficiency calculation method

boiler energy saving device efficiency calculation method

INCREASING THE ENERGY EFFICIENCY OF BOILER AND HEATER ...

Energy output (boiler thermal efficiency) is between 75 and 77 percent. Recent examples: A chemical plant is saving \$500000 per year by checking for and replacing all leaking steam traps. A plywood plant reduced its steam load by 2700 kg/h (6000 lb./h) by upgrading its piping insulation.

Methods for Calculating CHP Efficiency | Combined Heat and ...

Typical boiler efficiencies are 80 percent for natural gas-fired boilers 75 percent for biomass-fired boilers and 83 percent for coal-fired boilers. The calculation of effective electric efficiency is the CHP net electric output divided by the additional fuel the CHP system consumes over and above what would have been used by a boiler to ...

Methods for Calculating CHP Efficiency | Combined Heat and ...

Q FUEL - (Q TH / ) For example if a CHP system is natural gas-fired and produces steam then represents the efficiency of a conventional natural gas-fired boiler. Typical boiler efficiencies are 80 percent for natural gas-fired boilers 75 percent for biomass-fired

(PDF) Boiler Efficiency Measurement and Energy Saving ...

From above analysis if thickness is further increased then more fuel saving energy saving is possible.Fig. 1 :1Fig. 1: x A NPV of annual O & M cost for service life of 5 years NPV = i=1 n [CF / (1+i) ] Total insulation cost CT = Material cost+Labour cost+NPV O & M Net saving S' = S -CT Payback period PP = (Capital cost / Net annual savings)