130911 eapic nairobi biogas web
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This document compares the efficiencies of a conventional power plant, a gas-fuelled combined heat and power (CHP) plant, and other gas power solutions. A CHP plant generates both electricity and useful heat on-site, achieving an overall efficiency of 90% compared to 33.5% for a conventional plant. A CHP plant reduces carbon dioxide emissions by 48% and primary energy use by 42% relative to separate electricity and heat production.
130911 eapic nairobi biogas web
- 11. Fuel (100%) Electricity for transmission (35%) Generation/heat losses (65%) Conventional Power Plant Gas-fuelled CHP plant 90% Efficiency Generation/heat losses (10%) Fuel (100%) Electricity (45%) Useful Heat (45%) Transmission Losses (1.5%) Supplied electricity (efficiency) 33.5%
- 12. 2.08 kWh loss 4.33 kWh 1.00 kWh electricity 1.25 kWh heat Steam turbine Boiler 1.47 kWh 2.86 kWh 2.5 kWh Gas Supply 1.00 kWh electricity 0.25 kWh losses 1.25 kWh heat CHP engine 0.669 kg CO2 0.294 kg CO2 0.963 kg CO2 0.5 kg CO2 48% CO2 reduction 42% Primary Energy Savings
- 27. OTHER GAS TO POWER SOLUTIONS
Editor's Notes
- #38: Tanzanian gas is ch