Assessment of a CHP system based on economical, fuel consumption and environmental considerations

Economic analysis of biomethane and bioelectricity generation from biogas using different support schemes and plant configurations

“…Therefore, the most widely used biogas related power technology in Europe is CHP (combined heat and power). Unfortunately, one of major deficiencies of distributed CHP systems [1] is their limited electrical efficiency (typically 35e40%). Another part of biogas energy content is converted to the form of renewable heat (about 40%), but with the exception of digester thermal control or optional digestate drying, a great amount of cogenerated heat is dissipated and wasted.…”

Renewable energy from biogas with reduced carbon dioxide footprint: Implications of applying different plant configurations and operating pressures

“…In Table 4 it is seen that the CHP unit [114] consists of a 12 cylinder gas engine [85] and has the displayed electrical and thermal efficiencies ranging between 41 and 45%. The efficiencies for the combustion of biomethane are slightly higher due to its higher energy density and the lack of CO 2 dilution leading to higher flame velocity and combustion temperature.…”

Optimal sizing of gas engine in combined cooling heat and power systems by a proposed evaluation function and genetic algorithm optimization methods based on 4E analysis

“…Their results indicated that the primary energy consumption savings for three prime movers were >8%. Abbasi et al used an ICE with natural gas fuel as prime mover in the CHP system for an educational building. The CHP system for building is measured under various sizes of engine, between 200 to 1800 kW.…”