Investigated plant concepts with natural gas and syngas-based chemical looping method produce 500 MW hydrogen (based on lower heating value) covering ancillary power consumption with an almost total decarbonisation rate of the fossil fuels used.
The maximum system efficiency based on lower heating value (LHV) is 37% at 120.7 W.
The developed reformer unit generates 50 80 W (based on lower heating value) of hydrogen gas for applications in PEMFCs.
Using a burner efficiency based on lower heating values, up to 41.1% of methane was converted to H2 and CO at the equivalence ratio of 1.7.
The annulus-type micro reforming system is designed to produce 1 10 W (based on lower heating value, LHV) of hydrogen using various catalysts.
The annulus-type micro reforming system is designed to produce 1 10 W (based on lower heating value, LHV) of hydrogen using the steam reforming method.
The best grilled cheese results from cooking on lower heat for a longer time.
In this study, we investigated characteristics of spent coffee ground as a fuel and combustion characteristics in a small boiler system (6.5 kW based on input lower heating value), such as CO, NOx, O2 and heating characteristic of heating boiler.
The energy efficiency, based on the lower heating values (LHV), was defined as the energy output in the products (ethanol, biogas, electricity and district heat) divided by the energy input from feedstock (155.2 MW), molasses (7.0 MW), enzymes (9.4 MW), and the energy input in the form of electrical energy (converted to its heat equivalent, calculated using an electricity-to-heat ratio of 0.4).
The energy efficiency, based on the lower heating values, is defined as the energy output in the products (ethanol, pellets, biogas, electricity and district heat) divided by the energy input comprising raw material, molasses, enzymes and the fuel equivalent of the electric power requirement, which was calculated using an electricity-to-fuel ratio of 0.4.
This resulted in world-class solar to hydrogen efficiencies as high as 9.3% (based on H2 lower heating value, LHV).
