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A new cogeneration system which integrates a solar-assisted absorption heat pump (SAAHP) into a coal-fired power plant for waste heat recovery of exhausted steam from a steam turbine is presented to improve utilization efficiency of fossil fuels. This study compares the performances of three cogeneration systems which differ in their driving heat source of AHP in the heating system. The following...
The CCHP (combined cooling, heating, and power) system, especially combined with the SOFC (solid oxide fuel cell), has great potential for improving energy utilization efficiency. Therefore an integrated SOFC–CCHP system, fueled by COG (coke oven gas) which contains large amount of hydrogen, has been designed and proposed in this paper. The flue gas exhausted from the HRSG (heat recovery steam generator)...
According to the physical and chemical energy cascade utilization and concept of synthesis integration of variety cycle systems, a new humid air turbine (HAT) cycle with solar energy for methanol decomposition has been proposed in this paper. The solar energy is utilized for methanol decomposing as a heat source in the HAT cycle. The low energy level of solar energy is supposed to convert the high...
In this paper, a new type of gas turbine cycle has been proposed based on an innovative combination of a newly designed HAT cycle with an externally fired heater. In this manner, ''dirty'' fuels such as coal and biomass can be more efficiently used than before and the water in this cycle can be recycled. This is radically different from the conventional HAT cycle. In particular, the temperature of...
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