Thermodynamic Performance and Carbon Emission Analysis of Distributed Energy Supply System Based on Solar Thermochemistry

doi:10.12096/j.2096-4528.pgt.20013

Abstract

Abstract:

Distributed energy supply system is installed close to end-users with advantages of flexible consumption of renewable energy. Distributed energy supply system with integrating solar energy and clean fuel was conducted to achieve efficient utilization of solar energy and fuel. A distributed energy supply system based on the solar thermochemistry was proposed. The system integrated solar thermochemistry conversion and distributed energy system combined cooling, heating and power. The solar and methanol were complemented at the source in a thermochemical form, and the solar was converted into chemical energy of syngas, the cold, heat and power products were then exported through the internal combustion engine electric generator and waste heat recovery units to meet the load demand of users. Through numerical calculation method, the thermodynamic performance and CO₂ emission performance of the integrated system were analyzed, and the performance under design and variable operating conditions was studied. The results show that the integrated solar energy and fuel thermochemical complementary energy supply system has significant advantages of energy saving and emission reduction.

Key words: solar thermochemistry, distributed energy supply system, methanol decomposition, carbon emission

CLC Number:

TK121

Taixiu LIU,Qibin LIU,Jun SUI,Tieyin ZHANG. Thermodynamic Performance and Carbon Emission Analysis of Distributed Energy Supply System Based on Solar Thermochemistry[J]. Power Generation Technology, 2020, 41(3): 212-219.

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