【摘 要】
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According to the principle of "parallel temperature and gradient energy utilization" and combined the nature characteristics of northwestern China,an integr
【机 构】
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Research Center of Solar Energy & Gas Hydrate,Lanzhou University of Technology,Lanzhou,China
论文部分内容阅读
According to the principle of "parallel temperature and gradient energy utilization" and combined the nature characteristics of northwestern China,an integrated system of combined cooling,heating,and power (CCHP) systems with the three-staged thermostatic biogas system was proposed and investigated.The integrated system can supply 40kW electric power,59.51kW cooling and 26.24kW heating.Based on the furst law of thermodynamics and the second law of thermodynamics,primary energy rate (PRE),exergy efficiency,and carbon dioxide emission reduction are used to evaluate and compare the performances of the integrated system with the conventional separated system.The primary energy rate and exergy efficiency of the integrated system is 78.82% and 29.08%,respectively.The rate of carbon dioxide emission reduction is 45.26%.The calculation result shows that the cogeneration system has a large potential for energy saving and environmental protect.
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