太阳能辅助燃气蒸汽联合循环的冷热电联产系统
摘要:为解决单纯的太阳能热发电成本较高、能量利用率较低的问题，提出了一种基于太阳能辅助的燃气－蒸汽联合循环的冷热电联产系统。为了提高系统热电调节灵活性，将燃气轮机的烟气废热分为两部分进行梯级利用，一部分烟气分配到太阳能蒸汽联合循环模块进行发电和制生活热水，另一部分烟气分配到双效溴化锂吸收式热泵模块制冷。运用EBSILOB软件建立了该冷热电联产模型，模拟计算了系统设计工况的热力性能，讨论了太阳能变辐照强度和变烟气分配比对系统热力性能的影响。结果表明在设计工况下，系统一次能源利用率、㶲效率以及太阳能净发电率分别为69.7%、42.9%和25.0%。
Abstract：In order to solve the problems of high cost and low energy utilization rate of solar thermal power generation, a combined cooling, heating and power (CCHP) system based on solar-assisted gas-steam combined cycle is proposed. To improve the flexibility of thermoelectric regulation of the system, the exhaust heat from gas turbine is divided into two parts for cascade energy utilization. One part of the exhaust gas is sent to the gas-steam combined cycle for generating electricity, and another part is used to drive the dual-effect lithium bromide absorption heat pump to produce chilled water for air conditioning system. The thermodynamic models of system components were constructed in EBSILON software. The thermodynamic performances of the system at the design work conditions were simulated and the off-design performances were discussed in the variable solar irradiation intensity and ratio of exhaust gas to combined cycle and absorption heat pump. The results shows that the primary energy utilization efficiency, exergy efficiency and net solar power generation rate of the system are 69.7%, 42.9% and 25.0%, respectively.
标题：太阳能辅助燃气蒸汽联合循环的冷热电联产系统
title:A Combined Cooling, Heating and Power System Based on Solar-Assisted Gas-Steam Combined Cycle
作者：郝欣, 王江江
authors:HAO Xin, WANG Jiangjiang
关键词：太阳能热发电,燃气轮机,冷热电联产,热力学分析,
keywords:solar energy,gas turbine,combined cooling, heating and power,thermodynamic analysis,
发表日期：2019-12-30
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