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以天然气为燃料,燃气轮机驱动的建筑冷、热、电联产系统具有能源效率高,污染物排放少,供能安全、可靠等优点。将蓄能与联供系统相结合,选择合适的蓄能位置,对改善系统变工况性能意义重大。本文建立了带理想蓄能装置的冷电联产系统(燃气轮机、吸收机)简化数学模型,以一次能耗最小为目标,分析比较了不同蓄能位置对系统性能的影响。结果表明在联供系统中加入蓄能装置能有效起到减容增效的作用,理想蓄能装置放在吸收机后更有利于提高系统性能。
Natural gas as fuel, gas turbine-driven building cooling, heating, electricity generation system with high energy efficiency, less pollutant emissions, energy security, reliability and so on. The combination of energy storage and power supply system, select the appropriate energy storage location, to improve the performance of the system variable conditions of great significance. In this paper, a simplified mathematical model of a cogeneration system (gas turbine, absorption machine) with an ideal energy storage device is established. The objective of minimizing primary energy consumption is to analyze and compare the impact of different energy storage locations on system performance. The results show that adding energy storage device in the co-supply system can effectively reduce the volume and increase the efficiency. The ideal energy storage device is better to improve the system performance after being placed in the absorber.