【摘要】 冷热电三联供是实现能源梯级利用的高效能源利用形式,也是提高能源综合效率的有效途径。文章以小型燃气轮机作为动力设备组成的系统为例,通过计算比较吸收式制冷和电压缩式制冷系统的一次能耗,对不同情况下制冷系统的节能效果进行了研究和分析。结果表明:当发电效率为40%时,节能效果有所降低,最小只有0.6%;当发电效率为55%,多数机组已不能满足节能性要求。更多还原

【Abstract】 CCHP is the efficient use of energy in the form of energy cascade utilization and an effective way to improve energy efficiency.By taking a system with small gas turbines as power equipment as an example and comparing the primary energy consumption between absorption refrigeration system and electric compression refrigeration system,the paper studies the energy-saving effect of the refrigeration system in the different cases.The results show: the energy-saving effect of absorption refrigeration system is much better during low average power generation efficiency;when the power generation efficiency increases to 40%,energy-saving effect will decrease,and the minimum is only 0.6%;when the power generation efficiency reaches 55%,the majority of units can not satisfy the energy-saving requirements.更多还原