技术中心

【英文篇名】 Exergy economy analysis and comparison of three kinds of refrigerating machines used in air conditioning systems 【作者中文名】 路诗奎; 张小松; 【作者英文名】 Lu Shikui and Zhang XiaoSong Southeast University; Nanjing; China; 【作者单位】 东南大学; 【文献出处】 暖通空调, Heating Ventilating ?经济性; ?效率; ?成本; 【英文关键词】 refrigerating machine; exergy economy; exergy efficiency; exergy cost; 【摘要】 利用?成本方程,建立了制冷机?经济性分析的模型,并结合北京地区旅馆类建筑空调系统的实例,分析比较了蒸气压缩离心式、双效溴化锂吸收式、直燃溴化锂吸收式三种不同制冷机的?经济性。分析结果表明,从有效能的利用和经济性角度考虑,虽然溴化锂吸收式制冷机不省能,但经济性较好。其中存在价格因素,在现行价格体系下,单位燃料动力的?成本,煤炭是电力的1／10。这也说明当前我国的能源价格不合理,特别是电力价格相对于煤炭价格过高。 【英文摘要】 Using the exergy cost equation, establishes a model of exergy economy analysis for refrigerating machines. Combined with an air conditioning system of a hotel in Beijing area, compares the exergy economy among the vapor compression refrigerating machine, double-effect lithium-bromide absorption-type refrigerating machine and direct-fired lithium-bromide absorption-type refrigerating machine. The results show that the economy of lithium-bromide absorption-type refrigerating machine is better though it can no...