Transportation of low-grade thermal energy over long distance by ammonia-water absorption  

作　　者：MA Qiang WANG RuZhu LUO LinGai XIA ZaiZhong LIN Peng 

机构地区：[1]Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai, 200240, China [2]Laboratoire Optimisation de la Conception et Ingenierie de I'Environnement, Polytech'Savoie, 73376, Le Bourget-Du-Lac, France

出　　处：《Chinese Science Bulletin》2009年第6期948-957,共10页

基　　金：Supported by Shanghai Municipal Science and Technology Committee (Grant No.06SR07106) in China;Shanghai Pujiang Program (Grant No.06PJ14061) in China and Programme Interdisciplinaire Energie du CNRS-"VALOTHERM" in France

摘　　要：This paper presents the importance and the cycle choice for long-distance transportation of low-grade thermal energy, and the thermodynamic and hydrodynamic feasibility of single-effect ammonia-water absorption system for heat or cold transportation over long distance are also involved. A model of a long-distance thermal energy transportation system is built and analyzed, which shows satisfactory and attractive results. When a steam heat source at 120℃ is available, the user site can get hot water output at about 55℃ with the thermal COP of about 0.6 and the electric COP of about 100 in winter, and cold water output at about 10℃ with the thermal COP of about 0.5 and the electric COP of 50 in summer. A small-size prototype is built to verify the performance analysis. Basically the experimental data show good accordance with the analysis results. The ammonia-water absorption system is a potential pro-spective solution for the heat or cold transportation over long distance.This paper presents the importance and the cycle choice for long-distance transportation of low-grade thermal energy, and the thermodynamic and hydrodynamic feasibility of single-effect ammonia-water absorption system for heat or cold transportation over long distance are also involved. A model of a long-distance thermal energy transportation system is built and analyzed, which shows satisfactory and attractive results. When a steam heat source at 120℃ is available, the user site can get hot water output at about 55℃ with the thermal COP of about 0.6 and the electric COP of about 100 in winter, and cold water output at about 10℃ with the thermal COP of about 0.5 and the electric COP of 50 in summer. A small-size prototype is built to verify the performance analysis. Basically the experimental data show good accordance with the analysis results. The ammonia-water absorption system is a potential pro- spective solution for the heat or cold transportation over long distance.

关 键 词：氨水吸收式 低品位热能 远距离 交通 长途运输 吸收系统 流体力学 运输系统 

分 类 号：TB651[一般工业技术—制冷工程] TB616