NH3-H2O喷射-吸收复合式燃气热水炉系统研究及分析

doi:10.3976/j.issn.1002-4026.2016.02.009

SHANDONG SCIENCE ›› 2016, Vol. 29 ›› Issue (2): 41-58.doi: 10.3976/j.issn.1002-4026.2016.02.009

• Energy and Power • Previous Articles Next Articles

Research and analysis of an ammonia-water ejectorabsorptioncomposite gas water heater

GUO Yongxian¹,ZHANG Daxing², LIANG Shiqiang¹*

1. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China;
2. School of Electromechanical Engineering, Xidian Univerity, Xi’an 710071, China

Received:2016-01-19 Online:2016-04-20 Published:2016-04-20

Abstract

Abstract:

We construct highly efficient ejectorabsorption composite gas water heater with operating principle of an ejector. We further design its physical and mathematical models with ammoniawater solution as working fluid. We also calculate the proportion of each heat exchanger based on the selection of reasonable matching parameters. Results indicate that high temperature heat exchanger can absorb the maximum gas heat, more than 40% of total transferred heat. However, low temperature heat exchanger can absorb the minimum gas heat, no more than 25% of the total transferred heat. Thermal efficiency of the heater can attain more than 110% in winter, and even more than 120% in summer. High efficiency and energy saving can therefore be practically implemented.

Key words: ejector-absorption system, ejector, ammonia solution, gas water heater

CLC Number:

TK11

GUO Yongxian,ZHANG Daxing, LIANG Shiqiang. Research and analysis of an ammonia-water ejectorabsorptioncomposite gas water heater[J].SHANDONG SCIENCE, 2016, 29(2): 41-58.

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Research and analysis of an ammonia-water ejectorabsorptioncomposite gas water heater

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