OPTIMAL CHOICE OF THE PERFORMANCE PARAMETERS OF AN ABSORPTION HEAT TRANSFORMER

被引：37

作者：

CHEN, JC

机构：

[1] Department of Physics, Xiamen University, Xiamen

来源：

HEAT RECOVERY SYSTEMS & CHP | 1995年 / 15卷 / 03期

关键词：

D O I：

10.1016/0890-4332(95)90009-8

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The optimal performance of an absorption heat transformer, i.e. a type II absorption heat pump, is investigated by using the cyclic model with continuous flow. The effect of thermal resistances between the heat transformer and the heat reservoirs is considered in the model. A general expression related to the rate of heat-pumping, the coefficient of performance and the overall heat transfer area of the heat transformer is derived. The expression is used to optimise the main performance parameters of the heat transformer. The maximum rate of heat-pumping and the corresponding coefficient of performance are calculated. For a given overall heat transfer area of the heat transformer, the optimal relation of the heat transfer areas of the heat exchangers is obtained. The problems concerning the optimal choices of other performance parameters are discussed. The results obtained here can not only enrich the theory of finite time thermodynamics, but also provide some new theoretical bases for the optimal design and operation of real absorption heat transformers.

引用

页码：249 / 256

页数：8

共 20 条

[1]

Lazzarin, Longo, Piccininni, An open cycle absorption heat pump, Heat Recovery Systems & CHP, 12, 5, pp. 391-396, (1992)

[2]

Kern, A two-siage absorption heat pump for heating and cooling, Newslett. IEA Heat Pump Center, 7, 3, pp. 22-23, (1989)

[3]

Ziegler, Riesch, Absorption cycle. A review with regard to energetic efficiency, Heat Recovery Systems & CHP, 13, 2, pp. 147-159, (1993)

[4]

Eames, Aphornratana, Research on heat-operated heat pumps and refrigerators, J. Institute of Energy, 66, pp. 29-39, (1993)

[5]

George, Murthy, Experiments on a vapour absorption heat transformer, International Journal of Refrigeration, 16, pp. 107-119, (1993)

[6]

Ikeuchi, Yumikawa, Ozaki, Yamanaka, Design and performance of a high-temperature-boost absorption heat pump, ASHRAE Trans., 91, 2, pp. 2081-2094, (1985)

[7]

Iyoki, Uemura, Performance characteristics of the water-lithium bromide-zinc chloride-calcium bromide absorption refrigerating machine, absorption heat pump and absorption heat transformer, Int. J. Refrig., 13, pp. 191-196, (1990)

[8]

Abrahamsson, Jernqvist, Carnot comparison of multi-temperature level absorption heat cycles, Int. J. Refrig., 16, pp. 240-246, (1993)

[9]

Huang, Engineering Thermodynamics, (1976)

[10]

Curzon, Ahlborn, Efficiency of a Carnot engine at maximum power output, American Journal of Physics, 43, pp. 22-24, (1975)

← 1 2 →