A DYNAMIC PERFORMANCE SIMULATION-MODEL OF FLAT-PLATE SOLAR COLLECTORS FOR A HEAT-PUMP SYSTEM

被引：12

作者：

ARINZE, EA ^{[1
]}

SCHOENAU, GJ ^{[1
]}

SOKHANSANJ, S ^{[1
]}

ADEFILA, SS ^{[1
]}

MUMAH, SM ^{[1
]}

机构：

[1] UNIV SASKATCHEWAN,COLL ENGN,SASKATOON S7N 0W0,SASKATCHEWAN,CANADA

来源：

ENERGY CONVERSION AND MANAGEMENT | 1993年 / 34卷 / 01期

关键词：

SIMULATION; EXPERIMENTAL; HEAT PUMP; SOLAR; COLLECTOR; FLAT PLATE;

D O I：

10.1016/0196-8904(93)90006-V

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Flat-plate collectors are inherently exposed to time-varying meteorological and system parameters. Thus, dynamic modeling, rather than the commonly used steady-state models, is a more accurate approach for the design and performance evaluation of flat-plate solar collectors. The dynamic model presented in this study describes the fluid, plate and cover temperatures of the collector by three different differential equations. Taylor series expansion and the Runge-Kutta method are used in the solution of the differential equations. The accuracy of the dynamic model was tested by comparing the results predicted by the model with experimental performance data obtained for a liquid-cooled flat-plate solar collector with a corrugated transparent fiberglass cover. The predicted results by the dynamic model agreed favorably with the measured experimental data for the flat-plate solar collector. Experimentally determined collector temperatures varied by a maximum of +/- 3-degrees-C from values predicted by the model. Various changes in meteorological and system parameters were investigated with the model. The model was further used to design a flat-plate collector (generator) for a 1 kW ammonia-water absorption refrigeration system with an ammonia concentration of 30% by weight and fluid inlet temperature of 30-degrees-C. Measured experimental results and calculated results by the dynamic model show that the linearized model is an effective design and simulation tool. The dynamic effects of collector performance are well handled by the model. The model is a useful tool in parametric evaluation and design of collectors using various fluids and with various configurations for heat pump systems.

引用

页码：33 / 49

页数：17

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