Optimum absorber temperature of a once-reflecting full conical concentrator of a low temperature differential Stirling engine

被引：45

作者：

Kongtragool, B ^{[1
]}

Wongwises, S ^{[1
]}

机构：

[1] King Mongkuts Univ Technol, Dept Engn Mech, Fluid Mech Thermal Engn & Multiphase Flow Res Lab, FUTURE, Bangkok 10140, Thailand

来源：

RENEWABLE ENERGY | 2005年 / 30卷 / 11期

关键词：

Stirling engine; solar-powered heat engine; conical concentrator;

D O I：

10.1016/j.renene.2005.01.003

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This paper provides a theoretical investigation on the optimum absorber temperature of a once-reflecting full conical concentrator for maximizing overall efficiency of a solar-powered low temperature differential Stirling engine. A mathematical model for the overall efficiency of the solar-powered Stirling engine is developed. The optimum absorber temperature for maximum overall efficiency for both limiting conditions of maximum possible engine efficiency and maximum possible engine power output is determined. The results indicated that the optimum absorber temperatures calculated from these two limiting cases are not significantly different. For a given concentrated solar intensity, the maximum overall efficiency characterized by the condition of maximum possible engine power output is very close to that of the real engine of 55% Carnot efficiency, approximately. (c) 2005 Published by Elsevier Ltd.

引用

页码：1671 / 1687

页数：17

共 17 条

[1]

BRINKWORTH BJ, 1974, SOLAR ENERGY MAN, P75

[2]

Chen TP, 1996, CHINESE ANN MATH B, V17, P73

[3] EFFICIENCY OF A CARNOT ENGINE AT MAXIMUM POWER OUTPUT [J].

CURZON, FL ;

AHLBORN, B .

AMERICAN JOURNAL OF PHYSICS, 1975, 43 (01) :22-24

[4]

DANIELS F, 1964, DIRECT USE SUNS ENER, P260

[5] OPTIMUM OUTLET TEMPERATURE OF SOLAR COLLECTOR FOR MAXIMUM WORK OUTPUT FOR AN OTTO AIR-STANDARD CYCLE WITH IDEAL REGENERATION [J].

ELDIGHIDY, SM .

SOLAR ENERGY, 1993, 51 (03) :175-182

[6] ON OPTIMIZED SOLAR-DRIVEN HEAT ENGINES [J].

GORDON, JM .

SOLAR ENERGY, 1988, 40 (05) :457-461

[7] OPTIMUM SOLAR COLLECTOR OPERATION FOR MAXIMIZING CYCLE WORK OUTPUT [J].

HOWELL, JR ;

BANNEROT, RB .

SOLAR ENERGY, 1977, 19 (02) :149-153

[8] Investigation on power output of the gamma-configuration low temperature differential Stirling engines [J].

Kongtragool, B ;

Wongwises, S .

RENEWABLE ENERGY, 2005, 30 (03) :465-476

[9] A review of solar-powered Stirling engines and low temperature differential Stirling engines [J].

Kongtragool, B ;

Wongwises, S .

RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2003, 7 (02) :131-154

[10]

KONGTRAGOOL B, 2003, P 2 INT C HEAT TRANS

← 1 2 →