Finite-time optimizations of a heat engine
| Autor: | Seung H Won, Sang Soo Kim, Won Y. Lee |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Engineering
Thermal efficiency Stirling engine Maximum power principle Combined cycle business.industry Mechanical Engineering Nuclear engineering Building and Construction Pollution Industrial and Manufacturing Engineering law.invention Heat capacity rate symbols.namesake General Energy Control theory law symbols Internal combustion engine cooling Electrical and Electronic Engineering business Carnot heat engine Civil and Structural Engineering Heat engine |
| Zdroj: | Energy. 15:979-985 |
| ISSN: | 0360-5442 |
| DOI: | 10.1016/0360-5442(90)90023-u |
| Popis: | We study the power and efficiency of a finite-time heat engine. We consider an endoreversible Carnot heat engine coupled to heating and cooling fluids and determine the maximum power output and efficiency to obtain a bound on the power-conversion systems. While the maximum power and the operating temperatures of the heat engine are functions of the heat-reservoir temperatures, heat-reservoir capacity rates and heat-transfer rates, the efficiency at maximum power depends primarily on the initial temperatures of the heating and cooling fluids. The efficiency at maximum power provides a measure of the power available in a practical heat engine. |
| Databáze: | OpenAIRE |
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