Effect of leakage losses on the performance of a β type Stirling engine

被引：16

作者：

Mabrouk, M. T. ^{[1
]}

Kheiri, A. ^{[1
]}

Feidt, M. ^{[1
]}

机构：

[1] Univ Lorraine, Lab Energet & Theoret & Appl Mech, F-54504 Vandoeuvre Les Nancy, France

来源：

ENERGY | 2015年 / 88卷

关键词：

Leakage losses; Stirling engine; Dynamic thermal model; THERMAL EFFICIENCY; NUMERICAL-MODEL; HEAT ENGINE; OPTIMIZATION;

D O I：

10.1016/j.energy.2015.05.075

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In Stirling engines designed for continuous work conditions, clearance seals are usually used to avoid excessive wear and hence to extend the service life. This causes a gas leakage between the compression space and the expansion space through the displacer's clearance and also a gas leakage between the compression space and the bounce space through the power piston's clearance. In this study, we propose an unsteady analytical model to calculate the gas leakage mass flow rate by considering an oscillating flow in the annular clearance and to evaluate the power lost in both locations. Finally, the sensitivity to some relevant parameters is discussed. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：111 / 117

页数：7

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