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γ型斯特林热机无益容积比的影响分析
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作者 曲家闯 许国太 +1 位作者 张学林 张安 《真空与低温》 2018年第6期393-397,共5页
斯特林热机是一种外部加热的闭式循环的热气机,具有效率高、热量来源广、噪声低等优点。斯特林热机根据基本构型不同,可分为α型、β型、γ型三种类型。针对γ型斯特林热气机建立等温模型及加热器、冷却器计算模型,分析了加热器无益容... 斯特林热机是一种外部加热的闭式循环的热气机,具有效率高、热量来源广、噪声低等优点。斯特林热机根据基本构型不同,可分为α型、β型、γ型三种类型。针对γ型斯特林热气机建立等温模型及加热器、冷却器计算模型,分析了加热器无益容积比、冷却器无益容积比等参数对系统的输出功率、相对卡诺循环效率等的影响关系。 展开更多
关键词 斯特林热气机 无益容积比 γ型 等温模型
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Development and Test of Combustion Chamber for Stirling Engine Heated by Natural Gas 被引量:1
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作者 LI Tie SONG Xiange +3 位作者 GUI Xiaohong TANG Dawei LI Zhigang CAO Wenyu 《Journal of Thermal Science》 SCIE EI CAS CSCD 2014年第2期196-201,共6页
The combustion chamber is an important component for the Stifling engine heated by natural gas. In the paper, we develop a combustion chamber for the Stifling engine which aims to generate 3-5 kWe electric power. The ... The combustion chamber is an important component for the Stifling engine heated by natural gas. In the paper, we develop a combustion chamber for the Stifling engine which aims to generate 3-5 kWe electric power. The combustion chamber includes three main components: combustion module, heat exchange cavity and thermal head. Its feature is that the structure can divide "combustion" process and "heat transfer" process into two appar- ent individual steps and make them happen one by one. Since natural gas can mix with air fully before burning, the combustion process can be easily completed without the second wind. The flame can avoid contacting the thermal head of Stifling engine, and the temperature fields can be easily controlled. The designed combustion chamber is manufactured and its performance is tested by an experiment which includes two steps. The experi- mental result of the first step proves that the mixture of air and natural gas can be easily ignited and the flame burns stably. In the second step of experiment, the combustion heat flux can reach 20 kW, and the energy utiliza- tion efficiency of thermal head has exceeded 0.5. These test results show that the thermal performance of com- bustion chamber has reached the design goal, The designed combustion chamber can be applied to a real Stifling engine heated by natural gas which is to generate 3-5 kWe electric power. 展开更多
关键词 Combustion Chamber Natural Gas Stirling Engine DESIGNING Performance Test
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