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Cryogenic heat engine

 

作者: C. A. Ordonez,  

 

期刊: American Journal of Physics  （AIP Available online 1996）
卷期: Volume 64, issue 4  

页码: 479-481

 

ISSN:0002-9505

 

年代: 1996

 

DOI:10.1119/1.18195

 

出版商: American Association of Physics Teachers

 

关键词: CRYOGENICS;EDUCATIONAL TOOLS;ELECTRIC BATTERIES;HEAT ENGINES;LIQUEFIED GASES;NITROGEN;THERMODYNAMIC CYCLES;WORKING FLUIDS;01.50.M;05.70

 

数据来源: AIP

 

摘要:

A classroom demonstration is described which illustrates how a cryogenic fluid, liquid nitrogen, can be used to run an open‐cycle engine and do work. A brief analysis on the utility of liquid nitrogen for doing work shows some surprising results in comparison with lead/acid batteries. The specific energy (the work per unit mass) is found to be higher for liquid nitrogen while the energy cost is found to be about an order of magnitude lower.

 

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