Relationship of Lagrangian microscopic energy efficiency of a gas parcel in a thermoacoustic engine to macroscopic one
Source abstract
Abstract
As suggested by much smaller microscopic Carnot efficiency of a transversely oscillating gas-parcel in a thermoacoustic engine than macroscopic Carnot efficiency of the whole stack, the Lagrangian microscopic energy efficiency of a gas parcel is different from the macroscopic energy efficiency of the whole stack. The relationship of the former to the latter is theoretically discussed. Furthermore, it is numerically shown that the microscopic energy efficiency in a wet stack is considerably lower than that in a dry stack due to both heat loss by latent heat of water evaporation and more heat influx associated with evaporation.
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Research context
OpenAlex topics: Advanced Thermodynamic Systems and Engines · Advanced Thermodynamics and Statistical Mechanics · Thermodynamic and Exergetic Analyses of Power and Cooling Systems
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
National Institute of Advanced Industrial Science and Technology (AIST) , 2266-98 Anagahora, Shimoshidami, Moriyama-ku, Nagoya 463-8560, Japan
Funding
The Japan Science and Technology Agency
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Show source-provided references
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