Technique for Using the Indicative Library of Characteristic Fields in the Design of Low-Temperature Power Plants with Low-Grade Heat Utilization

A technique for using an indicative library of characteristic fields in the design of low-temperature power plants with the utilization of low-grade heat of liquefied natural gas has been proposed. A classification of low-temperature power plants with low-grade heat utilization has been made accordi...

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Bibliographic Details
Published in:Chemical and petroleum engineering 2022-03, Vol.57 (11-12), p.930-939
Main Authors: Dovgyallo, A. I., Uglanov, D. A., Blagin, E. V., Arkharov, I. A.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Comparative analysis
Cryogenic Equipment
Efficiency
Electric power-plants
Exergy
Geotechnical Engineering & Applied Earth Sciences
Heat
Industrial Chemistry/Chemical Engineering
Industrial Pollution Prevention
Libraries
Liquefied natural gas
Low temperature
Mathematical analysis
Methods
Mineral Resources
Power plants
Production and Application of Industrial Gases. Vacuum Technology
Thermodynamics
Utilization
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Summary:A technique for using an indicative library of characteristic fields in the design of low-temperature power plants with the utilization of low-grade heat of liquefied natural gas has been proposed. A classification of low-temperature power plants with low-grade heat utilization has been made according to the types of heat source and the thermodynamic cycle used. For a comparative analysis of the plants, the Carnot and Novikov efficiency criteria, thermal and exergy efficiency, specific work per kilogram of liquefied natural gas, as well as the newly proposed calculated effective efficiency have been used. The results of the analysis are presented in the form of characteristic fields, which can be used to significantly increase the accuracy of calculations and reduce the time for design and refinement of the low-temperature power plant being created (the values of efficiency and specific work are refined by 30-50% compared to the pre-design estimate according to Novikov). The proposed technique for using the library of characteristic fields in the methodological complex of calculation and design of low-temperature power plants allows significantly reducing the development time and bringing the calculated characteristics of the designed power plant as close as possible to the real ones.
ISSN:0009-2355
1573-8329
DOI:10.1007/s10556-022-01028-w