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Abstract
The economics of an ORC system is strictly linked to thermodynamic properties of the working fluid. A bad choice of working fluid could lead to a less efficient and expensive plant/generation unit. Some selection criteria have been put forward by various authors, incorporating thermodynamic properties, provided in literature but these do not have a general character. In the paper a simple analysis has been carried out which resulted in development of thermodynamic criteria for selection of an appropriate working fluid for subcritical and supercritical cycles. The postulated criteria are expressed in terms of non-dimensional numbers, which are characteristic for different fluids. The efficiency of the cycle is in a close relation to these numbers. The criteria are suitable for initial fluid selection. Such criteria should be used with other ones related to environmental impact, economy, system size, etc. Examples of such criteria have been also presented which may be helpful in rating of heat exchangers, which takes into account both heat transfer and flow resistance of the working fluid.
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Authors (2)
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Jarosław Mikielewicz prrof. dr hab. inż.
- Instytut Maszyn Przepływowych PAN
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1515/cpe-2016-0035
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
Chemical and Process Engineering-Inżynieria Chemiczna i Procesowa
no. 37,
edition 3,
pages 429 - 440,
ISSN: 0208-6425 - Language:
- English
- Publication year:
- 2016
- Bibliographic description:
- Mikielewicz D., Mikielewicz J.: Criteria for selection of working fluid in low-temperature ORC// Chemical and Process Engineering-Inżynieria Chemiczna i Procesowa. -Vol. 37, iss. 3 (2016), s.429-440
- DOI:
- Digital Object Identifier (open in new tab) 10.1515/cpe-2016-0035
- Verified by:
- Gdańsk University of Technology
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