Understanding the exergy of cold: theory and practical examples

Title

Understanding the exergy of cold: theory and practical examples

 Author

Jansen, S.C. (TU Delft Building Services)
Woudstra, N. (TU Delft Energy Technology)

Date

2010

 Abstract

Exergy analysis is used to evaluate the thermodynamic performance of processes, including energy conversion and supply systems. This often involves the calculation of the exergy of heat, at a temperature either above or below the environmental temperature (T0). The exergy of ‘cold’, i.e., heat at T < T0, is less used and therefore sometimes also less understood. This paper broadens the understanding of the exergy of cold by discussing the theory and giving two useful examples illustrating the added value of exergy when considering cold: The regasification of Liquefied Natural Gas (LNG) and the exergy demand of cooling in buildings.

 Subject

exergy
exergy of cold
second law efficiency

 To reference this document use:

http://resolver.tudelft.nl/uuid:581ad16a-3191-4434-84d7-01573ad5fb97

 ISSN

1742-8297

 Source

International Journal of Exergy, 7 (6), 693

 Part of collection

Institutional Repository

 Document type

journal article

 Rights

© 2010 S.C. Jansen, N. Woudstra
Files
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