Exergetic analysis of plate heat exchanger in presence of axial dispersion in fluid.
Author(s) : DAS S. K., ROETZEL W.
Type of article: Article
Summary
Study of the effect of axial dispersion which takes the flow maldistribution into consideration. It is found that with unutilized exergy fraction as the figure of demerit the exergetic performance of the heat exchanger can be consistently presented without the "paradox" which has been observed by many investigators. The axial dispersion is found to reduce the exergetic performance and so does the frictional pressure drop of the fluids. This makes it possible to identify a minimum irreversibility corresponding to a given level of dispersion. It has been observed that over a relatively broad zone near the optimum NTU the change in exergy loss is small, providing more flexibility for the designer of the heat exchanger to alleviate the penalty for exergy loss, which is particularly severe in the cryogenic regime.
Details
- Original title: Exergetic analysis of plate heat exchanger in presence of axial dispersion in fluid.
- Record ID : 1996-1531
- Languages: English
- Source: Cryogenics - vol. 35 - n. 1
- Publication date: 1995/01
Links
See other articles in this issue (10)
See the source
Indexing
-
Conjugate numerical investigation of small-scal...
- Author(s) : WAN Z. M., LIU W., NAKAYAMA A.
- Date : 2007/08/21
- Languages : English
- Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Formats : PDF
View record
-
Identification of critical equipment and determ...
- Author(s) : DUTTA R., GHOSH P., CHOWDHURY K.
- Date : 2014/01
- Languages : English
- Source: Cryogenics - vol. 59
View record
-
Exergy maximization in cryogenic regenerators.
- Author(s) : SAHOO R. K., DAS S. K.
- Date : 1994/06
- Languages : English
- Source: Cryogenics - vol. 34 - n. 6
View record
-
Compact cryogenic cooling of liquid media down ...
- Author(s) : JOHANSSON S. Å., LIDÉN F., MORÉN C.
- Date : 2002/04/23
- Languages : English
- Source: Cryogenics 2002. Proceedings of the 7th Cryogenics Conference
- Formats : PDF
View record
-
A high capacity re-entrant groove heat pipe for...
- Author(s) : EDELSTEIN F., KOSSON R.
- Date : 1992
- Languages : English
- Source: Cryogenics - vol. 32 - n. 2
View record