Performance of plate heat exchangers for evaporation of ammonia
(2006) In Heat Transfer Engineering 27(5). p.45-55- Abstract
- Measurements on a semi-welded plate heat exchanger (PHE) and on various versions of the nickel-brazed PHE were performed in a large experimental refrigeration rig. Experiments were carried out with the refrigerant ammonia, which was completely evaporated in vertical upward flow in PHEs connected in a U-type manner. A multiple linear regression analysis produced three Nusselt number correlations for the different PHEs that can predict the measured Nusselt number decently. The values for the C-coefficient ( in the correlation of the two-phase multiplier) for the higher Reynolds number are somewhat higher than those reported in other investigations. An inlet flow distributor in the semi-welded heat exchanger made it possible to achieve a... (More)
- Measurements on a semi-welded plate heat exchanger (PHE) and on various versions of the nickel-brazed PHE were performed in a large experimental refrigeration rig. Experiments were carried out with the refrigerant ammonia, which was completely evaporated in vertical upward flow in PHEs connected in a U-type manner. A multiple linear regression analysis produced three Nusselt number correlations for the different PHEs that can predict the measured Nusselt number decently. The values for the C-coefficient ( in the correlation of the two-phase multiplier) for the higher Reynolds number are somewhat higher than those reported in other investigations. An inlet flow distributor in the semi-welded heat exchanger made it possible to achieve a higher performance at low Delta T-out. The nickel-brazed heat exchanger with an integrated inlet flow distributor was found to have a better performance compared to a nickel-brazed heat exchanger without the flow distributor. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/415193
- author
- Sterner, Dirk LU and Sundén, Bengt LU
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Heat Transfer Engineering
- volume
- 27
- issue
- 5
- pages
- 45 - 55
- publisher
- Taylor & Francis
- external identifiers
-
- wos:000236239600005
- scopus:33645219325
- ISSN
- 1521-0537
- DOI
- 10.1080/01457630600559611
- language
- English
- LU publication?
- yes
- id
- ede40763-fde5-4fd4-93a8-29d12b2564e2 (old id 415193)
- date added to LUP
- 2016-04-01 12:08:48
- date last changed
- 2022-04-21 03:09:32
@article{ede40763-fde5-4fd4-93a8-29d12b2564e2,
abstract = {{Measurements on a semi-welded plate heat exchanger (PHE) and on various versions of the nickel-brazed PHE were performed in a large experimental refrigeration rig. Experiments were carried out with the refrigerant ammonia, which was completely evaporated in vertical upward flow in PHEs connected in a U-type manner. A multiple linear regression analysis produced three Nusselt number correlations for the different PHEs that can predict the measured Nusselt number decently. The values for the C-coefficient ( in the correlation of the two-phase multiplier) for the higher Reynolds number are somewhat higher than those reported in other investigations. An inlet flow distributor in the semi-welded heat exchanger made it possible to achieve a higher performance at low Delta T-out. The nickel-brazed heat exchanger with an integrated inlet flow distributor was found to have a better performance compared to a nickel-brazed heat exchanger without the flow distributor.}},
author = {{Sterner, Dirk and Sundén, Bengt}},
issn = {{1521-0537}},
language = {{eng}},
number = {{5}},
pages = {{45--55}},
publisher = {{Taylor & Francis}},
series = {{Heat Transfer Engineering}},
title = {{Performance of plate heat exchangers for evaporation of ammonia}},
url = {{http://dx.doi.org/10.1080/01457630600559611}},
doi = {{10.1080/01457630600559611}},
volume = {{27}},
year = {{2006}},
}