Experimental and numerical study on heat transfer and pressure drop performance of Cross-Wavy primary surface channel
(2016) In Energy Conversion and Management 125. p.80-90- Abstract
The Cross-Wavy primary surface heat exchanger is one of the most promising candidates for microturbine recuperators. In this paper, naphthalene sublimation experiments are performed for Cross-Wavy channels in a wind tunnel. The experimental results indicate that the entrance region has a small effect on the unit-averaged heat transfer coefficient of whole Cross-Wavy channels. Correlations of Nusselt number and friction factor in the Cross-Wavy channel are obtained. However, only the Cross-Wavy channel with a large equivalent diameter is tested because the actual Cross-Wavy channels are very complicated and small. Therefore, based on the similarity rules, five Cross-Wavy channels with similar structures but different equivalent diameters... (More)
The Cross-Wavy primary surface heat exchanger is one of the most promising candidates for microturbine recuperators. In this paper, naphthalene sublimation experiments are performed for Cross-Wavy channels in a wind tunnel. The experimental results indicate that the entrance region has a small effect on the unit-averaged heat transfer coefficient of whole Cross-Wavy channels. Correlations of Nusselt number and friction factor in the Cross-Wavy channel are obtained. However, only the Cross-Wavy channel with a large equivalent diameter is tested because the actual Cross-Wavy channels are very complicated and small. Therefore, based on the similarity rules, five Cross-Wavy channels with similar structures but different equivalent diameters are further investigated by numerical simulations. The numerical results indicate that the Cross-Wavy channels with similar structures but different equivalent diameters have similar thermal-hydraulic performance in the studied Reynolds number range.
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- author
- Ma, Ting ; Du, Lin xiu ; Sun, Ning ; Zeng, Min LU ; Sundén, Bengt LU and Wang, Qiu wang
- organization
- publishing date
- 2016-10-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Cross-Wavy channel, Heat transfer, Naphthalene sublimation technique, Pressure drop, Similarity
- in
- Energy Conversion and Management
- volume
- 125
- pages
- 11 pages
- publisher
- Elsevier
- external identifiers
-
- wos:000384860500008
- scopus:84979699165
- ISSN
- 0196-8904
- DOI
- 10.1016/j.enconman.2016.06.055
- language
- English
- LU publication?
- yes
- id
- 4c5b2102-8987-4c80-865f-ae1ffc3011c9
- date added to LUP
- 2016-10-21 12:54:54
- date last changed
- 2024-04-19 12:00:37
@article{4c5b2102-8987-4c80-865f-ae1ffc3011c9,
abstract = {{<p>The Cross-Wavy primary surface heat exchanger is one of the most promising candidates for microturbine recuperators. In this paper, naphthalene sublimation experiments are performed for Cross-Wavy channels in a wind tunnel. The experimental results indicate that the entrance region has a small effect on the unit-averaged heat transfer coefficient of whole Cross-Wavy channels. Correlations of Nusselt number and friction factor in the Cross-Wavy channel are obtained. However, only the Cross-Wavy channel with a large equivalent diameter is tested because the actual Cross-Wavy channels are very complicated and small. Therefore, based on the similarity rules, five Cross-Wavy channels with similar structures but different equivalent diameters are further investigated by numerical simulations. The numerical results indicate that the Cross-Wavy channels with similar structures but different equivalent diameters have similar thermal-hydraulic performance in the studied Reynolds number range.</p>}},
author = {{Ma, Ting and Du, Lin xiu and Sun, Ning and Zeng, Min and Sundén, Bengt and Wang, Qiu wang}},
issn = {{0196-8904}},
keywords = {{Cross-Wavy channel; Heat transfer; Naphthalene sublimation technique; Pressure drop; Similarity}},
language = {{eng}},
month = {{10}},
pages = {{80--90}},
publisher = {{Elsevier}},
series = {{Energy Conversion and Management}},
title = {{Experimental and numerical study on heat transfer and pressure drop performance of Cross-Wavy primary surface channel}},
url = {{http://dx.doi.org/10.1016/j.enconman.2016.06.055}},
doi = {{10.1016/j.enconman.2016.06.055}},
volume = {{125}},
year = {{2016}},
}