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Title: Experimental and numerical modeling of heat transfer in directed thermoplates

Abstract

We present three-dimensional numerical simulations to quantify the design specifications of a directional thermoplate expanded channel heat exchanger, also called dimpleplate. Parametric thermofluidic simulations were performed independently varying the number of spot welds, the diameter of the spot welds, and the thickness of the fluid channel within the laminar flow regime. Results from computational fluid dynamics simulations show an improvement in heat transfer is achieved under a variety of conditions: when the thermoplate has a relatively large cross-sectional area normal to the flow, a ratio of spot weld spacing to channel length of 0.2, and a ratio of the spot weld diameter with respect to channel width of 0.3. Lastly, experimental results performed to validate the model are also presented.

Authors:
 [1];  [1];  [1]; ORCiD logo [1];  [1]
  1. Univ. of San Diego, San Diego, CA (United States)
Publication Date:
Research Org.:
Univ. of San Diego, San Diego, CA (United States)
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
OSTI Identifier:
1435628
Grant/Contract Number:
AR0000473
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
International Journal of Heat and Mass Transfer
Additional Journal Information:
Journal Volume: 123; Journal Issue: C; Journal ID: ISSN 0017-9310
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; FLUENT; Computational Fluid Dynamics; heat exchanger; dimpleplate; Experiment validation; Reynolds number

Citation Formats

Khalil, Imane, Hayes, Ryan, Pratt, Quinn, Spitler, Christopher, and Codd, Daniel. Experimental and numerical modeling of heat transfer in directed thermoplates. United States: N. p., 2018. Web. doi:10.1016/j.ijheatmasstransfer.2018.02.093.
Khalil, Imane, Hayes, Ryan, Pratt, Quinn, Spitler, Christopher, & Codd, Daniel. Experimental and numerical modeling of heat transfer in directed thermoplates. United States. doi:10.1016/j.ijheatmasstransfer.2018.02.093.
Khalil, Imane, Hayes, Ryan, Pratt, Quinn, Spitler, Christopher, and Codd, Daniel. Tue . "Experimental and numerical modeling of heat transfer in directed thermoplates". United States. doi:10.1016/j.ijheatmasstransfer.2018.02.093.
@article{osti_1435628,
title = {Experimental and numerical modeling of heat transfer in directed thermoplates},
author = {Khalil, Imane and Hayes, Ryan and Pratt, Quinn and Spitler, Christopher and Codd, Daniel},
abstractNote = {We present three-dimensional numerical simulations to quantify the design specifications of a directional thermoplate expanded channel heat exchanger, also called dimpleplate. Parametric thermofluidic simulations were performed independently varying the number of spot welds, the diameter of the spot welds, and the thickness of the fluid channel within the laminar flow regime. Results from computational fluid dynamics simulations show an improvement in heat transfer is achieved under a variety of conditions: when the thermoplate has a relatively large cross-sectional area normal to the flow, a ratio of spot weld spacing to channel length of 0.2, and a ratio of the spot weld diameter with respect to channel width of 0.3. Lastly, experimental results performed to validate the model are also presented.},
doi = {10.1016/j.ijheatmasstransfer.2018.02.093},
journal = {International Journal of Heat and Mass Transfer},
number = C,
volume = 123,
place = {United States},
year = {Tue Mar 20 00:00:00 EDT 2018},
month = {Tue Mar 20 00:00:00 EDT 2018}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on March 20, 2019
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