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This content will become publicly available on March 20, 2019

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

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:
Grant/Contract Number:
AR0000473
Type:
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
Research Org:
Univ. of San Diego, San Diego, CA (United States)
Sponsoring Org:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; FLUENT; Computational Fluid Dynamics; heat exchanger; dimpleplate; Experiment validation; Reynolds number
OSTI Identifier:
1435628