Technoeconomic optimization of superalloy supercritical CO2 microtube shell-and-tube-heat exchangers
Journal Article
·
· Applied Thermal Engineering
- Univ. of California, Los Angeles, CA (United States); OSTI
- Univ. of California, Los Angeles, CA (United States)
Heat exchangers are critical components of aerospace systems and improve efficiency of operation by providing waste heat recovery. Supercritical CO has emerged as a promising candidate working fluid due to its potential in increasing the power density of heat exchangers. In this paper, a generalized costing model is developed to estimate the capital costs incurred to manufacture microtube shell-and-tube heat exchangers. This model is utilized in conjunction with an accurate and efficient 2D numerical shell-and-tube heat exchanger performance prediction model to conduct optimization studies with two key objectives – minimization of cost and maximization of heat exchanger power density – on supercritical CO microtube heat exchangers utilizing superalloy Haynes 282 as the solid material. A methodology is then demonstrated to optimize these heat exchangers using Particle Swarm Optimization for aerospace applications and highly compact and cost-effective optimal designs with power density around 20 and cost per conductance less than 5 $ ∙ K/W are obtained.
- Research Organization:
- Univ. of California, Los Angeles, CA (United States)
- Sponsoring Organization:
- USDOE Advanced Research Projects Agency - Energy (ARPA-E)
- Grant/Contract Number:
- AR0001131
- OSTI ID:
- 2422316
- Journal Information:
- Applied Thermal Engineering, Journal Name: Applied Thermal Engineering Journal Issue: C Vol. 220; ISSN 1359-4311
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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