Computational design of microvascular radiative cooling panels for nanosatellites

Marcus Hwai Yik Tan, Devin Bunce, Alexander Robin Mercantini Ghosh, Philippe H Geubelle

Research output: Contribution to journalArticle

Abstract

This novel application of microvascular panels as nanosatellite radiator panels involves the key challenge of satisfying design constraints involving the coolant temperatures and pressure drop across the microchannel network. To address this challenge, the radiator panels are represented by dimensionally reduced hydraulic and nonlinear thermal models. The interface-enriched generalized finite element method and the Newton-Raphson scheme are then combined to solve the resulting nonlinear equations. Next, an interface-enriched generalized finite element methodbased sensitivity analysis of the nonlinear equations is developed and combined with an existing sequential quadratic programming algorithm to solve an optimization problem specifically formulated to optimize the thermal performance of the radiator. The resulting thermal performance of the optimized designs is not only superior to that of the reference designs but is also in excellent agreement with an analytical model derived based on the assumption of near-monotonic variation in the coolant temperature along the microchannel network. A feasibility study on a reference design and an optimized design shows that only the latter can satisfy all design constraints with appropriately chosen flow rates. Solutions of the thermal and hydraulic models are also verified with ANSYS FLUENT simulations.

Original languageEnglish (US)
Pages (from-to)605-616
Number of pages12
JournalJournal of Thermophysics and Heat Transfer
Volume32
Issue number3
DOIs
StatePublished - Jan 1 2018

Fingerprint

nanosatellites
cooling
radiators
coolants
microchannels
hydraulics
nonlinear equations
quadratic programming
sensitivity analysis
pressure drop
newton
finite element method
flow velocity
optimization
temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Computational design of microvascular radiative cooling panels for nanosatellites. / Tan, Marcus Hwai Yik; Bunce, Devin; Ghosh, Alexander Robin Mercantini; Geubelle, Philippe H.

In: Journal of Thermophysics and Heat Transfer, Vol. 32, No. 3, 01.01.2018, p. 605-616.

Research output: Contribution to journalArticle

@article{4fdf7c266b0c4bd790cb4fa621364def,
title = "Computational design of microvascular radiative cooling panels for nanosatellites",
abstract = "This novel application of microvascular panels as nanosatellite radiator panels involves the key challenge of satisfying design constraints involving the coolant temperatures and pressure drop across the microchannel network. To address this challenge, the radiator panels are represented by dimensionally reduced hydraulic and nonlinear thermal models. The interface-enriched generalized finite element method and the Newton-Raphson scheme are then combined to solve the resulting nonlinear equations. Next, an interface-enriched generalized finite element methodbased sensitivity analysis of the nonlinear equations is developed and combined with an existing sequential quadratic programming algorithm to solve an optimization problem specifically formulated to optimize the thermal performance of the radiator. The resulting thermal performance of the optimized designs is not only superior to that of the reference designs but is also in excellent agreement with an analytical model derived based on the assumption of near-monotonic variation in the coolant temperature along the microchannel network. A feasibility study on a reference design and an optimized design shows that only the latter can satisfy all design constraints with appropriately chosen flow rates. Solutions of the thermal and hydraulic models are also verified with ANSYS FLUENT simulations.",
author = "Tan, {Marcus Hwai Yik} and Devin Bunce and Ghosh, {Alexander Robin Mercantini} and Geubelle, {Philippe H}",
year = "2018",
month = "1",
day = "1",
doi = "10.2514/1.T5381",
language = "English (US)",
volume = "32",
pages = "605--616",
journal = "Journal of Thermophysics and Heat Transfer",
issn = "0887-8722",
publisher = "American Institute of Aeronautics and Astronautics Inc. (AIAA)",
number = "3",

}

TY - JOUR

T1 - Computational design of microvascular radiative cooling panels for nanosatellites

AU - Tan, Marcus Hwai Yik

AU - Bunce, Devin

AU - Ghosh, Alexander Robin Mercantini

AU - Geubelle, Philippe H

PY - 2018/1/1

Y1 - 2018/1/1

N2 - This novel application of microvascular panels as nanosatellite radiator panels involves the key challenge of satisfying design constraints involving the coolant temperatures and pressure drop across the microchannel network. To address this challenge, the radiator panels are represented by dimensionally reduced hydraulic and nonlinear thermal models. The interface-enriched generalized finite element method and the Newton-Raphson scheme are then combined to solve the resulting nonlinear equations. Next, an interface-enriched generalized finite element methodbased sensitivity analysis of the nonlinear equations is developed and combined with an existing sequential quadratic programming algorithm to solve an optimization problem specifically formulated to optimize the thermal performance of the radiator. The resulting thermal performance of the optimized designs is not only superior to that of the reference designs but is also in excellent agreement with an analytical model derived based on the assumption of near-monotonic variation in the coolant temperature along the microchannel network. A feasibility study on a reference design and an optimized design shows that only the latter can satisfy all design constraints with appropriately chosen flow rates. Solutions of the thermal and hydraulic models are also verified with ANSYS FLUENT simulations.

AB - This novel application of microvascular panels as nanosatellite radiator panels involves the key challenge of satisfying design constraints involving the coolant temperatures and pressure drop across the microchannel network. To address this challenge, the radiator panels are represented by dimensionally reduced hydraulic and nonlinear thermal models. The interface-enriched generalized finite element method and the Newton-Raphson scheme are then combined to solve the resulting nonlinear equations. Next, an interface-enriched generalized finite element methodbased sensitivity analysis of the nonlinear equations is developed and combined with an existing sequential quadratic programming algorithm to solve an optimization problem specifically formulated to optimize the thermal performance of the radiator. The resulting thermal performance of the optimized designs is not only superior to that of the reference designs but is also in excellent agreement with an analytical model derived based on the assumption of near-monotonic variation in the coolant temperature along the microchannel network. A feasibility study on a reference design and an optimized design shows that only the latter can satisfy all design constraints with appropriately chosen flow rates. Solutions of the thermal and hydraulic models are also verified with ANSYS FLUENT simulations.

UR - http://www.scopus.com/inward/record.url?scp=85049130367&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85049130367&partnerID=8YFLogxK

U2 - 10.2514/1.T5381

DO - 10.2514/1.T5381

M3 - Article

AN - SCOPUS:85049130367

VL - 32

SP - 605

EP - 616

JO - Journal of Thermophysics and Heat Transfer

JF - Journal of Thermophysics and Heat Transfer

SN - 0887-8722

IS - 3

ER -