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Research Papers

Space Radiator Optimization for Single-Phase Mechanical Pumped Fluid Loop

[+] Author and Article Information
Prashant Kumar Rai

Thermal System Group,
ISRO Satellite,
Bangalore, Karnataka 560017, India
e-mail: prash.8811.ism@gmail.com

Simhachala Rao Chikkala

Thermal System Group,
ISAC-ISRO,
Bangalore, Karnataka 560017, India
e-mail: simhach@isac.gov.in

Abhijit A. Adoni

Thermal System Group,
ISAC-ISRO,
Bangalore, Karnataka 560017, India
e-mail: abhijit@isac.gov.in

Dinesh Kumar

Thermal System Group,
ISAC-ISRO,
Bangalore, Karnataka 560017, India
e-mail: dkumar@isac.gov.in

1Corresponding author.

Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS. Manuscript received April 30, 2014; final manuscript received August 20, 2015; published online October 6, 2015. Assoc. Editor: Chakravarthy Balaji.

J. Thermal Sci. Eng. Appl 7(4), 041021 (Oct 06, 2015) (7 pages) Paper No: TSEA-14-1109; doi: 10.1115/1.4031539 History: Received April 30, 2014; Revised August 20, 2015

Advances in the design and development of communication spacecraft are associated with an increase in power consumption and heat dissipation in the spacecraft. As a consequence, advanced thermal control technologies like mechanical pumped fluid loop (MPFL) are increasingly being considered for spacecraft temperature management. These technologies generally use radiative sinks (often deployable) to reject heat. Since mass is a critical parameter in space applications, mass-optimized radiator design is paramount. This paper presents semi-analytical approach to evolve design of a mass-optimized space radiator panel for single-phase MPFL.

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Figures

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Fig. 1

Schematic of single-phase pumped fluid loop

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Fig. 6

Three-dimensional plot of radiator temperature for optimum dimensions: (a) Ns=2 and (b) Ns=1

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Fig. 7

Profile of fluid bulk temperature and tube wall temperature along tube length (0<z<LR,opt): (a) Ns=2, (b) Ns=1

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Fig. 3

Energy balance in the radiator

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Fig. 2

Schematic of radiator panel (a) front view, (b) top view, and (c) one tube with its flat fin panel

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Fig. 4

Variation of radiator length (LR) with profile length (Lp): (a) Ns=2 and (b) Ns=1

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Fig. 5

Variation of total mass (Mtot) with profile length (Lp): (a) Ns=2 and (b) Ns=1

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