NDLI: Micro / nano spacecraft thermal control using a MEMS-based pumped liquid cooling system

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Micro / nano spacecraft thermal control using a MEMS-based pumped liquid cooling system

Content Provider	Semantic Scholar
Author	Birur, Gajanana C. Sur, Tricia Waniewski Shakkottai, Partha Green, Amanda A. Haapanen, Siina I.
Abstract	The thermal control of future micro/nano spacecraft will be challenging due to power densities which are expected to exceed 25 W/cm. Advanced thermal control concepts and technologies are essential to keep their payload within allowable temperature limits and also to provide accurate temperature control required by the science instruments and engineering equipment on board. To this end, a MEMS-based pumped liquid cooling system is being investigated at the Jet Propulsion Laboratory (JPL). The mechanically pumped cooling system consists of a working fluid circulated through microchannels by a micropump. Microchannel heat exchangers have been designed and fabricated in silicon at JPL and currently are being tested for hydraulic and thermal performance in simulated microspacecraft heat loads using de ionized water as the working fluid. The microchannels are 50 microns deep with widths ranging from 50 to 100 microns. The hydraulic and thermal test data was used for numerical model validation. Optimization studies are being conducted using these numerical models on various microchannel configurations, working fluids, and micropump technologies. This paper presents background on the need for pumped liquid cooling systems for future micro/nano spacecraft and results from this ongoing numerical and experimental investigation.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://alumnus.caltech.edu/~waniewsk/papers/waniewsk4.pdf
Language	English
Access Restriction	Open
Subject Keyword	CNS disorder Computer cooling Computer simulation Cool - action Cooling Module Device Component Design tool GNU nano Heat Exchanger Device Component High-Frequency Jet Ventilation Instrument - device Liquid substance Mathematical model Mathematical optimization Medication Event Monitoring System Microelectromechanical systems Micron Numerical analysis Semiconductor device fabrication Silicon Spacecraft Test data Water cooling density pump (device)
Content Type	Text
Resource Type	Article

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