论文信息 - Loop heat pipe for spacecraft thermal control, part 2 : Ambient condition tests

Loop heat pipe for spacecraft thermal control, part 2 : Ambient condition tests

Detailed results are presented of two ground-based tests carried out in September 1999 under ambient conditions (room temperature air and atmospheric conditions) to determine the thermal characteristics of loop heat pipes (LHP). One test (test 1) was carried out to quantify the effects that heat leaks have on the operational characteristics of the loop. In test 1, at various evaporator primary input power levels, auxiliary heating was applied to simulate heat leaks into the system. The intentional heat inputs representing heat leaks were located at the liquid return line and the compensation chamber. A second test (test 2) was conducted to verify the feasibility of temperature control of the LHP. Test 2 is motivated by the observation that it is desirable to control the temperature of an LHP to set the operating temperature for the system to which the LHP is attached

Portonovo S. Ayyaswamy | Michelle L. Parker | Bruce L. Drolen

[1] J. Ku. Overview of Capillary Pumped Loop Technology , 1993 .

[2] Michelle Lee Parker,et al. Modeling of loop heat pipes with applications to spacecraft thermal control , 2000 .

[3] W. J. Krotiuk. Engineering testing of the capillary pumped loop thermal control system for the NASA EOS-AM spacecraft , 1997, IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203).

[4] Jentung Ku,et al. Operating Characteristics of Loop Heat Pipes , 1999 .

[5] Jentung Ku,et al. Temperature oscillations in loop heat pipe operation , 2001 .

[6] I. V. Yagodkin,et al. Physical principles of heat pipes , 1982 .

[7] Jentung Ku,et al. Thermal Vacuum Testing of a Novel Loop Heat Pipe Design for the Swift BAT Instrument , 2003 .

[8] B. Drolen,et al. Loop Heat Pipe for Spacecraft Thermal Control, Part 1: Vacuum Chamber Tests , 2004 .

[9] Jentung Ku,et al. Loop heat pipes and capillary pumped loops-an applications perspective , 2002 .

[10] E. Winter,et al. The Heat Pipe , 1971 .

[11] Christopher J. Crowley,et al. Propylene loop heat pipe with a lightweight, flexible, deployable radiator , 2002 .

[12] G. P. Peterson,et al. Thermal Control of Electronic Equipment and Devices , 1990 .

[13] David A. Wolf,et al. Loop Heat Pipes - Their Performance and Potential , 1994 .

[14] Jane Baumann,et al. Noncondensible Gas, Mass, and Adverse Tilt Effects on the Start-up of Loop Heat Pipes , 1999 .