Performance and Control of a Pulse Thermal Loop Heat Transport System

Autor:	Michael J. Brooks, S. A. Sherif, Essam E. Khalil, Sven du Clou, William E. Lear
Rok vydání:	2015
Předmět:	Fluid Flow and Transfer Processes Thermal efficiency Materials science Mechanical Engineering Aerospace Engineering Mechanical engineering Heat sink Condensed Matter Physics Refrigerant Heat pipe Heat flux Space and Planetary Science Heat transfer Heat exchanger Condenser (heat transfer)
Zdroj:	Journal of Thermophysics and Heat Transfer. 29:826-834
ISSN:	1533-6808 0887-8722
DOI:	10.2514/1.t4240
Popis:	Thermal management on space vehicles is dominated by passive systems, including materials, coatings, louvers and heat pipes, and active systems, including pumped liquid loops. Recently, the pulse thermal loop was proposed as a novel technology to provide improved heat transfer over passive systems in the moderate to high heat flux range and as a sustainable alternative to active systems, where an electric pump is undesirable. In this work, the performance of an experimental pulse thermal loop with refrigerant R-134a is characterized using a test facility incorporating variable heat input, driving pressure differential, and line lengths. Three automated control schemes are investigated, which provide flexibility in design. The performance of the device is mapped for a range of power levels and compared with data from the literature, highlighting the operating limits. The pulse thermal loop provides effective thermal control for a range of heat loads from 100 to 800 W while maintaining the source temperatur...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::63aaccea24cd175c0d5fcfbefe84980c https://doi.org/10.2514/1.t4240 Zobrazit plný text záznamu