Process-Structure-Property Relationship of Micro-channel tube for CO2 Climate Control Systems

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Title:	Process-Structure-Property Relationship of Micro-channel tube for CO2 Climate Control Systems
Author:	Gowreesan, Vamadevan
Description:	As the operating conditions of climate control systems become strenuous due to the switching to the CO 2 refrigerant, the mechanical properties of micro channel tubing used for heat transfer become crucial. Because of the processes involved in the manufacturing and assembling of the heat exchangers, the microstructure of the tube changes. Hence the mechanical properties of the tubing are different from that of raw materials. An apparatus to measure mechanical properties of the tubing under simulated working conditions was designed and fabricated. Using the apparatus, the responses of the tubing under static and cyclic loading conditions are analyzed at different temperatures. In addition, the response due to cyclic loading with hold times at maximum and minimum pressures are analyzed. The data are to be used for the designing of micro channel tubing for heat exchangers for climate control systems with CO 2 refrigerant.
Permanent Link:	http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1107891543 http://hdl.handle.net/2374.OX/14123
Date:	2004

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