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Ravindra, Models for the expansion valve and heat exchangers for vapor compression cycles don't exist in TRNSYS as far as I am aware. In order to write such a model you would need to know what refrigerant is being used in the cycle and you'd need a routine to give you refrigerant properties. I am not sure if TRNSYS is the right tool to use to model a vapor compression cycle. Typically we work with systems in TRNSYS that have transient behavior on the order of a minute or longer. The transients in the individual components of a vapor compression cycle are much shorter than that. At one minute intervals such a refrigeration cycle looks quite steady state and so we typically use performance maps to model them. When I need to look inside the cycle, I typically use a program called EES (Engineering Equation Solver). kind regards, David
On 06/30/2017 01:51, v ravindra via
TRNSYS-users wrote:
-- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley@tess-inc.com http://www.tess-inc.com http://www.trnsys.com |