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Analytical Approach in DeCoMThere are many papers on describing a LHP as an overall system, but few detail on the condenser section of a loop heat pipe. The DeCoM (Deepak Condenser Model) method utilizes user set initial parameters in-order to simulate a condenser by calculating the interactions between the fluid and the wall. Equations are derived for two sections of the condenser: a two-phase section and a subcooled (liquid) section. All Equations are based upon the conservation of energy theory, from which fluid temperature, and fluid quality values are solved. In order to solve for the heat transfer value, between fluid and the wall in two phase section, the Lockhart-Martinelli correlation method was implemented as a solution approach. For Liquid phase, the Reynolds number was used in-order to differentiate the flow state, from either turbulent or laminar, and Nusselt number was used to solve for the film coefficient. To represent these calculations for both sections a flow chart is presented in order to display the execution process of DeCoM. The benefit of DeCoM is that it is capable of performing preliminary analysis without requiring a license and without much of users knowledge on condensers.
Document ID
20110023392
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Patel, Deepak
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 25, 2013
Publication Date
August 15, 2011
Subject Category
Fluid Mechanics And Thermodynamics
Report/Patent Number
GSFC.CPR.5348.2011
GSFC.CP.5372.2011
GSFC.CPR.5380.2011
Report Number: GSFC.CPR.5348.2011
Report Number: GSFC.CP.5372.2011
Report Number: GSFC.CPR.5380.2011
Meeting Information
Meeting: Thermal and Fluids Analysis 2011
Location: Newport News, VA
Country: United States
Start Date: August 15, 2011
End Date: August 19, 2011
Sponsors: NASA Engineering and Safety Center (NESC) Technical Discipline Teams (TDTs)
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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