Investigation of the Dynamic Heat Transfer Coefficient of R-134a in a Horizontal Pipe

Publikationstyp
Conference Paper
Date Issued
2014-07
Sprache
English
Author(s)
Rückert, Jan Philipp  
Schmitz, Gerhard  
Institut
Technische Thermodynamik M-21  
TORE-URI
http://hdl.handle.net/11420/5012
Article Number
1440
Citation
15th International Refrigeration and Air Conditioning Conference at Purdue 2014
Contribution to Conference
15th International Refrigeration and Air Conditioning Conference at Purdue 2014  
Publisher Link
https://docs.lib.purdue.edu/iracc/1440/
This paper presents a test rig to measure the dynamic heat transfer coefficient of the refrigerant R-134a in a small diameter horizontal pipe. The experiment layout is basically a cooling cycle. The basic components are a receiver tank filled with R-134a, a pump, an evaporator pipe and a condenser. The evaporator pipe made out of copper is the main element. Thermocouples, pressure sensors and a mass flow sensor provide the information necessary to determine the heat transfer coefficient of the horizontal pipe. In addition to the experimental nvestigations, a numerical model is created. The results are compared with the test rig results to validate the numerical model.
DDC Class
600: Technology