Two Phase Flow Maldistribution in Parallel Channels of Evaporators: Experimental and Analytical Modeling - Softcover

Habte, Melaku

Softcover

ISBN 10: 3639134397 ISBN 13: 9783639134391

Publisher: VDM Verlag Dr. Müller, 2009

Synopsis

The performance of thermal devices such as evaporators is greatly affected due to flow mal- distribution in the parallel channels. There is inherent flow mal-distribution in manifolds involving single-phase flow which is a result of non- uniformity of the pressure drop across each lateral channel. This will even be more complicated when the flow involves two phase, which is often the case in refrigerant flow of multi-pass evaporators, since there is gravity induced preferential phase separation at the entrance to lateral channels in manifolds. In this book, the result of experimental and theoretical study of single-phase and two-phase flow mal-distribution performed on a model brazed aluminum evaporator having horizontal headers is presented. The analytical method presented here provides a scheme on how to predict the flow split in a downward dividing header. Possible means of reducing mal-distribution is also discussed based on the result of flow visualization test.

About this title

About the Author

Dr. Melaku Habte received his M.Sc and PhD in Mechanical Engineering from Penn State University, USA. He served as a research assistant and member of the Neutron Beam Group of the research nuclear reactor at Penn State. Dr.Habte focuses on topics related to experimental and computational fluid flow and heat transfer (CFD).

Edition details

• Publisher: VDM Verlag Dr. Müller
• Publication date: 2009
• ISBN 10: 3639134397
• ISBN 13: 9783639134391
• Binding: Paperback
• Language: English
• Number of pages: 88