The present work demonstrates the use of manifold microchannel technology in conjunction with conventional macrogeometries to achieve superior performance compared to traditional heat exchangers. A novel tubular manifold heat exchanger is designed using three-dimensional (3D) printed manifold and conventional double enhanced tube. The experiments are performed using water as the working fluid and the manifold side heat transfer coefficient up to 9538 Wm−2K−1 with a low flowrate of 4.25 lpm is achieved with as low pressure drop as 323 Pa. A comparison with respect to thermal hydraulic performance of the results with a plate heat exchanger shows clear advantage of the proposed exchanger. Overall, microscale heat transfer characteristics are obtained by using relatively simple and economical fabrication techniques.
Experimental Performance Evaluation of Tubular Manifold Heat Exchanger
Department of Mechanical Engineering,
Khalifa University of Science and Technology,
Room 3008A, Sas Al Nakhl Campus,
P.O. Box 2533,
Abu Dhabi, United Arab Emirates
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS. Manuscript received May 17, 2018; final manuscript received August 12, 2018; published online October 15, 2018. Assoc. Editor: Amir Jokar.
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Ansab Ali, M., Khan, T. S., Al Hajri, E., and Khasawneh, F. (October 15, 2018). "Experimental Performance Evaluation of Tubular Manifold Heat Exchanger." ASME. J. Thermal Sci. Eng. Appl. February 2019; 11(1): 011012. https://doi.org/10.1115/1.4041346
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