Assessment of Passive Augmentation Technique in Circular Tube side CMC/Water Process Fluid using Twisted Tape

P.B. Dehankar¹ , Keshava Joshi² , S.A. Desai³ , V.A. Bhosale⁴

Section:Research Paper, Product Type: Journal-Paper
Vol.7 , Issue.1 , pp.20-22, Feb-2020

Online published on Feb 28, 2020

Copyright © P.B. Dehankar, Keshava Joshi, S.A. Desai, V.A. Bhosale . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
Heat exchangers are used in processes to recover the heat between two process fluids in industries like chemical, petrochemical, food, beverages, thermal, etc. Influence of Heat transfer augmentation technique (passive) on heat transfer; pressure drop and thermal performance characteristics under laminar flow condition is reported. In the present paper; Carboxymethyl Cellulose (CMC) having a concentration of 0.02 % with tap water as a process fluid has been studied. The experimental values for parameters as friction factor, Reynolds number along with mass flow rate ranges between 0.02 kg/sec to 0.033 kg/sec tube side fluid. The study of heat transfer augmentation technique; passive technique using twisted tape having twist ratio Y = 4.3. This passive technique affects the heat transfer coefficient, pressure drop, friction factor, and Reynolds number. From experimental work, it was observed that for twisted tape; a higher heat transfer coefficient and higher pressure drop and hence higher friction factor has been obtained when compared with a smooth tube.

Key-Words / Index Term :
Carboxymethyl Cellulose, Coefficient of Heat Transfer, Friction factor, Passive augmentation, Twist tape

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