Experimental Study of Stationary-Head/Channel Cover STHE Prototype Using ε-NTU Method

Tanujaya, Harto Experimental Study of Stationary-Head/Channel Cover STHE Prototype Using ε-NTU Method. Experimental Study of Stationary-Head/Channel Cover STHE Prototype Using ε-NTU Method.

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Abstract

Our research focuses on the performance evaluation of the small shell-and-tube heat exchanger (STHE) – laboratory type. The
experiment used the prototype design of stationary-head/channel cover using the ring rubber, which separate the hot and cold
fluid in a chamber. The stationary-head prototypes unusually are designed using low cost manufacture and simple construction,
without bolt or nut to join both the stationary-head and shell. The shell has four holes to supply hot/cold fluid, and next to the
tube-sheet hole to supply cold/hot fluid, the position both of them are inside the stationary-head. The single and double segmental
baffles were used in this study. Calculation of thermal performance and effectiveness of STHE were calculated based on ε-NTU
method. The correlation of heat transfer proposed was based on the unique construction of stationary-head design for the
effectiveness of STHE. The data were collected from the both single and double segmental baffles, which were investigated
by varying flow rate. The investigation including Reynolds and Nusselt number, heat transfer coefficient, and pressure drop
which all effects of the shell-and-tube heat exchanger effectiveness. The results show that the ratio of the actual heat transfers for
single segmental was higher than double segmental and the average effectiveness of single segmental baffle was 10 to 30% less
than the double segmental baffles.

Item Type:	Article
Subjects:	Penelitian > Fakultas Teknik
Divisions:	Fakultas Teknik > Teknik Mesin
Depositing User:	Puskom untar untar
Date Deposited:	10 Mar 2021 06:32
Last Modified:	10 Mar 2021 06:32
URI:	https://repository.untar.ac.id/id/eprint/14824

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