Title: Optimisation of perforated plate matrix heat exchanger surfaces using Taguchi and analysis of variance method

Authors: Anish K. John; K. Krishnakumar

Addresses: Department of Mechanical Engineering, College of Engineering Trivandrum, Thiruvananthapuram, Kerala, 695016, India ' Department of Mechanical Engineering, College of Engineering Trivandrum, Thiruvananthapuram, Kerala, 695016, India

Abstract: Determining the basic heat transfer and flow friction characteristics of heat transfer surfaces of matrix heat exchanger will help to understand the basic mechanisms involved for its development. In this paper, the effect of different dimensionless parameters such as Reynolds number (Re), porosity (p), perforation perimeter factor (Pf), plate thickness to pore diameter ratio (l/d), spacer thickness to plate thickness ratio (s/l) on heat transfer and flow friction characteristics are analysed using Taguchi signal-to-noise ratio (S/N) method. Taguchi method and analysis of variance (ANOVA) were utilised to determine the optimal heat transfer and flow friction parameters. Through multivariable linear regression analysis, correlations for Colburn factor, j and friction factor, f with the dimensionless parameters. A model was generated and a good approximation was achieved in comparing the experimental data and the predicted data obtained from the model.

Keywords: matrix heat exchangers; Colburn factor; heat transfer; flow friction; Taguchi methods; analysis of variance; ANOVA; optimisation; perforated plates; heat exchanger surfaces; Reynolds number; porosity; perforation perimeter factor; plate thickness; pore diameter; spacer thickness; signal-to-noise ratio; SNR; modelling.

DOI: 10.1504/IJSOM.2016.076503

International Journal of Services and Operations Management, 2016 Vol.24 No.2, pp.186 - 207

Received: 13 May 2014
Accepted: 12 Sep 2014
Published online: 11 May 2016 *

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