Intensification in Convective Heat Transfer by using Wire Coil Insert

Author:

Suyash Chavan 1,Suyog Chavan 1,Abhinandan Dhonukshe 1,Shubham Lanjekar 1,Shodhan Mayekar 1

Affiliation:

1. Finolex Academy of Management and Technology, Ratnagiri, India

Abstract

This project explores enhancing convective heat transfer through the implementation of wire coil inserts. Investigating how these inserts intensify heat transfer could lead to improved efficiency in various applications. In the current study, a numerical method is used to investigate the thermal energy transfer and pressure drop augmentation in helically coiled tube heat exchanger with a coiled wire insert made from mild steel. The impact of geometrical parameters of the inserts like diameter and cross sectional form on the intensification of the Nusselt and the friction factor number is studied. The Transition SST model is used to simulate the impact of turbulence. The model validation is performed by comparing the results with the empirical equations of prior experimental works. Furthermore, using inserts with concentric circular cross section with diameter of 0.008 m and two rectangular cross sections are recommended for the intensification of heat transfer at the inlet mass flow rate 0.05 kg/s while, all inserts are suggested at the inlet mass flow rate of 0.075 kg/s. As a part of the study, a correlation is proposed for estimating the Nusselt number of these heat exchanger.

Publisher

Naksh Solutions

Reference23 articles.

1. Effect of heat treatments on the mechanical properties of DIN 50Cr3 spring steel Authors: O. Elzahed ,M. TOLBA Sallam ,K.Almazy and M.M.Osman (2017)

2. This experimental study was conducted to investigate the optimum combination of properties between ductility and toughness from one hand and strength and hardness from the other hand of a commercial grade of light duty spring steel DIN 50Cr3 having a chemical composition of (0.25 % C, 0.8%Cr , 0.79%Mn , 0.2% Si).

3. Heat treatment of cold formed sprimgs made frome oil hardened and tempered spring steel wire Authors: Veronika Geinitz, Ulf Kletzin1(2022)

4. The heat treatment after cold forming is used to decrease the residual stresses of springs, but the mechanical characteristics of the spring steel wires alters, too.

5. Heat Treatment of cold formed springs made from oil hardened and tempered spring steel wire..

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