Experimental Investigation of Helical Coil Tube in Tube Heat Exchanger with Microfins Using Al2O3/Water Nano Fluid

2020 ◽  
pp. 855-871
Author(s):  
Nilesh K. Kadam ◽  
A. R. Acharya
Keyword(s):  
Experimental Investigation ◽  
Heat Exchanger ◽  
Helical Coil ◽  
Tube Heat Exchanger ◽  
Nano Fluid

Experimental Investigation to Evaluate the Performance of Helical Coiled Tube Heat Exchanger With Using TiO2 Nanofluid

2013 ◽  
Author(s):  
Qasim Saleh Mahdi ◽  
Sahar A. Fattah ◽  
Firas Juma
Keyword(s):  
Heat Transfer ◽  
Experimental Investigation ◽  
Heat Transfer Coefficient ◽  
Heat Exchanger ◽  
Transfer Coefficient ◽  
Helical Coil ◽  
Dean Number ◽  
Tube Heat Exchanger ◽  
Nano Fluid ◽  
Coil Heat Exchanger

Experimental investigation of heat transfer enhancement in heat transfer coefficient of shell and helical coil tube heat exchanger with and without addition nanofluid is carried out in the present work. Experimental work is included two parts: the first one is included design of helical coil heat exchanger with optimum curvature ratio (17), an optimum helical coil pitch has been used to study the heat transfer coefficient without nanofluid. The second part is included studying the effect of using (Oxide Titanium TiO2) nanoparticle powder with 20 nm diameter is dispersed in distilled water with different volume concentrations (0.2, 0.4, 0.6, and 0.8) % by volume on heat transfer coefficient. The experimental results showed that, when nanofluid was used there is an increase in heat transfer coefficient and thermal conductivity by (20) %. An empirical correlation has been found to show the variation of Nusselt number with Dean number by using nano fluid with error of (±5%).

Experimental Investigation on Al2O3 & Cu/Oil Hybrid Nano fluid using Concentric Tube Heat Exchanger

2018 ◽  
Vol 5 (5) ◽  
pp. 12142-12150 ◽  
Author(s):  
Y. Phanindra ◽  
S.D. Kumar ◽  
S. Pugazhendhi
Keyword(s):  
Experimental Investigation ◽  
Heat Exchanger ◽  
Tube Heat Exchanger ◽  
Nano Fluid

Experimental investigation of shell-and-tube heat exchanger with a new type of baffles

2011 ◽  
Vol 47 (7) ◽  
pp. 833-839 ◽  
Author(s):  
Yingshuang Wang ◽  
Zhichun Liu ◽  
Suyi Huang ◽  
Wei Liu ◽  
Weiwei Li
Keyword(s):  
Experimental Investigation ◽  
Heat Exchanger ◽  
Tube Heat Exchanger ◽  
New Type ◽  
Shell And Tube

scholarly journals Performance analyses of helical coil heat exchangers. The effect of external coil surface modification on heat exchanger effectiveness

2016 ◽  
Vol 37 (4) ◽  
pp. 137-159 ◽  
Author(s):  
Rafał Andrzejczyk ◽  
Tomasz Muszyński
Keyword(s):  
Heat Transfer ◽  
Surface Modification ◽  
Heat Exchanger ◽  
Heat Exchangers ◽  
Helical Structure ◽  
Nuclear Industry ◽  
Helical Coil ◽  
Tube Heat Exchanger ◽  
High Heat Transfer ◽  
Coil Heat

Abstract The shell and coil heat exchangers are commonly used in heating, ventilation, nuclear industry, process plant, heat recovery and air conditioning systems. This type of recuperators benefits from simple construction, the low value of pressure drops and high heat transfer. In helical coil, centrifugal force is acting on the moving fluid due to the curvature of the tube results in the development. It has been long recognized that the heat transfer in the helical tube is much better than in the straight ones because of the occurrence of secondary flow in planes normal to the main flow inside the helical structure. Helical tubes show good performance in heat transfer enhancement, while the uniform curvature of spiral structure is inconvenient in pipe installation in heat exchangers. Authors have presented their own construction of shell and tube heat exchanger with intensified heat transfer. The purpose of this article is to assess the influence of the surface modification over the performance coefficient and effectiveness. The experiments have been performed for the steady-state heat transfer. Experimental data points were gathered for both laminar and turbulent flow, both for co current- and countercurrent flow arrangement. To find optimal heat transfer intensification on the shell-side authors applied the number of transfer units analysis.

Sign in / Sign up

Export Citation Format

Share Document