Experimental Investigation of Heat transfer rate of Nano fluids using a Shell and Tube Heat exchanger

International Conference on Advances in Materials and Manufacturing Applications 2016

Rao, M Siva Eswara^1 ; Sreeramulu, Dowluru^1 ; Naidu, D Asiri^2

Department of Mech. Engg, Aditya Institute of Technology and Management, Tekkali

AP, India^1

Centre for Nano Technology, Andhra University, Vizag

AP, India^2

关键词: Alumina Nanoparticle;    Alumina particles;    Counter flow conditions;    Experimental investigations;    Heat transfer equipment;    Heat transfer rate;    Inlet temperature;    Shell and tube heat exchangers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/149/1/012204/pdf
DOI  :  10.1088/1757-899X/149/1/012204

来源: IOP

【 摘 要 】

Nano fluids are used for increasing thermal properties in heat transfer equipment like heat exchangers, radiators etc. This paper investigates the heat transfer rate of Nano fluids using a shell and tube heat exchanger in single and multi tubes under turbulent flow condition by a forced convection mode. Alumina Nanoparticles are prepared by using Sol-Gel method. Heat transfer rate increases with decreasing particle size. In this experiment Alumina Nano particles of about 22 nm diameter used. Alumina Nano fluids are prepared with different concentrations of Alumina particles (0.13%, 0.27%, 0.4%, and 0.53%) with water as a base fluid using ultra-sonicator. Experiment have been conducted on shell and tube heat exchanger for the above concentrations on parallel and counter flow conditions by keeping constant inlet temperatures and mass flow rate. The result shows that the heat transfer rate is good compared to conventional fluids. The properties of Nano fluids and non-dimensional numbers have been calculated.