An Experimental Investigation to Predict the Influence of Number of Peltier Modules and Input Voltage during Non-Conventional Cooling

M. Sowjanya; Md Firasat Ali Zahed; Md Abdul Hafeez; Md Aslam Sohail; Md Hammad

M. Sowjanya Professor, CVR College of Engineering/Mechanical Department, Hyderabad, India
Md Firasat Ali Zahed CVR College of Engineering/Mechanical Department, Hyderabad, India
Md Abdul Hafeez CVR College of Engineering/Mechanical Department, Hyderabad, India
Md Aslam Sohail CVR College of Engineering/Mechanical Department, Hyderabad, India
Md Hammad CVR College of Engineering/Mechanical Department, Hyderabad, India

Abstract

Requirement of low temperature (air conditioning and refrigeration) has many applications in the industry. However, excessive use of refrigerants for this purpose leads to ozone depletion and increase in global warming. Development of an alternative eco-friendly refrigeration system is in great demand. Non-conventional cooling using Seebeck and Peltier effect is gaining importance as an alternative. The data pertaining to the number of modules and input voltage required to obtain a specific temperature drop is not available in the literature. Hence, in the present work an equipment is developed and experimental investigation is carried out to find the effect of number of modules and the input voltage to obtain a temperature drop of water by 10 ^OC. The time taken for lower input voltages (2 V to 6 V) is 50 to 30 minutes. For input voltage of 10 V the time taken to reduce the temperature of water is only 10 min. The data obtained from the experimental investigation predicts the number of modules required to cool the water to 0 ^oC and also the heat transfer rate for every 1 ^oC change in temperature. The results will help to design thermo-electric coolers of different capacities with temperature control.