An Arrangement to Ensure Optimum Temperature of Traffic Police Booth
K. Augustine Babu and P. Sherjin Department of Mechanical Engineering, Sri Ramakrishna Institute of Technology, Coimbatore, Tamil Nadu, India
Abstract The temperature of the traffic police booth is found to be at an elevated level during hot sunny days, which may cause discomfort to the person who is standing under it. Lowering this high inside temperature of the booth is the central theme of this work. Semi-conductor based thermoelectric modules can be used to alter the temperature of the booth to a considerable extent, with respect to the ambient condition. For designing of this unit, water is stored in a reservoir placed beneath the booth and is circulated through…show more content… The results showed a subsequent drop in temperature with this arrangement provided when compared with those obtained without the set up. Thus the design proves to be a promising door for controlling the temperatures inside the booth and may provide a gateway for any advancement in future.
Keywords: Cooling Arrangement, Traffic Police Booth, Thermoelectric Modules, Peltier Effect, Thermal Analysis.
The performance of the work and also, the effectiveness of the human being is greatly influenced by his surroundings. This is also true in the case of the policeman, who stands under the traffic police booth. The temperature under the roof of the booth is found to be higher than the comfort level of an individual, especially, when the sun is hot at the peak. Reducing the inside temperature range for traffic police booth could increase the effectiveness of the person and improve his work. This objective can be attained by using thermoelectric module and heat exchanger. Experimental investigation shows that HFC’s causes the temperature of the earth to increase by almost 10%. These HFC’s are commonly used in air conditioners (Prof. N. B. Totala, Prof. V. P. Desai…show more content… On passing direct current through the n and p-type pairs of semiconductor materials, refrigeration by thermoelectric modules is achieved. When the current passes from the n-type to the p-type, cooling occurs. Cooling occurs when the heat is absorbed from the environment. This cooling occurs when electrons move from the p-side to the n-side of the material, through the interconnecting conductor. Electron transport cause the absorbed heat to be transferred. The liberaton of the absorbed heat occurs, when the electrons jump to the lower energy p-type material. This process is called as the Peltier effect. Just by applying a low DC voltage to this module, one surface gets cold and the other surface gets hot. And just by reversing the applied DC voltage, the heat moves to the other direction. Thus, this thermoelectric device works as a heater or a cooler. Higher the differential temperature, higher the electric power and electromotive force. When the electrical connections between two modules were serial, the power generated was more (N. Sangwaranatee and N. W. Sangwaranatee, 2015). Inorder to verify the Peltier effect heat pump, a refrigeration system was designed and