Study Of Thermoelectric Cooling-based Medical Reagent Storehouse And Heat Transfer Enhancement Of The Hot Side

Thermoelectric cooling is widely applied to temperature control.Temperature is crucial to medical reagent that needs to be stored under the condition of low temperature. Medical reagent will be out of work if the temperature is not in good. The space that small medical reagent storehouse can provide for installing refrigerating module is limited. Therefore, the traditional refrigeration cannot satisfy the refrigerating demand. So, thermoelectric cooling that can widely apply to the temperature control in the small Medical reagent storage has the advantages of convenient installation, module of small size and so on. This text adopts the method of thermoelectric cooling to develop medical reagent storage and make an optimal analysis.This article design a kind of reagent storehouse which reagent has five positions to store according to the demand of medical reagent storage and select forced convection with the combination of heat sink and the fan via thermoelectric calculation and actual situation. It also respectively does structured design between the thermolytic system of thermoelectric refrigeration slide and waterproof section and completes the development of thermoelectric refrigeration medical reagent storage. Experimental research on the function of thermoelectric cooling module suggests that this thermoelectric equipment can keep the medical reagent within the range of temperature.The temperature is 7.2℃、6.7℃、6.3℃、7.0℃、7.3℃.Finally,the margin of optimal and experimental result is restricted to no more than six percentage.Heat sink of thermoelectric cooling module has been optimized by means of CFD analysis which indicates that the temperature of thermoelectric cooling module is lower than before. In the meanwhile, the running condition of thermoelectric cooling has been optimized. Results show that the cold side temperature of the fan blowing state is 1.28 lower than that of the cold side of the fan suction state; the refrigerating effect of the system was the best when the operating current was 3A;the temperature of the cold and hot side rise as the ambient temperature rise; interface thermal resistance has a significant effect on the thermoelectric cooling system; COP has fallen from 0.337 to0.264 in comparison with considering interface thermal resistance and without considering that. This thesis show that, In a certain environmental temperature, the temperature of those reagents in the medical reagent storage will be well controlled adopting thermoelectric cooling module.