Abstract

This paper presents the temperature control in aluminum plate with Peltier module. From the experimental work, Peltier module is used to control the temperature of small aluminum plate for both heating and cooling with the control of current and fan ON/OFF. And current control of Peltier module was accomplished by PWM method. As a result of experiments, it is proper that operate cooling fan only while cooling duration and there exist a proper cooling current to drop temperature rapidly. It takes about 125sec to control temperature of aluminium plate between 30℃ and 70℃ and about 70sec between 40℃ and 60℃, in ambient temperature 28℃ -29℃ while cooling fan is operated only cooling duration. With the cooling current, temperature control of aluminum plate was accomplished more rapidly in comparison without cooling current. Future aim is to realize more rapid temperature control and develop SMHA(special metal hydride actuator) by using Peltier module as a heating and cooling source.

• Keywords: Peltier module(펠티어소자),Peltier effect(펠티어효과),Seebeck effect(제벡효과),Thermoelectric module(열전소자),Thermo-electromotive force(열기전력),PWM(펄스폭 변조)