Optimization of the efficiency of permeable thermoelectric elements for air conditioner applicatons

The optimization of permeable thermoelement for thermoelectric air conditioner unit based is presented. In the thermoelectric air conditioner unit the air flow is cooled due to a combined action of thermoelectric effects and the Joule-Thomson effect. Methods for calculation of temperature distribution, determination of power conversion energy characteristics and thermoelement design in maximum COP mode are discussed. Results of computer studies for the case of thermoelement legs based on Bi2Te3 material have shown the possibility of COP increase by a factor of 1.6-1.7 as compared to conventional thermoelectric systems.

Design and Analysis of a Thermoelectric Air-conditioning System

Thermoelectric devices use the Peltier effect which creates a heat flux between the junctions of two different types of materials. The thermoelectric module also referred to as a heat pump transfers heat from one side to the other when a DC current is applied. This study carried out the theoretical and experimental analysis of a thermoelectric air conditioning system. A prototype thermoelectric air conditioner of 286 W cooling capacity was built and a testing enclosure made from plywood and Styrofoam was also constructed in order to validate the theoretical result with an experimentation. It was discovered that thermoelectric air conditioning took 4 minutes to reach its desired temperature of 22℃ whereas the standard air conditioning system (Refrigeration Cycle) took 20 minutes to cool to a room temperature. Economically it was also discovered that thermoelectric air conditioning system is 50% cheaper than the refrigeration cycle air conditioning systems. The thermoelectric air conditioner has cheaper maintenance and greater estimated life span of 7 years more than the refrigeration air conditioner. This is because the air conditioner that operates on the refrigeration cycle uses a rotating compressor while the thermoelectric air conditioner uses thermometric module.

Theoretical Investigation and Analysis of Solar Thermoelectric Air-Conditioner

With consideration of energy utilization and environmental protection, a solar thermoelectric air conditioner is designed, its composition characteristics, working principle is introduced, and factors that affect its performance have been analyzed theoretically.