The thermoelectric clothes dryer

Thermoelectric clothes dryers do not need any environmental harmful coolants.

See for yourself... © R. Somdalen
Schematic diagram of a thermoelectric laundry dryer

The electricity consumption for clothes-drying machines was estimated for 2013 at about 4 billion kWh, which corresponds to resulting CO2 emissions of some 2.4 million tons. With the introduction of thermal pump technology a few years ago, the energy efficiency of dryers was nearly doubled. However the cooling agent currently used most often in thermal pump dryers, R134a, has a high greenhouse effect and should be kept out of the environment to the extent possible. In addition to the use of alternative, climate-friendly coolants, thermoelectric modules as thermal pumps represent a further highly promising and completely new concept. The thermoelectric clothes dryer (TE clothes dryer) is an alternative type of condenser dryer, in which a heat exchanger with built-in Peltier elements is utilized. The technology implemented involves using the Peltier effect for heat transfer. Through application of an electric voltage stream, a heat flow is produced via the Peltier element, making one side cold and the other warm. The performance range of Peltier elements  can be flexibly adjusted. The cooling and heating performance of the dryer can be modified without much delay. This enables a dynamic load management, and interconnection in households with intelligent device control.

Project implementation:

TU Braunschweig
Institut für Thermodynamik
Hans-Sommer-Straße 5
38106 Braunschweig
0531 | 3912627
r.somdalen@tu-bs.de
www.ift-bs.de


AZ 32384