Gökhan Sır, Prof. Şevket Özgür Atayılmaz

Abstract: In addition to the increasing environmental awareness in Europe, Eco-design requirements and related legal regulations increase the competition in the durable consumer goods market. From the point of view of domestic dryers, the increase in energy efficiency has accelerated with the integration of the heat pump system into domestic tumble dryers. The price competitive design of these systems makes it important to model these systems and bring them to the most appropriate performance level. In this study, the effects of air flow, drum speed, drying capacity and compressor speed on heat and mass transfer in the drum were investigated in domestic heat pump dryers. Tests were carried out at 3 different load types, drum speed, air flow and compressor speed. As a result of the tests, the air and mass transfer coefficients in the drum were calculated. It has been observed that the parameter that most affects the heat and mass transfer coefficient in the drum is the load capacity. Load capacity is followed by compressor speed, air flow rate and drum speed, respectively.

Keywords: heat pump, laundry dryers, heat transfer coefficient, mass transfer coefficient

Date Published: June 1, 2022
DOI: 10.11159/jffhmt.2022.004

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