experimentally analyzed on the dehumidification and thermal performance of a desiccant wheel. The system was located at the National School of Engineering of Sfax, Tunisia. designed and experimentally analyzed a new solar water desalination with a humidification-dehumidification method. While energy utilization increased with time, exergy efficiency decreased. Variant air temperature and air velocity were tested in this system. , thin layer drying of sour pomegranate arils was performed with a microwave treatment. At the end of the study, optimum drying temperatures were determined as 50-70 ☌. In this research, eight different models were fitted to the experimental data.

performed a thin layer drying of peeled litchi and controlled the system and the relative humidity. It is clear that when air temperature increases, drying time reduces. In a study by Doymaz, thin layer drying act of mint leaves was determined to be about 35-60 ☌. Mohannaj and Chandersalar designed and experimentally analyzed a forced convection solar dryer to dry copra under the Indian climatic condition. At the end of the study they found significant decrease at the heat and electricity consumptions. Heat and electricity consumptions were analyzed with different technologies. Anderson and Westerlund investigated and improved sawmill drying system. Midilli and Kucuk performed energy and exergy analyses for shelled and unshelled pistachios using a cabinet type solar dryer. The drying air temperature was about 50-75 ☌. In this dryer, hot air was generated in the solar heater and forced to the drying chamber. Singh studied the thin layer silk cocoon drying in a forced convection type solar dryer. It is the oldest and a very significant method for that reason, different types of studies have been carried out in the literature up to now. All rights reserved.ĭrying is known to be the removal of water from products to be dried. Depending on these values, 5.7 kg humidity was taken from the pine timber at the end of 50 h, and 12.5 kg from the poplar timber at the end of 70 h. At the end of the analysis, the amounts of humidity vaporized and intensified at the timber after drying were compared. The mass change in the timber was followed with a load cell. In the psychrometric analysis of the timber dryer with a heat pump, the pine and poplar timber were used. In order to bring the air to suitable drying conditions, an air conditioner unit was used and the mass change of the unit with energy was analyzed. In the current study, the relation between the psychrometry working upon the thermodynamic analysis of humid air and drying at a timber dryer was investigated. Journal homepage: Psychrometric analysis of a timber dryer $Įnergy Systems Engineering, Technology Faculty, Karabuk University, Karabuk, TurkeyĪrticle history: Received 25 October 2013 Accepted 10 November 2013 Available online 17 November 2013

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