An experimental study on the performance of a condensing tumbler dryer with an air-to-air heat exchanger

Yeongjin Do; Myungjong Kim; Taewan Kim; Seonghae Jeong; Sangho Park; Sangwoo Woo; Yeonghwan Kwon; Yoongho Jung; Jaekeun Lee; Youngchull Ahn

Korean Journal of Chemical Engineering, Vol.30, No.6, 1195-1200, June, 2013

DOI10.1007/s11814-013-0037-4 Export Citation

An experimental study on the performance of a condensing tumbler dryer with an air-to-air heat exchanger

Yeongjin Do, Myungjong Kim, Taewan Kim, Seonghae Jeong, Sangho Park, Sangwoo Woo, Yeonghwan Kwon¹, Yoongho Jung¹, Jaekeun Lee², and Youngchull Ahn^{3, †}

LG Electronics, Gaeumjeong-dong, Changwon City, Gyeongnam 641-711, Korea
¹School of Mechanical Engineering, Pusan National University, San 30, Jangjeon-dong, Geumjung-gu, Busan 609-735, Korea
²EcoEnergy Research Institute, Kangseo-gu, Busan 618-230, Korea
³Department of Architectural Engineering, Pusan National University, San 30, Jangjeon-dong, Geumjung-gu, Busan 609-735, Korea

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The performance of energy consumption in the closed-loop tumbler dryer with a condenser for clothes drying is evaluated as a function of the heater capacity, the drying air flow rate inside the dryer, and the cooling air flow rate. The clothes dryer in laundries used in this study consists of a tumbling drum, condenser for condensing the humid and hot air flowing out the rotating drums, and electric heater for heating the circulating drying air. Tests were performed at the heating capacity of 1.9 kW to 2.7 kW, the drying air flow rate of 60m3/h to 140m3/h, and the cooling air flow rate of 100 m3/h to 240 m3/h. The total energy consumption, the drying time, and the condensate water rate were also investigated. Parametric results showed that a larger heater power resulted in shorter drying time. With increasing heater power, the air temperature and the condensate rate increased due to the higher humidity ratio in the air. The drying air flow rate and the cooling air flow rate did not have a significant effect on drying performance.

Keywords:Tumbler Dryer;Condenser;Heater Power;Energy Consumption;Drying Time;Cooling Air Flow;Drying Air Flow

[References]

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Lee KS, Yang B, Pyo SY, Kim HG, Lee DH, Kim SD, Korean J. Chem. Eng., 23(4), 658 (2006)
Masahiro I, Tatsuo I, Teruya T, Toshiba Review., 61(10), 8 (2006)
Brauna JE, Bansal PK, Grolla EA, Int. J. Refrig., 25, 954 (2002)
Bassily AM, Clover GM, Dry. Technol., 21(3), 499 (2003)
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IEC 61121 (2007)

[1] Conde MR, Appl. Therm. Eng., 17(12), 1163 (1997)

[2] Cochran M, Goodnight J, Babin B, Eckels S, Appl. Therm. Eng., 29, 723 (2009)

[3] Bansal PK, Braun JE, Groll EA, Int. J. Energy Res., 25(15), 1315 (2001)

[4] Deng S, Han H, Appl. Therm. Eng., 24, 2789 (2004)

[5] Ameen A, Bari S, Energy Conv. Manag., 45(9-10), 1397 (2004)

[6] Lee KS, Yang B, Pyo SY, Kim HG, Lee DH, Kim SD, Korean J. Chem. Eng., 23(4), 658 (2006)

[7] Masahiro I, Tatsuo I, Teruya T, Toshiba Review., 61(10), 8 (2006)

[8] Brauna JE, Bansal PK, Grolla EA, Int. J. Refrig., 25, 954 (2002)

[9] Bassily AM, Clover GM, Dry. Technol., 21(3), 499 (2003)

[10] Bassily AM, Clover GM, Dry. Technol., 21(5), 919 (2003)

[11] IEC 61121 (2007)