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Performance and economic analysis of natural convection based rubber smoking room for rubber cooperatives in Thailand

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  • Dejchanchaiwong, Racha
  • Kumar, Anil
  • Tekasakul, Perapong

Abstract

A modified rubber sheet smoking room was designed, constructed and tested, with uniform hot air flow inside in it, so that the temperature difference between any plane was less than 7 °C. This room can dry up to 1500 sheets in 72 h. Specific fuelwood consumption was 0.42 kg/kg of dried rubber. It consumed 67% less fuelwood and increased the fraction of good quality rubber sheets by 8.5% when compared to a conventional rubber smoking room. Thermal efficiency also increased from 6.9% to 15.7%. Moreover, the modified smoking room can save 1414 USD/year with payback period of 5.7 years. Therefore, the modified design can be recommended to rubber cooperatives for a better return.

Suggested Citation

  • Dejchanchaiwong, Racha & Kumar, Anil & Tekasakul, Perapong, 2019. "Performance and economic analysis of natural convection based rubber smoking room for rubber cooperatives in Thailand," Renewable Energy, Elsevier, vol. 132(C), pages 233-242.
    • Handle: RePEc:eee:renene:v:132:y:2019:i:c:p:233-242
    DOI: 10.1016/j.renene.2018.07.145
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    1. Ortiz-Rodríguez, N.M. & Marín-Camacho, J.F. & González, A. Llamas- & García-Valladares, O., 2021. "Drying kinetics of natural rubber sheets under two solar thermal drying systems," Renewable Energy, Elsevier, vol. 165(P1), pages 438-454.

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