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Evaluation of a 0.7 kW Suspension-Type Dehumidifier Module in a Closed Chamber and in a Small Greenhouse

Author

Listed:
  • Md Nafiul Islam

    (Department of Biosystems Engineering and Soil Science, College of Agricultural Sciences and Natural Resources, University of Tennessee, Knoxville, TN 37996, USA)

  • Md Zafar Iqbal

    (Department of Biological and Agricultural Engineering, College of Agriculture and Life Sciences, Texas A&M University, College Station, TX 77843, USA)

  • Mohammod Ali

    (Department of Agricultural Machinery Engineering, Graduate School, Chungnam National University, Daejeon 34134, Republic of Korea)

  • Md Ashrafuzzaman Gulandaz

    (Department of Agricultural Machinery Engineering, Graduate School, Chungnam National University, Daejeon 34134, Republic of Korea)

  • Md Shaha Nur Kabir

    (Department of Agricultural Machinery Engineering, Graduate School, Chungnam National University, Daejeon 34134, Republic of Korea
    Department of Agricultural and Industrial Engineering, Faculty of Engineering, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200, Bangladesh)

  • Seung-Ho Jang

    (Shinan Green-Tech Co., Ltd., Suncheon 58027, Republic of Korea)

  • Sun-Ok Chung

    (Department of Agricultural Machinery Engineering, Graduate School, Chungnam National University, Daejeon 34134, Republic of Korea
    Department of Smart Agricultural Systems, Graduate School, Chungnam National University, Daejeon 34134, Republic of Korea)

Abstract

Controlling humidity inside greenhouses is crucial for optimum plant growth and controlling physiological disorders and diseases. The humidity response and uniformity depend extensively on the evaluation of the dehumidifier. The objective of this research was to evaluate a low-powered suspension-type dehumidifier module in terms of humidity changes and spatial and vertical variability in a closed chamber and in a small greenhouse. A wireless sensor network including 27 sensor nodes was used to collect the data during the humidity changes from 80% to 70% and 90% to 70%. The humidity response results showed that the times required for dehumidification from 80% to 70% and 90% to 70% were 13.75 and 21.51 min, respectively, for the closed-chamber operation. Similarly, for the small greenhouse, 18 and 35 min were required to reduce the humidity levels from 80% to 70% and 90% to 70%, respectively. The spatial and variability results indicated that the changes in humidity at the rear and bottom layers were slower than those in the other layers of both experimental areas. The findings of this study would aid in the development of dehumidification strategies and sustainable agriculture for monitoring and controlling humidity in greenhouses using low-powered dehumidifiers.

Suggested Citation

  • Md Nafiul Islam & Md Zafar Iqbal & Mohammod Ali & Md Ashrafuzzaman Gulandaz & Md Shaha Nur Kabir & Seung-Ho Jang & Sun-Ok Chung, 2023. "Evaluation of a 0.7 kW Suspension-Type Dehumidifier Module in a Closed Chamber and in a Small Greenhouse," Sustainability, MDPI, vol. 15(6), pages 1-17, March.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:6:p:5236-:d:1098391
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    References listed on IDEAS

    as
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