کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11020804 | 1715612 | 2019 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Evaluation of a dehumidifier in a mild weather greenhouse
ترجمه فارسی عنوان
ارزیابی یک رطوبت گیر در یک گلخانه ی هوای ملایم
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کلمات کلیدی
رطوبت زیاد، بیماری های گیاهی، پمپ حرارتی، حفظ توده و انرژی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
The high humidity that surrounds crop plants, aggravated in mild weather greenhouses by high transpiration and lack of ventilation, encourages plant diseases and physiological disorders. A heat pump dehumidifier (HPD) has been installed in a mild weather greenhouse. Its development and the characteristics of the dehumidification process have been studied. The results indicate that the HPD reduced the risk of crop damage caused by humidity. Its effectiveness was related to the temperature value and the air humidity inside the greenhouse. HPD operation was not suitable under dry weather conditions. Conversely, when humidity was excessive, the HPD did not eliminate the risk of moisture damage. The appropiate conditions for using an HPD to eliminate humidity damage risk are relative humidity between 84% and 88%, and air temperature higher than 15.0â¯Â°C. Under these conditions, the condensed steam production value was 14.2â¯kgâ¯hâ1, the specific moisture extraction rate was 2.3â¯kgâ¯(kWâ¯hâ1), and the coefficient of performance was 2.5.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 146, 5 January 2019, Pages 92-103
Journal: Applied Thermal Engineering - Volume 146, 5 January 2019, Pages 92-103
نویسندگان
José M. Cámara-Zapata, Jorge A. Sánchez-Molina, Francisco RodrÃguez, Juan C. López,