Heat energy supplied and transferred to the greenhouses microclimate using solar heating system [electronic resource].

Includes references.

Three identical gable-even-span greenhouses were designed, constructed, and utilized to grow and produce hot pepper crops during winter season of 2005. Each one was equipped with complete solar heating systems (solar water heater, storage tank, and heat distributing system). Three similar heat distributing systems (using parallel flow) were designed, constructed and situated inside the greenhouses to utilize the stored energy from the storage tank for heating ambient air inside the greenhouses. The greenhouses were covered using three different glazing materials, corrugated fiberglass reinforced plastic, flat fiberglass reinforced plastic, and double layer of polyethylene. Each greenhouse was provided with 75 pots as a cultivation system for protected .cropping, drip irrigation system for watering pots of crop (hot pepper), and microclimate control board. A microclimate computer based data-logger system was employed to read, display, and record (from sensors) various temperatures, solar radiation, air relative humidity, and wind speed.

Summary in Arabic.

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