Turkish Journal of Agriculture and Forestry




A dynamic model is developed to compute the greenhouse’s heating load and microclimatic conditions (temperature, humidity). An analysis is carried out for the provinces of Türkiye (Adana, Mersin, Antalya, Muğla), where greenhouse cultivation is essential and widespread. The annual heating load of the greenhouse is determined as 95.52 kWh/m2, 92.58 kWh/m2, 74.79 kWh/m2, and 189.04 kWh/m2 for Adana, Mersin, Antalya, and Muğla, respectively. Maximum daily heating loads are computed as 1.87 kWh/m2, 2.06 kWh/m2, 1.4 kWh/m2, and 2.91 kWh/m2 for Adana, Mersin, Antalya, and Muğla. According to the results of the design day, condensation in the greenhouse is observed in the daytime in provinces Adana, Mersin, and Muğla. The ventilation rate must be increased in the daytime to prevent this adverse condition, which will lead to an increase in the heating load. The obtained soil temperature profile in the greenhouse is suitable for Adana, Mersin, and Antalya. However, the soil surface temperature is approximately 6-7 °C in Muğla, which is unsuitable for plant growth. Determination of the heating load only by heat transfer through the cover and by ventilation is not sufficient because it ignores factors such as moisture content and soil temperature that affect plant growth. To calculate the accurate heating load, microclimatic conditions must also be determined.


Solar greenhouse, heating load, dynamic model, energy analysis, solar radiation, Türkiye

First Page


Last Page