Modeling and simulation of a root-zone heating in greenhouse using solar collectors

Heating the soil temperature can improve seed germination and plant growth. Using renewable energy for greenhouse heating is recommended due to environmental concerns and the possibility of fossil fuel scarcity. This study analyzed the heat transfer relationships of pipes and solar collectors using Python software to determine the most optimal mode. This research aims to heat a specific type of greenhouse (with a surface area of ۱۰ m۲ out of ۵۰۰ m۲ in Shahtekord, Iran) using root-zone installations. The results indicate that the diameter and depth of the pipe placement from the root have a significant impact on the amount of heat supplied from the collector side. Increasing the pipe diameter results in higher system heat requirements while decreasing the depth of the pipes leads to a decrease in the supplied heat from the collector side. After analyzing these parameters, it was determined that the optimal distance for placing the pipe from the root is ۳۰ cm. Also, in December, which is the coldest month, ۱۶ collectors are required to meet the necessary heat supply.

کلیدواژه ها:

Root-zone system ، Solar energy ، Greenhouse ، Solar collector