Comparison of different mechanical systems models for a passive solar greenhouse with two thermal zones
The construction of passive solar greenhouses on urban rooftop is gaining popularity in Canada. This type of greenhouse provides many energetic and economic advantages. However, their conception remains atypical. Heating and ventilation systems generally recommended for standard greenhouses are often inadequate for this kind of specific application. The objective of this article is to evaluate different mechanical system types and configurations to be installed in a passive solar greenhouse with two thermal zones. Three systems, forced air with terminal reheats, baseboards, and radiant floor, will be modeled using the OpenStudio/EnergyPlus software. The results will be presented for each option and recommendations will be provided based on the analysis of thermal comfort and energy use.