Evaluation of Optimal Criteria for Designing Solar Greenhouses in Cold Climate Residential Buildings (Case Study: Tabriz, Iran)

Since a major part of energy in cold climates is spent on heating, using alternative methods to heat buildings particular importance for buildings. Solar greenhouses are inactive building solutions that absorb solar provide heating the side spaces. Greenhouse efficiency depends several factors. The research carried out so far has used these factors design greenhouse reduce consumption, which finally been compared with non-applied state this system. purpose study investigate physical characteristics such as “depth”, “protrusion”, “roof slope”, and “orientation” influence each factor different modes hours climate Tabriz. For purpose, simulation made “Energy Plus” software. In next step, optimal presented by comparing states first middle day month 6-hours period. Research results show; increasing surface while sun shining more depth when there no will maintain indoor temperature. Also, two or three-way (east south) increases 30%. roof slope effect room adjacent greenhouse. absence protrusions helps adjust temperature relative outside environment up 20 %. No significant was observed calculating ratio area summer. But season, large greatly impacts 15