Abstract: The greenhouse is a high energy construction, especially in cold area.It needs to adopt a variety of effective ways to reduce energy consumption as much as possible,and also must satisfy the needs of the plant growth and basic requirements for the staff. This paper introduces in detail the key points of HVAC design of a greenhouse in cold area,from the enclosure structure,heating and cooling system,heat transfer enhancement of radiator and ventilation of different seasons,take the Heixiazi Botanical Garden as an example.

Key words: greenhouse in cold area, enclosure structure, heat transfer enhancement of radiator, ventilation system