Moisture Balance Model for Predicting Dehumidification Requirement for a Tomato Greenhouse Located in a Cold Region
Authors: Han, J., H. Guo, R. Brad, D. Waterer
Description: Relative humidity (RH) is one of the key elements in a greenhouse environment. High RH levels can easily occur inside the greenhouse, which means dehumidification is required and the amount of moisture removed by the dehumidification method should also be determined. In this study, a moisture balance model in the air space of the greenhouse was developed based on the experiment conducted in a commercial tomato greenhouse. The influenced factors such as plant transpiration, soil evaporation, covered condensation, natural or mechanical ventilation, and dehumidification were included in the model. The model can be used to predict the dehumidification needs for a greenhouse. It can also be used to simulate the variation of water vapour stored in the greenhouse. The experiment conducted in the same greenhouse was used to verify the predicted results by the moisture balance model.
Keywords: humidity, greenhouse, moisture balance model, dehumidification
Technical field: Building Systems Engineering
Conference name: CSBE/SCGAB 2015 Annual Conference, Edmonton, AB, 5-8 July 2015.
Session name: Poster
Citation: Han, J., H. Guo, R. Brad, D. Waterer. 2015. Moisture Balance Model for Predicting Dehumidification Requirement for a Tomato Greenhouse Located in a Cold Region. CSBE/SCGAB 2015 Annual Conference, Edmonton, AB, 5-8 July 2015.
Publisher: Canadian Society for Bioengineering
Language 1: en
Rights: Canadian Society for Bioengineering