CLIMATE DISTRIBUTION IN A FAN AND PAD EVAPORATIVE COOLED GREENHOUSE: A CFD APPROACH

T. Bartzanas, D. Fidaros, C. Baxevanou , C. Kittas
Climate distribution in an evaporative (fan and pad) cooled greenhouse was numerically assessed with the use of a computational fluids dynamic model. For the simulations needs a 3D model was built representing a typical Mediterranean greenhouse (plastic tunnel with arc walls) with a tomato crop, 1.5 m high. The numerical model was first validated against experimental data and then it was used for case studies aiming to improve the design of evaporative cooling systems. In general a good agreement was found between simulated and measured results with their differences not exceed the limit of (4%). An increase of 16.5% of fan airflow rate, leads to a 18% decrease of inside air temperature and to a 22% decrease of air relative humidity. In parallel mean air velocity inside the greenhouse was increased by 15%.
Bartzanas, T., Fidaros, D., Baxevanou , C. and Kittas, C. (2013). CLIMATE DISTRIBUTION IN A FAN AND PAD EVAPORATIVE COOLED GREENHOUSE: A CFD APPROACH. Acta Hortic. 1008, 185-190
DOI: 10.17660/ActaHortic.2013.1008.24
https://doi.org/10.17660/ActaHortic.2013.1008.24
air speed profiles, air temperature, CFD modelling, greenhouse climate heterogeneity, relative humidity
English

Acta Horticulturae