Experimental study on thermal environment in a simulated classroom with different air distribution methods

To evaluate the thermal environment in classrooms, physical measurements were conducted laboratory conditions. The objective of study is to compare performance four typical air distribution methods both heating and cooling modes a mock-up classroom. included corridor-wall grille, displacement ventilation concept using two low-velocity units, ceiling diffuser, perforated duct diffuser. There three designed test condition classroom: summer conditions with full occupancy (heat gain 54 W/m2) partial 40 winter (heating demand 38 W/m2). Based on measured results, wall-grille supply gave high velocities (around 0.4 m/s) occupied zone was least sensitive for different load quite unstable diffuser which caused increased draft risk. During mode, simulated window had an influence However, uniform case. With concept, (below 0.23 rate (less than 20%) acceptable level all cases. some are plumes. Thus, selected classroom should be robust internal seasons. Together ventilation, other appropriate solution classrooms.