Climate chamber

Experimental investigation of frost formation on air to air counter flow heat exchanger in air handling unit and climatic influence on dry, wet, frost operation condition

Submitted by on Thu, 02/06/2020 - 15:38

The work presented in this paper investigates frosting problem on high efficient air to air counter flow heat exchanger. The presented investigation consists of two main activities.  

VAPOR BUFFERING IN A SINGLE ROOM UNDER STEADY STATE EXTERIOR CONDITIONS -COMPARISON BETWEEN SIMULATIONS AND MEASURED RESULTS

Submitted by on Sat, 07/06/2013 - 16:41

In this paper, experiments and simulations for moisture buffering of the gypsum boards is described.The small chamber (4.62 m3) installed the gypsum board on the interior surface was used for theexperiments. This chamber was located in a climate chamber. The ambient condition of the smallchamber was controlled at constant temperature and humidity. In the experiment for the relationshipbetween moisture buffering and ventilation rate, three cases of ventilation rate, i.e. no ventilation, 1.01/h and 5.0 1/h, were investigated.

EXPERIMENT FOR MOISTURE BUFFERING AND EFFECT OF VENTILATION RATE AND VOLUME RATE OF HYDROTHERMAL MATERIALS IN A SINGLE ROOM UNDER STEADY STATE EXTERIOR CONDITIONS

Submitted by on Sat, 07/06/2013 - 16:41

In this paper, the experiment for moisture buffering and effect of ventilation rate and volume rate of thehygrothermal materials is described. The objective of the experiment is to make clear the relationshipsbetween the moisture buffering effect and, the ventilation and volume rates of the hygrothermalmaterials. In the experiment, a layer of gypsum board as hygrothermal materials is placed on theinterior surface of the test chamber (4.60 m3). This chamber is located in the climate room which cancontrol constant temperature and humidity level (20oC and 50%rh).