Thermal comfort assessment model for civil cabin environment

Some parameters, such as cabin pressure and Relative Humidity (RH), in a civil cabin environment, are significantly lower than those at sea level when the civil aircraft is in its cruise conditions at high altitude. The common PMV thermal comfort assessment model is not suit for this environment. Therefore, a Corrected PMV (CPMV) model is adopted to analyze the impact of these two parameters on thermal comfort in a cabin. From the simulations, we can draw conclusions that, within a normal operative range of RH and cabin pressure, the low RH and pressure can lead to a negative deviation and a positive deviation of thermal sensation values, respectively, but their impacts on thermal comfort of passenger are limited. The CPMV model is further applied to assess the thermal comfort of investigated flights.