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Title: Intelligent Residential Ventilation System Designed Based On Ashrae Comfort Charts
Author: Tang-Jen Liu, Ming-Shing Young
Source: 2001 Measurement Science Conference
Year Published: 2001
Abstract: Opening windows is frequently done to refresh the indoor air for the occupants. To maintain the cleanliness and freshness of the indoor air, more air outside is needed. But its high temperature and humidity are harmful to the thermal comfort of the indoor environment. This work is to study how much outdoor air can be allowed to enter the room for the optimum conditioning of the indoor air. The ASHRAE comfort charts indicate the percent of subjects feeling comfortable during various combinations of dry-bulb temperature, humidity, and air movement. A set of mathematical expressions were proposed to model the charts in order to calculate the comfort degree of the outdoor air with its temperature and humidity as two input parameters of this model. The amount of outdoor air allowed to enter the room can be further determined after the calculation of the comfort degree of the outdoor air is accomplished.

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