Thermal model and experimental validation of humidifier systems as commissioning tools in HVAC systems.(heating, ventilation and air conditioning)(Report): An article from: HVAC & R Research

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From the author: This paper presents the results of an experimental study performed to obtain a simplified model applicable to two adiabatic humidification systems: wetted wires and centrifugal atomizing. The aims of this study are to provide a model to be used in situ as a diagnosis tool in the commissioning of air-conditioning systems, and to develop a comparison between "wet" and "thermal" effectiveness methodologies that also can be useful for the commissioning process. The model is able to predict the exhaust dry-air temperature, exhaust humidity ratio, and the humidifier effectiveness by using as inputs the supply-air temperature and relative humidity as well as the air and water mass flow rates. Simplicity and accuracy are the crucial factors. A series of tests are performed in order to validate the model.

Citation Details
Title: Thermal model and experimental validation of humidifier systems as commissioning tools in HVAC systems.(heating, ventilation and air conditioning)(Report)
Author: Nestor Fonseca Diaz
Publication: HVAC & R Research (Magazine/Journal)
Date: November 1, 2009
Publisher: American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc.
Volume: 15 Issue: 6 Page: 1045(19)

Article Type: Report

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Dry winter conditions brings an avalanche of side effects. When the air cools, it is the ability to retain moisture falls in fact. By adding a humidifier, you are able to compensate this natural drop in humidity. Air moistened carries a range of benefits that help relieve conditions often caused by the cold, dry air.

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Thus, while a humidifier may resolve many irritations of winter, too much moisture can also carry negative side effects. This underscores the importance of choosing a humidifier that can create and maintain an optimal level of humidity. Mayo Clinic States, "When buying a humidifier, consider purchasing one with built-in hygrometer (humidity) which keeps humidity in a healthy range."

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