CFD analysis of personal ventilation with volumetric chemical reactions.(Report): An article from: HVAC & R Research

This digital document is an article from HVAC & R Research, published by American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc. on November 1, 2010. The length of the article is 5658 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available immediately after purchase. You can view it with any web browser.

From the author: This article studies the concentration distribution in the microenvironment of a person and inhalation exposure in a typical office space when modeling first- and second-order reactions. First, wall adsorption of ozone and d-limonene and the resulting volumetric reaction are validated, and 2D computational concentration profiles are compared to the experimental results from Ito (2007b) with reasonable agreement. The validated model is then implemented in a 3D simulation of a typical office space with a seated thermal manikin, floor diffuser, desk, and optional personal ventilation (PV) system. Three cases were modeled: (1) no PV, (2) a PV system consisting of a single round jet, and (3) a novel low-mixing co-flow nozzle that directs fresh air toward the breathing zone (BZ). All concentration distributions showed significant differences compared to the traditional well-mixed assumption. The inhalation exposure was analyzed as an intake fraction (iF) and compared for the three cases. The co-flow nozzle was able to reduce the amount of reaction product inhaled by 5 times compared to a case without PV.

Citation Details
Title: CFD analysis of personal ventilation with volumetric chemical reactions.(Report)
Author: Jackie Russo
Publication:HVAC & R Research (Magazine/Journal)
Date: November 1, 2010
Publisher: American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc.
Volume: 16 Issue: 6 Page: 799(14)

Article Type: Report

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