ASHRAE_62.1_1_Analysis外文书.pdf

ANSI/ASHRAE Standard 62.1 – 2010, Ventilation for Acceptable Indoor Air Quality - Update, Analysis and Recommendations David S. Dougan and Leonard A. Damiano, EBTRON, Inc. April 2011 BACKGROUND This paper is an updated version of similar ones published for several previous versions of ASHRAE Standard 62.1. Please study the complete standard discussed in this paper and review the bibliography. This descriptive paper should not be considered a substitute for the original and complete document, nor is it a shortcut to compliance with the standard. There are many issues to consider that are not discussed here. ANSI/ASHRAE Standard 62.1 was first published in 1973 as Standard 62, which today continues to outline the minimum ventilation rate requirements intended to provide acceptable indoor air quality for new buildings or those with major renovations. In 2003, the scope of the Standard officially changed and a separate ASHRAE committee was formed to address the specific needs of Low-Rise Residential Buildings. The existing Standard became known as 62.1 and the new residential standard became 62.2. Notwithstanding its numerous revisions since 1973, this standard has been an often misunderstood and misinterpreted document. Because of the rate-based nature of all three sanctioned procedures allowed for compliance (Ventilation Rate, IAQ and Natural Ventilation), this analysis focuses on the needs for reliable intake rate control and the risks included with popular indirect control methods. Design recommendations offered are intended to increase the potential for both predictable compliance and for the operating flexibility to accommodate future changes, while providing the greatest control reliability with the most energy efficient methods. INTRODUCTION This is a brief summary of selected parts of ASHRAE Standard 62.1-2010, Ventilation for Acceptable Indoor Air Quality (IAQ) in Commercial, Institutional, Industrial and High Rise Residential Buildings 1, as it impacts and is