Performance of VAV fan powered terminal units: an evaluation of operational control strategies for series vs. parallel units.(Report): An article from: ASHRAE Transactions
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ISBN / ASINB004SF5SDW
ISBN-13978B004SF5SD3
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This digital document is an article from ASHRAE Transactions, published by American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc. on July 1, 2010. The length of the article is 3726 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: Previous papers under RP 1292 presented engineering models and experimental verification of those models for series and parallel VAV fan powered terminal units. Terminal units with 8 in. (203 mm) and 12 in. (304 mm) primary air inlets from three different manufacturers were evaluated under this research project. This paper presents the results from the research in terms of operational control strategies for series vs. parallel fan powered terminal units. Each system type was operated in a simulation that varied geographic location in five regions of the United States and under several different control strategies. Results show that, depending on system loads, system control, and operational settings, the VAV control strategy can have a significant impact on operations, comfort conditions, and energy consumption. Conventional control strategies are likely going to lead to underperforming systems and a resulting increase in energy consumption. Improvements to conventional control strategies are also presented and discussed in this paper.
Citation Details
Title: Performance of VAV fan powered terminal units: an evaluation of operational control strategies for series vs. parallel units.(Report)
Author: John Bryant
Publication:ASHRAE Transactions (Magazine/Journal)
Date: July 1, 2010
Publisher: American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc.
Volume: 116 Issue: 2 Page: 184(8)
Article Type: Report
Distributed by Gale, a part of Cengage Learning
From the author: Previous papers under RP 1292 presented engineering models and experimental verification of those models for series and parallel VAV fan powered terminal units. Terminal units with 8 in. (203 mm) and 12 in. (304 mm) primary air inlets from three different manufacturers were evaluated under this research project. This paper presents the results from the research in terms of operational control strategies for series vs. parallel fan powered terminal units. Each system type was operated in a simulation that varied geographic location in five regions of the United States and under several different control strategies. Results show that, depending on system loads, system control, and operational settings, the VAV control strategy can have a significant impact on operations, comfort conditions, and energy consumption. Conventional control strategies are likely going to lead to underperforming systems and a resulting increase in energy consumption. Improvements to conventional control strategies are also presented and discussed in this paper.
Citation Details
Title: Performance of VAV fan powered terminal units: an evaluation of operational control strategies for series vs. parallel units.(Report)
Author: John Bryant
Publication:ASHRAE Transactions (Magazine/Journal)
Date: July 1, 2010
Publisher: American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc.
Volume: 116 Issue: 2 Page: 184(8)
Article Type: Report
Distributed by Gale, a part of Cengage Learning
