Control Theory and Application
ASHRAE Technical Committee 1.4

Meeting Documents

Download documents from previous committee meetings below according to the appropriate society year. ASHRAE's society year begins on July 1 and ends June 30.

Tip: The following section can be edited by the webmaster as needed. It does not have to be about Whitepapers. You can edit that to be anything. To add, delete or reposition sections of the accordion, use the concentric arrows button in the editing toolbar at the top. When typing or inserting text into an accordion and there is more than one paragraph, you MUST use "shift + enter" between paragraphs. Be sure that you do not accidentally just use the "enter" key to separate the paragraphs. It will look OK but after you publish the page, the text after the 'enter' may no longer be editable.

Other Publications

Additional documents produced by the TC may be available for direct download or for purchase through the ASHRAE Bookstore, as noted below.

Research

ASHRAE members have free access to research project final reports. Non-ASHRAE members can purchase these research reports for $30 per article from the ASHRAE On-line BookStore found at this link.

The following TC 1.4 projects have been recently completed.

1455-RP: Advanced Control Systems for HVAC Systems – Phase 1 Air Distribution and Terminal Systems: This research project is intended to be the first of two phases: Phase I: Air Distribution and Terminal Systems and Phase II: Central Plants and Hydronic Systems. This first phase will include developing comprehensive optimized control sequences for the following common air distribution and terminal subsystems: Generic thermal zones, Single zone systems, Variable air volume terminal units, and Variable air volume systems. Logic diagrams will be developed for the sequences so that the logic is not vague, as is inherent in any written sequence. Sequences will be tested and debugged using simulation. Future research projects will be implemented to test the sequences in real buildings.
Once the research project is complete, the sequences and flow diagrams will be proposed as appendices to Guideline 13 via the addenda process. This will allow them to be publicly reviewed. Including the sequences in Guideline 13 will also allow them to be maintained over time, such as fixing bugs and incorporating new energy saving or diagnostic sequences via addenda, and also provides a good way for them to be disseminated − control sequences and control specifications go hand in hand.

1597-RP: Stochastic Control Optimization of Mixed-Mode Buildings: The primary purpose of heating, ventilating, and air-conditioning systems is to provide acceptable indoor air quality and thermal comfort. Mixed-mode ventilation systems provide good indoor air quality and thermal climate using natural ventilation whenever the outdoor weather conditions are favorable, but revert to mechanical systems for HVAC whenever external conditions are too harsh. A mixed-mode building should switch between these two modes of operation according to seasonal and diurnal variations in the indoor thermal conditions and the outdoor environment. Such a building requires an intelligent control system that can switch automatically between natural and mechanical modes in such a way that minimizes energy consumption without compromising indoor air quality or the thermal comfort of its occupants.

Presentations

Presentations from a 2006 seminar "Using DDC Controls to Manage Resources for Green Buildings" may be downloaded.
     > Brian Allen: Demand Side DDC Ventilation Control in Green Laboratory Buildings
     > Larry Fisher: Control Contractor's Responsibility in LEED Certification
     > Linda McDaid: Using Building Automation to Assist in Attaining LEED Certification

©2024 This website describes the activities of the ASHRAE Technical Committee 1.4, Control Theory and Application. It does not present official positions of the Society nor reflect Society policy. ASHRAE is not responsible for this site’s content. To learn more about ASHRAE activities on an international level, visit the ASHRAE home page at https://www.ashrae.org. Comments? Contact the TC 01.04 chair at TC0104@ashrae.net . Login

Control Theory and Application ASHRAE Technical Committee 1.4

Meeting Documents

2020-21

2019-20

2018-19

2017-18

2016-17

2015-16

2014-15

2013-14

2012-13

2010-11

Other Publications

Research

Presentations

Control Theory and Application
ASHRAE Technical Committee 1.4