Industry News




04/11/2006

10 Addenda Proposed to ASHRAE 90.1 Energy Standard

Changes are currently open for public comment

 

Fan power limitation requirements for complex HVAC systems, such as those in hospitals and laboratories, would be improved under a proposed change to ASHRAE’s energy standard. Eight proposed addenda to ANSI/ASHRAE/IESNA Standard 90.1-2004, Energy Standard for Buildings Except Low-Rise Residential Buildings, are open for public comment until May 1, while two are available until April 16. Included is addendum ac, which would expand application coverage to address complex mechanical systems.

“The standard would more effectively address static pressure associated with complex HVAC systems requiring specialized equipment in return air or exhaust air systems, such as those in hospitals,” says Larry Kouma, who heads the group that oversaw the proposed addendum. “Appropriate allowances for discharge and return air flow treatment equipment would be allowed, enabling a clear avenue for these systems to demonstrate compliance using the prescriptive compliance methods of the standard. Or, if required, users can still use the standard’s energy cost budget method.”

The addendum also improves compliance consistency and strengthens stringency for simple systems with an easy-to-use format and structure. Other proposed addenda open for comment until May 1 are:

  • Addendum aa adds definitions for lighting-related terms.
  • Addendum ab clarifies which sections should be referenced in Section 11 and Appendix G.
  • Addendum ae changes Section 11 and Appendix G to clarify the way lighting power is to be modeled.
  • Addendum ai revises the lighting power requirements to eliminate confusion.
  • Addendum aj adds the ASTM test method E 1980 - Standard Practice for Calculating Solar Reflectance Index of Horizontal and Low-Sloped Opaque Surfaces.
  • Addendum al clarifies the terminology for metal building roofs and the required assembly U-factors for such roofs.
  • Addendum am allows minimum variable air volume turndown to be limited by the minimum ventilation requirement for a zone.

Two proposed addenda to Standard 90.1 are open for review until April 16. They are:

  • Addendum ag clarifies that only HVAC fans that provide outdoor air for ventilation need to be modeled as running continuously.
  • Addendum ah clarifies the budget building model heat recovery requirement by stating that condenser heat recovery must be included in the budget building model if it is a prescriptive requirement for the building.

 

To obtain drafts of (or comment on) proposed addenda aa, ab, ac, ae, ag, ah, ai, aj, al, and am, visit (www.ashrae.org/standards). The standard provides minimum requirements for the energy-efficient design of buildings except low-rise residential buildings.

 

This information was reprinted with permission from the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE), an international organization of 55,000 persons. Its sole objective is to advance through research, standards writing, publishing, and continuing education the arts and sciences of heating, ventilation, air-conditioning, and refrigeration (HVAC&R) to serve humanity and promote a sustainable world. To find out more, visit (www.ashrae.org).

 

Xcel Energy’s Data Center Efficiency program can help data centers and large-scale IT operations improve reliability and energy efficiency.


Visit our website today to learn about the design flexibility of a Morton building and the endless possibilities of partnering with our designBUILD team.


Wood construction is both cost and energy efficient. Check out Morton Buildings and our designBUILD team online today to discover all the benefits of post-frame construction.

When choosing a metal-clad building for your next construction project, consider Morton Buildings, Inc., and their designBUILD team, we’ll make your dream a reality. 

We Can Help You Reduce Energy by 30%

Our mission is to help our customers manage their buildings' energy costs, improve reliability, and enhance performance while having a positive impact on the environment.
CLICK HERE to find out how.

Xcel Energy’s Data Center Efficiency program can help data centers and large-scale IT operations improve reliability and energy efficiency.


Visit our website today to learn about the design flexibility of a Morton building and the endless possibilities of partnering with our designBUILD team.


Wood construction is both cost and energy efficient. Check out Morton Buildings and our designBUILD team online today to discover all the benefits of post-frame construction.

When choosing a metal-clad building for your next construction project, consider Morton Buildings, Inc., and their designBUILD team, we’ll make your dream a reality. 

We Can Help You Reduce Energy by 30%

Our mission is to help our customers manage their buildings' energy costs, improve reliability, and enhance performance while having a positive impact on the environment.
CLICK HERE to find out how.


 
comments powered by Disqus
08/28/2015

Temperatures reach highest point since 1880.

08/27/2015

Large improvements drive water conservation on West Coast.

08/26/2015

Data breaches becoming more common.

08/25/2015

Research shows link between extreme weather events and long power disruptions.

08/24/2015

Specifications to improve wall resiliency.

08/21/2015

New resource can help FMs create scope of custodial work.

08/20/2015

Rule created to stem Legionnaires’ disease outbreak.

08/19/2015

Portable devices encourage sedentary workers to exercise while seated.

08/18/2015

PACE program to drive building improvements.

08/17/2015

Survey shows management systems can streamline work order process.

08/14/2015

Tool will help schools improve air quality.

08/13/2015

Proposed ASHRAE rule to improve communication about energy consumption, forecasts.

08/12/2015

Installations rise as electricity costs drop to an all-time low.

08/11/2015

Linear, low-bay/high-bay LEDs spotlighted as best choices for commercial retrofits.

08/10/2015

Wind, solar set for big increases.

08/07/2015

New requirement will cut food waste.

08/06/2015

ICC, ASHRAE will streamline compliance path for IgCC and Standard 189.1.

08/05/2015

Benefits inspire positive health changes for workers.

08/04/2015

New program from the EPA will cut GHG emissions.

08/03/2015

LED, smart control adoption will help FMs meet energy goals.

Page 1 of 56
FirstPrevious[1]2345678910NextLast

Sponsored Links