HVAC Breaking News

May 20, 2005: ASHRAE Proposes Load Calculation Standard For Buildings

May 20, 2005
/ Print / Reprints /
ShareMore
/ Text Size+
ATLANTA - The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) notes that there are multiple heating and cooling load calculation methods to determine system and equipment sizes for buildings of varying size, materials, and complexity. A proposed standard from ASHRAE aims to establish minimum requirements for the methods used to determine peak heating and cooling loads and the input of data into methods, according to Chris Wilkins, chair of the committee writing the standard.

ASHRAE Standard 183P, "Methods and Procedures for Performing Peak Heating and Cooling Load Calculations in Buildings Except Low-Rise Residential Buildings," is open for public comment. It opened for comment on May 6.

"The biggest challenge is allowing for enough flexibility that an engineer can choose the appropriate tool (method) for calculating the load while at the same time being strict enough that an appropriate level of accuracy is attained for all methods," Wilkins said.

Wilkins further explained that "Standard 183P does not dictate a particular method or program but does establish a minimum level of care that would apply to any method. The standard draws information from the Society's handbook and publications, and assigned criteria is based on accepted practices for determining peak loads."

ASHRAE Standard 183P primarily addresses methods for determining the peak cooling load, both manual and otherwise. It requires that calculations for cooling load be performed for appropriate months and times of the day and sets criteria for the use of weather data, external heat gains from fenestration, opaque building envelope and infiltration, and internal heat gains.

"The ultimate goal of the standard is establish the criteria of an appropriate calculation process that will result in an accurate estimate of the air conditioning and heating load in a building," he said. "This load is ultimately the basis of the selection and sizing of the systems and equipment that are required to accomplish inherent psychrometric processes, such as conditioning for outside air, reheat, dehumidification, and humidification.

Wilkins said the standard will have a significant impact on ASHRAE members and the HVAC industry as a whole.

He noted that the membership on the committee includes design engineers, manufacturers, academia, energy efficiency experts, code enforcement engineers, and representatives from other societies.

"The balance on the committee allowed us to fulfill our responsibility to the industry and produce a balanced standard," he said.

Drafts of ASHRAE's proposed standards and guidelines are available only during their public review periods. To obtain an electronic draft version of ASHRAE Standard 183P during the comment period, visit the "Standards for Public Review" shortcut at www.ashrae.org.

Publication date: 05/16/2005

Did you enjoy this article? Click here to subscribe to The NEWS Magazine

You must login or register in order to post a comment.

Multimedia

Videos

Image Galleries

2014 MCAA Annual Convention

Scenes from the 2014 MCAA Annual Convention in Scottsdale, Ariz.

Podcasts

NEWSmakers: Julian Scadden

Training is an ongoing process. Julian will discuss how you can generate maximum return on time and energy invested training by following a three part process. Listen to this podcast to get expert tips on training, tracking and follow up. 

More Podcasts

THE MAGAZINE

ACHRNEWS

NEWS 04-14-14 cover

2014 April 14

Check out the weekly edition of The NEWS today!

Table Of Contents Subscribe

SERVICE CALLS POLL

Which statement on service calls best applies to your business?
View Results Poll Archive

HVACR INDUSTRY STORE

plumbing-hvac.gif
2014 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

More Products

Clear Seas Research

 

Clear Seas ResearchWith access to over one million professionals and more than 60 industry-specific publications, Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

DON'T MISS A THING

Magazine image
 
Register today for complete access to ACHRNews.com. Get full access to the latest features, Extra Edition, and more.

STAY CONNECTED

facebook icontwitter iconyoutube iconLinkedIn i con