New LBNL Resource: Steps to Improving Ventilation in Existing Homes

http://resaveguide.lbl.gov/

Context: This work was done under RESAVE, a California Energy Commission (CEC) Public Interest Energy Research (PIER) Program. The overall goal of this program is to facilitate the reduction of energy and peak power spent in homes to condition air that enters from outdoors. Infiltration, the uncontrolled exchange of air through leaks and penetrations, typically accounts for over one-third of the total space conditioning energy. New homes typically spend the same fraction of energy on mechanical ventilation. This program aims to reduce ventilation and infiltration related peak load and energy costs by 25-50%.

This program will provide important research and technical tools to advance the strategy of "Build Tight, Ventilate Right". This approach combines high-quality building construction (low leakage, low emitting materials, etc.) with optimized ventilation systems to maximize energy efficiency while maintaining acceptable indoor air quality (IAQ). The program will develop new technologies and recommendations for improvements to existing technologies. The involvement of industrial partners in the program will ensure that these technological developments find their way into California homes. The program will leverage best practices and leading-edge building and ventilation technologies from California, the United States, Japan and Europe. A specific goal will be the optimization of hybrid, passive and active ventilation systems to facilitate their adoption in California homes. In addition to technology development, this program will make recommendations for changes to California State Energy Code for buildings (Title 24) together with providing the diagnostic and commissioning tools necessary to ensure code compliance. These tools will also help in market transformation by demonstrating the performance and value of good ventilation systems to consumers, contractors, building managers and other potential decision makers and beneficiaries.

Views: 434

Reply to This

Replies to This Discussion

just wanted to thank you for the information I have downloaded the pdf

New technology will continue to bend the curve on these models. Vermont Energy Investment Corp (VEIC), Northwest Energy Efficiency Alliance (NEEA)  and others are developing these models, with HRVs/ERVs operating at .3 watts/cfm and with 90% ASE efficiencies as the basis for dramatically increased energy efficiency, comfort and IAQ. Additionally, NEEA has commissioned a residential ventilation study that should shed some light on the efficacy of ventilation schemes in various levels of tightness in these homes. I think that this will be one of the most significant conversations with regards to DER, NZE, retrofit and other programs in coming months. 

Washington state is taking commentary on their adoption of new codes, and this subject is the one that is garnering the most attention right now as well. The NEEA study was prematurely referenced in a recent blog, as the study is just getting under way, and "results" were reported already. 

LBL and other organizations studying this issue will be critical to avoiding unintended consequences that often follow new code requirement when the science has not yet caught up with the code. We can learn a lot from Europe, where they went down this road already, and in specific markets they made the same mistakes that we seem determined to make as well. 

RSS

Photos

Loading…
  • Add Photos
  • View All

Latest Activity

Profile IconBrian Coverstone, Charlie Ouellette, Karin Haerter and 1 more joined Home Energy Pros
6 hours ago
Juan added a discussion to the group Energy Auditing Equipment for Sale, Trade or to Purchase
Thumbnail

Need Energy conservatory Blower door 3 + DG-700

Hello thanks for taking the time to read this post. I am currently looking for a blower door…See More
15 hours ago
Juan joined allen p tanner's group
Thumbnail

Energy Auditing Equipment for Sale, Trade or to Purchase

Discuss the pros and cons of the equipment you are interested in prior to purchase. Post equipment…See More
15 hours ago
Caoimhin P Connell replied to Rodney Fox's discussion Radon: Truth vs. Myth
"Good morning, Mr. Cullen – As I mentioned in another post – for the purposes under…"
17 hours ago
tedkidd replied to Rodney Fox's discussion Radon: Truth vs. Myth
"If putting the house under positive pressure using fresh air helps mitigate not just radon, but…"
18 hours ago
Rich Manning replied to Rodney Fox's discussion Radon: Truth vs. Myth
"Tell them the truth as you know it, and back it up with the facts!!"
18 hours ago
Rich Manning replied to Charles Ryan Weitzel's discussion Oil Fired Boiler Being Used as the Heating Source in Two Air Handlers of a Historic Home
"Yes, its a Hydro-air system. It uses one boiler to supply hot water to the coil in the supply side…"
18 hours ago
tedkidd replied to Rodney Fox's discussion Radon: Truth vs. Myth
";) I love uncovering absuedities... Funny how creatively and vehemently people will argue against…"
18 hours ago

© 2016   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service