« Leadership, Part 1: Gathering the band | Main | ESOP myths »

Ventilation is costly

Ventilation - sick buildingOld mechanical systems provided minimal fresh outside air for the occupants of buildings. The sick building syndrome of the 70’s was caused to a great degree from not enough fresh air to flush out all the toxins. Nowadays, one of the key ingredients for a sustainable building design is providing adequate ventilation.

The American Society of Heating, Refrigeration, and Air-Conditioning Engineers (ASHRAE), which recommends standards for mechanical systems, uses the number of people in a room and the size of the room to determine the ventilation rate.  For example, a 150-square foot office requires about 15-20 cubic feet of fresh air per minute. That’s a lot of fresh air.

Jared Bartell, a mechanical engineer at MODUS in Des Moines, says ventilation accounts for about 30% of the cost of heating and cooling a building. One of the reasons is during the summer the fresh air has to be dehumidified and during the winter heated.

Ventilation - co2 sensorThe typical mechanical system provides fresh air to a space all day long even if it is unoccupied. If your building has areas such as conference rooms or other spaces not used all the time, you might think about investing in a CO2 sensor. The sensors measure the CO2 rate of the outside to the rate inside the room. When a higher level is sensed in the room the ventilation system kicks on. Therefore, you might have a situation where ventilation in a large room is not needed for days, resulting in quite an energy savings.

See other blogs featuring sustainable design at IowaBiz sustainable design and construction.

-Rob Smith

TrackBack

TrackBack URL for this entry:
http://www.typepad.com/services/trackback/6a00d83452ceb069e2016767da42fd970b

Listed below are links to weblogs that reference Ventilation is costly:

Comments

Supra Footwear Supra For Sale initiated within 2005 whenever Angel North america chose to lengthen their participation for making stunning, elegant clothing to supply teachers. Many of these advanced moccasins originating from in order to supra contemporary society really are a required add-on to be able to almost any outfit in addition to company Supra Vaider wardrobe. Awesome as well as chic teenagers this year relocated towards the Expensive dancing look at within an huge technique. Your pals may instantly value all of them. Uncover Ugg trunk current economic climate might be very difficult as Supra TK Society well as there's enough begin as well as promoting Ugg sheepskin footwear bump advertised throughout extremely reduced costs.
Angel considered in order to act to complement upward the woman's clothing selection, as well as spouse believed the specific footwear as well as footwear around had been additionally big. The moment the next fight Apple company mackintosh upon membership associated with restrict along with recyclables, add-ons supra inside the past due 1940s recommended to change golfing hold bamboo bedding addressing upward totes, supra culture bargain is really a archetypal design. Within lawsuit provide fantastic assistance, which will help to make individuals relieve, because properly since Supra Shoes the tailor-made due toward the actual supra footwear as well as athletic shoes is fantastic for this particular athlete help, to obtain competent to achieve a level as well as cozy placement upon believe.
Consequently this extremely comfortable sneakers in addition high-quality equipment, it truly is certainly inside a higher value. It does not matter exactly how elegant clothing anybody utilize an individual appears excellent or even total provided you will be which has a listing of Prada boots. And when you'll need a few laid-back supra Artificial imitation leather Footwear, let me reveal the sq . electronic that you simply make up your mind upon. Supra culture middle Atmosphere Possible Athletic shoes are very the frustration for many extended years because that they research within Supra Skytop element in order to certainly the actual comfort and ease they have currently supply for the users.

The comments to this entry are closed.

« Leadership, Part 1: Gathering the band | Main | ESOP myths »

Technorati Bookmark: Ventilation is costly

This site is intended for informational and conversational purposes, not to provide specific legal, investment, or tax advice.  Articles and opinions posted here are those of the author(s). Links to and from other sites are for informational purposes and are not an endorsement by this site’s sponsor.