Sentences with phrase «ventilation rates in»

Consequently, ventilation rates in new houses without supplemental ventilation can be relatively low with a related potential for degraded indoor air quality.

Not exact matches

This spring, an investor closed on the warehouse for $ 30 per square foot, well below the going rate for the area, and started upgrading the power, water, and ventilation systems in a speculative bet that a new marijuana law would spark a wave of demand from growing operations.

In the short term, your body will undergo the following changes: ventilation (respiratory rate) increases in response to a lower amount of oxygen in the blood, blood then becomes more alkaline (meaning less acidic) as you hyperventilate, and this alkaline state in turn signals your body to breathe less than you should in order to get substantial oxygen to your tissueIn the short term, your body will undergo the following changes: ventilation (respiratory rate) increases in response to a lower amount of oxygen in the blood, blood then becomes more alkaline (meaning less acidic) as you hyperventilate, and this alkaline state in turn signals your body to breathe less than you should in order to get substantial oxygen to your tissuein response to a lower amount of oxygen in the blood, blood then becomes more alkaline (meaning less acidic) as you hyperventilate, and this alkaline state in turn signals your body to breathe less than you should in order to get substantial oxygen to your tissuein the blood, blood then becomes more alkaline (meaning less acidic) as you hyperventilate, and this alkaline state in turn signals your body to breathe less than you should in order to get substantial oxygen to your tissuein turn signals your body to breathe less than you should in order to get substantial oxygen to your tissuein order to get substantial oxygen to your tissues.

If the ventilation ductwork serving the classrooms intersects an internal fire resistance rated wall, it will create a potential weakness in it.

Another consequence of poor ventilation in school buildings is high rates of carbon dioxide, which is not a health threat but does indicate poor ventilation and therefore high rates of indoor air pollution.

To repair aging classrooms, ensure student health, safety and achievement and keep pace with technology, upgrade aging plumbing, electrical, lighting, heating / ventilation, safety / security systems, shall this Hawthorne School District measure be adopted to repair, construct, acquire classrooms, sites / equipment, and issue $ 59,000,000 in bonds, at legal rates, levy on average 3 cents / $ 100 assessed value ($ 3,000,000 annually) while bonds are outstanding, require independent audits / oversight, and all money for local schools?»

Extensive data on ventilation rates was collected from more than 150 classrooms in California over two years.

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A ventilation tube is placed in her airway to ensure breathing, and heart rate is monitored.

The ventilation rate was regulated depending on relative humidity of the air inside the cabin with a minimum ventilation below 50 % and maximum ventilation above 80 % relative humidity, rarely reached (only when cooking food or on wake up in the morning).

Mechanical ventilation can «underperform» owing to: a) inadequate design / installation / commissioning impacting on flow rates in part or all of the dwelling; b) occupants turning the ventilation down or off — eg through discomfort, anxiety or not understanding the system.

For those larger than 120 sqm the rate is determined by the 0.3 air changes per hour backstop ventilation rate rather than the number of people living in the house.

In a range of naturally ventilated homes with airtightness ranging from 5 to 20 ach @ 50Pa, winter air exchange rates were estimated to vary between 0.2 and 0.7 ach — and the ventilation rate was not closely related to airtightness, which casts doubt on the long standing assumption that infiltration can be seen as part of the ventilation strategy.2

Concentrations of 54 volatile organic compounds (VOCs) and ventilation rates were measured in four new manufactured houses over 2 - to - 9.5 months following installation and in seven new site - built houses 1 - to - 2 months after completion.

Ventilation: Fränkische Profi Air 250 mechanical ventilation with heat recovery (MVHR) system — rated at 88 % efficiency in Ventilation: Fränkische Profi Air 250 mechanical ventilation with heat recovery (MVHR) system — rated at 88 % efficiency in ventilation with heat recovery (MVHR) system — rated at 88 % efficiency in this house.

We don't get much ventilation air change in crawlspaces — the typical ventilation air change rate in a crawlspace is approximately 1 air change per hour (ach).2 In determining crawlspace surface temperatures we can pretty much ignore the ventilation air change.3 We can't ignore the ventilation air in the moisture balance but we can in the energy balancin crawlspaces — the typical ventilation air change rate in a crawlspace is approximately 1 air change per hour (ach).2 In determining crawlspace surface temperatures we can pretty much ignore the ventilation air change.3 We can't ignore the ventilation air in the moisture balance but we can in the energy balancin a crawlspace is approximately 1 air change per hour (ach).2 In determining crawlspace surface temperatures we can pretty much ignore the ventilation air change.3 We can't ignore the ventilation air in the moisture balance but we can in the energy balancIn determining crawlspace surface temperatures we can pretty much ignore the ventilation air change.3 We can't ignore the ventilation air in the moisture balance but we can in the energy balancin the moisture balance but we can in the energy balancin the energy balance.

As a prerequisite in the LEED for Homes program, a project must «design and install a whole building ventilation system that complies with ASHRAE Standard 62.2 - 2007,» a standard developed by the American Society of Heating, Refrigerating and Air - Conditioning Engineers that details ventilation rates and strategies for healthy homes.

Hall, T.M., T.W.N. Haine, M. Holzer, D.A. LeBel, F. Terenzi, and D.W. Waugh, 2007: Ventilation rates estimated from tracers in the presence of mixing.

Among the suite of circulation models examined here, the largest reduction in atmospheric pCO2 of 44 — 88 ppm occurs in a model where reduced overturning rates of both southern and northern sourced deep waters result in a four-fold increase in the Southern Ocean deep water ventilation age.