buildings in the United States meet net-zero standards, according to a study released yesterday by the New Buildings Institute and the Zero Energy Commercial Building Consortium.” Ref: http://www.scientificamerican.com/article.cfm?id=net-zero-energy-buildings-in-us 1. Reduce energy consumption (EUI), carbon emissions and operating costs of buildings:
function (e.g. student performance in a school or patient recovery in healthcare). ASHRAE Standard 62.1 - Section 5.1 Natural Ventilation: Naturally ventilated spaces shall be permanently open to and within 8m (25 ft) of operable wall or roof openings to the outdoors. The opening area of which is a minimum of 4% of the net occupiable floor area. Where interior spaces without direct openings to the outdoors are ventilated through the adjoining rooms, the opening between rooms shall have a free area of 8% of the interior room, nor less than 25 sq.ft (2.3 m2). Why Integrate MMV Systems
Operable Windows Control Variables 1. Internal temperature above 72°F AND external temperature above 60°F. 2. Internal temperature above 72°F AND external temperature range above 60°F and below 77°F. 3. Internal temperature above 72°F OR CO2 level above 1200 ppm. 4. Internal temperature above 72°F OR CO2 level above 1200 ppm; AND external temperature range above 60°F and below 77°F.
• Consider the negatives: noise, contamination, security & condensation • Study the climate and use accurate weather data • Include dynamic infiltration • Appropriate Loads Analysis • CIBSE AM10 & AM13! • Commissioning is essential for successful MMV