بواسطة في كانون الثاني 3, 2025
Within the BSRIA Application Guide, Section 4.2 explains the design procedure and Section 5.2 gives worked examples for buildings with a range of air tightness specifications. BSRIA Application Guide 2/97. Air Curtains - Commercial Applications. Air curtains consume electrical energy during their operation, but can be used for net energy savings by reducing the heat transfer (via mass transfer when air mixes across the threshold) between two spaces. However, they should not be seen as an altern...
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بواسطة في كانون الثاني 3, 2025
Icynene contains no ozone-depleting substances such as CFCs, HFC's, HCFC's. Icynene contains volatile organic compounds (VOCs). Some rock wool contains recycled glass. Rock and slag wool. Sheep's wool insulation has a long lifetime due to the natural crimp in the fibre, endurance testing has shown it has a life expectancy of over 100 years. There are two types of cork, the pure cork, which is preferable due to its natural bonding properties, and the agglomeration cork. Many types are made of re...
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بواسطة في كانون الثاني 3, 2025
1993 - Second site established at Crowthorne giving 50% more space. The second method is by simply using an induced draught fan (ID fan) which removes flue gases from the furnace and forces the exhaust gas up the stack. Since the heated flue gas is less dense than the ambient air surrounding the boiler, the flue gas rises in the chimney, pulling denser, fresh air into the combustion chamber. The steam jet oriented in the direction of flue gas flow induces flue gases into the stack and allows fo...
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