Mechanical systems Of Optical and nursing room
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Date
2011
Authors
Ahmad Adel Ahmad Istatieh
Mahmoud Rashad Haseba
Mohamad Atef Abuhatab
Ali Amad Qadous
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Abstract
Abstract: The goal for a HVAC (Heating, Ventilation and Air Conditioning) system is to provide proper air flow, heating, and cooling to each room. In this process HVAC systems can provide reduce air infiltration and maintain pressure relationships between spaces. In HVAC Industries there are so many standard organizations such as ASHRAE, SMACNA, ACCA, Uniform Mechanical Code, International Mechanical Code, and AMCA have been established to support the industry and encourage high standards and achievement. In HVAC System, Ventilating is the process of replacing air in any space to control temperature or remove smoke, heat, dust and airborne bacteria. Ventilation includes both the exchange of air to the outside as well as circulation of air within the building. It is one of the most important factors for maintaining acceptable indoor air quality in buildings. All occupied buildings require a supply of outdoor air. Depending on Outdoor conditions, the air may need to be heated or cooled before it is distributed into the occupied space. As outdoor air is drawn into the building, indoor air is exhausted or allowed to escape, thus removing air contaminants. There are different types of standard heating process in HVAC system design. Central heating is often used in cold climates to heat residential houses and commercial buildings. Heating can also be provided from electric, or resistance heating using a filament that becomes hot when electricity is caused to pass through it. Air conditioning and refrigeration are provided through the removal of heat, An air conditioning system, or a standalone air conditioner, provides cooling, ventilation, and humidity control for all or part of a house or building.