In a facility, mechanical and ventilation systems have a significant effect on the health, comfort, and productivity of occupants. Improper design lead to sick buildings -- Issues like user discomfort, improper ventilation, and poor indoor air quality are linked to HVAC system design and operation. and can be improved by better mechanical and ventilation systems.
In addition to proper design and selection of equipment, It is also essential to implement well-thought-out commissioning processes and routine preventative maintenance programs.
Mechanical system accounts for a significant amount of energy consumption in a facility. According to DOE HVAC accounts for 40% to 60% of the energy used in U.S. commercial and residential buildings. So design of more energy-efficient mechanical systems represents a great opportunity for energy savings.
Energy Consumption by Household AppliancesAccording to U.S. Department of Energy -- A Consumers Guide to Energy Efficiency and Renewable Energy --
In a typical U.S. home, the appliances and home electronics are responsible for about 20 percent of the energy bill.
For Energy Consumption by appliance -- see Typical Wattages of Various Appliances --Alphabetical Listing by Appliance Name -- in the section on appliances-fixtures.
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