Big C Di An (Binh Duong) Supermarket is a typical construction of energy saving and efficient use.
If good planning, construction and operation are in place, we can save 30% of the power demand in the building. This is a small number that contributes significantly to urban development.
The national technical standard for energy efficient construction works specifies the technical requirements that must be complied with when designing, constructing or renovating civil works (offices, Hotel, hospital, school, commercial, service apartment) with a total floor area of 2,500 m² or more. The provisions of this standard apply to such parts as: cover covers works; Ventilation and air conditioning systems; Lighting systems; Other electrical equipment (electric motors, hot water supply).
The standard also specifies that the technical specifications for the cover cover only apply to air-conditioned spaces. Air-conditioned space is the closed space inside the building, cooled with output power greater than 15 W / m² of floor use; Or heated with output power greater than 15 W / m² of floor use.
Technical regulations on ventilation and air conditioning show that natural ventilation means that the area of air vents or windows that open on the walls or roofs shall not be less than 5% of the floor area. . For condominiums, the area of the windows should be no less than 10% of the floor area of the room.
Natural ventilation or combined with mechanical ventilation of the garage must meet the requirements of QCXDVN 05: 2008 / BXD.
Ventilation of escalators must comply with the provisions of QCVN 06: 2010 / BXD and must have automatic control equipment, allow to close under normal use conditions and open in case of fire and explosion. . All ventilation, ventilation equipment in the building must have automatic control equipment when there is no need to use. Air blowers with motors with capacities greater than 0.56 kW must have an automatic control device which allows the fan to be turned off when there is no need to use it.
For air conditioning systems, air conditioners and chillers must have a minimum COP performance index at standard rating conditions. An automatic timer or device must be installed or deactivated for a specified period of time or according to the settings for Chiller, hot water, cooling tower fans, pumps of larger capacity. Or 5 horsepower (3.7 kW). Fan motors of ventilation and air conditioning systems with a capacity greater than or equal to 5 horsepower (3.7 kW) must have a FEG (Fan Efficiency Grade) efficiency rating greater than 67 when calibrated according to standard. AMCA 205. The insulation material and thickness for the refrigerant piping, cold water pipes, supply pipes and wind turbines must be designed, installed and tested in accordance with the selected technical standard for works.
Lighting systems are also specified in detail such as the natural lighting specified in the study rooms, classrooms, library reading rooms, artificial illumination continuously adjustable from 100% to below 15% full light and must be able to turn off all lights. The lighting control requirements for natural lighting areas do not apply to medical facilities, apartments or buildings with special use requirements.
Artificial lighting requires the minimum illumination requirements in homes and public housing to be compliant with National Technical Standard QCVN 12: 2014 / BXD. In particular, the lighting control is specified for automatically turning off the illumination device automatically turn off the light when no need to use must be designed and installed for areas not larger than 2,500 M2 and not more than one floor floor. Each automatic lighting control device is designed and installed on an area of use no larger than 250 m² for each area up to 1,000 m² in area and no more than 1,000 m2 in areas with areas larger than 1,000 m².
The indoor garage must have an illuminator that allows at least 30% of the illumination capacity of each light source to be reduced when there is no activity in the illuminated area.
For lighting sources within 6 meters of outside walls, doors and glass walls with WWR ≥ 40%, there must be a facility that controls the reduction of light output in the presence of natural light.
According to experts, strict adherence to the provisions of this Code in the design and operation of the works will contribute to saving total energy consumption from 14% to 36% in construction works. . In particular, hospitals and residential areas are the most energy-saving objects.
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