For energy efficient buildings, the size of the building should be large or small

It depends on the purpose of your building. If the public building is large, there must be strict energy-saving building standards. If it is a private house, then it is advisable to be slightly smaller, and the private house should consider making full use of solar energy.

The shape is a rectangle in the east-west direction, within 10 degrees from east to west, the south window is as large as possible, and it is better not to leave a window in the north-west direction. The insulation of walls and doors and windows must be done.

It's hard to have a standard answer to this.

For example, under the unit area, the cooling capacity of the air conditioner is the same, then the average number of common external walls of a single-storey 100-square-meter and single-storey 1000-square-meter buildings is not the same, in other words, a single-storey 100-square-meter house will occupy more exterior wall area, and the larger the exterior wall area, the greater the energy loss, and the less energy-saving. In this case, the building should be large rather than small.

But on the other hand, the larger the exterior wall area of the building, the larger the windows, the more natural lighting, the less electricity is used, and in some areas, the more windows, the better the automatic ventilation, the less air conditioning is used, in this case, in terms of energy saving, the building should be small rather than large.

So, it's hard to have a standard answer.

Of course, the smaller the better, because the numerator of the body shape coefficient is the outer epidermal area, so in terms of energy saving, of course, it is better to be small, so that the convex and concave parts are small, and the natural thermal bridge parts are less

If you think about energy saving, the smaller, the better.

Answer]: B According to the requirements of the "Energy Conservation Design Standards for Civil Buildings", the shape coefficient of the building should be below and below.

For buildings, the main ways to save energy are: strengthening the thermal insulation of the envelope structure.

Building energy conservation specifically refers to the implementation of energy-saving standards, the use of energy-saving technologies, processes, equipment, materials and products in the process of planning, design, new construction (reconstruction, expansion), renovation and use of buildings, the use of energy-saving technologies, processes, equipment, materials and products, to improve thermal insulation performance and the efficiency of heating, air conditioning, refrigeration and heating systems, to strengthen the operation and management of building energy systems, and to use renewable energy.

On the premise of ensuring the quality of the indoor thermal environment, increase the thermal resistance of indoor and outdoor energy exchange, so as to reduce the energy consumption of heating systems, air conditioning, refrigeration and heating, lighting, and hot water** due to large heat consumption.

The main way to save energy in buildings

1.Energy-efficient materials and design of buildings, using high-efficiency insulation materials to provide natural light and ventilation by optimizing the building design.

2.Intelligent control system, using intelligent lighting system, temperature control system, etc., for different use cases, turn the device on or off at a specific time period.

3.Energy utilization, the use of solar panels and solar water heaters and other equipment to directly utilize solar energy, the use of HVAC (HVAC engineering) system for energy**, such as waste heat ** and economic heat exchange system.

4.Conserve water, use low-flow taps and toilets, and focus on rainwater collection and utilization.

5.Building operation and maintenance management, regular equipment maintenance and update, upgrade to new and efficient equipment, Xingxiao regularly check the thermal insulation performance of the building to ensure that all insulation layers are intact.

6.The intelligent monitoring and control system can automatically manage and regulate temperature, humidity and other conditions through sensors to optimize energy consumption. In addition, it can also monitor the status of the vertical control equipment and make timely adjustments.

7.For new builds, adopting a green building design minimizes energy consumption. Green building design incorporates concepts such as the use of eco-friendly materials and the maximization of natural light into the design of the building.

In general, paying attention to building design, adopting intelligent control, energy, water conservation and maintenance management are the main ways to save energy in buildings. These methods ensure comfort and ease of use, while also reducing the negative impact on the environment.

Energy-saving buildings know that the shape coefficient of the shelter should not exceed (front plexus) Correct answer:

The volume of bricks is cubic meters, of which only 60% is solid; Then the density of bricks is kilograms cubic meters. Obviously, the weight savings per piece of the same specification are kilograms.

The building shape factor is "the ratio of the surface area of a building in contact with the outdoor atmosphere to the volume it encloses." The external surface area does not include the area of the ground and the partition walls of unheated stairs and doors.

The national energy-saving design requires that the building size coefficient in severe cold and cold areas can not be greater than, the smaller the better, if it is less, then the corresponding heat transfer coefficient of doors and windows, exterior walls, and roofs can be appropriately improved.

Kekun on the evening of September 25, 2012.

There are no specific requirements in the south (hot in summer and cold in winter, hot in summer and warm in winter).

The northern (severe cold, cold) norms shall not be greater than.

The smaller the shape coefficient, the more energy-saving, and the general circular building has the smallest shape coefficient.