(2) adjustable shading facilities should be used in ultra-low energy consumption buildings. The heat absorbed by the sun absorbed by the external sunshade surface can be adjusted automatically or manually according to the sun height angle and outdoor weather conditions, and the proportion of the sun absorbed by the external sunshade surface is smaller than that of the inner or middle shade. It is the most suitable shading form for ultra-low energy consumption buildings. The schematic diagram of the adjustable external shade and adjustable sunshade of the lifting louver is shown in figure 10;
In the urban sub-central station comprehensive transportation hub, the main hub function is built underground. On the ground, a landmark building, the “Jingfan” roof, was built. The roof can balance the cooling and heating load and rationally control the indoor light and heat environment by setting a perforated sunshade. It is estimated that the heat load can be reduced by 5.2 million kilowatt hours per year, which is equivalent to the summer cooling capacity of 3200 household air conditioners, and about 486000 kilowatt-hours of lighting electricity can be saved every year.
The cultivation bed direction decreased by about cm, which can effectively prevent the thermal conductivity effect, avoid the decline of soil temperature in winter, and do not affect the light. This kind of greenhouse has relatively high ridge height, large space, easy to work, large buffer to temperature, more heat extraction during the day, good heat preservation at night, and the temperature is not easy to drop. Greenhouse body lighting, heat storage, heat preservation and cold protection are properly handled, which is a very suitable greenhouse type for out-of-season vegetable production. The cost is not high and it is easy to popularize. Has a wind-resistant structure. Like the high-performance greenhouse, the cultivation is varied and the arrangement of stubble is flexible. It can be cultivated in late autumn plus early spring, and one crop of leafy vegetables can be added between two crops in winter. Early spring stubble seedling raising needs to be carried out in a greenhouse with heating equipment), fruit and vegetable production in late winter can also be arranged, and sunshade net can also be used for production in summer.
The earliest sunshade is operated from the car, the advantage is relatively convenient, will not be lost. The disadvantage is that the effect is too poor. Because it can not completely protect the center console, there will always be light leakage. And the central console of the car is not just a part of the car, it extends all the way to the engine compartment. From the outside of the car, the part under the windshield to the middle of the engine cover is actually the same as the central console, which can not be covered. The temperature of the central console will never come down.
Color is not an entity and needs to be attached to materials and craftsmanship in order to be reflected. The components of automobile interior decoration include seats, dashboards, carpets, seat belts, central control panels, steering wheels, door panels, sunshades, ceilings and all kinds of switch handles and other parts. the materials involved can be divided into three categories, such as facing materials, cushioning materials and interior skeleton materials . There are more categories in each category, so that the corresponding process is too numerous to list. When a variety of materials and processes are combined with different colors, the color design of automobile interior seems to have unlimited possibilities.
Polyurethane, according to the different products of polymerization, is commonly divided into hard polyurethane and soft polyurethane. Polyurethane foam is widely used in automotive interior decoration and vibration-absorbing parts, such as coating materials, polyurethane rigid plastic plates, polyurethane elastomers, seat soft foam materials, decoration parts, sofa leather, roof accessories; the most widely used is a variety of soft and hard polyurethane foam materials, which have vibration insulation, sound insulation, noise reduction, thermal insulation; PU can also be made into automotive polyurethane coatings, binders, sealants and so on. The PU representative parts on the car are dashboard, rearview mirror, bumper, seat cushion, headrest, steering wheel, instrument panel anti-vibration pad, pillar decoration, front roof lining, window frame, ceiling and side roof frame decoration, door liner, sunshade panel, rear roof frame decoration and so on.