The outdoor facade dynamic sunshade concept in the design can automatically sense and intelligently and efficiently control the light and heat radiation entering the office according to different sunshine conditions, providing the best comfort for the users of the office building and playing a good energy-saving effect, which also conforms to the overall concept of a green ecological city.
It can improve the comfort of users, provide a healthy and safe indoor environment, and improve the working efficiency of users.
This paper focuses on saving energy and improving comfort, combining wowa designed projects and some excellent building cases in the world.
01 “different climate zones need to adopt different design strategies” when the earth’s climate is beginning to become extreme, we should make full use of natural conditions, adopt different design strategies for the project, and appropriately increase the feasibility study that can increase energy conservation and comfort for the project through design.
Photo of the completion of Shenzhen hengmingzhu international financial center after completion, the stainless steel horizontal decorative wing on the facade has played a sunshade role and also presented a simple and clean texture.
Environmental comfort is a key factor in determining the sustainability and high-efficiency facade, so thermal, visual, acoustic comfort and indoor air quality will all have an impact on the satisfaction and work efficiency of building users.
The building refreshes the urban skyline with the architectural shape of the main tower Yulan bud and the finely depicted curtain wall details.
For example, the stainless steel horizontal decorative wing on the facade can play a good sunshade role; The texture of the decorative wing also makes the facade of the tower show a simple and neat integrity.
Thermal comfort is defined as “the psychological state of being satisfied with the thermal environment”.
These factors can be realized in the design of the building facade from the design of the best window to wall ratio, high-performance envelope materials, shading measures, natural ventilation, sky green garden, etc.
Wuhan’s regional climate analysis 02 “energy saving and thermal comfort of buildings” buildings, as a major energy user in our society, also bring us the best opportunities for energy conservation and environmental protection.
In the facade treatment of the lecture hall, the stone sunshade grille around the lecture hall can play a good role in decoration and external sunshade..
The main factors affecting thermal comfort are: air temperature, air flow, humidity, and average radiation temperature.
Shanghai Jing’an office building complex scheme wowa’s office building complex project (scheme) in Shanghai Jing’an District takes the concept of urban green ridge and terrace, the architectural form of low in the South and high in the north, and the shape of multi-level three-dimensional greening, connecting the large-scale urban park on the south side and the surrounding urban space.
For example, the office building project of an enterprise headquarters in Wuhan designed by wowa is located in the north subtropical monsoon (humid) climate in Wuhan, which is characterized by abundant rainfall, cold winter and hot summer, and four distinct seasons.
With the increasing shortage of energy and natural resources, technologies and strategies that can maintain indoor environmental satisfaction have also developed and matured.
The office building project of an enterprise headquarters in Wuhan designed by wowa is a super high-rise office building with 30 floors above the ground and a total height of 150 meters.
For example, the climate environment that needs to be heating oriented can be realized through solar energy collection, passive heating The improvement of thermal energy storage and thermal insulation performance of materials will benefit the project.
In the area of the podium, the floor glass curtain wall of the entrance hall is partially coated with colored glaze to reduce the penetration of solar radiation and provide shade, but not affect the line of sight permeability of the floor glass curtain wall.
The total construction area of the project is 95000 square meters.
In terms of facade treatment, the building looks like two crystal crystals.
Effect drawing of office building complex scheme outdoor dynamic sunshade design on the facade of office building Shenzhen hengmingzhu international financial center the hengmingzhu international financial center in Bao’an District, Shenzhen, designed by wowa, is the first international standard super class A office building in Bao’an District.
In the large space of the tower where the office area is located, in order to obtain good natural lighting and fully consider the sunshine factor, full transparent glass curtain wall is adopted, with a window to wall ratio of 0.79-0.82.
It is an urban complex composed of a 230 meter office Princess tower, a 75 meter high hotel, a supporting commercial podium on the second floor, a large sinking square and underground commerce.
In the mixed climate area, a comprehensive design strategy should be adopted to balance shading and sunlight acquisition.
The facade of Hanwha group headquarters building in Seoul has always had two functions: one is to serve as a barrier separating indoor and outdoor spaces, and the other is to create the image of the building.
The building is not only unique in shape, but also has done a lot of design in energy conservation, environmental protection and sustainability.
For the climate environment dominated by refrigeration, the opposite design strategy should be adopted to protect the solar light and heat and direct solar radiation to reduce the indoor and outdoor heat increment.
A large number of openable high windows also meet the new office needs of users for natural ventilation in the post epidemic era.
The facade of a high-performance sustainable building can be defined as a peripheral protective structure that maintains a comfortable indoor environment while using the least energy.
This means that the sustainable building facade is not only a barrier separating the space, but also a building system that can actively respond to the external environment of the building, create a comfortable internal space, reduce energy consumption, and create a new architectural image.
The tower glass is made of double silver hollow Low-E tempered glass, and the skirt glass is made of double laminated double silver hollow Low-E glass, which has good thermal insulation performance.
These factors should be considered when designing the building facade.
