NTC sustainable research journal

The second challenge is in the design, the architect placing three wind turbines in order from the height of the 50-story building. The three wind turbines are located on different levels. This design guarantees the overall sense of the World Trade Centre Bahrain building, avoiding too hollow between the twin towers and losing the sense of beauty, however, the three wind turbines have to face the wind of different heights. It should be noted that the wind speed gradually increases with altitude, and the higher the position of the impeller rotation, the faster the theoretical operating speed. This is unacceptable to the construction company because the three wind turbines must maintain the same standard rotation speed, otherwise, the faster the high-speed rotation of the impeller wears out faster.   It will also find a solution to the wind problem. Because the wind power determines the amount of power generated, if the wind turbine cannot maintain sufficient frontal wind power for ...

Sydney Park Water Reuse Project is part of City of Sydney’s Decentralized Water Master Plan (2012-2030) . It designed by   Turf Design Studio & Environmental Partnership . The aim of this project is that alleviating 10% water demand of the city. Sydney Park was once industrial land and landfill. In the past two decades, people have made many efforts to transform it into a park of 44 hectares, which is extremely important value for the development of communities in south-eastern Sydney.   There are three key points in the project. First and foremost, water resources management is necessary to efficiently recover urban wastewater, improve water quality and reduce consumption of drinking water. The second point is to create places suitable for people's activities so that everyone who comes to the park can enjoy it. For this reason, the park needs a comfortable environment to provide people with a place to live, study or simply stay. In order to create a comfortable and ...

World Trade Centre Bahrain has an amazing design which is the wind turbines. The generator windmill has a rotor speed of 38 revolutions per minute at full load and is powered by a series of gearboxes placed in the engine compartment to run the generator at 1,500 revolutions per minute. The optimal power generation design is approximately 225 kW at a wind speed of 15-20 m/s. Moreover, the fan rotor has a diameter of 29 meters and is made of 50 layers of glass fibre. When the wind is strong or needs to be transferred to a standstill state, the top of the fins will be pushed outwards, increasing the total torque of the rotor and achieving the purpose of deceleration. To protect the building from the natural disasters. The maximum wind speed that the wind turbine can withstand is 80 meters per second, which means it can withstand Class 4 hurricanes.   There are some really difficult challenges when this building is building. The first challenge is the design of wind turbine impel...

Following the electric car and energy company, Tesla sold the Model S electric car, the electric vehicle becomes a hot topic for the general public. It is necessary to consider the future development of the electric vehicle, whether it is really environmentally friendly.   Today, I only talk about the electric car, no other type of vehicles. There are two types of the electric car, one is the fuel cell cars and the other is pure electric cars. First and foremost, the fuel cell cars have more energy conversion links, and the pure electric cars dominate energy conversion efficiency. A pure electric car needs 20 mins even if it is fast-charged, and the hydrogen-fuel car will be hydrogenated for 5 mins, and the fuel cell vehicle dominates from the energy supply rate. However, the fuel cell cars are faced with difficulties in hydrogen production, transportation, storage, and manufacturing of low-cost fuel cells. At present, Japanese engineers and other companies are making great ef...

Sloping roof refers to roofs with a drainage slope of more than 3%. Sloping roofs are widely used in buildings. They mainly include single-slope, double-slope, four-slope and fold-back these four types. This roof has many benefits and potential benefits for the outdoor and indoor environment. First and foremost, the sloping roof will provide a more comfortable indoor environment with some passive designs. Because of the slope, it has a larger area of the face, it means that it will provide more natural light if you need a natural light roof. Furthermore, to avoid the much radiation transfers to the indoor, under the sloping roof, a compartment can be installed to isolate the heat or keep warm. Moreover, this compartment also can be a room for building equipment, such as air conditioning external machine and rainwater storage box. However, before installing equipment in the compartment, the strength of the roof structure should be evaluated. In addition, sloping roofs also ...

The South-to-North Water Diversion Project is a strategic project of the People's Republic of China and is divided into three routes: East, Central, and West. The starting point of the Eastern Route Project is located at the Jiangdu Water Control Project in Yangzhou, Jiangsu Province; the middle line project is located at the Danjiangkou Reservoir in the upper and middle Hanjiang River. The water supply areas are Henan, Hebei, and Beijing. Four provinces (cities) in Tianjin.   The idea of the project plan began in 1952 when Chairman Mao visited the Yellow River. Since then, after analyzing and comparing more than 50 programs, the water transfer program has obtained a large number of valuable results. The South-to-North Water Diversion Project planning area involves a population of 438 million people and a water transfer scale of 44.8 billion cubic meters. The total length of the east, middle and west lines of the project planning are 4350 kilometers. The total length of the main l...

Bahrain, an island country near the west coast of the Persian Gulf, has a tropical desert climate. World Trade Centre Bahrain, costing 35 million BP (more than 90 million U.S. dollars), is the first skyscraper in the world to use wind energy as a source of electricity. The building consists of two traditional Arabic “wind towers” high-rise buildings, such as a comparative winged sea sail. The hurricane unfolds, strong and powerful, located in the blue shore of the Arabian Gulf. World Trade Centre Bahrain is a 240-meter-high, twin-tower structure building., whose main body is oval in shape. Three horizontally supported wind turbines with a diameter of 29 meters are installed between the two buildings. The sail-like building forms the convection of the sea breeze before the two buildings, which accelerates the wind speed. In addition, the wind turbines are expected to support 11%-15% of the electricity needed for the building. The installation cost of these three wind turbines i...

High Line Park as a refurbishment green infrastructure, which proposes a concept of rotating time so that high-line tourists and residents enjoy nearby temporary artworks. High lines are fresh and novel, focusing on unique high-line forms, structures and concepts. The core goal is to provide opportunities to promote artists to showcase their work in a public place. Moreover, they can achieve further boost in the excitement of the general audience; and strengthen New York City, especially near the high line, to become an important cultural centre.   Set up a new walking system, connected by linear cement and wooden planks. The special conical boundary line seems to be allowing the free flow of water; and the organic green plants are mixed with hard materials to create a sloppy area, which immersed in the structure. Slowing down the landscape and enhancing its continuity will make people feel like they are in a less stressful space. In addition, long stairs, meandering trails, and ...

High Line Park is a linear hanging garden on the west side of Midtown Manhattan, New York. It was originally a railway freight transport line connecting the meat processing area and the 34th Street Hudson Port built in 1930. It later retired in 1980 and was once faced with the danger of traffic accidents. However, under the strong protection of the FHL organization in New York, the high line has finally survived and became a unique sky garden corridor, which has won great social and economic benefits for New York City and has become a model for international design and reconstruction of old objects. The history of this railway lane is tortuous as well. In 1847, the City of New York authorized the construction of a street railroad project on the west side of Manhattan. Between 1851-1929, there were frequent accidents with freight trains and pedestrian vehicles on the streets so that Tenth Avenue became a well-known death path. Decades after the railroad was abandoned, there is l...

It is acknowledged that smog already has had a detrimental impact on China’s cities. A few years ago, there was a kind of special truck widely used in many cities to control smog called Fog Cannon Truck. The Fog Cannon Truck's spray system has a certain control effect on dust, reducing the content of large particles in the air, and has limited effect on tiny particles. The fog particles sprayed by the fog cannon are extremely small, reaching the micron level. In the fog and haze weather, the liquid fog can be used to reduce dust, decompose and dilute the concentration of particles in the air, and can effectively decompose the airborne particulate matter, dust, etc., and effectively alleviate the haze. According to reports, the purchase of the Fog Cannon Truck costs more than 800000 yuan， which is low cost performance. The particulate matter floating in the air is quickly forced down to the ground to achieve the effect of clean air purification. Fog Cannon Truck needs wate...

The green building technologies used in Wanke Centre include many aspects. First and foremost, in the interior of the building, water saving tools and methods are used to save water, such as low-flow toilets, waterless urinals, low-flow faucets with automatic control systems, and low-flow shower heads. Water-saving is at least 30% or more. A comprehensive rainwater recovery system was installed to collect the rainwater, accumulate it in the waterscape pool, and return it for greening and replenishing the loss of water from the landscaped pool. As an office building, the design uses a large area of glass to get ample sunlight. However, in order to avoid excessive heat gain from the sun due to this design, and glare in winter, the design uses commonly used low-emissivity and high-transmittance glass, together with innovative, self-adjusting external shading system, which automatically adjusts the horizontal sun visor according to the solar elevation angle and indoor illumination....

Wanke Centre was designed by famous American architecture Steven Holl . This building is located in the Shenzhen, Guangdong province, China, and it is located above a tropical garden and stretches horizontally as long as the Empire State Building lays flat. The building looks as if it once floated on the high sea, and now the seawater recedes. More than that, in the interior of the building, a public passage has been specially designed to connect the office headquarters with hotels and apartments. The project is located in a tropical climate zone. Buildings and landscapes incorporate a number of sustainable development strategies, including a microclimate system for cold water ponds (recovery water savings). The green roof of a solar panel is combined with the entire design and uses local materials such as bamboo. Additional the external glazed facades resist sunlight and wind through perforated plates. The building's shape resists the tsunami and creates a public open landscape...

A power generation floor is a device that provides electricity. The principle is to use passengers to step on the floor to generate electricity. A kind of power generation floors developed by Japanese researchers was set up on the sidewalk of the busy Shibuya Train Station in Tokyo. A total of four panels were laid, each with a floor area of 45 square centimeters. When pedestrians step on it, panels can generate electricity. On average, each person walks twice to produce 0.5 watts of electricity. At the same time, there is a sign near the panel that shows how much energy is stored. Dutch scientists also developed a power generation floor, a dance-powered floor set in the Westergas Park in the city of Rotterdam. The two groups took turns dancing on the dance floor. The energy generated when people dance will be converted into electrical energy to light up the built-in diode lamps installed on the floor surface. The energy generated when two people danced on a dancing power floor was c...

The cycling lane has been constructed in Sydney for many years. Some lanes are still being constructed. The cycling lanes are funded by the Sydney City Council but will be constructed by contractors managed by RMS. The construction of bicycle lanes is part of the City Center Access Strategy of the NSW Government   The cycling line projects have a slow process and are not connected, which are not convenient for riders. In another word, this is cannot encourage sustainable transportation as well. Because of the unconnected of lanes, bicycles are easy to drive with pedestrian s or motor vehicles, which is very dangerous. Another negative situation of cycling line in Sydney is that many vehicles parking on the cycling line, especially in the residential area, which makes bike riders rider on the motorized lane. Therefore, comparing with the Bicycle path is not perfect, lanes management is more important than construction. In my opinion, make the traffic more legally is the fir...

Air conditioning (AC) systems with fresh air system have been widely used in some public buildings. When people in a room with AC, some people could feel cold, and the rest of them could feel not cold enough. Misuse and lack of management make  public buildings AC in summer high energy consumption and poor indoor air quality (IAQ). Central AC units for some public buildings, including various AC systems renovation, from the end of the intelligent control system with the coordination of the revised host control strategy to achieve the purpose of energy conservation. Through the MCU on the air conditioning control AC end equipment, data judgment and transmission are calculated by the server. For instance, Wechat as a software plant and a social community software is widely used in China. It can be a commander to send the command to the MCU. People in the room can vote their comfortable temperature to the MCU, then MCU sends the message to the server through Wifi network. After t...

Over 80% of Australia's national territory has a light intensity of more than 2000 kW/m2/hour, and it has the world’s number one sunlight resource. How to use such natural resource for electricity generation as an issue needs to be considered. Nowadays, Australia government encourage to develop PV industry.   The Australian government's support plan, especially the renewable energy target, has greatly affected the domestic photovoltaic market in recent years. The goal is to increase renewable energy generation from 8% to 20% by 2020. It uses renewable energy certificate incentives and renewable energy generation per MWh is eligible for a renewable energy certificate. Renewable energy certificate incentives and solar energy integration are all applicable to photovoltaic systems. Moreover, there are specialized solar energy research institutes, renewable energy centers and national-level scientific and industrial research institutes in Australia. In addition, many famous univ...

Shared bike once as a sustainable tool with a quick development in China and it is also spread to other countries, such as UK and Australia. However, nowadays, the negative impact caused by the shared bike exceeds the benefits it brings the society sustainable development. The shared bike provides much more opportunities for encouraging to transport environmentally friendly. Therefore, it is popular to be used by general public. Simultaneously, the demand for the shared bike is increasing dramatically. Following the mainstream, more and more shared bike companies joined in the commercial competition. To compete with each other, the number of shared bike and the types of the shared bike is increasing in each company. Although it is good for the customers' choices, another contentious issue is created as well.   Because of lack of shared bike infrastructure, many bikes are stopped on the sidewalk, occupy the public area and have a detrimental impact on the city view. Secon...