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There is one in Mongkok
Power Generation Exercise Cycle
The power can be output from a battery. 220V
300W
Can start fans
lights
and TV. You can watch TV even when the power is off. You can call and ask. Tel: 61811397 e-mail: [email protected]
There are currently *** two power companies in Hong Kong: Hongkong Electric Company Limited (HK Electric) and CLP Power Hong Kong Limited (CLP). Each of the two power companies has several power plants in Hong Kong to generate electricity, while CLP has nuclear and hydroelectric power plants in Guangdong to provide sufficient electricity for all districts in Hong Kong. Hongkong Electric Company Limited Power Station: Lamma Power Station is currently the only large-scale power plant in Hongkong. The plant is located on 50 hectares of leveled and reclaimed land at Por Lo Tsui, on the north side of Lamma Island. The plant *** is divided into three phases, with the first phase commissioned in 1984 and the third phase completed in 1991. The plant has a total generating capacity of 3,420 MW and consists of eight coal-fired units and five gas-fired turbines, which, under normal operating conditions, will only be coal-fired at Lamma to reduce costs. However, the plant also has the ability to generate electricity using oil. Currently, the plant is in the process of building a new natural gas-fired facility that will provide an additional 1,800 megawatts of electricity when completed. Lamma Wind Power Station, located at Lamma Island, occupies 4,400 square meters and is the first renewable energy wind power facility in Hong Kong. The plant has an 800 kW wind turbine and is expected to generate 1 million kWh of electricity per year. Hong Kong and China Light and Power Company Limited: Castle Peak Power Station is located at Tap Shek Kok, Tuen Mun and occupies 62 hectares of land, which was constructed by Castle Peak Power Company. Castle Peak Power Station A commenced operation in 1982 with four generating units. Castle Peak Power Plant B, which began operation in 1985, also has four generating units. With a total generating capacity of 4,100 MW, the two plants are among the largest coal-fired power plants in the world. In addition to coal, Castle Peak also generates electricity from oil and natural gas. Each of the two plants at Castle Peak Power Station has a chimney. The chimney of Castle Peak Power Station B is 250 meters high, which is a very high chimney to ensure that the flue gas can dissipate more easily. The power stations were built along the waterfront to facilitate the pumping of sea water for cooling, and also for the construction of large deep-water terminals for berthing of large coal carriers. The Penny's Bay Gas Turbine Power Station, located at Penny's Bay on Lantau Island, was commissioned in 1992 by Castle Peak Power Company. It is CLP's back-up plant and is used to bring the Penny's Bay Power Station into operation in the event of an emergency on the generating system. The Penny's Bay Power Station is oil-fired and has three 1,000MW gas turbines. The 46-hectare Long Kwu Tan Power Station at Raggedy Peak Surge, Tuen Mun, was also built by Castle Peak Power Company. The plant commenced operation in 1996 and will complete all construction works in 2006, making it one of the largest natural gas combined cycle power plants in Hong Kong. The plant *** has eight units with a generating capacity of 2,500 MW. In addition to natural gas, the plant can also generate electricity from oil. The natural gas is supplied from Yacheng gas field on Hainan Island. After processing, the natural gas is directly transported to Longgutan Power Plant through a 780-kilometer submarine gas pipeline.
Thermal Power Generation Ever since the invention of drilling wood to make fire, human beings have been conquering nature by utilizing the thermal energy generated by fire. Fossil fuels such as coal, oil, and natural gas are burned in a boiler, which is fitted with a ring of water pipes. The water in the pipes is burned into hot water vapor, which drives a steam turbine, which in turn turns a generator to produce electricity. Thermal power plants are the most popular form of power generation today, but they produce exhaust, dust, air pollution, and expensive fuel costs, and are not easy to transport and store, which are their biggest drawbacks. Geothermal Power Generation Our country is located in a geothermal area, and we have great expectations and visions for the utilization of geothermal power; we are currently carrying out research and exploration, and we believe that the development of geothermal power generation will be accelerated in the near future. The average electricity consumption per person in China is about 0.4 kilowatts, so a township with a population of 50,000 people only needs a geothermal power plant with 20,000 kilowatts to supply the entire township's electricity consumption. The Qingshui Geothermal Power Plant in Yilan County currently has a generating capacity of 800 kilowatts. The geothermal power plant currently in operation is a steam power generation method that uses steam directly from the ground to rotate a turbine to generate electricity. There is also a method of generating steam by feeding water from the ground into the ground, and with this method, power can be generated even if there is no underground steam storage layer. Therefore, geothermal energy can be said to be an endless underground energy source. Since the geothermal medium may be hot water or hot steam, and the temperature and pressure vary greatly, the method of generating electricity varies with the nature of the geothermal heat. For high-temperature geothermal water, "flash steam treatment" is often used, which means that the geothermal water is rapidly evaporated due to pressure reduction, and then introduced into a low-pressure steam turbine to generate power to generate electricity. The high-temperature steam after power generation is condensed in a cooler before being discharged into a river or into the ground. High-temperature, dry geothermal steam can be fed directly into the turbine; wet geothermal steam (mixed with hot water) is separated from the steam and water and then the dry steam is fed into the turbine. If the hot water contained in the wet steam is at a fairly high temperature, it can still be flashed and reused (at the end of the process) or used for other purposes. Many geothermal heaters are corrosive or prone to scale build-up in the piping, so indirect power generation is used, i.e., the geothermal energy is first transferred to the working medium (e.g., clean water vapor, alkane hydrocarbons (Paraffin hydrocabon), trimethylmethane) through a heat exchanger to make high-pressure, high-temperature steam, which is then fed into a high-pressure steam turbine to generate power for generating electricity. Biogas Power Generation A power generation method that utilizes biogas from animal waste and garbage dumps as fuel, and generates heat from the combustion of the biogas to drive a turbine. The general composition of biogas is as follows: Methane 60~70% Carbon dioxide 230~30% Hydrogen sulfide 1~5% Water vapor etc. A little bit To obtain good quality gas fuel, the impurities in the above gas must be removed in order to increase the value of combustion; the water in the impurities above will clog the ventilation holes, and the same as the content of phosphorus dioxide will reduce the combustion value of the whole gas (calorific value), and in addition, hydrogen sulfide will corrode mechanical equipment and generate poisonous gas during combustion. In addition, hydrogen sulfide will corrode mechanical equipment and generate toxic sulfur dioxide during combustion, which is harmful to human beings. Biogas (biomass gas) conversion method, mainly to smoky gas fermentation, smoky gas fermentation can not only produce useful gas, but also can be made into fertilizers, at the same time on the biomass has the effect of sterilization. Current Power Generation The Gulf of Mexico Current, which is of the same size as the Black Sea, has a huge current power generation system with two large helical rotors rotating in the opposite direction, the "Coriolis 1", which is currently under experimentation, with an outer diameter of 171 meters, a length of 110 meters, and a weight of about 6,000 tons. With a current of 2.3 meters per second, it can generate 83,000 kilowatts of electricity. Temperature difference power generation In a variety of ocean energy applications, the temperature difference power generation is the most significant (and effective), so when it comes to "ocean energy", almost means ocean temperature difference power generation ocean temperature difference power generation is also known as Ocean Thermal Energy Conversion (OTEC, Ocean Thermal Energy Conversion) The main working principle is that seawater absorbs solar energy, resulting in the difference in temperature between the surface of the seawater and the lower layer of the water (about 1.3 meters per second), the difference in temperature between the surface of the water and the lower layer of the water. The main working principle is that after the absorption of solar energy by seawater, the difference in temperature between the surface and the lower layer of seawater (about 20 degrees Celsius or more) is caused by the use of appropriate working media to carry thermal energy to drive the steam turbine and then drive the generator to generate electricity. Temperature difference power generation energy conversion systems can be divided into two categories: "open-circuit" and "closed-circuit". In the open-circuit temperature difference power generation system, the warmer seawater on the surface of the sea, after removing CO2 and other gases, is sent to the vacuum evaporation tank to become steam, which drives the heat engine to generate power to drive the generator to generate electricity, and the used steam is condensed to become fresh water, and the cold water is generated by using the colder water on the lower part of the sea surface. In the closed-circuit temperature difference power generation system, ammonia is often used as the working media. Warm seawater flows into the evaporator to vaporize the ammonia, and this ammonia steam is sent to the turbine to generate power, and then it is introduced into the condenser, and condensed by the low-temperature seawater from the deeper part of the seawater, which turns into liquid ammonia and flows back to the evaporator for further use. The construction of the ocean temperature difference power plant construction project can be divided into onshore and offshore type, and can be divided into fixed type and floating type, floating type means can be sailing and moving or anchored to the seabed with cable. Offshore type power plant according to the degree of flotation, can be divided into ship type, submarine type, semi-submersible type, floating disk type and submersible cylinder type, of which the semi-submersible type after the test evaluation is higher. Floating oil type power plant, the bottom of the 800 meters long, 10 meters in diameter of the intake pipe down to the bottom of the sea. Fixed power plant in the depth of about 800 meters in the sea to set up platforms, but also in the depth of about 100 meters of the shore shell shallow platform (another pull out several kilometers long water intake pipe to the deep sea), fixed on the shore of the construction costs are lower, but the water intake pipe and its insulation construction costs are higher. 2008-07-19 20:44:42 Supplement: Temperature difference power plant structure Advantages (1) Ocean energy from the solar energy, is inexhaustible energy, and does not require fuel, can not be subject to others. (2) Temperature difference power generation is a continuous output, unlike solar energy or wind power, which is subject to the influence of time, climate and other changes. (3) Temperature difference power generation process produces little pollution, and if necessary, can be achieved without pollution, the environmental damage is also minimized. (4) The temperature difference power plant is often built in the sea, far from the city and the beach, there is no interference and adverse effects on the living environment, in addition to the initial desire to build a plant, the acquisition of land, the purchase of land will not be a problem. 2008-07-19 20:44:54 Supplement: (5) Temperature difference power generation can be accompanied by fresh water, in terms of 100MW of electricity, a million gallons of fresh water can be distilled every day; it can be used for food, agricultural irrigation and breeding. (6) The waste heat generated by the temperature difference power generation process can be recycled and utilized for small power machinery or agricultural and fishery use. (7) The power generated by the temperature difference power plant can be used to supply electricity to the city, but it can also be used to set up factories nearby to manufacture fresh water, salt, seafood processing, hydrogen production, and so on. 2008-07-19 20:45:19 Supplement: Method The power generation method using the temperature difference between the surface layer and the bottom layer of seawater is to make use of the liquid with low boiling point, so that the warm water is evaporated into gas in order to rotate the turbine to generate electricity, and the gas after passing through the turbine is cooled by the cold water to restore the original liquid. At this point, the low boiling point of the liquid is sealed in the closed tube circuit, so it is called closed loop type. At present, the United States, France, Japan and other countries, is undergoing research and development, it has floating in the ocean power generation and land-based power generation in two ways. One of the land-based power generation methods, must use long water pipes to draw water from the deep sea, so it is necessary to choose a special terrain, otherwise it is not possible to obtain the appropriate water source. Recently, Japan was commissioned by the Western Pacific Noru*** and Japan to build onshore temperature difference power plants, with two units of 1,000 kilowatts, which were completed and officially operated in the middle of 1982 AD. 2008-07-19 20:46:37 Supplement: Tidal power generation The use of the tide of the full dry fall into the type, to engage in the method of power generation, as shown in the figure, in the bay surrounded by the construction of the Tifu and the waterway, in the high tide of the water into the reservoir; ebb tide will be the release of the water, can be generated four times a day, but when the tide of the full dry fall is small, it is very difficult to generate electricity.
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