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During the combustion of straw, the formation of deposition, which destines to furnace erosion and exerts great influence on safety operation, on heating surface is affected by many factors. The paper studies the influence of speed and amount of air. According to the test: the air speed affects the sedimentary quantity of fly ash and the deposition position; the air amount affects the fuel combustion...
Micro-grid technology can integrate the advantages of distributed generation power system, to provide users with quality and reliable electricity. This paper designs the photovoltaic system which is short for PV based on the energy storage structure which not only analyses the energy flow direction of the charging and discharging circuit, but also designs the control strategy of charging and discharging...
Optimization of the combination of power generation units is a very important problem as to improve the economic efficiency of power plant. Mind Evolutionary Computation (MEC) simulates the evolutionary process of human's mind. With convergence and variation process, MEC can get the optimum solution Compared with other optimizing method such as dynamic planning method, its arithmetic is simple- and...
There are two configuration modes of the FGD booster fan in thermal power plants. One is to install booster fan behind induced draft fan, called the separation mode; the other is to integrate the two kinds of fans, that is to cut off booster fan, but install a bigger induced draft fan which can support the pressure head for the whole system, called the integration mode. Through detailed analysis,...
When serious accidents happen in the nuclear power plant, radioactive aerosol of iodine is one of the elements which can do harm to workers, surrounding residents and the environment. We can calculate the thermophoretic deposition efficiency and the turbulent deposition efficiency of aerosol of iodine in the temperature field within the containment through selecting the appropriate model, and we can...
Natural gas consumption growth rate in Iran over the past decade has been usually over than the world wide consumption. As temperature variation has an inevitable effect on raw material consumption which supplies thermal and cooling energies in different areas of the society so in this research we are going to investigate the temperature effects on different sectors of natural gas consumption such...
Measurements of sunshine duration and average temperature data obtained from meteorological center in Cameroon spanning a period of 30 years (from 1961 to 1990) have been used to predict the availability of solar radiation at Yaounde (longitude11.31, latitude0.35N). Then we use ZABARA method to predict solar radiation from measured (available) sunshine duration. Finally HOMER software is employed...
This paper studied the effect radiation of the parabolic trough concentrator thoroughly, and it was revealed that Incident Direct Insolation (IDR) should be used to evaluate the solar resource for locating a PTSTP plant, instead of Direct Normal Insolation (DNI), for it takes latitude into consideration. Lhasa, with latitude of 29.43, and Naiman, with latitude of 43.47, were studied respectively,...
This paper presents a novel group multi-criteria decision-making method for power system skeleton restoration. The proposed method improves the technique for order preference by similarity to an ideal solution (TOPSIS) in supporting group decision-making. This method can comprehensively consider the safety margin and restoration rate of power system, and can be used to support the restoration decision-making...
In the current power market environment of China, lease operation mode of pumped storage power station is an efficient way to realize static and dynamic benefits of power station, also it's one of main operation mode in China. A two-party profit model among pumped-storage power station and grid companies was build. The profits of power station and grid company were discussed to meet the individual...
China enjoys rich lignite resources. However, the development and utilization level of lignite in China is low compared with other countries. The lignite in China is distributed mainly in the eastern areas of Inner Mongolia and in the northeast provinces. The characteristics of China's lignite are closely related to its coal-forming age. Due to the shallow buried coal seams, most parts of the lignite...
This paper has discussed designing and economic analysis of BIPV systems. For system designing, two major problems: shading and tilt angle calculation are analyzed. A new way to calculate tilt angle so as to reduce the impacts of shading and maximize power output is presented, followed by a designing example to show its effectiveness. In economic analysis, LCOE method is used to evaluate the designed...
Ecological water demand is given great attention in water resources research field over the past decades. Many river administrations intend to put their hands to protect ecological flow in water resources management. But its influence on the existed interests created by reservoirs operation, become a main obstacle to carrying out the further work. Therefore the objective of this paper is to analyze...
PPS filter is widely used in Thermal Power Plant Dedusting, the mechanical properties of PPS filter is influenced by the high temperature of flue gas. In this paper, effect of high temperature on PPS filter was studied. The results showed that with increasing temperature, the breaking strength of filter has a downward trend; the fiber of base fabric and surface has great impact on the mechanical properties...
This paper uses the grid-connected photovoltaic (PV) power plant electromechanical transient simulation model on FASTEST (Fast Analysis of Stability using the Extended equal area criterion and Simulation Technologies) to do the simulation of PV power plant integrated to the grid. The simulation includes the largest installed capacity of PV power plant and the response of PV power plant when solar...
The increasing population and the developing social economy bring a great quantity municipal solid waste. Municipal solid waste treatment has currently become a hot environmental and social issue. Integrated treatment park of municipal solid waste was present to reserve and control environmental sanitation land and pollution control. This paper provides information about the planning of Tianziling...
Coal is indeed China's double edged sword-the new economy's black gold and the fragile environment's dark cloud. Because of its impact as a greenhouse gas on climate change, it has become increasingly urgent to reduce emissions of carbon dioxide. The article makes an overview of Coal's role in the climate crisis and suggests new approaches for China coal enterprises to shrink the carbon footprint...
The control for a switched reluctance generator (SRG) with three-level power converter to increase output power is presented in this paper. First, the operation conditions and key factors to enhance output power of SRG are proposed. Then a three-level power converter with intermediate freewheeling boosts the magnetizing current and the average current in generation freewheeling region. Accordingly,...
With the wide use of reverse osmosis technology in power plants, many produce water distribution networks of first-order reverse osmosis of seawater have severe corrosion, which is a threat for the normal and efficient operation of power plant. This paper studied the effect of corrosion factors such as dissolved oxygen, chloride ion, flow velocity, temperature on first-order reverse osmosis corrosion...
Experimental study was carried on a 300MW swirling combustion pulverized coal firing furnace with put parts of tertiary air as over fire air to reduce NOx emission. The influence of boiler operational condition on the characteristics of NOx emission were studied, such as the content of O2 at economizer exit, the proportion of the top tertiary air and mass flow of over fired air (OFA). Results show...
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