Advanced Materials Research Vols. 953-954

Abstract: Concerning the prediction problems’accuracy of the state-of-charge(SOC) of the battery，this paper proposes a prediction method based on an improved genetic algorithm-radial basis function neural network for power battery charged state. The prediction method, based on intensity of information interaction and neural activity, adjusts the size of the neural network online and solves the problem that radial basis function neural network structure adjustment influences the accuracy of charged state prediction. The simulation results show that，compared with the method of radial basis function neural network based on genetic algorithm , the accuracy of charged state prediction is more stable and more precise.

Abstract: A small indoor cooling system through cold water circulation is introduced in this paper. The system mainly includes cooling pool, cold water circulation equipment, indoor heat exchanger, temperature measurement equipment and induction controlling equipment. The indoor cooling is achieved by heat transfer between the natural underground water of lower temperature and indoor air of higher temperature, and it is different from the traditional compression refrigeration system in which a great amount of electric energy is consumed while the refrigerant is compressed. Compared with the ordinary air conditioning system, this system has obvious advantages on economy, application potential and energy conservation in rural developing areas.

Abstract: Coal consumption characteristics data provided by on-line monitoring system are crucial for Energy-saving generation dispatching. Therefore contrastive tests are required for checking the accuracy of the coal consumption on-line monitoring system. In the paper, factors affecting coal consumption characteristics data were analyzed, methods and contents of the contrastive tests were also achieved. By comparing three test conditions with the base condition, computing program, measuring points, manual inputting data and other influencing factors were checked. This tests could provide accurate coal consumption characteristics data. This study has been applied successfully in many plant units, and the formation of local standard in Guizhou Province, China.

Abstract: For the problem of the abandoned large-scale wind power currently, in order to improve the utilization of wind power and make full use of wind resources, a method of using wind power to heat the condensed water through electrothermal furnace is proposed. On the basis of mass and energy conservation, through analyzing variable condition of the regenerative heating system and water-cooled condenser, the dynamic mathematical model is created and then the dynamic influence of condensed water temperature on the economy of thermal power plant is studied. This paper, taking a typical 660MW water-cooled unit as an example, discusses the dynamic characteristics of steam turbine and energy-saving effects of this method. Results show that obvious economic effects can be obtained through non-grid-connected wind power heating the low-pressure condensed water, which can reduce the steam extraction flow from steam turbine, improve the thermal efficiency of thermal power plant and save the amount of coal. It has positive significance to digging energy-saving potential of plant.

Abstract: Influences of the ignition timings and EGR rate on performance and emissions characteristics of a spark-ignition methanol engine with higher compression rate have been researched experimentally. The methanol engine was obtained by retrofitting a direct injection diesel engine whose compression ratio was 18.0 and the methanol injectors have been mounted in intake manifolds. The experimental results have revealed that, the advanced ignition timing can increse peak in-cylinder pressure and shorten combustion duration period. The increased EGR rate can reduce peak in-cylinder pressure, lengthen combustion duration. The methanol engine has optimal EGR rate and ignition timings to obtain good performance and low exhaust emissions. The best compromise between the BSFC and exhaust emissions is reached at optimal EGR rate and ignition timings.

Abstract: Tunnel kiln was reformed according to energy-saving mode, which was energy utilization diagnosis and analysis and energy-saving reconstruction. First, thermal performance was diagnosed, and the basic data for energy-saving reconstruction was provided through the test of tunnel kiln. Then the main factors of low thermal efficiency was found .Second the thermal balance was calculated in drying and sintering process, which determined the form of waste heat recovery and utilization system. Finally the reconstruction was implemented by three energy-saving technologies .It caused energy-saving rate reached 44%.

Abstract: Three evaluation indexes energy quality factor, energy grade utilization rate, matching degree can be built according to the high energy with high use, low energy with low use and taste counterpart to. Energy quality factor can quantify the energy grade of energy supply system. Energy grade utilization rate can embody rational use of terminal energy performance in the form of visual comparison. Energy grade matching degree quantitative express the link between building energy supply system and the building actual energy situation, and it directly reflects the rationality in different systems. Based on the three indicators, a scientific and reasonable evaluation method can be built with reasonable use for guiding ideology.

Abstract: With the popularity of e-commerce recently, how to control the operation cost has become an urgent issue need to be solved for all logistics company. This paper proposes an improved bin packing approach under the consideration of fuel consumption for delivery vehicle, to provide logistic company bin packing scheme with the least vehicle numbers and fuel consumption. First, with the consideration of controlling logistics costs, a multi-objective function is built to minimize the number of vehicles and the fuel consumption during delivery. Then a simulated annealing algorithm with improved neighborhood operations is proposed to solve the joint optimization problem. Finally, the effectiveness of the method is evaluated. The results show the proposed approach can effectively reduce logistics costs compared with the conventional bin packing approach and is helpful for reducing fuel consumption by balancing the weight among different vehicles.

Abstract: Energy consumption of gas-fired infrared radiant and heat exchanger by convection heating is comparative analyzed, CFD software is used to simulate fields of the temperature and the predicted percentage of dissatisfied. Based on the profiles analysis of comfort index, it is found that the radiant panel can save over 10% than convection heating when implemented in industrial factory building.

Abstract: The analysis of results of power inspections and search of possible solutions of energy saving and increase of power efficiency of budgetary organizations (kindergartens) taking into account feature of these objects and justification of their economic efficiency is given in article.