报告从行业环境、太阳能、风能、生物质能、新能源汽车等几个方面进行了分析及评论。

报告从行业环境、太阳能、风能、生物质能、新能源汽车等几个方面进行了分析及评论。

本报告从能源行业事件分析；竞争环境、竞争对手、行业数据等几个方面进行了分析评论。

本报告从能源行业事件分析；竞争环境、竞争对手、行业数据等几个方面进行了分析评论。

DC power systems are electrical structures that supply voltage or current of fixed polarity, either positive or negative. Such systems can be powered by an alternating current (AC) or a direct current (DC) source. A simple DC power system consists of a transformer, rectifier, filter, and regulator, all of which work to provide a constant and ripple-free DC output. DC power systems largely find applications in telecommunications, data centers, and transportation. However, they are also used in the oil and gas, consumer electronics, and automotive industries.

A smart water network is a cohesive set of systems, products, and solutions that enable water utilities to remotely and continuously monitor and diagnose problems related to water distribution. Smart water networks are data-driven by information collected from the physical layers of pumps, pipes, reservoirs, and valves. The data helps optimize various aspects of a water distribution system in terms of pressure management, leak detection, water quality, and network operation. It can also reduce the overall capital expenditure of water utilities by providing real-time data based on water consumption and customer meter readings.

Industrial wastewater is one of the largest sources of pollution in an aquatic environment. During the last century, a huge amount of industrial wastewater was discharged into water bodies，resulting in pollution and hazardous effects on the ecosystem and the human life. The industrial wastewater may differ depending on various industries and discharged contaminants; each sector produces a different combination of pollutants. Water treatment equipment helps in the removal of impurities found in water bodies. The treatment equipment must be designed specifically for the particular type of effluent produced. Seawater, groundwater, municipal water， and wastewater are treated using water treatment equipment. Given its huge benefits, water treatment equipment can be used to address the issue of water scarcity in various parts of the globe. In addition, wastewater that is treated can be reused for other purposes, thus preventing groundwater depletion.

Smart grid sensors are compact electrical devices used to detect and monitor power system equipment. These sensors monitor electrical equipment such as transformers, arrestors, power cables, and other equipment installed in power plants, or substations, along with demand side management in smart grids. In addition, these devices also track the power line temperature and weather conditions around the power cables, and are used to calculate the line's current carrying capacity. They are also used in residential areas and offices to enhance energy efficiency.

为了保证整个电力系统的安全、稳定运行,结合TOPSIS法在权重计算和距离方面的改进,对国内11家发电企业的火电机组运行可靠性进行了综合评价.以中电联公布的2012年上半年机组运行数据为基础,采用改进的本征向量法和信息熵法获得主观权重和客观权重,并将主、客观权重进行融合,采用Minkowski距离代替传统TOPSIS法中的Euclid距离,对各发电企业机组运行可靠性进行了评价和排序.结果表明,改进TOPSIS法是评价火电机组运行可靠性的一种全面有效的综合方法,可为机组安全、稳定运行提供参考。

燃气电厂对热值波动以及热值变化率等气质均有较高要求,但供应燃气电厂的天然气气源种类越来越多,因此日趋复杂的气质(热值或沃泊指数)能否满足燃气电厂严苛的气质要求亟需进一步研究.为此,对2种不同热值气源替换的质换混输过程进行数值模拟,通过瞬时质扩散理论分析和模拟结果数据综合归纳,得出2种不同热值的天然气在质换混输过程中的气质变化规律和有效质扩散系数与雷诺数的关系式,并据此建立了预测质换混输管道沿程热值波动速率的方法,计算结果表明:对于一般输气速度,满足燃气电厂对热值变化率要求的输气距离为1~10km,流速越高所需距离越远.为工程设计提供理论和计算依据。