A static simulation model of power plant boiler system performance is built up byusing the methods of process system engineering. The primary research is proceeded in thesubsystem models, the decomposition method of s...A static simulation model of power plant boiler system performance is built up byusing the methods of process system engineering. The primary research is proceeded in thesubsystem models, the decomposition method of subsystems and the cutting and convergencestrategy of recycle loops. The corresponding software for simulating the performance of boilersystem is developed. Taking the 670T/h boiler set maed in China in the 100% load pointand the 70% load point are calculated by using our model,the results sre checked with thedata provided by producer. It is further proven that the performance simulation modelhasmore accuracy in application and can meet the reqirements of the unit performance analysisand the prediction of operation behavior.展开更多
As the biggest agricultural country, China has an abundant rice straw energy resource. The characteristics of typical china rice straws are presented as high moisture contents, high volatile contents, high ash content...As the biggest agricultural country, China has an abundant rice straw energy resource. The characteristics of typical china rice straws are presented as high moisture contents, high volatile contents, high ash contents and low bulk density. At present, rice straw is mainly used as fuel, feedstuff, fertilizer and industrial raw material. With improved living conditions in rural areas, farmers tend to rely more on commercial fuel, which leads to even more open field burning of rice straw, and brings air pollutions and potential energy waste as well. The Chinese government is studying relevant policies on acceleration of comprehensive utilization of rice straw with the goal of utilization rate exceeding 80% in 2015. In this paper, focus is on the combustion of rice straw to extract energy, and related challenges face to china is put forward in this paper also.展开更多
文摘A static simulation model of power plant boiler system performance is built up byusing the methods of process system engineering. The primary research is proceeded in thesubsystem models, the decomposition method of subsystems and the cutting and convergencestrategy of recycle loops. The corresponding software for simulating the performance of boilersystem is developed. Taking the 670T/h boiler set maed in China in the 100% load pointand the 70% load point are calculated by using our model,the results sre checked with thedata provided by producer. It is further proven that the performance simulation modelhasmore accuracy in application and can meet the reqirements of the unit performance analysisand the prediction of operation behavior.
文摘As the biggest agricultural country, China has an abundant rice straw energy resource. The characteristics of typical china rice straws are presented as high moisture contents, high volatile contents, high ash contents and low bulk density. At present, rice straw is mainly used as fuel, feedstuff, fertilizer and industrial raw material. With improved living conditions in rural areas, farmers tend to rely more on commercial fuel, which leads to even more open field burning of rice straw, and brings air pollutions and potential energy waste as well. The Chinese government is studying relevant policies on acceleration of comprehensive utilization of rice straw with the goal of utilization rate exceeding 80% in 2015. In this paper, focus is on the combustion of rice straw to extract energy, and related challenges face to china is put forward in this paper also.
