Research On The Inequality Of Gas Load And The Peak-shaving Methods Of The Typical Cities In The Pearl Delta Of Guangdong

Supply engineering of city gas is a kind of important project concerning the energy structure,environmental protection and city infrastructure. As the present, the project of Guangdong LNG is beginning to put in practice. The Pearl Delta of Guangdong will be gasified by 30 million tons imported LNG in 2006. The research on inequality of the gas usage by city gas consumers and the decision of peak-shaving method is not only related to the optimal design of the whole pipe network , but also is related to whether supply gas to consumer according to their request or not.This paper refers to and consults the fruits of city gas engineering in our country and abroad widely. On the basis of collecting a lot of data connecting the status in quo and the layout of The Pearl Delta of Guangdong, works as follows are developed. On the base of analyzing and studying the recent years' statistical data of Guangzhou, uneven factors of monthly, daily and hour consumption are obtained. Furthermore rational manimal variation of monthly, daily and hour consumption are obtained.This paper summarizes the research evolvement of the estimation on natural gas load and classifies and appraises the methods of the estimation on natural gas load. City gas load is a multi-mode and complicated engineering system. This paper analyzes and estimates the gas load of Shenzhen by using method of time series analysis.Mathematical modes of the static simulation and dynamic simulation for gas pipeline are established, and calculation method is discussed in this paper. After this, programs that calculate volume of gas in line pack are programmed based on static simulation for gas pipeline and those programs are applied into calculating volume of gas in line pack. At the same time this paper explained the program of calculating volume of gas in line pack dynamically.At the last, connecting the fact of Dongguan, the technical economic compassion of four kinds of peak-shaving methods of Dong Guan that is chosen in the beginning, economic and rescannable peak-shaving method is obtained.The writer hope that it can give some suggestions and hope to some gas engineering of The Pearl Delta of Guangdong.