本文選題：分布式能源系統(tǒng)　切入點：能效　出處：《北京建筑大學》2017年碩士論文　論文類型：學位論文

【摘要】：在節(jié)能減排,能源集約化、提高能源使用效率等政策的大背景下,分布式能源成為能源綜合利用的新趨勢,也促成了分布式能源技術不斷的推陳出新。分布式能源其能源主體可為區(qū)域內(nèi)為用戶設施提供電、冷、熱、電等能源,實現(xiàn)能源的綜合配置與優(yōu)化。在應用層面,分布式能源系統(tǒng)的優(yōu)勢有一次性投資相對較低、能量效率高、系統(tǒng)可靠維護簡便等�？蔀橛脩籼峁┚哂休^好經(jīng)濟效益的高質(zhì)量能源供應。論文以某數(shù)據(jù)中心為研究對象,分析了數(shù)據(jù)中心的負荷特點和用能特點,分析了數(shù)據(jù)中心的用能安全性問題。對論文所研究項目的能源供應條件進行了分析,包括電能、天然氣和冷熱源供應情況。在能源供應條件分析的基礎上,進行了供能方案的比較,確定了供能方案。數(shù)據(jù)中心用能特點是設備用電負荷大,同時散熱量大,對供電和供冷保障度要求高。從用能需求分析看,數(shù)據(jù)中心用電負荷需求穩(wěn)定,冷負荷需要全年全天穩(wěn)定提供。根據(jù)數(shù)據(jù)中心的用能特點,采用分布式能源系統(tǒng)能夠提高能源的利用效率。論文對分布式能源系統(tǒng)的技術性、經(jīng)濟性和不確定性進行了分析。經(jīng)過計算分析得到,對項目影響較大的是投資,其次是電價,之后為天然氣價和冷價。論文測算電、冷、熱負荷全年成本支出,負荷分為固定負荷和變動負荷,固定負荷可以相對準確測算出來。影響經(jīng)濟性的因素主要集中在建設合理性與精細化的設備運維中,盡量通過合理的設備配置與技術做到節(jié)能。數(shù)據(jù)中心工程采用分布式能源系統(tǒng),供能系統(tǒng)的保障性高、對能源的綜合利用率高,具有較好的經(jīng)濟性。
[Abstract]:Under the background of the policies of energy saving and emission reduction, energy intensification and improving energy use efficiency, distributed energy has become a new trend of comprehensive utilization of energy. Distributed energy technology has also contributed to the innovation of distributed energy technology. The main energy sources of distributed energy sources can provide energy sources such as electricity, cold, heat, electricity and so on for user facilities in the region, so as to realize the comprehensive configuration and optimization of energy resources. The advantages of distributed energy system include relatively low one-time investment, high energy efficiency, simple system reliability and maintenance, etc. It can provide users with high quality energy supply with better economic benefit. This paper analyzes the load and energy characteristics of the data center, analyzes the security of the energy use in the data center, and analyzes the energy supply conditions of the projects studied in this paper, including electric energy. On the basis of the analysis of the energy supply conditions, the energy supply schemes are compared, and the energy supply schemes are determined. The demand for power supply and cooling guarantee is high. According to the analysis of energy use demand, the demand for electricity load in data center is stable, and the cooling load needs to be provided steadily throughout the year. According to the characteristics of energy use in data center, Using distributed energy system can improve the efficiency of energy utilization. This paper analyzes the technology, economy and uncertainty of distributed energy system. Then the natural gas price and the cold price. The paper calculates the annual cost of electricity, cooling and heat load, the load is divided into fixed load and variable load. The fixed load can be measured relatively accurately. The factors that affect the economy are mainly concentrated in the operation and maintenance of the equipment, which is reasonable and meticulous. The distributed energy system is adopted in the data center project. The energy supply system has high supportability, the comprehensive utilization ratio of energy is high, and it has good economy.
【學位授予單位】：北京建筑大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TU83;TP308;TM61

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