本文選題：分布式能源系統(tǒng)　切入點(diǎn)：能效　出處：《北京建筑大學(xué)》2017年碩士論文　論文類型：學(xué)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(shì),也促成了分布式能源技術(shù)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(shè)施提供電、冷、熱、電等能源,實(shí)現(xiàn)能源的綜合配置與優(yōu)化。在應(yīng)用層面,分布式能源系統(tǒng)的優(yōu)勢(shì)有一次性投資相對(duì)較低、能量效率高、系統(tǒng)可靠維護(hù)簡(jiǎn)便等。可為用戶提供具有較好經(jīng)濟(jì)效益的高質(zhì)量能源供應(yīng)。論文以某數(shù)據(jù)中心為研究對(duì)象,分析了數(shù)據(jù)中心的負(fù)荷特點(diǎn)和用能特點(diǎn),分析了數(shù)據(jù)中心的用能安全性問題。對(duì)論文所研究項(xiàng)目的能源供應(yīng)條件進(jìn)行了分析,包括電能、天然氣和冷熱源供應(yīng)情況。在能源供應(yīng)條件分析的基礎(chǔ)上,進(jìn)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(diǎn)是設(shè)備用電負(fù)荷大,同時(shí)散熱量大,對(duì)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(fù)荷需求穩(wěn)定,冷負(fù)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(diǎn),采用分布式能源系統(tǒng)能夠提高能源的利用效率。論文對(duì)分布式能源系統(tǒng)的技術(shù)性、經(jīng)濟(jì)性和不確定性進(jìn)行了分析。經(jīng)過計(jì)算分析得到,對(duì)項(xiàng)目影響較大的是投資,其次是電價(jià),之后為天然氣價(jià)和冷價(jià)。論文測(cè)算電、冷、熱負(fù)荷全年成本支出,負(fù)荷分為固定負(fù)荷和變動(dòng)負(fù)荷,固定負(fù)荷可以相對(duì)準(zhǔn)確測(cè)算出來。影響經(jīng)濟(jì)性的因素主要集中在建設(shè)合理性與精細(xì)化的設(shè)備運(yùn)維中,盡量通過合理的設(shè)備配置與技術(shù)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(duì)能源的綜合利用率高,具有較好的經(jīng)濟(jì)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(xué)位授予單位】：北京建筑大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TU83;TP308;TM61

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