本文選題：復(fù)合能源系統(tǒng) + 測(cè)試分析��； 參考：《天津大學(xué)》2014年碩士論文

【摘要】：北方城鎮(zhèn)供熱能耗是我國(guó)建筑能耗的重要組成部分,也是建筑節(jié)能的重點(diǎn)。與燃煤等傳統(tǒng)供熱系統(tǒng)相比,復(fù)合能源系統(tǒng)往往包含如熱泵、熱電聯(lián)產(chǎn)等技術(shù),不僅利用可再生能源,而且能源利用效率也較高。然而隨著系統(tǒng)的增多,聯(lián)合運(yùn)行參數(shù)變得復(fù)雜起來(lái),系統(tǒng)實(shí)際運(yùn)行效率往往很低;再加上復(fù)合能源系統(tǒng)實(shí)際運(yùn)行的分析較少,系統(tǒng)實(shí)際運(yùn)行的性能很難保證。復(fù)合能源系統(tǒng)運(yùn)行策略優(yōu)化存在很大的研究空間。針對(duì)上述問(wèn)題,筆者通過(guò)測(cè)試,獲得了某能源站復(fù)合能源系統(tǒng)整個(gè)供暖季的測(cè)試數(shù)據(jù),主要對(duì)復(fù)合能源系統(tǒng)供熱實(shí)際運(yùn)行效果、運(yùn)行策略優(yōu)化以及優(yōu)化后的節(jié)能效果進(jìn)行分析。首先文章基于本復(fù)合能源系統(tǒng)中的地?zé)崽菁?jí)利用系統(tǒng)、水源熱泵系統(tǒng)和地源熱泵系統(tǒng),提出了能源站總體和子系統(tǒng)的供熱能效分析指標(biāo)以及指標(biāo)的求解方法,通過(guò)能效分析指標(biāo)可以透徹的了解系統(tǒng)的運(yùn)行現(xiàn)狀以及能效情況,再經(jīng)過(guò)分析即可得到系統(tǒng)的實(shí)際運(yùn)行策略。接著介紹了測(cè)試能源站的系統(tǒng)概況以及對(duì)復(fù)合能源系統(tǒng)的供熱測(cè)試概況,并通過(guò)上一部分提出的能效分析指標(biāo)對(duì)本系統(tǒng)進(jìn)行供熱現(xiàn)狀分析,得到系統(tǒng)實(shí)際的能耗情況、能效情況和運(yùn)行策略情況。接著建立了各子系統(tǒng)供熱主要的設(shè)備模型:板式換熱器模型、熱泵機(jī)組模型和水泵模型,并通過(guò)實(shí)測(cè)數(shù)據(jù)得到反映各個(gè)設(shè)備性能特點(diǎn)的公式。然后提出了一套完整的復(fù)合能源系統(tǒng)供熱運(yùn)行策略優(yōu)化研究的理論方法,優(yōu)化方法共包含三個(gè)階段:第一階段為子系統(tǒng)選擇優(yōu)化方法的確定,第二階段為子系統(tǒng)中設(shè)備選擇優(yōu)化方法的確定,第三階段為設(shè)備參數(shù)設(shè)置優(yōu)化方法的確定。最后根據(jù)復(fù)合能源系統(tǒng)的優(yōu)化方法制定出本復(fù)合能源系統(tǒng)可實(shí)現(xiàn)的最佳運(yùn)行策略,并將優(yōu)化后運(yùn)行策略與實(shí)際運(yùn)行策略進(jìn)行對(duì)比,通過(guò)對(duì)供熱能效分析指標(biāo)的分析,得到復(fù)合能源系統(tǒng)最佳運(yùn)行策略下的節(jié)能效果。
[Abstract]:Heating energy consumption in northern cities and towns is an important part of building energy consumption in China, and is also the focus of building energy conservation. Compared with traditional heating systems such as coal burning, composite energy systems often include technologies such as heat pump and cogeneration of heat and power, which not only use renewable energy, but also have higher energy efficiency. However, with the increase of the system, the joint operation parameters become more and more complicated, and the actual operation efficiency of the system is often very low. In addition, the analysis of the actual operation of the composite energy system is less, the performance of the system is difficult to guarantee. There is great space for research on the optimization of operation strategy of complex energy system. In view of the above problems, the author obtained the test data of the whole heating season of the compound energy system of a certain energy station through the test, mainly analyzed the actual operation effect, the operation strategy optimization and the optimized energy saving effect of the compound energy system. Firstly, based on the geothermal cascade utilization system, the water source heat pump system and the ground source heat pump system in the compound energy system, the energy efficiency analysis index of the total and subsystem of the energy station and the solution method of the index are put forward. Through the energy efficiency analysis index, we can understand the current situation and energy efficiency of the system thoroughly, and then get the actual operation strategy of the system through the analysis. Then it introduces the general situation of the system of the test energy station and the general situation of the heating test of the compound energy system, and through the energy efficiency analysis index put forward in the previous part, analyzes the current situation of the system, and obtains the actual energy consumption of the system. Energy efficiency and operational strategy. Then, the main equipment models of each subsystem are established: plate heat exchanger model, heat pump unit model and pump model, and the formulas reflecting the characteristics of each equipment are obtained by the measured data. Then a complete set of theoretical methods for the optimization of heating operation strategy of the composite energy system is proposed. The optimization method consists of three stages: the first stage is the determination of the optimization method for the subsystem. The second stage is the determination of the equipment selection optimization method in the subsystem, and the third stage sets the optimization method for the equipment parameters. Finally, according to the optimization method of the compound energy system, the optimal operation strategy of the compound energy system can be worked out, and the optimized operation strategy is compared with the actual operation strategy, and through the analysis of the energy efficiency analysis index of the heat supply, The energy saving effect under the optimal operation strategy of the composite energy system is obtained.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TU83

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