發(fā)布時(shí)間：2018-10-18 10:43

【摘要】：隨著能源工業(yè)的快速發(fā)展，分布式能源技術(shù)由于其能效高、節(jié)能、經(jīng)濟(jì)、安全可靠等優(yōu)點(diǎn)而受到人們的重視。根據(jù)分布式能源系統(tǒng)的特點(diǎn)，對(duì)“以電定熱（冷）”和“以熱（冷）定電”兩種運(yùn)行方式的系統(tǒng)進(jìn)行了能效計(jì)算和優(yōu)化分析。 分析了以內(nèi)燃機(jī)和燃?xì)廨啓C(jī)為核心的分布式能源系統(tǒng)的應(yīng)用特點(diǎn)和工作原理。建立了分布式能源系統(tǒng)和傳統(tǒng)能源系統(tǒng)的一次能源利用率、相對(duì)節(jié)能率和效率的計(jì)算模型，討論了冷（熱）電比對(duì)分布式能源系統(tǒng)一次能源利用率的影響。 以燃?xì)廨啓C(jī)+吸收式溴化鋰機(jī)組的分布式能源系統(tǒng)為例，從供需平衡的角度，建立了“以電定熱（冷）”和“以熱（冷）定電”兩種不同的運(yùn)行方式下分布式能源系統(tǒng)的能效計(jì)算模型，分析在不同冷（熱）電比的情況下，分布式能源系統(tǒng)的能效變化情況，得出在冷（熱）電比小于最佳冷電比時(shí)，應(yīng)采用“以熱（冷）定電”的運(yùn)行方式；而在冷電比大于最佳冷電比時(shí)，應(yīng)采用“以電定熱（冷）”運(yùn)行方式。 以武漢市某產(chǎn)業(yè)園區(qū)為例，分析不同發(fā)電效率下分布式能源系統(tǒng)的供能能力和能效，，并配置了四種分布式能源系統(tǒng)方案和三種傳統(tǒng)能源系統(tǒng)，進(jìn)行了各方案能效和初投資的分析比較，比較不同方案的分布式能源系統(tǒng)的優(yōu)劣，給出推薦方案。
[Abstract]:With the rapid development of energy industry, distributed energy technology has attracted much attention because of its advantages of high energy efficiency, energy saving, economy, safety and reliability. According to the characteristics of the distributed energy system, the energy efficiency calculation and optimization analysis of the two operation modes of "electric heating (cooling)" and "heating (cooling) fixing power" are carried out. The application characteristics and working principle of distributed energy system based on internal combustion engine and gas turbine are analyzed. A calculation model of primary energy efficiency, relative energy saving rate and efficiency of distributed energy system and traditional energy system is established, and the influence of the ratio of cold (thermal) to electricity on primary energy efficiency of distributed energy system is discussed. Taking the distributed energy system of absorption lithium bromide unit of gas turbine as an example, from the point of view of balance of supply and demand, The energy efficiency calculation model of distributed energy system under two different operation modes of "electric heating (cooling)" and "heating (cooling)" is established, and the energy efficiency calculation model of distributed energy system under different cold (thermal) power ratios is analyzed. The change of energy efficiency of distributed energy system shows that when the ratio of cold (heat) to electricity is less than the optimal ratio of cold to electricity, the operation mode of "determining power by heat" should be adopted, while when the ratio of cold to electricity is greater than the optimum ratio of cold to electricity, The "electric heating (cooling)" operation mode should be adopted. Taking an industrial park in Wuhan as an example, the energy supply capacity and energy efficiency of distributed energy system under different generation efficiency are analyzed, and four distributed energy system schemes and three traditional energy systems are configured. The energy efficiency and initial investment of different schemes are analyzed and compared, and the advantages and disadvantages of distributed energy systems with different schemes are compared, and the recommended schemes are given.
【學(xué)位授予單位】：武漢科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM61

【參考文獻(xiàn)】

相關(guān)期刊論文 前2條

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2 韓曉平;;分布式能源系統(tǒng)的稱謂與定義[J];中國電力教育;2010年02期

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