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西北鄉(xiāng)域太陽能供暖輔助熱源適宜性分析

發(fā)布時間:2018-02-28 21:16

  本文關(guān)鍵詞: 太陽能供暖 西北鄉(xiāng)域 輔助熱源 適宜性優(yōu)選 模糊評價方法 出處:《西安建筑科技大學》2017年碩士論文 論文類型:學位論文


【摘要】:我國西北大部分地區(qū)太陽能資源豐富,鄉(xiāng)域建筑多為低層住宅,單位建筑面積分攤的屋頂集熱面積大,供暖保證率高,適宜于發(fā)展太陽能供暖技術(shù)。受太陽能輻射波動性、不連續(xù)性、能流密度低等因素影響,需與其它熱源聯(lián)合使用以維持系統(tǒng)穩(wěn)定。而西北不同地域太陽能供暖輔助熱源受當?shù)啬茉船F(xiàn)狀、熱源技術(shù)、經(jīng)濟特性及環(huán)境效益等因素影響。因此,尋求合理的太陽能供暖輔助熱源選取方法,是西北鄉(xiāng)域推廣太陽能供暖技術(shù)的關(guān)鍵問題。通過對西北鄉(xiāng)域地區(qū)供暖現(xiàn)狀的分析研究,太陽能供暖系統(tǒng)可與燃煤鍋爐、燃氣壁掛爐、燃油鍋爐、電鍋爐、空氣源熱泵、生物質(zhì)鍋爐等多種輔助熱源形式聯(lián)合運行。本文根據(jù)太陽能資源分布和建筑氣候分區(qū)將西北地區(qū)劃分為七類典型區(qū)域,以各區(qū)域典型建筑為例建立供熱系統(tǒng)模型,從能源支撐、經(jīng)濟特性、技術(shù)特性及環(huán)境效益等方面綜合分析了上述太陽能供暖輔助熱源,并對其進行模糊定量處理;趙eb sever設計適宜性優(yōu)選程序,便于根據(jù)當?shù)刭Y源環(huán)境及自身情況進行自主熱源形式選擇。獲得了以下研究成果:(1)提出了西北鄉(xiāng)域太陽能聯(lián)合生物質(zhì)能供暖資源可行性優(yōu)選等級。根據(jù)分析結(jié)果,新疆、寧夏自治區(qū)屬于可行性Ⅰ類地區(qū),聯(lián)合供暖保證率分別達到96%、100%,陜西地區(qū)屬于可行性Ⅱ~Ⅲ類地區(qū),聯(lián)合供暖保證率可達到78%,青海、甘肅地區(qū)分別為76%、56%,屬于Ⅲ~Ⅴ類地區(qū)。西北鄉(xiāng)域太陽能與生物質(zhì)能聯(lián)合供暖的資源可行性較高。(2)建立了輔助熱源適宜性評價體系。在連續(xù)供暖情況下,生物質(zhì)鍋爐最適宜作為太陽能供暖輔助熱源,在當?shù)刈杂猩镔|(zhì)儲量較豐富時可優(yōu)先考慮。柴油鍋爐、電鍋爐的適宜性評價優(yōu)度最低,生物質(zhì)鍋爐、燃煤鍋爐的適宜性總優(yōu)度值隨經(jīng)濟性權(quán)重的降低而降低。(3)對調(diào)查問卷數(shù)據(jù)進行了統(tǒng)計分析,發(fā)現(xiàn)經(jīng)濟特性在能源、技術(shù)、經(jīng)濟、環(huán)境效益四個主題層指標中影響最大,占比0.34~0.54;且輔助熱源之間的總優(yōu)度差值隨經(jīng)濟性權(quán)重的增大而增大。收入越高、可接受供暖投資越大的家庭,技術(shù)特性、環(huán)境效益占比高,對新型供暖形式更為熱衷;反之,更易接受傳統(tǒng)供暖模式。(4)基于Web Sever設計了適宜性優(yōu)選程序,并以咸陽市、玉樹州、烏魯木齊市等地的農(nóng)村建筑為例應用太陽能聯(lián)合供暖系統(tǒng),將當?shù)刭Y源環(huán)境現(xiàn)狀帶入系統(tǒng)運行檢驗,計算結(jié)果顯示符合要求。優(yōu)選程序可便于當?shù)鼐用窬C合考慮主觀、客觀因素選擇適宜的輔助熱源類型。
[Abstract]:There are abundant solar energy resources in most areas of northwest China, most of the buildings in rural area are low-rise residential buildings, the roof heat collecting area is large and the heating guarantee rate is high, which is suitable for the development of solar energy heating technology, which is subject to the fluctuation of solar energy radiation. Discontinuity, low energy flow density and other factors need to be used in conjunction with other heat sources to maintain the stability of the system. Therefore, it is a key problem to popularize solar heating technology in northwest rural area by seeking a reasonable method of selecting auxiliary heat source for solar heating. Through the analysis and study of heating situation in northwest rural area, Solar heating system can be connected with coal-fired boiler, gas wall hanging furnace, oil-fired boiler, electric boiler, air-source heat pump, Based on the distribution of solar energy resources and the climate zoning of buildings, the northwest region is divided into seven typical regions. Taking typical buildings in each region as an example, the heating system model is established, and the energy support is used to support the system. The economic characteristics, technical characteristics and environmental benefits of the above solar heating auxiliary heat sources are comprehensively analyzed, and the fuzzy quantitative treatment is carried out. Based on web sever, the optimum selection program for suitability is designed. It is convenient to choose the form of independent heat source according to the local resources, environment and its own conditions. The following research results are obtained: 1) the grade of feasibility selection of solar energy combined biomass energy heating resources in northwest rural area is put forward. According to the analysis results, Xinjiang, The Ningxia Autonomous region belongs to the Feasibility 鈪,

本文編號:1549000

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