需要金幣:![]() ![]() |
資料包括:完整論文 | ![]() |
![]() |
轉(zhuǎn)換比率:金額 X 10=金幣數(shù)量, 例100元=1000金幣 | 論文字?jǐn)?shù):38415 | ![]() | |
折扣與優(yōu)惠:團(tuán)購(gòu)最低可5折優(yōu)惠 - 了解詳情 | 論文格式:Word格式(*.doc) | ![]() |
摘 要:對(duì)于人類社會(huì)而言,所謂水源危機(jī),實(shí)質(zhì)是指淡水危機(jī)。解決水源危機(jī)的根本出路,只能是向占據(jù)地球水量97%以上的海洋索取淡水。 海水淡化是21世紀(jì)解決水源緊缺的根本措施。太陽(yáng)能是太陽(yáng)內(nèi)部連續(xù)不斷的核聚變反應(yīng)過(guò)程產(chǎn)生的能量,既是一次能源,又是可再生能源。它資源豐富,既可免費(fèi)使用,又無(wú)需運(yùn)輸,對(duì)環(huán)境無(wú)任何污染。太陽(yáng)能海水淡化方法可分為直接法和間接法兩大類。直接法是將集能部分和脫鹽部分集于一體的方法。而間接法是將集能部分和脫鹽部分分開(kāi)的方法。一般來(lái)說(shuō),直接法占地面積較大,且效率低,在早期的海水淡化中應(yīng)用較多,目前開(kāi)發(fā)的太陽(yáng)能海水淡化系統(tǒng)主要以間接法為主。 本文設(shè)計(jì)一種太陽(yáng)能光伏發(fā)電反滲透海水淡化系統(tǒng),該系統(tǒng)主要由太陽(yáng)能供電系統(tǒng)和反滲透系統(tǒng)組成,太陽(yáng)能供電系統(tǒng)則由太陽(yáng)能電池、蓄電池和直交變換器組成;脫鹽系統(tǒng)則由海水取水、預(yù)處理、反滲透系統(tǒng)和排水系統(tǒng)等組成。主要研究?jī)?nèi)容有:1)太陽(yáng)能供電系統(tǒng)的初步設(shè)計(jì),主要包括太陽(yáng)能電池負(fù)荷計(jì)算、蓄電池組負(fù)荷計(jì)算及選型、交直流逆變器的選型等;2)脫鹽系統(tǒng)的設(shè)計(jì),主要包括海水取水、預(yù)處理和反滲透系統(tǒng)的設(shè)計(jì),主要設(shè)備(如高壓泵、反滲透膜、過(guò)濾器等)的選型;3)太陽(yáng)能光伏發(fā)電反滲透海水淡化系統(tǒng)的性能初步分析,主要包括系統(tǒng)的單位能量產(chǎn)水率和日產(chǎn)水率等主要性能參數(shù)的計(jì)算。 關(guān)鍵詞:海水淡化,太陽(yáng)能光伏發(fā)電,反滲透系統(tǒng)
Abstract:For the human society, the so-called water crisis is real. Fundamental way to solve the water crisis can only be to occupy more than 97% of Earth's ocean water obtained from fresh water. Desalination to solve water shortage in the 21st century, the fundamental measures. Solar energy is the sun's nuclear fusion reactions within a continuous process of the energy generated by both the primary energy, but also renewable energy. It is rich in resources, both free, and no transport, no pollution to the environment. Solar desalination methods can be divided into direct and indirect two categories. Direct method is to set and partially set in one part of the desalination method. The indirect method is to set and partially separated from the method of desalination. In general, the larger area of ??the direct method, and the low efficiency of water desalination in the early application of more, the development of solar desalination system based mainly on indirect methods. This design of a solar photovoltaic reverse osmosis desalination system, the system consists of solar power supply system and reverse osmosis system components, solar power system from solar cells, batteries, and orthogonal converter composition; from sea-water desalination system , Pretreatment, reverse osmosis systems and drainage systems and other components. The main contents are: 1) the preliminary design of solar power supply system, including solar load calculations, load calculations and selection of batteries, AC-DC inverter type selection; 2) desalination system design, including sea water, pretreatment and reverse osmosis system design, major equipment (such as high pressure pumps, reverse osmosis membranes, filters, etc.) selection; 3) solar photovoltaic reverse osmosis desalination preliminary analysis of performance of the system, including system Water production rate per unit energy and water production rate at the main performance parameters of the calculation. Keyword: Sea water desalination, Solar photovoltaic power generation, Reverse osmosis system |