發(fā)布時(shí)間：2018-03-14 08:31

  本文選題：聚風(fēng)發(fā)電　切入點(diǎn)：聚光太陽(yáng)能熱利用　出處：《廣西大學(xué)》2017年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：太陽(yáng)能和風(fēng)能所代表的新能源,具有儲(chǔ)量豐富、分布廣泛和清潔干凈的優(yōu)點(diǎn)。目前兩種能源利用方式相對(duì)獨(dú)立,同一地區(qū)往往只能對(duì)單一資源進(jìn)行利用無(wú)法進(jìn)行優(yōu)勢(shì)互補(bǔ)。為了實(shí)現(xiàn)對(duì)太陽(yáng)能和風(fēng)能資源的綜合利用,本文構(gòu)建了聚風(fēng)發(fā)電與聚光太陽(yáng)能熱利用聯(lián)合系統(tǒng)。該系統(tǒng)同時(shí)具有聚風(fēng)發(fā)電和聚光太陽(yáng)能熱利用兩種功能,可提高風(fēng)力發(fā)電機(jī)的輸出功率,同時(shí)收集太陽(yáng)熱能用于供熱,實(shí)用性較好。本文主要以實(shí)驗(yàn)分析和計(jì)算機(jī)仿真兩種方式對(duì)該系統(tǒng)的性能進(jìn)行研究。實(shí)驗(yàn)部分對(duì)來(lái)流風(fēng)速在2～7m/s范圍內(nèi)聚風(fēng)發(fā)電輸出功率和日照強(qiáng)度在400～900W/m2范圍內(nèi)聚光太陽(yáng)能熱利用的吸熱功率進(jìn)行研究。在來(lái)流風(fēng)速為7m/s的工況下,安裝聚風(fēng)罩后風(fēng)力發(fā)電機(jī)輸出功率由14.0W升高到25.9W,太陽(yáng)輻射強(qiáng)度在900W/m2時(shí)該系統(tǒng)的集熱裝置輸出功率可達(dá)223.0W,實(shí)現(xiàn)了太陽(yáng)能和風(fēng)能的有效利用。仿真分析部分以ANSYS Workbench 15.0為仿真平臺(tái),對(duì)照實(shí)物建立了1:1的仿真模型對(duì)聚風(fēng)發(fā)電的性能進(jìn)行仿真研究。仿真分析部分沒(méi)有局限于對(duì)空氣流經(jīng)聚風(fēng)罩后所產(chǎn)生的流場(chǎng)的分析,而是根據(jù)葉片扭矩計(jì)算出輸出功率作為輸出性能的評(píng)價(jià)指標(biāo)。對(duì)比分析了 FLUENT多重參考系模型、CFX浸入實(shí)體模型、CFX固結(jié)轉(zhuǎn)子模型仿真效果,其中CFX固結(jié)轉(zhuǎn)子模型模擬結(jié)果和實(shí)驗(yàn)數(shù)據(jù)最為吻合。根據(jù)仿真計(jì)算結(jié)果在來(lái)流風(fēng)速為10m/s時(shí)該聚風(fēng)發(fā)電模型的輸出功率達(dá)到52.3W與相同葉輪直徑風(fēng)力發(fā)電機(jī)相比提高了41.0%。本文的實(shí)驗(yàn)和仿真結(jié)果為綜合利用風(fēng)能和太陽(yáng)能提供指導(dǎo)。
[Abstract]:The new solar and wind energy represented, with abundant, widely and clean. The distribution of the current two kinds of energy use is relatively independent, the same area only can not use complementary advantages of single resource. In order to realize the comprehensive utilization of solar and wind energy resources, this paper constructs the wind power generation and the spotlight the use of solar thermal system. The system also has the wind power generation and concentrating solar thermal use two kinds of function, can improve the output power of the wind turbine, at the same time to collect the sun's heat for heating, good practicability. In this paper, experimental analysis and computer simulation in two ways on the performance of the system was studied. The experimental part of the wind speed in the 2 ~ 7m/s output power within wind power and sunlight intensity in 400 to use concentrating solar endothermic power within the range of 900W/m2 in Study on wind speed is 7m/s. Under the condition of installation of the wind collection cover after the wind generator output power increased from 14.0W to 25.9W, the intensity of solar radiation in the 900W/m2 when the collector of the system output power up to 223.0W, realize the effective utilization of solar energy and wind energy. The simulation analysis using ANSYS Workbench 15 as the simulation platform physical control, established the simulation model of the 1:1 simulation study on the performance of wind power generation. The simulation analysis is not limited to the air flowing through the flow field generated by the wind cover together, but according to the blade torque calculated output power output performance as the evaluation index. A comparative analysis of FLUENT multiple reference frame model. In the CFX entity model, CFX consolidation rotor model simulation results, CFX consolidation which is most consistent with the rotor model simulation results and experimental data. According to the simulation result in wind speed For 10m/s, the output power of the gathering wind power generation model reaches 52.3W, which is increased by 41.0%. compared with that of the same impeller diameter wind generator. The experimental and simulation results in this paper provide guidance for the comprehensive utilization of wind energy and solar energy.

【學(xué)位授予單位】：廣西大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TM614;TK519

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本文編號(hào)：1610413