本文選題：分布式能源 + 恒壁溫儲氣模型　； 參考：《中國電機工程學(xué)報》2016年12期

【摘要】：為更準確地計算先進絕熱壓縮空氣儲能系統(tǒng)的性能參數(shù)并探究循環(huán)過程中儲氣室內(nèi)溫度、壓力變化情況,基于熱力學(xué)第一定律與理想氣體方程,提出更切合實際的恒壁溫儲氣模型,構(gòu)建整個儲能系統(tǒng)熱力學(xué)模型�；诖四Ｐ�,在給定的空氣壓縮機與透平功率下,對系統(tǒng)性能進行了計算;分析了儲氣壓比、儲釋能間隔時間等參數(shù)對系統(tǒng)性能的影響;直觀地揭示了循環(huán)過程中儲氣室內(nèi)溫度、壓力隨時間變化情況。結(jié)果表明:等幅增大儲氣壓比與降低儲氣壓比差可提高系統(tǒng)循環(huán)效率,只提高最大儲氣壓比會使效率下降;隨對流換熱系數(shù)增大,壓縮功增大,膨脹功與循環(huán)效率出現(xiàn)"拐點";儲釋能間隔時間增大會降低系統(tǒng)效率,當對流換熱系數(shù)較小時,對該時間的選擇還應(yīng)考慮儲氣參數(shù)的循環(huán)穩(wěn)定性。
[Abstract]:In order to calculate more accurately the performance parameters of the advanced adiabatic compressed air energy storage system and to investigate the change of temperature and pressure in the gas storage chamber during the cycle, based on the first law of thermodynamics and the ideal gas equation,A more practical constant wall temperature gas storage model is proposed and the thermodynamic model of the whole energy storage system is constructed.Based on this model, the performance of the system is calculated under the given air compressor and turbine power, and the effect of the parameters such as the ratio of storage pressure to air pressure and the interval time between storage and release energy on the system performance is analyzed.The change of temperature and pressure of gas storage chamber with time is revealed intuitively.The results show that the cycle efficiency of the system can be improved by increasing the ratio of storage to air pressure and decreasing the difference of the ratio of storage air pressure to equal amplitude, but only by increasing the ratio of maximum storage pressure to air pressure, and the compression work increases with the increase of convection heat transfer coefficient.When the heat transfer coefficient of convection is small, the cycle stability of gas storage parameters should be taken into account when the heat transfer coefficient of convection is small.
【作者單位】： 電站設(shè)備狀態(tài)監(jiān)測與控制教育部重點實驗室(華北電力大學(xué));
【基金】：中央高�；究蒲袠I(yè)務(wù)專項資金項目(2015MS107)~~
【分類號】：TM73
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本文編號：1750732