With high temperature and high pressure in nozzle of wind tunnel , the effect of variable specific heat on nozzle design must be considered 本文針對超音速、高超音速噴管內(nèi)馬赫數(shù)、溫度變化劇烈的特點,研究了比熱容變化對設計噴管型面產(chǎn)生的影響。
The results show that to design a supersonic / hypersonic nozzle of wind tunnel must consider the effect of variable specific heat , which gives reference to nozzle and wind tunnel design 考慮這一因素后,噴管出口馬赫數(shù)接近設計馬赫數(shù),其設計精度有較大提高。本方法可為超音速高超聲速噴管設計和反設計提供參考。
First , based on reading lots of references biomass gasification technology is discussed in detail including the basic principle of biomass gasification , categories and working principle of biomass gasification equipment and ancillary system of biomass gasification in this paper . second , performance calculation modules of sub - systems such as gas turbine , heat recovery steam generator , steam turbine and dryer in the bigcc system are built , especially , performance calculation modules of gas turbine fueling biomass fuel gas based on variable specific heat and biomass dryer are built . in the mean time , program of performance calculation modules for sub - systems is developed using delphi 6 . 0 首先,本文在閱讀大量文獻基礎上對生物質(zhì)氣化技術(shù)進行了詳細的闡述,主要包括:生物質(zhì)氣化基本原理、生物質(zhì)氣化設備的種類和工作原理以及生物質(zhì)氣化的附屬系統(tǒng);其次,建立了bigcc系統(tǒng)中各個子系統(tǒng)燃氣輪機、余熱鍋爐、蒸汽輪機、干燥器等的性能計算模型,特別建立了基于變比熱的燒生物質(zhì)燃料氣的燃氣輪機性能計算模型和生物質(zhì)干燥器的性能計算模型,并用delphi6