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下吸式固定床生物質(zhì)氣化溫度場和組分場分布特性
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山東省自然科學(xué)基金資助項(xiàng)目(2009ZRA01100)


Temperature Distribution and Gas Composition of Biomass Gasification in Downdraft Fixed Bed Gasifier
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    摘要:

    首先采用多維數(shù)值模擬方法解析了下吸式固定床反應(yīng)器生物質(zhì)氣化反應(yīng)的發(fā)展過程，并通過主動配氣下吸式固定床的氣化試驗(yàn)結(jié)果驗(yàn)證了該數(shù)值解析方法的可行性,。在此基礎(chǔ)上，解析了氣化過程中爐內(nèi)溫度場和組分場的分布特性,。結(jié)果表明，空氣當(dāng)量比RER是影響下吸式固定床氣化過程氣化特性的重要因素，并且對于爐內(nèi)溫度場分布和氣化產(chǎn)氣組分場的最優(yōu)取值范圍為0.24～0.28。

    Abstract:

    The development process of air biomass gasification in a down-draft fixed bed gasifier was analyzed by using multi-dimensional numerical simulation method firstly and was proved to be feasible by the experimental results. Then based on the research above, the influence of the equivalence ratio RER on the temperature distribution over the entire gasifier and gas composition of the biomass gasification were investigated and predicted by numerical simulation, respectively. The results indicate that RER has significant influence on the gasification characteristics and the best range of RER is 0.24～0.28.

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蓋超,董玉平.下吸式固定床生物質(zhì)氣化溫度場和組分場分布特性[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2012,43(5):91-96. Gai Chao, Dong Yuping. Temperature Distribution and Gas Composition of Biomass Gasification in Downdraft Fixed Bed Gasifier[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(5):91-96.

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  • 在線發(fā)布日期: 2012-06-07
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