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柴油機噴油助燃再生系統(tǒng)微粒捕集器油氣匹配研
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on Fuel-air Matching Forms in Burner-type Diesel Particulate Filter
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    摘要:

    基于自行設計的微粒捕集器（DPF）噴油助燃再生系統(tǒng)，對燃燒器內(nèi)以不同油氣比混合燃燒后氣體與柴油機排氣混合形成的高溫廢氣溫度進行試驗研究，并采用過濾體孔道內(nèi)的熱再生模型，對DPF噴油助燃再生過程進行數(shù)值模擬，模擬結(jié)果與DPF再生試驗數(shù)據(jù)吻合良好。根據(jù)再生過程的仿真結(jié)果，以怠速工況下DPF再生時過濾體壁面峰值溫度、溫度梯度及再生時間等為條件，研究噴油助燃再生方式下燃燒器的油氣配比問題，怠速工況下再生時油氣比取0.25～0.16時能夠?qū)崿F(xiàn)合理匹配。

    Abstract:

    Based on self designed burner-type system diesel particulate filter (DPF), the temperature of both gas in burner mixed with combusted combustion gas by several fuel-air matching forms and diesel exhaust gas was experimentally studied. The pyrogenation regeneration model for a channel of DPF was used to obtain the regeneration computational result, which is verified to match with experimental results well. Further, according to simulation results, the problem of fuel-air matching forms on idle condition was analyzed in regeneration performance requirements, such as wall maximum temperature, temperature gradient, regeneration time and so on, to achieve the reasonable matching for burner-type DPF.

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龔金科,吁璇,伏軍,劉云卿,余明果.柴油機噴油助燃再生系統(tǒng)微粒捕集器油氣匹配研[J].農(nóng)業(yè)機械學報,2010,41(4):1-5. on Fuel-air Matching Forms in Burner-type Diesel Particulate Filter[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(4):1-5.

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