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IN-SITU MEASUREMENT OF FACTORS AFFECTING CO AND NO_2 EMISSIONS FROM AN INSTANTANEOUS HOT-WATER HEATER

机译：瞬时热水中影响CO和NO_2排放的因素的原位测量

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We have performed spatially resolved optical diagnostic measurements of temperature and the concentrations CO and NO in a commercially available instantaneous hot-water heater, modified for optical access. Laser-induced fluorescence measurements indicate only marginal NO_2 formation in the combustion chamber at 19 kW, but significant conversion at 5.5 kW. Evidence obtained by LIF of significant fuel leakage at the edges of the burner is observed, which is confirmed by independent probe measurements. The fate of the NO_2 and CO formed in the combustion chamber is shown to be determined by the temperature distribution and its variation with thermal load. At high loads, the temperature in the exceeds 1400 K everywhere in the combustion chamber, oxidizing the CO and preventing the formation of NO_2. At low load, the temperature between the burner blades never exceeds 800 K, allowing substantial CO and NO_2 emission.

机译：我们已经对市售的瞬时热水加热器进行了空间分辨光学诊断，以对温度以及CO和NO的浓度进行光学诊断测量，并对其进行了修改以实现光学访问。激光诱导的荧光测量表明，在19 kW时，燃烧室中仅形成少量NO_2，而在5.5 kW时，转化率显着。通过LIF获得的证据表明，燃烧器边缘燃料明显泄漏，这通过独立的探头测量得到了证实。燃烧室中形成的NO_2和CO的结局由温度分布及其随热负荷的变化决定。在高负荷下，燃烧室内各处的温度都超过1400 K，从而氧化了CO并阻止了NO_2的形成。在低负载下，燃烧器叶片之间的温度永远不会超过800 K，从而导致大量的CO和NO_2排放。

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来源
《2001 International gas research conference》|2001年|p.1-10|共10页
会议地点 Amsterdam(NL);Amsterdam(NL)
作者
H. de Vries; A.V. Mokhov; H.B. Levinsky;
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作者单位

Gasunie Research, N.V. Nederlandse Gasunie;

rnRijksuniversiteit Groningen Groningen, The Netherlands;

rnGasunie Research, N.V. Nederlandse Gasunie;

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正文语种 eng
中图分类石油产品;
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IN-SITU MEASUREMENT OF FACTORS AFFECTING CO AND NO_2 EMISSIONS FROM AN INSTANTANEOUS HOT-WATER HEATER

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