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首页> 外文会议>American Society of Mechanical Engineers(ASME) Internal Combustion Engine Division Fall Technical Conference; 20050911-14; Ottawa(CA) >ALTERNATIVE CORRECTION FACTOR FOR THE EFFECTS OF INLET AIR HUMIDITY ON NOX FROM AN EMISSIONS REGULATED FOUR-STROKE MEDIUM SPEED DIESEL ENGINE AND COMPARISON WITH OTHER KNOWN FACTORS
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ALTERNATIVE CORRECTION FACTOR FOR THE EFFECTS OF INLET AIR HUMIDITY ON NOX FROM AN EMISSIONS REGULATED FOUR-STROKE MEDIUM SPEED DIESEL ENGINE AND COMPARISON WITH OTHER KNOWN FACTORS

机译：调节四冲程中速柴油机排放的空气湿度对NOx影响的替代校正因子及与其他已知因子的比较

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摘要

With increasingly stringent emissions regulations for NOx and the known tradeoff of fuel consumption with NOx, ensuring the use of appropriate correction factors becomes increasingly significant to the OEM and customer. The Environmental Protection Agency (EPA) has specified in 40CFR Part92 that locomotive engines shall use a NOx correction factor, KNOx = f(K_H), where K_H is the humidity correction factor. This paper will present an alternative NOx humidity correction factor for GE Rail 4-stroke medium speed diesel engines. GE Rail's NOx humidity correction factor will be compared with five other correction factors in a numerical exercise to assess the sensitivity to variations in ambient temperature, ambient pressure, relative humidity and A:F ratio. GE Rail's alternative correction factor provides a 25% reduction in Line Haul Duty Cycle BSNOx variation and a mean BSNOx reduction of 3% as compared with KNOx correction factor from Part92.
机译：随着对NOx排放法规的日益严格以及已知燃料与NOx的权衡，确保使用适当的校正因子对OEM和客户而言变得越来越重要。环境保护局（EPA）在40CFR Part92中规定，机车发动机应使用NOx校正系数，KNOx = f（K_H），其中K_H是湿度校正系数。本文将介绍GE铁路4冲程中速柴油发动机的替代NOx湿度校正系数。在一次数字实验中，将GE Rail的NOx湿度校正因子与其他五个校正因子进行比较，以评估对环境温度，环境压力，相对湿度和A：F比变化的敏感性。与来自Part92的KNOx校正系数相比，GE Rail的替代校正系数使线路牵引占空比BSNOx变化降低了25％，平均BSNOx降低了3％。

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