cold start emissions

With a compact, power, light weight, low fuel consumption, high reliability and cold start performance, versatility, low emissions, but also has maintained a long cycle, the use of low cost.

具有结构紧凑、功率大、重量轻、油耗低、可靠性高、冷启动性能好、通用性强、排放低等特点，还具有保养周期长、使用成本低等特点。

This paper presents the engine emissions at different intake temperature, heating methods and volume of accumulators during the cold start.

研究了不同进气温度、加热方式和蓄热箱容积对发动机冷起动排放的影响规律。

In summer the natural ventilation rates of buoyancy driven flow decrease, in the meantime the cold start and idle emissions of cars are significantly lower in summer than in winter.

在夏季，自然通风量减小，但汽车在冷启动与怠速情况下的污染物排放量远比冬季的小。