The effect of hot surface temperature on diesel fuel deposit formation
The effect of hot surface temperature on diesel fuel deposit formation
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DOI：
10.1016/j.fuel.2009.07.014
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发表时间：
2010-05
期刊：
影响因子：
7.4
通讯作者：
Y. M. Arifin;M. Arai
中科院分区：
文献类型：
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作者：
Y. M. Arifin;M. Arai
本研究的目的是通过使用热表面沉积试验（HSDT）来研究燃料沉积。柴油液滴反复撞击热表面形成沉积物，热表面温度影响存款的形成。不同的热表面温度表现出不同的液滴-表面相互作用，蒸发寿命和湿/干条件，从而导致不同的存款发展特征。在最大蒸发速率点（MEP）附近的热表面温度具有减少热表面存款形成的潜力。与过渡传热沸腾状态（接近MEP温度）内的沉积相比，核传热沸腾状态（低于MEP温度）内的沉积在热表面上引起更大的存款积累。在非重叠撞击和干燥存款条件下，存款总量较少，被描述为缓慢的存款发展。在重叠碰撞和湿存款条件下，它导致了更大的总量的存款的积累相比，非重叠和干燥的存款条件。
The aim of this study is to investigate fuel deposits by using the hot surface deposition test (HSDT). In this test, diesel fuel droplets were repeatedly impinged to the hot surface and deposits were developed on it. The hot surface temperature affected the deposit formation. Different hot surface temperature showed different droplet-surface interaction, evaporation lifetime and wet/dry condition where various deposit development features resulted. The hot surface temperatures that located near MEP (maximum evaporation rate point) temperature have potential to reduce the deposit formation on the hot surface. The deposition within nucleate heat transfer boiling regime (lower than the MEP temperature) caused greater deposit accumulation on the hot surface compared to the deposition within transition heat transfer boiling regime (near the MEP temperature). Less total amount of deposit that was described as slow deposit development, resulted under non-overlapping impingement and dry deposit condition. Under the overlapping impingement and wet deposit condition, it caused the accumulation of greater total amount of deposit compared to the non-overlapping and dry deposit condition.