作业帮英语翻译酒精蒸发机理研究摘 要蒸馏是化工产业非常重要的一环,为了深入了解蒸馏的特性以提高蒸馏的效率,降低成本,本文利用质
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/21 06:37:47
英语翻译
酒精蒸发机理研究
摘 要
蒸馏是化工产业非常重要的一环,为了深入了解蒸馏的特性以提高蒸馏的效率,降低成本,本文利用质量传递数法推导传质方程,通过选取合适的阻力系数经验关联式建立了动量方程,考虑液滴蒸发以及与环境气体的对流换热建立了液滴能量方程,初步建立了单个酒精液蒸发理论模型.拟合出酒精液滴各种物性随温度的变化关系.分析了液滴不同的初始直径和速度对液滴蒸发冷却特性的影响.本文对酒精液滴蒸发机理开展研究,来获得蒸发过程中酒精液滴的温度变化和浓度变化,掌握工质成分、浓度、液滴初始直径、温度等因素的影响.本文的研究成果能为多组分液体蒸馏的工业应用提供科学依据,揭示多组分液滴蒸发的传热传质基本规律,因而具有实用价值和理论研究意义.
关键词:酒精；蒸发机理；单组份液滴
酒精蒸发机理研究
摘 要
蒸馏是化工产业非常重要的一环,为了深入了解蒸馏的特性以提高蒸馏的效率,降低成本,本文利用质量传递数法推导传质方程,通过选取合适的阻力系数经验关联式建立了动量方程,考虑液滴蒸发以及与环境气体的对流换热建立了液滴能量方程,初步建立了单个酒精液蒸发理论模型.拟合出酒精液滴各种物性随温度的变化关系.分析了液滴不同的初始直径和速度对液滴蒸发冷却特性的影响.本文对酒精液滴蒸发机理开展研究,来获得蒸发过程中酒精液滴的温度变化和浓度变化,掌握工质成分、浓度、液滴初始直径、温度等因素的影响.本文的研究成果能为多组分液体蒸馏的工业应用提供科学依据,揭示多组分液滴蒸发的传热传质基本规律,因而具有实用价值和理论研究意义.
关键词:酒精；蒸发机理；单组份液滴
Abstract
Distillation is a very important part of chemicalindustry, in order to know more about the characteristics of distillation andthus improve the efficiency of the distillation and decrease the cost, thepaper has derived the mass transfer equations taking advantageof mass transfer method. It has set up a momentum equation throughchoosing the right drag coefficient for the empirical correlation equation. Then initially established a theoretical model of singlealcohol droplet evaporation using droplet energy equation which has takedroplet evaporation and convection of environmental gas into consideration. Fitting the correlation between variousphysical properties of alcohol droplets and temperature. It alsoanalyzes the affection of different initial droplet diameter and velocity ondroplet evaporation and cooling characteristics. The article investigates onthe alcohol evaporation mechanism to gain the law of temperatureand concentration change in alcohol droplet evaporation also toacknowledge the effect of working fluid composition, concentration , initialdroplet diameter , temperature and other factors. The study may provide ascientific basis for the industrial application ofmulti-component droplet distillation, it can also reveal the basiclaw of Heat and Mass Transfer in multi-component droplet distillation.In this way, it has determinate practical merit and groping meaning.
keywords: Alcohol; evaporationmechanism; single component droplets
Distillation is a very important part of chemicalindustry, in order to know more about the characteristics of distillation andthus improve the efficiency of the distillation and decrease the cost, thepaper has derived the mass transfer equations taking advantageof mass transfer method. It has set up a momentum equation throughchoosing the right drag coefficient for the empirical correlation equation. Then initially established a theoretical model of singlealcohol droplet evaporation using droplet energy equation which has takedroplet evaporation and convection of environmental gas into consideration. Fitting the correlation between variousphysical properties of alcohol droplets and temperature. It alsoanalyzes the affection of different initial droplet diameter and velocity ondroplet evaporation and cooling characteristics. The article investigates onthe alcohol evaporation mechanism to gain the law of temperatureand concentration change in alcohol droplet evaporation also toacknowledge the effect of working fluid composition, concentration , initialdroplet diameter , temperature and other factors. The study may provide ascientific basis for the industrial application ofmulti-component droplet distillation, it can also reveal the basiclaw of Heat and Mass Transfer in multi-component droplet distillation.In this way, it has determinate practical merit and groping meaning.
keywords: Alcohol; evaporationmechanism; single component droplets