Glossary entry (derived from question below)
Chinese term or phrase:
大小呼吸
English translation:
large and small tank breathing (losses)
Added to glossary by
Lu Wang
Feb 22, 2006 05:50
18 yrs ago
Chinese term
大小呼吸
Chinese to English
Tech/Engineering
Chemistry; Chem Sci/Eng
environment
本工程的PX和HAc均采用浮顶罐储存,大大减少了因大小呼吸而产生的逸散损失。
Proposed translations
(English)
4 +1 | major and minor tank breaths | Xiaoping Fu |
4 | Ls and Lw | Ray Luo |
Proposed translations
+1
1 hr
Selected
major and minor tank breaths
这里的“大小呼吸”,指的是储油罐的呼吸。当储油罐有剩余空间时,液体油会通过液体表面挥发到上部空气中,直至一定的饱和值。新油加入,这部分油气就被排出。这就是所谓的“大呼吸”。而“小呼吸”是指温度变化造成的呼吸。油的体积每天随温度升降而周期性变化。体及增大时,上部的油气被排出;体积减小时,吸入新鲜空气。
储油罐加上浮顶,大概是罐顶随液面上下浮动,从而消除了剩余空间,呼吸现象也就消失了。
一时找不到权威的英译。我想,用“breath”一词应该不会有大错。因为人们在谈论汽车油箱温度变化造成的呼吸现象时,是有“tank breath”这种说法的。
储油罐加上浮顶,大概是罐顶随液面上下浮动,从而消除了剩余空间,呼吸现象也就消失了。
一时找不到权威的英译。我想,用“breath”一词应该不会有大错。因为人们在谈论汽车油箱温度变化造成的呼吸现象时,是有“tank breath”这种说法的。
4 KudoZ points awarded for this answer.
Comment: "Thank you!"
9 hrs
Ls and Lw
大呼吸是指油罐进发油时的呼吸。
油罐在没有收发油作业的情况下,随着外界气温、压力在一天内的升降周期变化,罐内气体空间温度、油品蒸发速度、油气浓度和蒸汽压力也随之变化。这种排出石油蒸气和吸入空气的过程造成的油气损失,叫小呼吸损失。
本工程的PX和HAc均采用浮顶罐储存,大大减少了因大小呼吸而产生的逸散损失。
大呼吸是指油罐进发油时的呼吸 油罐在没有收发油作业的情况下,
随着外界气温、压力在一天内的升降周期变化,罐内气体空间温度、
油品蒸发速度、油气浓度和蒸汽压力也随之变化。这种排出石油蒸气和
吸入空气的过程造成的油气损失,叫小呼吸损失。
Standing Storage or Breathing Loss (Ls) - It is a loss due to evaporation. Heating of the tank by the sun causes the fuel to volatilize and vent to the atmosphere。
Working Loss (Lw) : This loss occurs when mass of vapors are emitted to the atmosphere during the:
Transfer of gasoline from cargo tank to AST (Deliveries)
Transfer of gasoline from AST to vehicle (Dispenses)
Lw = Lw(Deliveries) + Lw(Dispenses)
Ls = standard storage loss = 小呼吸损耗
Lw = working loss = 大呼吸损耗
很显然,中文专业词汇与英文的专业词汇不能匹配。虽然asker 已给了4 points out, 也不妨,作一参考。
油罐在没有收发油作业的情况下,随着外界气温、压力在一天内的升降周期变化,罐内气体空间温度、油品蒸发速度、油气浓度和蒸汽压力也随之变化。这种排出石油蒸气和吸入空气的过程造成的油气损失,叫小呼吸损失。
本工程的PX和HAc均采用浮顶罐储存,大大减少了因大小呼吸而产生的逸散损失。
大呼吸是指油罐进发油时的呼吸 油罐在没有收发油作业的情况下,
随着外界气温、压力在一天内的升降周期变化,罐内气体空间温度、
油品蒸发速度、油气浓度和蒸汽压力也随之变化。这种排出石油蒸气和
吸入空气的过程造成的油气损失,叫小呼吸损失。
Standing Storage or Breathing Loss (Ls) - It is a loss due to evaporation. Heating of the tank by the sun causes the fuel to volatilize and vent to the atmosphere。
Working Loss (Lw) : This loss occurs when mass of vapors are emitted to the atmosphere during the:
Transfer of gasoline from cargo tank to AST (Deliveries)
Transfer of gasoline from AST to vehicle (Dispenses)
Lw = Lw(Deliveries) + Lw(Dispenses)
Ls = standard storage loss = 小呼吸损耗
Lw = working loss = 大呼吸损耗
很显然,中文专业词汇与英文的专业词汇不能匹配。虽然asker 已给了4 points out, 也不妨,作一参考。
Discussion
...Tank breathing losses, Estimated quantities of petroleum products ...
www.arb.ca.gov/ei/areasrc/ccosmeth/att_h_petroleum_marketin...
For gasoline, storage tank breathing losses are calculated from the average quantity of gasoline stored at bulk plants ... Bulk plants/terminals – tank breathing losses, Tank breathing losses, Estimated quantitie