回複:認為柴油機長壽是個很詼諧的看法,汽油機用二三十年的也有的是

來源: sts135 2011-09-22 13:16:40 [] [舊帖] [給我悄悄話] 本文已被閱讀: 次 (1379 bytes)

Advantages of a Diesel Engine
The diesel engine is much more efficient and preferable as compared with gasoline engine due to the following reasons:

  • Modern diesel engines have overcome disadvantages of earlier models of higher noise and maintenance costs.  They are now quiet and require less maintenance as compared with gas engines of similar size.
  • They are more rugged and reliable.
  • There is no sparking as the fuel auto-ignites. The absence of spark plugs or spark wires lowers maintenance costs. 
  • Fuel cost per KiloWatt produced is thirty to fifty percent lower than that of gas engines.
  • An 1800 rpm water cooled diesel unit operates for 12,000 to 30,000 hours before any major maintenance is necessary. An 1800 rpm water cooled gas unit usually operates for 6000-10,000 hours before it needs servicing.
  • Gas units burn hotter than diesel units, and hence they have a significantly shorter life compared with diesel units.

 

你的關於汙染的評論脫離了效率這點,同樣開相同距離,柴油用量少於汽油,盡管其汙染產量比率比汽油高,但就這相同距離的排放,柴油未必比汽油高.

所有跟帖: 

不動腦子,人雲亦雲! -列瓦雷士- 給 列瓦雷士 發送悄悄話 (686 bytes) () 09/22/2011 postreply 14:58:09

俺們這裏還是柴油相當於普通汽油。 -1passby- 給 1passby 發送悄悄話 (0 bytes) () 09/23/2011 postreply 08:27:49

其他的你或許說的有一定道理,汙染那個,不講效率說了等於沒說 -sts135- 給 sts135 發送悄悄話 (57 bytes) () 09/23/2011 postreply 08:59:23

看好了,我可沒說哪個油更環保,我對環保沒興趣。 在生成高致癌物麵你還前講效率? 扯ing! -列瓦雷士- 給 列瓦雷士 發送悄悄話 (0 bytes) () 09/23/2011 postreply 10:38:50

Giving reasons for your point please. Diesel is better -KarlMax- 給 KarlMax 發送悄悄話 (79 bytes) () 09/23/2011 postreply 12:43:15

歐洲柴油什麽價?美洲什麽價?比過嗎?歐洲排放標準沒有美國嚴格,知道嗎? -列瓦雷士- 給 列瓦雷士 發送悄悄話 (0 bytes) () 09/23/2011 postreply 15:30:09

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