内燃机
內燃機
내연궤
INTERNAL COMBUSTION ENGINES
2011年
4期
47-50,56
,共5页
CNG%双燃料车%乘用车
CNG%雙燃料車%乘用車
CNG%쌍연료차%승용차
CNG%bi-fuel vehicles%passenger car
压缩天然气（CNG）是一种可替代汽油、柴油、丙烷或液化石油气的化石燃料。虽然它的燃烧会产生温室气体,但比其它燃料对环境的污染小得多,而且比其他燃料更安全,天然气比空气轻,泄露后很快发散在空气中。CNG通过压缩天然气（主要成分是甲烷[CH4]）获得,常压下其体积仅占不足空气的1%,因此需要加压储存在20～25 MPa圆筒形或球形的压力容器中。CNG可以在传统的汽油机车辆的基础上改装,成为汽油、CNG双燃料车。由于汽油价格上涨,天然气车辆已经逐渐在亚太区域、拉丁美洲、欧洲和美国应用。受高燃料价格和环境要求的影响,CNG正在出租车和公交车上逐渐推广应用。
壓縮天然氣（CNG）是一種可替代汽油、柴油、丙烷或液化石油氣的化石燃料。雖然它的燃燒會產生溫室氣體,但比其它燃料對環境的汙染小得多,而且比其他燃料更安全,天然氣比空氣輕,洩露後很快髮散在空氣中。CNG通過壓縮天然氣（主要成分是甲烷[CH4]）穫得,常壓下其體積僅佔不足空氣的1%,因此需要加壓儲存在20～25 MPa圓筒形或毬形的壓力容器中。CNG可以在傳統的汽油機車輛的基礎上改裝,成為汽油、CNG雙燃料車。由于汽油價格上漲,天然氣車輛已經逐漸在亞太區域、拉丁美洲、歐洲和美國應用。受高燃料價格和環境要求的影響,CNG正在齣租車和公交車上逐漸推廣應用。
압축천연기（CNG）시일충가체대기유、시유、병완혹액화석유기적화석연료。수연타적연소회산생온실기체,단비기타연료대배경적오염소득다,이차비기타연료경안전,천연기비공기경,설로후흔쾌발산재공기중。CNG통과압축천연기（주요성분시갑완[CH4]）획득,상압하기체적부점불족공기적1%,인차수요가압저존재20～25 MPa원통형혹구형적압력용기중。CNG가이재전통적기유궤차량적기출상개장,성위기유、CNG쌍연료차。유우기유개격상창,천연기차량이경축점재아태구역、랍정미주、구주화미국응용。수고연료개격화배경요구적영향,CNG정재출조차화공교차상축점추엄응용。
Compressed natural gas（CNG） is a fossil fuel substitute for gasoline（petrol）,diesel,or propane/LPG.Although its combustion does produce greenhouse gases,it is a more environmentally clean alternative to those fuels,and it is much safer than other fuels in the event of a spill（natural gas is lighter than air,and disperses quickly when released）.CNG is made by compressing natural gas（which is mainly composed of methane）,to less than 1% of the volume it occupies at standard atmospheric pressure.It is stored and distributed in hard containers at a pressure of 20~25 MPa,usually in cylindrical or spherical shapes.CNG is used in traditional gasoline internal combustion engine cars that have been converted into bi-fuel vehicles（gasoline/CNG）.Natural gas vehicles are increasingly used in the Asia-Pacific region,Latin America,Europe,and America due to rising gasoline prices.In response to high fuel prices and environmental concerns,CNG is starting to be used also in taxis and buses.
