暖通空调专业外文翻译------空调系统.doc
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暖通空调专业外文翻译------空调系统,air conditioning has rapidly grown over the past 50 years, from a luxury to a standard system included in most residential and commercial buildings. in 1970, 36...
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Air conditioning has rapidly grown over the past 50 years, from a luxury to a standard system included in most residential and commercial buildings. In 1970, 36% of residences in the U.S. were either fully air conditioned or utilized a room air conditioner for cooling (Blue, et al., 1979). By 1997, this number had more than doubled to 77%, and that year also marked the first time that over half (50.9%) of residences in the U.S. had central air conditioners (Census Bureau, 1999). An estimated 83% of all new
homes constructed in 1998 had central air conditioners (Census Bureau, 1999). Air conditioning has also grown rapidly in commercial buildings. From 1970 to 1995, the percentage of commercial buildings with air conditioning increased from 54 to 73% (Jackson and Johnson, 1978, and DOE, 1998).
Air conditioning in buildings is usually accomplished with the use of mechanical or heat-activated equipment. In most applications, the air conditioner must provide both cooling and dehumidification to maintain comfort in the building. Air conditioning systems are also used in other applications, such as automobiles, trucks, aircraft, ships, and industrial facilities. However, the description of equipment in this chapter is limited to those commonly used in commercial and residential buildings.
Commercial buildings range from large high-rise office buildings to the corner convenience store. Because of the range in size and types of buildings in the commercial sector, there is a wide variety of equipment applied in these buildings. For larger buildings, the air conditioning equipment is part of a total system design that includes items such as a piping system, air distribution system, and cooling tower. Proper design of these systems requires a qualifie
过去 50 年以来，空调得到了快速的发展，从曾经的奢侈品发展到可应用于大多数住宅和商业建筑的比较标准的系统。在 1970 年的美国， 36% 的住宅不是全空气调节就是利用一个房间空调器冷却；到1997年，这一数字达到了 77%，在那年作的第一次市场调查表明，在美国有超过一半的住宅安装了中央空调 (人口普查局, 1999)。在1998年，83%的新建住宅安装了中央空调 ( 人口普查局, 1999)。中央空调在商业建筑物中也得到了快速的发展，从 1970年到1995年，有空调的商业建筑物的百分比从54%增加到 73%(杰克森和詹森,1978)。
homes constructed in 1998 had central air conditioners (Census Bureau, 1999). Air conditioning has also grown rapidly in commercial buildings. From 1970 to 1995, the percentage of commercial buildings with air conditioning increased from 54 to 73% (Jackson and Johnson, 1978, and DOE, 1998).
Air conditioning in buildings is usually accomplished with the use of mechanical or heat-activated equipment. In most applications, the air conditioner must provide both cooling and dehumidification to maintain comfort in the building. Air conditioning systems are also used in other applications, such as automobiles, trucks, aircraft, ships, and industrial facilities. However, the description of equipment in this chapter is limited to those commonly used in commercial and residential buildings.
Commercial buildings range from large high-rise office buildings to the corner convenience store. Because of the range in size and types of buildings in the commercial sector, there is a wide variety of equipment applied in these buildings. For larger buildings, the air conditioning equipment is part of a total system design that includes items such as a piping system, air distribution system, and cooling tower. Proper design of these systems requires a qualifie
过去 50 年以来，空调得到了快速的发展，从曾经的奢侈品发展到可应用于大多数住宅和商业建筑的比较标准的系统。在 1970 年的美国， 36% 的住宅不是全空气调节就是利用一个房间空调器冷却；到1997年，这一数字达到了 77%，在那年作的第一次市场调查表明，在美国有超过一半的住宅安装了中央空调 (人口普查局, 1999)。在1998年，83%的新建住宅安装了中央空调 ( 人口普查局, 1999)。中央空调在商业建筑物中也得到了快速的发展，从 1970年到1995年，有空调的商业建筑物的百分比从54%增加到 73%(杰克森和詹森,1978)。
