Gasoline Energy Comparison汽油能量比较
如果汽油每加仑成本为$,其他能源资源按其价格计算会是多少?在电力价格方面:(1加仑)(36千瓦时/加仑)(美分/千瓦时)= 每加仑$。在天然气价格方面:(1加仑)(0.12×1000立方英尺/加仑)($ / 1000立方英尺)= 每加仑$。在煤炭价格方面:(1加仑)(0.005吨/加仑)($ / 吨)= 每加仑$。在木材价格方面:(1加仑)(0.006根/加仑)($ / 根)= 每加仑$。 中文译文中的待填/计算数值依次对应:1:gc 2:er 3:ec 4:ngr 5:ngc 6:cr 7:cc 8:wr 9:wc。实际数值以上方原输入框为准。 |
Index Energy concepts Physical units 索引 能量概念 物理单位 | ||
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Sample of Energy Rates能量率示例
An electricity rate from the Atlanta area in Spring 1992 was 7.2¢ per kilowatt-hour. In the summer of 2001, the rate was 9.5¢/kwh. This compares with a lower winter rate for 2001 of 6.8¢/kwh. Natural gas billings are typically based on units of 1000 cubic feet and the energy content of a cubic foot varies somewhat but is just over a thousand BTU per cubic foot. Atlanta natural gas companies often quote energy in MBTU = 1000 BTU, the M being the Roman numeral for 1000. Based on a billing in which the energy content was 1.021 MBTU/cubic foot, a spring 1992 residential bill was $5.90 per 1000 cubic feet. After rising gradually for several years, natural gas prices rose dramatically in 2001, with a cost of $10.56 per 1000 cubic feet in January and $13.78 per 1000 cubic feet in the summer. 1992年春季,亚特兰大地区的一项电力价格为每千瓦时7.2美分。2001年夏季,该价格为9.5美分/千瓦时。相比之下,2001年冬季的电价较低,为6.8美分/千瓦时。天然气账单通常以1000立方英尺为单位计算,每立方英尺的能源含量略有不同,但通常超过每立方英尺1000英热单位(BTU)。亚特兰大的天然气公司经常以MBTU为单位报价,其中MBTU = 1000 BTU,M是罗马数字中1000的表示。基于一个账单中每立方英尺的能源含量为1.021 MBTU,1992年春季的住宅账单为每1000立方英尺5.90美元。经过几年的逐步上涨后,天然气价格在2001年大幅上升,1月的费用为每1000立方英尺10.56美元,夏季则为每1000立方英尺13.78美元。
A ton of coal and a cord of wood have similar energy content, and although prices vary widely, around $100 for a ton of coal or a cord of wood was not untypical in 1990. 一吨煤和一立方木柴的能源含量相似,尽管价格差异很大,1990年时一吨煤或一立方木柴大约100美元并不罕见。
Houston Lighting and Power, with 1.38 million customers, quotes 8.3¢ per kwh average for 1990 in their annual report. Average annual use per residential customer was 13,849 kwh. They quote their fuel cost per MBtu as $1.79 for natural gas, $2.21 for coal, $1.60 for lignite, and $.58 for nuclear. 休斯顿照明和电力公司,拥有138万客户,他们在1990年的年度报告中报价每千瓦时平均8.3美分。每个住宅客户的平均年用电量为13,849千瓦时。他们分别以每百万英热单位1.79美元的价格报价天然气,2.21美元的煤,1.60美元的 lignite,以及0.58美元的核能。
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