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Miles per imperial gallon is used as the primary fuel economy unit in the United Kingdom and as a supplementary unit in Canada on official documentation. [36] [37] [38]
Btu per hour (Btu/h) is sometimes used in North America and the United Kingdom - the latter for air conditioning mainly, though "Btu/h" is sometimes abbreviated to just "Btu". [18] MBH—thousands of Btu per hour—is also common. [19] 1 W is approximately 3.412142 Btu/h [20] 1,000 Btu/h is approximately 0.2931 kW; 1 hp is approximately 2,544 Btu/h
2 per unit of energy than does coal or oil, but more than natural gas. It emits 81% of the CO 2 per kWh produced by oil, 70% of that of coal, and less than 50% of that emitted by coal-generated electricity distributed via the grid. [91] Being a mix of propane and butane, LPG emits less carbon per joule than butane but more carbon per joule than ...
Observed concentrations have been in the range of 0.1–4.8 parts per billion in rural air, 4–10.5 ppb in urban air, and 7–260 ppb in industrial air samples. [ 9 ] In the United States and some European countries a threshold limit value of 500 parts per million ( ppm ) was established for occupational (8-hour time-weighted average ) exposure.
Blue Rhino propane grill tank Multiple stacks of Blue Rhino propane tanks lined up in Grove City, PA. On February 9, 2004, Ferrellgas announced its blockbuster merger with Blue Rhino Corporation, [17] the nation's largest provider of propane by portable tank exchange. Under the terms of the agreement, Ferrellgas purchased shares of Blue Rhino ...
Liquid rocket engines have tankage and pipes to store and transfer propellant, an injector system and one or more combustion chambers with associated nozzles.. Typical liquid propellants have densities roughly similar to water, approximately 0.7–1.4g/cm 3.