On 08/07/2012 12:11 AM, Peter Blodow wrote: > Gene, > please don't forget to take into account that liquefied gases have a > density of less than two thirds of gasoline and even less than diesel > fuel. Methane (CNG, CH4) is even lighter than butane (C2H6) or propane > (LPG, C3H8). In addition, their thermal yield is about 10 to 20% lower > per mass unit than that of liquid fuels (I didn't bother looking up the > exact figures). Multiply those figures and you'll end up with less than > half the energy content of gasoline.
Energy density is something a lot of people mess up on: http://wiki.xtronics.com/index.php/Energy_density > ...a gallon of Gasoline has more hydrogen than a gallon of liquid hydrogen - > in other words gasoline is a great way to store hydrogen fuel. -------------------------------------------------------------------------------- Karl Schmidt EMail [email protected] Transtronics, Inc. WEB http://secure.transtronics.com 3209 West 9th Street Ph (785) 841-3089 Lawrence, KS 66049 FAX (785) 841-0434 Give me four parameters and I can fit an elephant; Give me five and I can wag its tail. (The source of the above quote?? Variants have been attributed to C.F. Gauss, Niels Bohr, Lord Kelvin, Enrico Fermi.) -------------------------------------------------------------------------------- ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
