[geeks] [rescue] Computerfests (was: first real server hardware) -OT

wa2egp at att.net wa2egp at att.net
Wed Apr 28 18:59:00 CDT 2004


>
> Actually, piplining hydrogen is generally a bad idea.  Hydrogen 
> molecules are _very_ small.  Sealing hydrogen lines is a big problem.  
> (air tight pipes are generally not hydrogen tight).  Pipelining for 
> short distances is common, long distances are not. 

Even cylinders of compressed hydrogen leak, but according to Graham's
Law, it diffuses faster than natural gas so the explosion  risk is
about the same.

> 
> Oh, and at a couple of million dollar (each) compressors are not 
> something to just toss around.  Especially when considering the 
> consumption rate required.
> 
> For transportation, using electricity to transport the energy is 
> preferred.  But entropy increases. (Making hydrogen from water cost more 
> in terms of energy than you get when you burn it). 

Quote from Homer, "...in this house, we follow the Laws of Thermodynamics!"
Reduce the energy conversions, reduce the loss?



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