In reply to Axil Axil's message of Thu, 5 May 2011 17:54:35 -0400: Hi, [snip] >If the 2.5 kw unit can only run for 6 months, then having 50 replacement >sockets wont matter, since after 6 months all 300 modules must ALL be >replaced.
That depends on how long it takes to swap a module. If the computer simply switches in a new one, and switches out the old one to let it cool off, while alerting staff, then the old one can be replaced as soon as it is cool. I wouldn't expect all modules to die at precisely the same time after six months, due to natural variability in the output. Besides you could stagger the process by supplying some with less Nickel than others, so that they deliberately fail sooner. Then you start the replacement process after say 1 month, replacing a couple each day. The replacements all have a full load, so they tend to last another 6 months, maintaining the staggering. Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html
