Group: rec.woodworking · Group Profile · Search for OT A Slow Day in The Cabinet Shop in rec.woodworking
Date: Jun 8, 2010 04:42
On Jun 7, 9:56 pm, dpb <n...@non.net> wrote: Doug Houseman wrote: In article <4c0d4d79$0$1312$c3e8...@news.astraweb.com>, ... Common steam plants in use today, built years ago - are in the 40-42 percent thermal efficiency range. Newer prototype plants have hit over 60 percent. I doubt the prototypes will ever be built full scale with that level of efficiency....