Jim Kelley wrote:
:-) No work means no power, ...

You are right, of course. I've been retired for a
decade now and forgot what work was. :-) Work can
have the dimensions of joules. Reflected power is
in joules/sec. The joules in the reflected wave
is equal to the reflected power times the length
of the transmission line in seconds.
--
73, Cecil http://www.w5dxp.com