Steam Pipe by F.D. Drake, 1988
	
	This component models the steady state operational behavior of steam
flow in a long straight pipe (similar to the one proposed in the thesis). It
uses basic equations for the determination of heat and pressure loss, and it 
is possible to determine the outlet steam conditions from given inlet 
conditions and vice versa.  The calculation for heat loss begins with the 
energy balance for a differential pipe volume.  The outlet temperature and the 
overall loss conductance are calculated.  The heat transfer coefficient on the
outside of the pipe, the conductances of the pipe, and the insulation have 
to be specified by the user.
	The values for the average internal heat transfer coefficient is 
estimated by the model with the use of the equations for the Nusselt number Nu.
The steam properties at mean temperatures and pressures are evaluated with the 
use of the 'steam' subroutine.  The analysis yields the pipe outlet temperature
and the heat loss.  

"Evalutating Cogeneration Options for a Campus Heating and Cooling Plant"
Drake F.D. M.S. Thesis,1988