[esp-r] Setting up time-dependent coefficients in MZSETU

[blomanow at engmail.uwaterloo.ca]

Good Day,

I am working on adding window shading models into ESP-r and have a general 
question about difference equation set up in MZSETU. 

I'm trying to understand the formulation of the difference equations for intra-
contruction nodes. As I understand so far, subroutine MZCOE1 sets up the time 
invariant coefficients (ie. constant thermophysical properties) and MZSETU 
completes the time-dependent coefficients (ie. convective/radiative 
coefficients, heat injections, etc.). 

My question is: what are the W coefficients in MZSETU and how do they fit into 
the difference equations (ex. eqn 3.5) formulated in Chapter 3 of "Energy 
Simulation in Building Design - 2nd Ed.", J.A.Clarke.   

Thanks in advance,

Bart Lomanowski




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