[esp-r] FW: admittance further references

[Jon Hand]

A recent question about generating Admittance values for constructions
within ESP-r (in addition to the in-built report discussed in earlier emails to the list).


The Cibse admittance method is not a clear to understand method in general. 
Cibse Guide A describes the method in detail and I think that it also has 
code (Fortran if I remember well) that does some of the calculations.

Jeff Spitler and his co-auhors used basic modification of a program that uses 
the admittance method in a parametric study in:
"Spitler J.D., Rees S.J. 1998. Quantitative Comparison of North American and 
U.K. Cooling Load Calculation Procedures - Methodology. ASHRAE Transactions, 
104 (2), pp. 36-46."

They call that program: BRE-ADMIT and they reference it as:
"Bloomfield, D.P. No date. BRE-ADMIT: Thermal design of buildings. Watford: 
BRE Publishing, Building Research Establishment".

So, it might be better to contact BRE for more details on the method and 
especially on the existing applications.

Regards,
Georgios


On Monday 11 February 2008 14:59, you wrote:

> Could you perhaps point me at some work that derives the CIBSE admittance
> procedure from first principles? I put a matlab script together for
> multi-layer constructions but get anomalous results compared to CIBSE
> examples.