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[TRNSYS-users] mean radiant and operative temperature



Dear All,

 

I have 2 question:

 

1)      In manual vol. 5 (introduction) I have read:

 

The third parameter gives the WEIGHTING FACTOR between air and mean surface temperature for the calculation of an operative room temperature. The inputs and outputs of TYPE 56 depend upon the building description and options within the TRNBUILD program. TRNBUILD generates an information file describing the outputs and required inputs of TYPE 56.

 

Where can I found/ set this factor?

 

2)      What is the exactly difference between:

NTYPE 24

TMSURF

weighted mean surface temperature of airnode

[°C]

and

NTYPE 120

TMRLW

Mean radiant temperature (longwave only)

[!C]

 

The first is calculate according to surface area, and second is calculate according to surface area and distance from person?

 

Kind regards,

------------------------------------------------

Karol Bandurski MSc.

Institute of Environmental Engineering

Poznan University of Technology

www.ee.put.poznan.pl

www.put.poznan.pl