Re: [TRNSYS-users] Energy balance for one zone (Ntype 904)

[王洋 <wanghongyang1767@gmail.com>]

Dear all,

I have some questions about Energy balance for one zone (Ntype 904).

1)
 For Qtrans, it might be stored thermal energy (>0?) in the wall or 
directly transmitted (<0?) through the wall. But I want to calculate 
the two parts exactly, i.e. how to calculate the part of stored thermal 
energy in the wall and directly transmitted energy, separatedly?

2) For Qsolgain, does it mean Ntype 14 +15? or only Ntype 75?
What relationship between Qsolgain and Solar_rad. (kWh) in T56_stdoutput.sum file? Are both the same? or included relationship?

3) For Qgint, is it Ntype 7 + 13? Is it equal to Int_gains in T56_stdoutput.sum file?

4) I want to calculate Heat Loss (or energy consumption) in a zone 
e.g. in winter, whether or not the heat loss includes Qinf + Qvent 
+DQairdt+ Qtrans (only the part of directly transmitted through the 
wall, not the part of stored part, that is why I ask 1))?

For the actual heat gain e.g. in winter in one zone, it only includes Qgint + Qsolgain?

However, Qheat and Qcool should be Heat loss or heat gain?

Many thanks in advance!
Br.

yang wang

2013/1/18 王洋 <wanghongyang1767@gmail.com>

Dear all,

I have some questions about Energy balance for one zone (Ntype 904).

1) For Qtrans, it might be stored thermal energy (>0?) in the wall or directly transmitted (<0?) through the wall. But I want to calculate the two parts exactly, i.e. how to calculate the part of stored thermal energy in the wall and directly transmitted energy, separatedly?

2) For Qsolgain, does it mean Ntype 14 +15? or only Ntype 75?
What relationship between Qsolgain and Solar_rad. (kWh) in T56_stdoutput.sum file? Are both the same? or included relationship?

3) For Qgint, is it Ntype 7 + 13? Is it equal to Int_gains in T56_stdoutput.sum file?

4) I want to calculate Heat Loss (or energy consumption) in a zone e.g. in winter, whether or not the heat loss includes Qinf + Qvent +DQairdt+ Qtrans (only the part of directly transmitted through the wall, not the part of stored part, that is why I ask 1))?

For the actual heat gain e.g. in winter in one zone, it only includes Qgint + Qsolgain?

However, Qheat and Qcool should be Heat loss or heat gain?

Many thanks in advance!
Br.

yang wang