Ask Your Question
4

the difference between **Fan Coil Total Cooling Rate** and **Cooling Coil Total Cooling Rate**?

What is the difference between Fan Coil Total Cooling Rate and Cooling Coil Total Cooling Rate? I put ZoneHVAC:FourPipeFanCoil in a zone，and i found huge difference between Fan Coil Total Cooling Rate and Cooling Coil Total Cooling Rate, the Cooling Coil Total Cooling Rate is much larger than Fan Coil Total Cooling Rate, why?

Richard's avatar
85
Richard
asked 2017-08-21 01:10:31 -0500
__AmirRoth__'s avatar
4.4k
__AmirRoth__
updated 2017-08-21 08:38:39 -0500
edit flag offensive 0 remove flag close merge delete

Comments

add a comment see more comments

2 Answers

4

Because of outdoor air. The Fan Coil Total Cooling Rate is what is provided to the zone (i.e., Tsa - Tzone). The Cooling Coil Total Cooling Rate is the total load on the system coil including fan heat and outdoor air load (i.e., Tcoil, outlet - Tcoil, inlet).

rraustad's avatar
13.8k
rraustad
answered 2017-08-21 08:33:35 -0500
edit flag offensive 0 remove flag delete link
more

Comments

add a comment see more comments
1

Another description for this topic:

The Fan Coil Total Cooling Rate is about the condition between R.A. and S.A.

The Cooling Coil Total Cooling Rate is about the condition between M.A.(R.A.+O.A.) and S.A. (including fan heat)

Richard's avatar
85
Richard
answered 2017-08-21 19:47:43 -0500, updated 2017-08-22 19:06:13 -0500
edit flag offensive 0 remove flag delete link
more

Comments

1

M.A. also includes outdoor air load if OA is part of the simulation.

rraustad's avatar rraustad (2017-08-22 07:38:31 -0500) edit
more
  • delete
add a comment see more comments