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[EnergyPlus_Support] saving energy with change setpoint thermostat
Dear All,
I am using EnergyPlus for calculate energy consumption of the
building. My model just for cooling load operation, and the building
using chiller for cooling loop. In setpoint thermostat using single
cooling setpoint with control type 2. I have running the simulation
for setpoint thermostat 22 C during occupied hours (from hour 5-18)
and 27 C otherwise, and I have get total electricity facility (J).
But when I reduce cooling setpoint from 22 C to 24 C during occupied
hours, total electricity facility not change. I can't get saving
energy from reduce setpoint thermostat.
After running simulation, I get this warning :
---------------------------------------------------------------
************* Testing Individual Branch Integrity
************* All Branches passed integrity testing
************* Testing Individual Supply Air Path Integrity
************* All Supply Air Paths passed integrity testing
************* Testing Individual Return Air Path Integrity
************* All Return Air Paths passed integrity testing
** Warning ** tp12c0: not converged in 8 CoolCoilErrs
** Warning ** tp12c0: not converged in 8 CoolCoilErrs
** Warning ** tp12c0: not converged in 8 CoolCoilErrs
** Warning ** tp12c0: not converged in 8 CoolCoilErrs
** Warning ** tp12c0: not converged in 8 CoolCoilErrs
** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
loops, SRJY, 07/21 04:15 - 04:30
** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
loops, SRJY, 07/21 04:30 - 04:45
** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
loops, SRJY, 07/21 04:45 - 05:00
** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
loops, SRJY, 07/21 05:00 - 05:15
** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
loops, SRJY, 07/21 05:15 - 05:30
** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
loops, SRJY, 07/21 05:30 - 05:45
** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
loops, SRJY, 07/21 05:45 - 06:00
** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
loops, SRJY, 07/21 06:00 - 06:15
** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
loops, SRJY, 07/21 06:15 - 06:30
** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
loops, SRJY, 07/21 06:30 - 06:45
** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
loops, SRJY, 07/21 06:45 - 07:00
** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
loops, SRJY, 07/21 07:00 - 07:15
** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
loops, SRJY, 07/21 07:15 - 07:30
** Warning ** SimHVAC: Maximum iterations exceeded for all HVAC
loops, SRJY, 07/21 07:15 - 07:17
** Warning ** SimHVAC: Exceeding max iterations continues...50
-----------------------------------------------------------------
Can any one help me for this problem? And can I get some example for
simulation like this?
I do hope for a reply in the future. Thank you very much for your
concern
Tata
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