Re: [EnergyPlus_Support] timestep

Re: [EnergyPlus_Support] timestep > 60

Subject: Re: [EnergyPlus_Support] timestep > 60

From: "Carlos Krebs clmkrebs@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx>

Date: Wed, 7 Feb 2018 11:52:15 +0100

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Dear Tilek,

According to the Input/Output Reference Guide of E+, the number of timesteps (X) per hour will be between thresholds 1 ≤ X ≤ 60. You could see this in the IDF Editor with any IDF file opened, in the initial group "Simulation Parameters", in the class list "Timestep". There is a further explanation on screen field for this.

Regards,

Carlos Krebs

+46 769-058-292

MA. Arch. PROGRAU/FAUrb/UFPEL

LEED® Accredited Professional

Internal Auditor ISO 14.001

Buildings’ Energy Efficiency Consultant

On Feb 7, 2018, at 9:36 AM, tilek.aberra@xxxxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:

Hi, Colleagues,

Can anyone suggest a workaround to run E+ with a timestep larger than 60 (the maximum acceptable)? Let say 120 (i.e. time integration at 1/2 minutes interval). I am currently running a simulation that has a "fluid cooler" object and for the very hot days, I get an erroneous water temperature leaving the fluid cooler that is less than the outdoor temperature.. The number of such anomalies greatly reduces with higher time resolution (for one case 500hr/yr with timestep=6 to 0.75hr/yr with timestep=60). I was trying to get rid of all this erroneous output.

Regards,

Tilek

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Posted by: Carlos Krebs <clmkrebs@xxxxxxxxx>

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Re: [EnergyPlus_Support] timestep > 60
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[EnergyPlus_Support] timestep > 60
- From: tilek.aberra@xxxxxxxxx [EnergyPlus_Support]