Loosening up your relaxation factor could work too.
Since you have PCM only in the roof, you should only use FD on that construction or surface and then your 90 surfaces should not be a problem.
Sent from my iPhone
On May 26, 2016, at 8:18 AM, Dru Crawley dbcrawley@xxxxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:
Reduce the number of surfaces.. with the PCM and FD methods, that will help.On Thu, May 26, 2016 at 5:18 AM, gauravciitr@xxxxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:Hi,
I am running E+(ver 8.4) simulation on a building with
1. Building area: 117 sqm
2. Conditioned volume: 360 m3
3. PCM on roof: 90 sqm
4. Number of surfaces: 90
5. Conduction finite difference method, so 20 timesteps
6. Each construction has some 7-8 layers
6. Laptop with 4 cores
Even for 1-month runtime it's taking more than 90 mins. Can anyone suggest how can I reduce simulation time. I know reducing the layers in construction is one, but I want to keep that solution the last one.
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Posted by: Jeremiah Crossett <jcrossett@xxxxxxxxxx>
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