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Re: [EnergyPlus_Support] Why different electricity consumption?





the three scenarios are as follows


On Thursday, February 12, 2015 6:48 AM, "'jeannieboef@xxxxxxxxx' jeannieboef@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:


 
What are your setback temperatures for the 24 and 27 senarios...perhaps the step from setback to setpoint has the same amplitude? 

Mit freundlichen GrüÃ?en- Sent from my iPhone (excuse the brevity)

i. A.
Jean Marais
b.i.g. bechtold
Tel.   +49 30 6706662-23

On 11.02.2015, at 21:45, "Fakeha Sehar fakeha_s@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:

 
But then why are red and blue values same during the highlighted time if it has to do with autosizing? The green line indicates the scenario when cooling set point is kept at 24C all day, while red and blue lines indicate scenarios when cooling set points are either 24C or 27C.


On Wednesday, February 11, 2015 12:00 PM, "'jeannieboef@xxxxxxxxx' jeannieboef@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:


 
If you autosized the system, then your equipments are not the same size and will perform marginally different (part-load performance).

Mit freundlichen GrüÃ?en- Sent from my iPhone (excuse the brevity)

i. A.
Jean Marais
b.i.g. bechtold
Tel.   +49 30 6706662-23

On 11.02.2015, at 14:31, "Fakeha Sehar fakeha_s@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:

 
its the same system simulated with different cooling set points, but during the highlighted time in the three sets of simulations the cooling set point is 24C.


On Tuesday, February 10, 2015 11:28 PM, "Rajeev rajeevkamal@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:


 
What are these profiles of? Every system behaves differently and can be within the error range of measurement and operations.

Sent from my iPhone

On Feb 10, 2015, at 10:32 PM, Fakeha Sehar fakeha_s@xxxxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:

 
Inline image

In the attached figure, three electricity consumption profiles are shown.  All profiles during the highlighted time have same set point of 24 deg C, so why the green colored line has slightly lower electricity consumption?
<blob.jpg>








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Posted by: Fakeha Sehar <fakeha_s@xxxxxxxxx>


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