May I suggest that you simply attach the IDF itself.
It is very difficult to read the items in your mail with a different format. The problem may be in other part of the IDF. For example, what is in the sizng object. If it is a transient problem, it can be ignored. Autosizing requires a good realistic sizing simulatin. run..
The way I help is to run the IDF submitted and read the error file to find the problems. It may be quite time consumming, and therefore I do not respond to every IDF posted.
Your original post seems to indicae that you have one occurance of the problem at 9 am, with the posted conditions. The suggested problem was one of the controller may have a incorrect control sequence. It shoud be "reverse". The cooling coil controller is in "reverse". Is thare any other controllers or components which should be set to "reverse", for example, zone damper control.
Dr. Li
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: alpayakguc@xxxxxxxxx
Date: Mon, 9 Jul 2012 03:03:27 -0700
Subject: Re: [EnergyPlus_Support] Re: Controlling cooling coils
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Primary EnergyPlus support is found at:
http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx
The primary EnergyPlus web site is found at:
http://www.energyplus.gov
The group web site is:
http://groups.yahoo.com/group/EnergyPlus_Support/
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It is very difficult to read the items in your mail with a different format. The problem may be in other part of the IDF. For example, what is in the sizng object. If it is a transient problem, it can be ignored. Autosizing requires a good realistic sizing simulatin. run..
The way I help is to run the IDF submitted and read the error file to find the problems. It may be quite time consumming, and therefore I do not respond to every IDF posted.
Your original post seems to indicae that you have one occurance of the problem at 9 am, with the posted conditions. The suggested problem was one of the controller may have a incorrect control sequence. It shoud be "reverse". The cooling coil controller is in "reverse". Is thare any other controllers or components which should be set to "reverse", for example, zone damper control.
Dr. Li
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: alpayakguc@xxxxxxxxx
Date: Mon, 9 Jul 2012 03:03:27 -0700
Subject: Re: [EnergyPlus_Support] Re: Controlling cooling coils
Hi Jean,
I send you all abject that you requested:
Coil:Cooling:Water
Name Air Loop Zemin AHU Cooling Coil
Availability Schedule Name 10019
Design Water Flow Rate autosize
Design Air Flow Rate autosize
Design Inlet Water Temperature autosize
Design Inlet Air Temperature autosize
Design Outlet Air Temperature autosize
Design Inlet Air Humidity Ratio autosize
Design Outlet Air Humidity Ratio autosize
Water Inlet Node Name Air Loop Zemin AHU Cooling Coil Water Inlet Node
Water Outlet Node Name Air Loop Zemin AHU Cooling Coil Water Outlet Node
Air Inlet Node Name Air Loop Zemin AHU Supply Fan Air Outlet Node
Air Outlet Node Name Air Loop Zemin Supply Side Outlet 1
Type of Analysis SimpleAnalysis
Heat Exchanger Configuration CrossFlow
Condensate Collection Water Storage Tank Name
Availability Schedule Name 10019
Design Water Flow Rate autosize
Design Air Flow Rate autosize
Design Inlet Water Temperature autosize
Design Inlet Air Temperature autosize
Design Outlet Air Temperature autosize
Design Inlet Air Humidity Ratio autosize
Design Outlet Air Humidity Ratio autosize
Water Inlet Node Name Air Loop Zemin AHU Cooling Coil Water Inlet Node
Water Outlet Node Name Air Loop Zemin AHU Cooling Coil Water Outlet Node
Air Inlet Node Name Air Loop Zemin AHU Supply Fan Air Outlet Node
Air Outlet Node Name Air Loop Zemin Supply Side Outlet 1
Type of Analysis SimpleAnalysis
Heat Exchanger Configuration CrossFlow
Condensate Collection Water Storage Tank Name
Controller:WaterCoil
Name Air Loop Zemin AHU Cooling Coil Controller
Control Variable Temperature
Action Reverse
Actuator Variable Flow
Sensor Node Name Air Loop Zemin Supply Side Outlet 1
Actuator Node Name Air Loop Zemin AHU Cooling Coil Water Inlet Node
Controller Convergence Tolerance autosize
Maximum Actuated Flow autosize
Minimum Actuated Flow 0.000
Control Variable Temperature
Action Reverse
Actuator Variable Flow
Sensor Node Name Air Loop Zemin Supply Side Outlet 1
Actuator Node Name Air Loop Zemin AHU Cooling Coil Water Inlet Node
Controller Convergence Tolerance autosize
Maximum Actuated Flow autosize
Minimum Actuated Flow 0.000
SetpointManager:Scheduled
Name Air Loop/1 Setpoint Manager
Control Variable Temperature
Schedule Name 10027
Setpoint Node or NodeList Name Air Loop Zemin Supply Side Outlet 1
Control Variable Temperature
Schedule Name 10027
Setpoint Node or NodeList Name Air Loop Zemin Supply Side Outlet 1
Schedule:Compact
Name 10027
Schedule Type Limits Name Any Number
Field 1 Through: 12/31
Field 2 For: AllDays
Field 3 Until: 24:00
Field 4 14
Schedule Type Limits Name Any Number
Field 1 Through: 12/31
Field 2 For: AllDays
Field 3 Until: 24:00
Field 4 14
Best regards
From:
Jean marais <jeannieboef@xxxxxxxxx>
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Sent: Monday, July 9, 2012 12:01 PM
Subject: [EnergyPlus_Support] Re: Controlling cooling coils
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Sent: Monday, July 9, 2012 12:01 PM
Subject: [EnergyPlus_Support] Re: Controlling cooling coils
Please post the setpoint managers objects from the idf that describe how your coils are controlled. Please also post the coil object, as the errors indicate that the action direction is wrong. The sequence of the coils is not your problem, but the setpoint managers may be incorrectly set up. If the heating coil sees very cold air and is told to heat to a certain point, it is self defeating. This setup is handled by the setpoint managers.
--- In mailto:EnergyPlus_Support%40yahoogroups.com, Ayzer Akguc <alpayakguc@...> wrote:
>
> Hi Jean,
> Â
> Thanks for your attention.
> Â
> Yes, the sequencing as predicted. What is the importance of the sequencing ? Does changing of the sequencing solve my problem ?
> Â
> Best regards.
>
>
> ________________________________
> From: Jean marais <jeannieboef@...>
> To: mailto:EnergyPlus_Support%40yahoogroups.com
> Sent: Saturday, July 7, 2012 11:43 PM
> Subject: [EnergyPlus_Support] Re: Controlling cooling coils
>
>
>
> Â
>
> Please post an extract of your idf showing the setpoint managers that you are using for your coils. I assume you have cooling coil then heating coil then fan?
> Also post the schedules used in your setpoint managers.
>
--- In mailto:EnergyPlus_Support%40yahoogroups.com, Ayzer Akguc <alpayakguc@...> wrote:
>
> Hi Jean,
> Â
> Thanks for your attention.
> Â
> Yes, the sequencing as predicted. What is the importance of the sequencing ? Does changing of the sequencing solve my problem ?
> Â
> Best regards.
>
>
> ________________________________
> From: Jean marais <jeannieboef@...>
> To: mailto:EnergyPlus_Support%40yahoogroups.com
> Sent: Saturday, July 7, 2012 11:43 PM
> Subject: [EnergyPlus_Support] Re: Controlling cooling coils
>
>
>
> Â
>
> Please post an extract of your idf showing the setpoint managers that you are using for your coils. I assume you have cooling coil then heating coil then fan?
> Also post the schedules used in your setpoint managers.
>
__._,_.___
Primary EnergyPlus support is found at:
http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx
The primary EnergyPlus web site is found at:
http://www.energyplus.gov
The group web site is:
http://groups.yahoo.com/group/EnergyPlus_Support/
Attachments are currently allowed but be mindful that not everyone has a high speed connection. Limit attachments to small files.
EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.
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