It is not normally advisable to connect the SHW and DHW using the same water source.
The DHW section is similar to Fig.118 of the version 7.1 I/O manual. The auxiliary heater can use natural gas.
The SHW is usually a closed water loop system, and not available for the whole year.
The solar collector panel example in the EPlus does not include any building geometry. There is another 5Zone example which has the DHW, SHW and the ChW, but without the solar collector panel.
All the multiple pipe connectins in you diagram will be replaced with spliter and mixers. Circulation pumps must be placed in the recommended loop position.
The DHW can be heated by the SHW loop feeding the auxiliary tank coil. DHW can be used to feed SHW if the water deposits, etc. from the water main are ignored.
Dr. Li
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: direzionecontraria@xxxxxxxx
Date: Tue, 17 Jul 2012 13:51:28 +0000
Subject: [EnergyPlus_Support] connections of the hot water storage tank
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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/
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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The DHW section is similar to Fig.118 of the version 7.1 I/O manual. The auxiliary heater can use natural gas.
The SHW is usually a closed water loop system, and not available for the whole year.
The solar collector panel example in the EPlus does not include any building geometry. There is another 5Zone example which has the DHW, SHW and the ChW, but without the solar collector panel.
All the multiple pipe connectins in you diagram will be replaced with spliter and mixers. Circulation pumps must be placed in the recommended loop position.
The DHW can be heated by the SHW loop feeding the auxiliary tank coil. DHW can be used to feed SHW if the water deposits, etc. from the water main are ignored.
Dr. Li
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: direzionecontraria@xxxxxxxx
Date: Tue, 17 Jul 2012 13:51:28 +0000
Subject: [EnergyPlus_Support] connections of the hot water storage tank
As you can see in the image http://img607.imageshack.us/img607/5029/hwdhwsolar.jpg
I'm modelling a HVAC plant in which a hot water storage tank is connected with a boiler (hot water is produced by the combustion of natural gas), a solar thermal loop, the hot water loop, and the domestic water loop. Therefore the network of inlet and outlet nodes is quite complicated.
The "Water Heater Configuration" of EnergyPlus (Figure 65 of input/output Reference) seems much more schematic.
Do you have any suggestion for my modelling work, please? Should I work with nodes, splitters, and mixer (e.g. the connection of the hot water storage tank with the HW loop and with the DHW loop could be common and then a splitter could divide the HW loop from the DHW loop)?
Best Regards
I'm modelling a HVAC plant in which a hot water storage tank is connected with a boiler (hot water is produced by the combustion of natural gas), a solar thermal loop, the hot water loop, and the domestic water loop. Therefore the network of inlet and outlet nodes is quite complicated.
The "Water Heater Configuration" of EnergyPlus (Figure 65 of input/output Reference) seems much more schematic.
Do you have any suggestion for my modelling work, please? Should I work with nodes, splitters, and mixer (e.g. the connection of the hot water storage tank with the HW loop and with the DHW loop could be common and then a splitter could divide the HW loop from the DHW loop)?
Best Regards
__._,_.___
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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