Re: [EnergyPlus_Support] WaterHeater Design in Solar collector system

["Jamie Bull jamiebull1@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx>]

What you describe should work, but you might be more explicit by setting the Source Side Flow Control Mode to StorageTank to model a passive tank.

Jamie

On Fri Nov 28 2014 at 1:11:47 PM 'jeannieboef@xxxxxxxxx' jeannieboef@xxxxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:

 

Sounds right. I've not looked at this object for some time so my memory of it is "rusty".

Mit freundlichen Grü�en- Sent from my iPhone (excuse the brevity)

i. A.

Jean Marais

b.i.g. bechtold

Tel.   +49 30 6706662-23

On 27.11.2014, at 15:39, "Bruce Ma brucema1988@xxxxxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:

 

Hi, 

Thanks for your reply. So if I set 2 WaterHeater objects, for one WaterHeater, if I input the Heater Maximum Capacity value to "0" and the Heater Control Type to "Cycle", does it mean this WaterHeater plays only as a storage tank which is used to store the hot water?

Sent from my iPhone

On 27 Nov 2014, at 21:26, Jean Marais jeannieboef@xxxxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:

 

In the loop to the solar panel, you want to feed the solar panel water as cold as you can, so the two tank system sounds better.

2014-11-27 10:02 GMT+01:00 Bruce Ma brucema1988@xxxxxxxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@xxxxxxxxxxxxxxx>:

 

Dear all,

I am modelling a solar desiccant cooling system using EPlus. My design is to using solar thermal energy to provide hot water for the regenerative heating coil to regenerate the return air which is used to drive the desiccant wheel.
My problem isï¼?for the solar collector system, I want to define a hot water storage tank which is used to store the hot water heated from the solar collector and to feed the regenerative heating coil. I also want to set up a backup heater for the storage tank in case of the solar is not enough. However I am not sure how many WaterHeater:Mixed objects I need to set in EPlus. Should I set up two WaterHeater:Mixed objects ï¼?one for storage tank and the other for backup heaterï¼?, or do I just need to set up one as the WaterHeater:Mixed object is both a storage tank and backup heater? Thanks very much if anyone can help me.

Bruce

Sent from my iPhone

__._,_.___

---

Posted by: Jamie Bull <jamiebull1@xxxxxxxxx>

---

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.

Visit Your Group

• New Members 9

• Privacy • Unsubscribe • Terms of Use

__,_._,___