Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
Thank you @Dirkes for your comment. Indeed, as you said, that is unusual to model a small walk-in using the airchiller object, but I have chosen this model since I intend to monitor the zone internal temperature and since the walkin object is not capable of doing such a thing.
I also have some confusion on how E+ calculates the actual total cooling capacity for the European Standard Ratings If you could please help,.
In the documentation, the total capacity is calculated using the Rated Capacity and temperature difference (deltaT = the air inlet temperature - evaporating temperature)
On the codesource, the actual total cooling capacity is calculated using CoilCapTotEstimate = SHRCorrection * SensibleCapacityMax where SHRCorrection and SensibleCapacityMax is the Rated sensible capacity, but I can not find how the actual sensible cooling rate is calculated.
| | 2 | No.2 Revision |
Thank you @Dirkes for your comment. Indeed, as you said, that is unusual to model a small walk-in using the airchiller object, but I have chosen this model since I intend to monitor the zone internal temperature and since the walkin object is not capable of doing such a thing.
I also have some confusion on how E+ calculates the actual total cooling capacity for the European Standard Ratings If you could please help,.
In the documentation, the total capacity is calculated using the Rated Capacity and temperature difference (deltaT = the air inlet temperature - evaporating temperature)
On the codesource, the actual total cooling capacity is calculated using CoilCapTotEstimate = SHRCorrection * SensibleCapacityMax where SHRCorrection and SensibleCapacityMax is the Rated sensible capacity, but I can not find how the actual sensible cooling rate is calculated.
| | 3 | No.3 Revision |
Thank you @Dirkes for your comment. Indeed, as you said, that is unusual to model a small walk-in using the airchiller object, but I have chosen this model since I intend to monitor the zone internal temperature and since the walkin object is not capable of doing such a thing.
I also have some confusion on how E+ calculates the actual total cooling capacity for the European Standard Ratings If you could please help,.
In the documentation, the total capacity is calculated using the Rated Capacity and temperature difference (deltaT = the air inlet temperature - evaporating temperature)
On the codesource, the actual total cooling capacity is calculated using CoilCapTotEstimate = SHRCorrection * SensibleCapacityMax where SHRCorrection and SensibleCapacityMax is the Rated sensible capacity, but I can not find how the actual sensible cooling rate is calculated.
| | 4 | No.4 Revision |
Thank you @Dirkes @Jim for your comment. Indeed, as you said, that is unusual to model a small walk-in using the airchiller object, but I have chosen this model since I intend to monitor the zone internal temperature and since the walkin object is not capable of doing such a thing.
I also have some confusion on how E+ calculates the actual total cooling capacity for the European Standard Ratings If you could please help,.
In the documentation, the total capacity is calculated using the Rated Capacity and temperature difference (deltaT = the air inlet temperature - evaporating temperature)
On the codesource, the actual total cooling capacity is calculated using CoilCapTotEstimate = SHRCorrection * SensibleCapacityMax where SHRCorrection and SensibleCapacityMax is the Rated sensible capacity, but I can not find how the actual sensible cooling rate is calculated.
| | 5 | No.5 Revision |
Thank you @Jim Dirkes for your comment.
Indeed, as you said, that is unusual to model a small walk-in using the airchiller object, but I have chosen this model since I intend to monitor the zone internal temperature and since the walkin object is not capable of doing such a thing.
I also have some confusion on how E+ calculates the actual total cooling capacity for the European Standard Ratings If you could please help,.
In the documentation, the total capacity is calculated using the Rated Capacity and temperature difference (deltaT = the air inlet temperature - evaporating temperature)
On the codesource, the actual total cooling capacity is calculated using CoilCapTotEstimate = SHRCorrection * SensibleCapacityMax where SHRCorrection and SensibleCapacityMax is the Rated sensible capacity, but I can not find how the actual sensible cooling rate is calculated.
| | 6 | No.6 Revision |
Thank you @Jim Dirkes for your comment.
Indeed, as you said, that is unusual to model a small walk-in using the airchiller object, but I have chosen this model since I intend to monitor the zone internal temperature and since the walkin object is not capable of doing such a thing.
I also have some confusion on how E+ calculates the actual total cooling capacity for the European Standard Ratings If you could please help,.
In the documentation, the total capacity is calculated using the Rated Capacity and temperature difference (deltaT = the air inlet temperature - evaporating temperature)
On the codesource, the actual total cooling capacity is calculated using CoilCapTotEstimate = SHRCorrection * SensibleCapacityMax where SHRCorrection and SensibleCapacityMax is the Rated sensible capacity, but I can not find how the actual sensible cooling rate is calculated.
After I reviewed the code - even though I dont know nothing on C++ codeing - I might say that I kinda understand how E+ calculate the actual total capacity, so I made the flowchart below.
