Question-and-Answer Resource for the Building Energy Modeling Community
| 2023-04-11 08:27:01 -0500 | commented question | Air-to-Water central heat pump hello ,@Aaron Boranian I have tried to update the OpenStudio version to the latest 3.5.1, but I still cannot display the |
| 2023-04-10 11:34:44 -0500 | edited question | Air-to-Water central heat pump Water-to-Air central heat pump Hi, I am trying to evaluate the replacement of a gas boiler for an office building air-c |
| 2023-04-10 11:32:03 -0500 | commented question | Air-to-Water central heat pump OK, I tried searching in the OpenStudio library (version 1.5.0), but there isn't a component with that name. Could it ha |
| 2023-04-10 10:55:55 -0500 | commented question | Air-to-Water central heat pump excuse me, I mean a heat pump that, in winter operation, uses outside air as a source at the evaporator and produces hot |
| 2023-04-07 15:23:04 -0500 | asked a question | Air-to-Water central heat pump Water-to-Air central heat pump Hi, I am trying to evaluate the replacement of a gas boiler for an office building air-c |
| 2023-03-07 02:22:59 -0500 | commented answer | Boiler inlet temperature doesn't drop as expected Thanks for your support Aaron. I've changed the circuit's mass flow rate, which was really too high, and now the tempera |
| 2023-03-07 02:17:27 -0500 | marked best answer | Boiler inlet temperature doesn't drop as expected Hi, I am a beginner with e+ and OS. I would like to ask you for some advice on a project I am completing with OS. I am trying to simulate an HVAC system served only by two pipe fan coils. I modelled the system as suggested in this discussion (Here) and it seems to work during the summer, but I have some problems during the heating period. First of all, I attach the layout of the system and would like to ask if it is correct not to define an air loop. I have only assigned FourPipeFanCoil units for each thermal zone and then connected them to the chilled and hot water loop, so without defining a dedicated air loop for each unit (fan coils do not have a dedicated air loop). Then I would like to ask why, if I graph the inlet/outlet temperature of the boiler, I have these results. It seems to me that the temperature does not drop as I would expect, and I do not know why in summer it does not drop accordingly with the shutdown of the system (I forced the plant off with availability scheduled off manager). In general, the model simulates less gas consumption than the real one and I think that this could be the problem. EDIT: I m going to attach a more readable graph of temperatures and water flow rate through the boiler |
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| 2023-03-04 14:06:14 -0500 | commented question | Boiler inlet temperature doesn't drop as expected Hi Aaron, thanks for your reply. I've edited the question with two new graphs where you can see the mass flow rate throu |
| 2023-03-04 14:06:08 -0500 | edited question | Boiler inlet temperature doesn't drop as expected Boiler inlet temperature doesn't drop as expected Hi, I am a beginner with e+ and OS. I would like to ask you for some a |
| 2023-03-03 15:47:18 -0500 | asked a question | Boiler inlet temperature doesn't drop as expected Boiler inlet temperature doesn't drop as expected Hi, I am a beginner with e+ and OS. I would like to ask you for some a |
