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2020-04-10 03:40:56 -0500 | commented answer | District cooling in IES-VE Can you please give more detail. How to combine and import data into the ApHVAC chiller system ? |
2019-09-09 19:55:06 -0500 | received badge | ● Popular Question (source) |
2019-01-06 21:47:04 -0500 | answered a question | E+ vs. IES: Loads Results comparison You can change IESVE calculation methodology to ASHRAE to check so. As I know, CIBES is more on steady state methode, AS |
2016-09-28 11:53:30 -0500 | marked best answer | Openstudio result viewer IP only, Is these a way to change result to SI ? Openstudio result viewer IP only, Is these a way to change result to SI ? I'm using OpenStudio 1.8.5 with new "space" feature, exciting. |
2016-05-24 03:22:09 -0500 | commented answer | Delete Subsurfaces without a Parent Surface I have same issue and did not find the way to fix it. |
2016-05-05 21:53:43 -0500 | commented answer | Water to Air heatpump curves - cooling mode Thank you very much, I was missed understand between E+ and IESVE, they are completely different when modeling Water to Air Heatpump. Problem is now solved. |
2016-04-27 04:53:32 -0500 | asked a question | Water to Air heatpump curves - cooling mode In energyplus or OpenStudio, when editing Cooling performance curves of Waterto Air heatpump, there are only 5 coefficients for both "Total cooling" and "Cooling Power". Only Sensible Cooling has 6 coefficients. I know that all the curves are Bi-quadratic, then normally they have 6 coefficients. So the question is: How do I treat data when generating my own curve. Generate 6 coefficients then use 5, abandon constant value. Or tell excel to force constant to zero ? Thank you. |
2016-04-27 03:16:59 -0500 | answered a question | Double skin facade providing outside air to AHUs I have not experienced this case in E+, I'm IESVE user. But I think the concept for getting this done is the same. As usual with double skin facade, I model cavity zones as thermal zones, separated them as individual thermal zone at each floor, cavities are connected vertically. In case I realize this for study, I separate them to 2 or even 4 at each floor to see roughly how the temperature gradient inside the cavity. Then using air net work on IESVE to connect them all and connect to AHU. Hope this can help. |
2016-04-14 08:48:55 -0500 | received badge | ● Enthusiast |
2016-04-14 08:48:54 -0500 | received badge | ● Enthusiast |
2016-04-13 11:23:46 -0500 | answered a question | VAV works like CAV? Fan should have flow control to manage how it’ll function, but current Openstudio does not provide enough flow control. You can try “Warmest Zone Supply Temp and Flow Reset” and set Strategy: FlowFirst – This is only flow control that I see in OS. Temperature control can be placed to other node.
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2016-04-12 07:23:30 -0500 | received badge | ● Teacher (source) |
2016-04-12 02:19:48 -0500 | commented answer | Simulation failed when building has a glassdoor Hi Julien, I do not know how to mark the answer as accepted, can you point it out, thanks ! |
2016-04-12 02:14:25 -0500 | commented answer | Simulation failed when building has a glassdoor Yes, thank you, we are very prudent with geometry |
2016-04-11 20:57:54 -0500 | answered a question | VRF performance curve for non-flat low/high CapFT values Here is the document about generating VRF performance curve: |
2016-03-31 23:48:15 -0500 | commented answer | Curiosity about Openstudio 2.0 Thank you Matthew, "applying to selected" works well for individual device, except VRF terminal. Terminals show in the thermal zones tab but will not show in HVAC system tab / VRF then generate error when simulation. For HVAC split, I wish it has "select all" tick at the top of thermal zones list. |
2016-03-31 23:32:40 -0500 | commented question | Curiosity about Openstudio 2.0 Roger that ! Mr. MatthewSteen :) Thank you. Mr David. |
2016-03-31 02:19:03 -0500 | asked a question | Curiosity about Openstudio 2.0 New version of OpenStudio is planed to release on September so I would like to know that in the new version, is there any change or improvement on User Interface, especially on Sketchup plugin. And in Openstudio main application, when I have model that has many thermal zones, it has to drag & drop many times to VRF or to Airloop, it's boring task, I wish Openstudio 2.0 will have multiple selection for better drag & drop thermal zone to HVAC. |
2015-10-04 21:22:07 -0500 | commented answer | Humidity control makes OS simulation fail thanks a lot ! it works like a charm :) |
2015-10-02 11:27:19 -0500 | commented question | Humidity control makes OS simulation fail no one see this error when doing simulation ? :o |
2015-09-29 21:38:04 -0500 | marked best answer | Simulation failed when building has a glassdoor I have tested OS without using WWR scrip, simple building in image below. By default, from version 1.6 (may be wrong) OS set a rectangle that touch the bottom of each level as glassdoor and then simulation failed. Changing glass door to fix windows can fix this issue, E+ run fine. (I use VRF system in this case. OS 1.8.5) I think there are something wrong when OS translates glassdoor into E+. EDITHere is the eplusout.err |
2015-09-29 21:38:04 -0500 | received badge | ● Scholar (source) |
2015-09-29 02:58:24 -0500 | edited question | Humidity control makes OS simulation fail When I put humidity control into HVAC air side network, any kind of humidity control makes simulation fail. And I tried to fix this problem, but still no way. Humidity setpoint does not show as an icon in the airloop network (fig 1), it simply disapered, but it's properties apper on the left pane - then simulation fail, there is no way to delete this setpoint control. In case replacing humidity setpoint by a temperature setpoint (drop to the same node), I got both properties for temperature and humidity on the left, simulation fail too (fig 2) Only way to fix this condition is to delete whole airside and rebuild, oh yes, rebuild :) |
2015-09-29 01:55:41 -0500 | asked a question | ViewModel measure goes wrong when building orientation non-zero When building orientation = 0 Then, put non zero Result ! opps hope fully this is only presentation in viewmodel that makes fault, not E+'s shading calculation error. |