RBallard's profile - activity

fenestration missing required property ' outside layer' I get this fatal error when running simulation. Using Open studi

Victoria, Canada, ASHRAE 4C

No. And that would not explain the absence of any heat at all. The calculated heat load is also higher than the calculat

Why do I have no heat energy and very high fan energy I have 3 story office building with a separate roof top package --

Why are zone ventilation loads not showing up in zone component summary Openstudio 2.1.0: I have zones with baseboard

This issue has been discussed before, with the understanding that the loop is missing the correct file Always On Discrete properly formatted with a value of 1. Now I have the same problem in a model file which has evolved from previous files that ran properly. Somewhere along the path to the current file, something changed in OS, so that now I see that the list of schedules in my model does not include any files at all under the tab Constant Schedules, whereas previous model files for the same project, which ran without the error, do show a file called Always On Discrete under the Constant Schedule tab. My problem is how do I get the Always On Discrete file back into my model? I have tried various things, including loading libraries from project which have the Always On Discrete file, but without success. My understanding of the previous discussion of this issue is that OS tries to make the file if it is missing, but something is keeping it from doing so in my current model. I am using OS 1.9 with Energy Plus and Sketchup 2015. I do not have a more current version of Sketchup, so I want to keep this compatible version of OS.

No, I dont think that is the problem. The OA system air temp. is neutral, but the problem is with the air temp. of the FC. The FC is autosized with design entering air temp of 69F and leaving air temp. of 90F, with inlet water at 158 and leaving water at 122. So why does the baseboard heater run without error but not the FC? The space temp. thermostat is the same for both, but the FC returns an error with a note that the thermostat set point at time of error is 0. I dont understand the error: what are the conditions that create it?

Office building with several small spaces needing small amount of heat to avoid Unmet loads, plus outside ventilation air. I added air loop with heater to supply ventilation air at room air temperature. To meet heat load I added baseboard heater, which worked. But, to model actual design I changed heater to fan coil auto sized. Simulation gave thousands of cfm for the fan coil, with very small temperature difference from room air, and an error saying that this difference was too small, with note that at time of error thermostat set point is 0 degrees. Why the error with the FC?

I am having the same problem. Baseboard hot water heaters work just fine, but fan coils show high fan energy consumption and thermostats are at 0. Did you ever get an answer to this?

Once I have the virtual fuel rate for a heating system, I need to find the virtual DES rate. The LEED documentation says that the virtual DES rate can be found in the minimum energy performance calculator, but I cant find it there. LEED 2009 DES procedure used a multiplier of 1.56 for hot water heating systems to get the virtual DES rate from the building virtual rate, but I am unable to find the multiplier for LEED v.4