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Hello everyone

I am a student currently developing my architectural dissertation. I have encountered a problem I have not been able to solve. I need to set up a combined, constant air volume system, with a fan coil system for a three story building. My dissertation is about optimising the glazing ratio. I have used several approaches to do so, specially using the example files from energy plus. First I tried setting up the HVAC exactly as the example file, which worked perfectly, however as soon as I added more zones the error appeared and increased the zones being left with a thermal zone = to zero. I am currently trying to set up the System for 34 thermal zones, 26 with CAF and 8 with Fan coil HVAC. I have tried using more than 2 AHU units to serve the multiple zones, as well as deleting my file and starting over but the issue persists. I have to say this is my first big project using energy plus and my understanding of HVAC system is rather limited. I have used the templates with the hope it would simplify the process but I haven't yet succeeded. I have uploaded the Error log as well as upload the link to my idf file.

I appreciate any help you might provide. C:\fakepath\Err log 1.PNGimage description(/upfiles/14696606447151096.png)

Hello everyone

I am a student currently developing my architectural dissertation. I have encountered a problem I have not been able to solve. I need to set up a combined, constant air volume system, with a fan coil system for a three story building. My dissertation is about optimising the glazing ratio. I have used several approaches to do so, specially using the example files from energy plus. First I tried setting up the HVAC exactly as the example file, which worked perfectly, however as soon as I added more zones the error appeared and increased the zones being left with a thermal zone = to zero. I am currently trying to set up the System for 34 thermal zones, 26 with CAF and 8 with Fan coil HVAC. I have tried using more than 2 AHU units to serve the multiple zones, as well as deleting my file changing the Heating and cooling set points and starting over but the issue persists. I have to say this is my first big project using energy plus and my understanding of HVAC system is rather limited. I have used the templates with the hope it would simplify the process but I haven't yet succeeded. I have uploaded the Error log as well as upload the link to my idf file.

I appreciate any help you might provide.

C:\fakepath\Err log 1.PNGimage description(http://www.mediafire.com/download/bpvgxdvcfgrp0j1/A1.1_FIRST_TWO_FLOORS_-_FINAL_shadinggs_1.7_HVAC_TEST_%28Changes%29.idf) C:\fakepath\Err log 2.PNG(/upfiles/14696606447151096.png)

I am a student currently developing my architectural dissertation. I have encountered a problem I have not been able to solve. I need to set up a combined, constant air volume system, with a fan coil system for a three story building. My dissertation is about optimising the glazing ratio. I have used several approaches to do so, specially using the example files from energy plus. plus.

First I tried setting up the HVAC exactly as the example file, which worked perfectly, however as soon as I added more zones the error appeared and increased the zones being left with a thermal zone = to zero. I am currently trying to set up the System for 34 thermal zones, 26 with CAF and 8 with Fan coil HVAC. I have tried using more than 2 AHU units to serve the multiple zones, as well as changing the Heating and cooling set points and starting over but the issue persists. I have to say this is my first big project using energy plus energyplus and my understanding of HVAC system is rather limited. I have used the templates with the hope it would simplify the process but I haven't yet succeeded. I have uploaded the Error log as well as upload the link to my idf file.

I appreciate any help you might provide.

C:\fakepath\Err log 1.PNG(http://www.mediafire.com/download/bpvgxdvcfgrp0j1/A1.1_FIRST_TWO_FLOORS_-_FINAL_shadinggs_1.7_HVAC_TEST_%28Changes%29.idf) C:\fakepath\Err log 2.PNG

I am a student currently developing my architectural dissertation. I have encountered a problem I have not been able to solve. I need to set up a combined, constant air volume system, with a fan coil system for a three story building. My dissertation is about optimising the glazing ratio. I have used several approaches to do so, specially using the example files from energy plus.

First I tried setting up the HVAC exactly as the example file, which worked perfectly, however as soon as I added more zones the error appeared and increased the zones being left with a thermal zone = to zero. I am currently trying to set up the System for 34 thermal zones, 26 with CAF and 8 with Fan coil HVAC. I have tried using more than 2 AHU units to serve the multiple zones, as well as changing the Heating and cooling set points and starting over but the issue persists. I have to say this is my first big project using energyplus and my understanding of HVAC system is rather limited. I have used the templates with the hope it would simplify the process but I haven't yet succeeded. I have uploaded the Error log as well as upload the link to my idf file.

I appreciate any help you might provide.

C:\fakepath\Err log 1.PNG

IDF File(http://www.mediafire.com/download/bpvgxdvcfgrp0j1/A1.1_FIRST_TWO_FLOORS_-_FINAL_shadinggs_1.7_HVAC_TEST_%28Changes%29.idf) C:\fakepath\Err log 2.PNG

I am a student currently developing my architectural dissertation. I have encountered a problem I have not been able to solve. I need to set up a combined, constant air volume system, with a fan coil system for a three story building. My dissertation is about optimising the glazing ratio. I have used several approaches to do so, specially using the example files from energy plus.

First I tried setting up the HVAC exactly as the example file, which worked perfectly, however as soon as I added more zones the error appeared and increased the zones being left with a thermal zone = to zero. I am currently trying to set up the System for 34 thermal zones, 26 with CAF and 8 with Fan coil HVAC. I have tried using more than 2 AHU units to serve the multiple zones, as well as changing the Heating and cooling set points and starting over but the issue persists. I have to say this is my first big project using energyplus and my understanding of HVAC system is rather limited. I have used the templates with the hope it would simplify the process but I haven't yet succeeded. I have uploaded the Error log as well as upload the link to my idf file.

I appreciate any help you might provide.

IDF File

I am a student currently developing my architectural dissertation. I have encountered a problem I have not been able to solve. I need to set up a combined, constant air volume system, with a fan coil system for a three story building. My dissertation is about optimising the glazing ratio. I have used several approaches to do so, specially using the example files from energy plus.

First I tried setting up the HVAC exactly as the example file, which worked perfectly, however as soon as I added more zones the error appeared and increased the zones being left with a thermal zone = to zero. I am currently trying to set up the System for 34 thermal zones, 26 with CAF and 8 with Fan coil HVAC. I have tried using more than 2 AHU units to serve the multiple zones, as well as changing the Heating and cooling set points and starting over but the issue persists. I have to say this is my first big project using energyplus and my understanding of HVAC system is rather limited. I have used the templates with the hope it would simplify the process but I haven't yet succeeded. I have uploaded the Error log as well as upload the link to my idf file.

I appreciate any help you might provide.

IDF File