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It appears that DOAS system with DCV acts as a constant volume system and when the out side air is reduced the remaining air is just returned. The issue with this is that the fan energy remains constant when in reality you want it to reduce in response to reduced outside air requirement.

This question may be related to similar question but does not solve the problem: https://unmethours.com/question/22140/how-to-model-doas-w-dcv-in-openstudio/

Also, this question suggests using a dual duct system. Would there be an additional energy penalties for using a dual duct system. Is there a better way of doing this:
https://unmethours.com/question/375/modeling-doas-in-energyplus-using-dual-duct-terminal/

It appears that DOAS system with DCV acts as a constant volume system and when the out side outdoor air is reduced the remaining air is just returned. The issue with this is that the fan energy remains constant when in reality you want it to reduce in response to reduced outside air requirement.

This question may be related to similar question but does not solve the problem: https://unmethours.com/question/22140/how-to-model-doas-w-dcv-in-openstudio/

Also, this question suggests using a dual duct system. Would there be an additional energy penalties for using a dual duct system. Is there a better way of doing this:
https://unmethours.com/question/375/modeling-doas-in-energyplus-using-dual-duct-terminal/

It appears that DOAS system with DCV acts as a constant volume system and when the outdoor air is reduced the remaining air is just returned. The issue with this is that the fan energy remains constant when in reality you want it to reduce in response to reduced outside air requirement.

This question may be related to similar question but it does not solve the problem: https://unmethours.com/question/22140/how-to-model-doas-w-dcv-in-openstudio/

Also, this question suggests using a dual duct system. Would there be an additional energy penalties for using a dual duct system. Is there a better way of doing this:
https://unmethours.com/question/375/modeling-doas-in-energyplus-using-dual-duct-terminal/

It appears that DOAS system with DCV acts as a constant volume system and when the outdoor air is reduced the remaining air is just returned. The issue with this is that the fan energy remains constant when in reality you want it to reduce in response to reduced outside air requirement.

This question may be related to similar question but it does not solve the problem: https://unmethours.com/question/22140/how-to-model-doas-w-dcv-in-openstudio/

Also, this question suggests using a dual duct system. Would there be an additional energy penalties for using a dual duct system. Is there a better way of doing this:
https://unmethours.com/question/375/modeling-doas-in-energyplus-using-dual-duct-terminal/