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hello, can anyone help to solve this problem? I struggled for a long time.

I would like to study the impact of the amount of outdoor air on the annual energy consumption.

The simulation process is as follows：

1. I established a 1000 m3 single room. Use HVAC Template (CAV system) to calculate the total consumption.
2. Use DesignSpecification: Outdoor air and Exhaust Fan to simulate the Ventilation condition.
3. Firstly, I input 1m3/s air volume to the outdoor air and exhaust fan， record the energy consumption.
4. Then I input 2m3/s, 3m3/s, 4m3/s, 5m3/s... 10m3/s 15m3/s to the model, record the results separately.

I thought the energy consumption will increase proportionally with Outdoor air variation. And the energy difference between each unit will always keep the same. (Q=cm△h)

But the results show as below:

I wonder is this the correct way to simulate ? or is there any problem?

Appreciate if someone can help.

hello, can anyone help to solve this problem? I struggled for a long time.

I would like to study the impact of the amount of outdoor air on the annual energy consumption.

The simulation process is as follows：

1. I established a 1000 m3 single room. Use HVAC Template (CAV system) to calculate the total consumption.
2. Use DesignSpecification: Outdoor air and Exhaust Fan to simulate the Ventilation condition.
3. Firstly, I input 1m3/s air volume to the outdoor air and exhaust fan， record the energy consumption.
4. Then I input 2m3/s, 3m3/s, 4m3/s, 5m3/s... 10m3/s 15m3/s to the model, record the results separately.

I thought the energy consumption will increase proportionally with Outdoor air variation. And the energy difference between each unit will always keep the same. (Q=cm△h)

But the results show as below:

I wonder is this the correct way to simulate ? or is there any problem?

Appreciate if someone can help.