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I've been modeling a building in OpenStudio with air-cooled VRF and a DOAS for ventilation requirements. I've used the LG BCL components and have an air-cooled system working without a problem, however, when I take the IDF and set the condenser type to EvapCooled and rerun it I see no change in performance. The documentation shows the below formula for how the air temperature on the condensing unit is adjusted, are there additional changes that need to be made to observe a change? I have specified an EvapCondEffectiveness of 0.9.

Tcondinlet=(Twb,o)+(1−EvapCondEffectiveness)(Tdb,o−Twb,o)

I created the original model using OpenStudio 1.7.0 and I am using the latest version of EnergyPlus 8.2 to run this.

I've been modeling a building in OpenStudio with air-cooled VRF and a DOAS for ventilation requirements. I've used the LG BCL components and have an air-cooled system working without a problem, however, when I take the IDF and set the condenser type to EvapCooled and rerun it I see no change in performance. The documentation shows the below formula for how the air temperature on the condensing unit is adjusted, are there additional changes that need to be made to observe a change? I have specified an EvapCondEffectiveness of 0.9.0.9. I have also let most components autosize rather than using the specified manufacturer capacity as I'm just trying to get a rough estimate of the performance relationships.

Tcondinlet=(Twb,o)+(1−EvapCondEffectiveness)(Tdb,o−Twb,o)

I created the original model using OpenStudio 1.7.0 and I am using the latest version of EnergyPlus 8.2 to run this.

I've been modeling a building in OpenStudio with air-cooled VRF and a DOAS for ventilation requirements. I've used the LG BCL components and have an air-cooled system working without a problem, however, when I take the IDF and set the condenser type to EvapCooled and rerun it I see no change in performance. The documentation shows the below formula for how the air temperature on the condensing unit is adjusted, are there additional changes that need to be made to observe a change? Or is it something to do with using the Table:MultiVariableLookup object rather than a curve? I have specified an EvapCondEffectiveness of 0.9. I have also let most components autosize rather than using the specified manufacturer capacity as I'm just trying to get a rough estimate of the performance relationships.

Tcondinlet=(Twb,o)+(1−EvapCondEffectiveness)(Tdb,o−Twb,o)

I created the original model using OpenStudio 1.7.0 and I am using the latest version of EnergyPlus 8.2 to run this.

I've been modeling a building in OpenStudio with air-cooled VRF and a DOAS for ventilation requirements. I've used the LG BCL components and have an air-cooled system working without a problem, however, when I take the IDF and set the condenser type to EvapCooled and rerun it I see no change in performance. The documentation shows the below formula for how the air temperature on the condensing unit is adjusted, are there additional changes that need to be made to observe a change? Or is it something to do with using the Table:MultiVariableLookup object rather than a curve? I have specified an EvapCondEffectiveness of 0.9. I have also let most components autosize rather than using the specified manufacturer capacity as I'm just trying to get a rough estimate of the performance relationships.

Tcondinlet=(Twb,o)+(1−EvapCondEffectiveness)(Tdb,o−Twb,o)

I created the original model using OpenStudio 1.7.0 and I am using the latest version of EnergyPlus 8.2 to run this.