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Hello everyone,

I want to understand what ruleset is used the autosize the baseline system in CBECC-com. I am working with CBECC-Com prototype model (High Rise NR). Does CBECC-Com use 1 cfm/sf and 400 cfm/ton to size the baseline? Does it take into account the envelope loads, type of glass and WWR of the building as well? If the proposed case has 50% WWR, does the baseline also assume 50% WWR? I also tried using the same model in Open studio but the system size was double of what Cbecc-com has. I want to understand why the difference?

Appreciate the help

Thanks Ranjani

Hello everyone,

I want to understand what ruleset is used the autosize the baseline system in CBECC-com. I am working with CBECC-Com prototype model (High Rise NR). Does CBECC-Com use 1 cfm/sf and 400 cfm/ton to size the baseline? Does it take into account the envelope loads, type of glass and WWR of the building as well? If the proposed case has 50% WWR, does the baseline also assume 50% WWR? I also tried using the same model in Open studio but the system size was double of what Cbecc-com has. I want to understand why the difference?

Appreciate the help

Thanks Ranjani

Hello everyone,

I want to understand what ruleset is used the autosize the baseline system in CBECC-com. I am working with CBECC-Com prototype model (High Rise NR). Does CBECC-Com use 1 cfm/sf and 400 cfm/ton to size the baseline? Does it take into account the envelope loads, type of glass and WWR of the building as well? If the proposed case has 50% WWR, does the baseline also assume 50% WWR? I also tried using the same model in Open studio but the system size was double of what Cbecc-com has. I want to understand why the difference?

Appreciate the help

Thanks Ranjani