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I am modeling a lab building with a lot of equipment like steam sterilizers with direct steam consumption. I added steam equipment loads in the spaces and I am getting the OpenStudio output as MBtu's of steam consumed. However, I want the output in terms of natural gas used to produce that steam. Is there a way I can model a plant loop, add these steam equipment loads on the supply side and have a natural gas fired boiler producing steam on the demand side ? How can this be done in OpenStudio? Or is there any other way I can model steam consumption in spaces and natural gas consumption as the output?

I am modeling a lab building with a lot of equipment like steam sterilizers with direct steam consumption. I added steam equipment loads in the spaces and I am getting the OpenStudio output as MBtu's of steam consumed. consumed by the building in the OpenStudio output. However, I want the output in terms of natural gas used to produce that steam. Is there a way I can model a plant loop, add these steam equipment loads on the supply side and have a natural gas fired boiler producing steam on the demand side ? How can this be done in OpenStudio? Or is there any other way I can model steam consumption in spaces and natural gas consumption as the output?