12-1 Space Types in OpenStudio

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Hi, so, so far, we talked about different kinds of OpenStudio resources. Schedules, construction sets, internal loads. Now, we will talk about the most important thing here, space types. So many times I talked about space types. Well, they are kind of OpenStudio resources, again. Imagine they're kind of a package where you imply, I'm sorry, you provide information, like, schedules, and internal loads. And, you can assign it to different spaces. You just create them once and you can assign them again and again. If you go back to the OpenStudio interface and click on this 5th tab, which is, space type tab. You can see all these space types that you have in your project. But, before that, let me just save a new copy, here. Return underscore space type, save it, okay. And now, you can see I have different kind of space types as per the building that I selected, and the template that I selected in my SketchUp interface, if you remember.

The different kind of space types are something like, closed office, conference, corridor, IT room, lobby, open office, print room. They have their own properties related to what you selected in terms of template, building use type, and different kinds of space types, here, okay. You can see we did not provide any kind of construction set, here. Although, you can do it, but that's not appropriate. You can provide a schedule set, here. Definitely, you want to provide the schedule set at space types. That's the number one preferred location. Then, the next thing is, which we haven't talked yet, is, design specification, outdoor air. In your project you need to have some kind of specification for outdoor air, as well. Makes sense, right. As well as for infiltration. They are as per ASHRAE 62.1 standard.

If we click on this, this component, the first one, foreclosed office in this outdoor air column. You can see the properties here, in the added option. You can rename if you want. I can rename it something like, closed office ventilation. And, the outdoor air method can be some or maximum. If you are familiar with ASHRAE 62.1 standard, you can fill up all those values. For example, for office outdoor area flow per person is 5 CFM per person. Then you can have something like, outdoor air flow per floor area, outdoor total outer air flow. You can provide this schedule as well, if you want. For now, this is all right. This outdoor schedule will work as per the occupancy schedule. if you don't provide any schedule here, okay. You can apply that particular component to multiple entities. Like, how can you do it. I mean, I'm not, I don't want to do it, but, let's just like, you know. Imagine that you want to provide this outdoor air specification, even for conference. You can just select here, in this second column. Click on this, closed office ventilation. And it says, apply to selected.

This one is already selected and you want to assign this closed office ventilation. Or actually, it's outdoor air, okay. And then, select this, and apply to selected. You can see, like, this is the one of the shortcut to assign the components. You can do it from multiple ones. I'm going to bring the original one back to my conference space type. It lives here, in in my model. Design specification outdoor air. And, look for conference one, here. Drag and drop, okay. Again, like, that's one of the benefits of using that template generation method, or resource method. You need not to worry about changing all those outdoor air values as per ASHRAE 62.1. Your template automatically brings all those properties for you, okay. You can bring it from library. As I mentioned to you, how this library method works, in this design specification outdoor air. Just drag and drop. You can have different kind of templates, something like 189.1 2009. Drag and drop. Or, whichever you have in your model, you can create a new one, here. Just rename it, make some changes here directly, and you should be all right.  

Same thing with infiltration. Click on this infiltration, and similar kind of properties. You can have the calculation method, which is airflow per exterior area. That's the infiltration from your installation. You can provide schedule. You can provide total design flow rate, here. Like, the my design flow rate calculation method is, flow per exterior area. It will just look for this value here, which is flow per exterior surface area, which is 0.0446. If you want to give some air changes, you can do it, here. Just change the calculation method to air changes. And, make it, let's say, one air change per hour, okay. In case, for your design case, you want to make building with better insulation, which has less infiltration. Just save a new copy and change it to, let's say, .03 or something, okay. Very, very easy. Like, you know, you basically need to provide infiltration, and outdoor air specification for your space types. Which makes sense, right.

You need to have infiltration and some outdoor air the specification for an energy model, okay. And, you can also provide some kind of infiltration effective leakage areas. Just provide some area, here. We need not to worry about that much, for now. Let's just worry about this infiltration. If you all have provided this design flow rate, it should be all right for now, okay. The next step is this loads tab. And, in each and every space type, you have those loads. We worked on some of them earlier. We worked on some conference spaces. We can work on the space type, now. For example, if you want to create a new, let's say, a new lighting load for corridors. Or, let's say one vending machine in corridors. You can also do it.

Let's just do it. Like, if we implement for, to each and every corridor, if you have sent any additional load, here. Let's work on it. Go to loads, here. In electric equipment definitions, click on the plus sign. Let's say, vending machine load, peak load. That’s so the design level is 500 watts. And, it's on, let's say, from 8 a.m. to 6 p.m. On 100% of, okay. Go to schedules, click the plus sign, create a new fractional schedule, hit apply. Rename it to something like, vending machine schedule. And, as I mentioned, it's from 8 a.m. to, let’s say, 6 p.m., it’s 100%, okay. And, doing same thing for each and every weekdays, except Sunday.

Let's create a new profile, as we did earlier for Sunday's. Only for Sunday's, the machine doesn't work, okay. Which makes sense. Like, you know, there is nobody in the building on Sundays. What's the sense of having those vending machines running on Sundays, okay. Let's go to the space types, here. Go to my model. The new load and the new schedule lives in my model. Look for this, electric equipment definition, which is vending machine. Drag and drop, again, in conference room, here. I'm sorry it is supposed to be in loads. Click on loads. Drag and drop, here. And also, now you need to rename this, here. We can rename it something like, vending machine. Oh, I'm sorry. Actually, applied in conference. Just delete it for now.