Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
About Q1: I think it's a sizing issue. Click on the dashed line between the supply and demand side, on the right side of your screen, scroll down until you see the sizing parameters. When you add a new loop, by default, openstudio assumes that you're adding a heating loop. So you need to check the temperature setting in sizing:system based on your application.
About Q2: I usually do it by using EMS in E+. I have no idea about Openstudio. Sorry!
About Q3: I think a one-way common pipe is suitable for your application. In fact, it is needed for a flow mismatch between the two half loops (constant speed pump on the primary side and variable speed on the secondary side). An example of using a two-way common pipe is when you have thermal energy storage on the primary side of your cooling loop.
About Q4: Energyplus recommends that you always have a bypass pipe parallel with components in demand or supply branch. If it's not needed, energyplus will figure it out. So you don't have to worry about it.
| | 2 | No.2 Revision |
About Q1: About Q1: I think it's a sizing issue. Click on the dashed line between the supply and demand side, on the right side of your screen, scroll down until you see the sizing parameters. When you add a new loop, by default, openstudio assumes that you're adding a heating loop. So you need to check the temperature setting in sizing:system based on your application.
About Q2: About Q2: I usually do it by using EMS in E+. I have no idea about Openstudio. Sorry!
About Q3: About Q3: I think a one-way common pipe is suitable for your application. In fact, it is needed for a flow mismatch between the two half loops (constant speed pump on the primary side and variable speed on the secondary side). An example of using a two-way common pipe is when you have thermal energy storage on the primary side of your cooling loop.
About Q4: About Q4: Energyplus recommends that you always have a bypass pipe parallel with components in demand or supply branch. If it's not needed, energyplus will figure it out. So you don't have to worry about it.
