Question-and-Answer Resource for the Building Energy Modeling Community
| 2015-08-19 18:42:03 -0500 | received badge | ● Student (source) |
| 2015-08-19 18:40:47 -0500 | asked a question | Does EnergyPlus need to be validated against DOE 2.2? In a project that we propose to use EnergyPlus to model VRF systems, our reviewer ask us to validate the EnergyPlus modeling tool against DOE 2.2. We would like to ask your opinions regarding whether EnergyPlus need to be validated against DOE 2.2? We believe we should use ASHRAE 140 as the standard to validate the modeling tools and we also believe EnergyPlus should be already validated by the standard and field studies. |
| 2015-08-19 18:24:36 -0500 | asked a question | Can EnergyPlus accurately model VRF systems? We did a study and compared different modeling tools. We found EnergyPlus has the most lab and field test data demonstrating the accuracy of the module. It also is able to model Heat Recovery VRF systems and it is able to model multiple HVAC systems per thermal zone. Therefore, EnergyPlus is able to model all of the common VRF installations in commercial buildings. We want to hear your comments. References EPRI (forthcoming), PG&E Emerging Technology study of a variable refrigerant flow system installed at the PG&E service office in Auburn, CA. Hwang, Yunho, et al. "Field Performance Measurements of VRF System with Subcooling Heat Exchanger." Purdue E-pubs. University of Purdue, 2012. Web. Aug. 2014. http://docs.lib.purdue.edu/cgi/viewco... Raustad, Richard. Domitrovic, Ron, et al. “Technical Subtopic 2.1: Modeling Variable Refrigerant Flow Heat Pump and Heat Recovery Equipment in EnergyPlus” Sept. 2013. Web. Aug. 2014 http://fsec.ucf.edu/en/publications/p... |
| 2015-08-19 18:24:36 -0500 | asked a question | Can EnergyPlus accurately model VRF Systems? We did a study to compare Simulation Tools for VRF systems. Some simulation tools have comprehensive modules with clear documentation and published lab and field testing, while others have no built-in VRF capabilities. The tool that rise to the top of the list for use in the VRF work paper update are EnergyPlus. While there is no perfect simulation tool for VRF systems, EnergyPlus is recommended to update the VRF work paper because it can model all common configurations of VRF systems and it has the most field test data supporting its operation. We would like to hear your comments about the EPLUS VRF modeling capabilities. |
