NREL / EnergyPlus

EnergyPlus™ is a whole building energy simulation program that engineers, architects, and researchers use to model both energy consumption and water use in buildings.
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TEPX / BCL Breaking Changes Associated With (new) EnergyPlus Table:Lookup object #7588

Open chrisbalbach opened 4 years ago

chrisbalbach commented 4 years ago

Issue overview

New E+ feature associated with #6749 causes the following breaking changes, relative to EnergyPlus v9.1.0 and related ecosystems.

1) TPEX/BCL VRF Indoor and Outdoor Unit Performance Data incompatible with E+ V9.2.0

.idf snippet files available from bcl.nrel.gov (performance data originally supplied to BCL via TPEX) for VRF Indoor and Outdoor unit objects currently use the "Table:TwoIndependentVariable" E+ object to represent performance data.

When these BCL objects are downloaded and applied to an E+ v9.2.0 file, there appears to be no way for E+ V9.2.0 to recognize them,

2) EnergyPlus file update utility missing object transformation rules.

The file update utility (v9.1.0->v9.2.0) that is included with EnergyPlus V9.2.0 does not appear to have a rule-set for transforming the deprecated "Table:TwoIndependentVariable" datafile format into the new "Table:Lookup" datafile format E+ object type.

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mitchute commented 4 years ago

@chrisbalbach it looks to me like "Table:TwoIndependentVariable" is an error. The original object was "Table:TwoIndependentVariables" (note the trailing "s"), and there is transition support for this object. I believe correcting that will address your issue, but feel free to send an input file if there's something else going on.

mjwitte commented 4 years ago

Also, be aware of a problem with the normalization input with the transition packaged with v9.2 for Table:MultiVariableLookup, #7560