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Merge pull request #4932 from NREL/ghx-vert
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Support undisturbed ground temperature models on GroundHeatExchangerVertical
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@joseph-robertson
joseph-robertson authored Aug 1, 2023
2 parents 84bd57c + c10e1b7 commit 34180f2
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3 changes: 3 additions & 0 deletions developer/doc/ReleaseNotes/OpenStudio_Release_Notes_3_7_0_TDB.md
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Expand Up @@ -78,6 +78,9 @@ You can also refer to the [OpenStudio SDK Python Binding Version Compatibility M
* Fix #4695 - AirLoopHVACUnitarySystem: Supply Air Flow Rate Method During <XXX> Operation should be set via related setters/autosize
* Breaks the return of `supplyAirFlowRateMethodDuringCoolingOperation` and `supplyAirFlowRateMethodDuringHeatingOperation`: now returns `std::string` instead of `boost::optional<std::string>`
* Deprecates many set/reset methods
* [#4932](https://github.com/NREL/OpenStudio/pull/4932) - Support undisturbed ground temperature models on GroundHeatExchangerVertical
* Fix #4930 - Support undisturbed ground temperature models on GroundHeatExchangerVertical
* Update `GroundHeatExchanger:Vertical` to actually use the Ground Temeprature Model field

## Minor changes and bug fixes

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8 changes: 6 additions & 2 deletions resources/model/OpenStudio.idd
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Expand Up @@ -16671,8 +16671,8 @@ OS:DistrictHeating,

OS:GroundHeatExchanger:Vertical,
\extensible:2
\min-fields 21
\max-fields 219
\min-fields 22
\max-fields 220
\memo Variable short time step vertical ground heat exchanger model based on
\memo Yavuztruk, C., J.D.Spitler. 1999. A Short Time Step response Factor Model for
\memo Vertical Ground Loop Heat Exchangers
Expand Down Expand Up @@ -16750,6 +16750,10 @@ OS:GroundHeatExchanger:Vertical,
N13, \field Maximum Length of Simulation
\type real
\minimum> 0.0
A5, \field Undisturbed Ground Temperature Model
\required-field
\type object-list
\object-list UndisturbedGroundTempModels
N14, \field G-Function Reference Ratio
\type real
\units dimensionless
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1 change: 1 addition & 0 deletions src/energyplus/CMakeLists.txt
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Expand Up @@ -735,6 +735,7 @@ set(${target_name}_test_src
Test/GeneratorMicroTurbine_GTest.cpp
Test/GeneratorWindTurbine_GTest.cpp
Test/GroundHeatExchangerHorizontalTrench_GTest.cpp
Test/GroundHeatExchangerVertical_GTest.cpp
Test/HeatExchangerDesiccantBalancedFlow_GTest.cpp
Test/HeatExchangerDesiccantBalancedFlowPerformanceDataType1_GTest.cpp
Test/HeatPumpAirToWaterFuelFired_GTest.cpp
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47 changes: 19 additions & 28 deletions src/energyplus/ForwardTranslator/ForwardTranslateGroundHeatExchangerVertical.cpp
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Expand Up @@ -15,7 +15,6 @@
#include <utilities/idd/GroundHeatExchanger_System_FieldEnums.hxx>
#include <utilities/idd/GroundHeatExchanger_Vertical_Properties_FieldEnums.hxx>
#include <utilities/idd/GroundHeatExchanger_ResponseFactors_FieldEnums.hxx>
#include <utilities/idd/Site_GroundTemperature_Undisturbed_KusudaAchenbach_FieldEnums.hxx>
#include "../../utilities/idd/IddEnums.hpp"
#include <utilities/idd/IddEnums.hxx>
#include <utilities/idd/IddFactory.hxx>
Expand Down Expand Up @@ -91,6 +90,17 @@ namespace energyplus {
// 1 { GroundHeatExchanger_ResponseFactorsExtensibleFields::gFunctionLn_T_Ts_Value, "gFunctionLn_T_Ts_Value", "g-Function Ln(T/Ts) Value"},
// 2 { GroundHeatExchanger_ResponseFactorsExtensibleFields::gFunctiongValue, "gFunctiongValue", "g-Function g Value"},

// UndisturbedGroundTemperatureModelName, is required, so start by that
ModelObject undisturbedGroundTemperatureModel = modelObject.undisturbedGroundTemperatureModel();
boost::optional<IdfObject> _undisturbedGroundTemperatureModel = translateAndMapModelObject(undisturbedGroundTemperatureModel);
if (_undisturbedGroundTemperatureModel) {
s = _undisturbedGroundTemperatureModel->name().get();
} else {
LOG(Warn, modelObject.briefDescription() << " cannot be translated as its undisturbed ground temperature model object cannot be translated: "
<< undisturbedGroundTemperatureModel.briefDescription() << ".");
return boost::none;
}

// Name
IdfObject idfObject = createRegisterAndNameIdfObject(openstudio::IddObjectType::GroundHeatExchanger_System, modelObject);

Expand All @@ -104,25 +114,29 @@ namespace energyplus {
idfObject.setString(GroundHeatExchanger_SystemFields::OutletNodeName, temp->name().get());
}

// Maximum Flow Rate
// Design Flow Rate
if ((value = modelObject.designFlowRate())) {
idfObject.setDouble(GroundHeatExchanger_SystemFields::DesignFlowRate, value.get());
}

// Undisturbed Ground Temperature Model Type
idfObject.setString(GroundHeatExchanger_SystemFields::UndisturbedGroundTemperatureModelType,
"Site:GroundTemperature:Undisturbed:KusudaAchenbach");
_undisturbedGroundTemperatureModel->iddObject().name());

auto groundModelName = modelObject.nameString() + " Ground Temps";
idfObject.setString(GroundHeatExchanger_SystemFields::UndisturbedGroundTemperatureModelName, groundModelName);
// Undisturbed Ground Temperature Model Name
idfObject.setString(GroundHeatExchanger_SystemFields::UndisturbedGroundTemperatureModelName, s.get());

// Ground Thermal Conductivity
if ((value = modelObject.groundThermalConductivity())) {
idfObject.setDouble(GroundHeatExchanger_SystemFields::GroundThermalConductivity, value.get());
}

// Ground Thermal Heat Capacity
if ((value = modelObject.groundThermalHeatCapacity())) {
idfObject.setDouble(GroundHeatExchanger_SystemFields::GroundThermalHeatCapacity, value.get());
}

// GHE:Vertical:ResponseFactors Object Name
auto responseFactorsObjectName = modelObject.nameString() + " Response Factors";
idfObject.setString(GroundHeatExchanger_SystemFields::GHE_Vertical_ResponseFactorsObjectName, responseFactorsObjectName);

Expand Down Expand Up @@ -166,29 +180,6 @@ namespace energyplus {
propertiesIdfObject.setDouble(GroundHeatExchanger_Vertical_PropertiesFields::UTubeDistance, value.get());
}

IdfObject groundIdfObject(IddObjectType::Site_GroundTemperature_Undisturbed_KusudaAchenbach);
m_idfObjects.push_back(groundIdfObject);

groundIdfObject.setName(groundModelName);

if ((value = modelObject.groundThermalConductivity())) {
groundIdfObject.setDouble(Site_GroundTemperature_Undisturbed_KusudaAchenbachFields::SoilThermalConductivity, value.get());
}

groundIdfObject.setDouble(Site_GroundTemperature_Undisturbed_KusudaAchenbachFields::SoilDensity, 920.0);

if ((value = modelObject.groundThermalHeatCapacity())) {
groundIdfObject.setDouble(Site_GroundTemperature_Undisturbed_KusudaAchenbachFields::SoilSpecificHeat, value.get() / 920.0);
}

if ((value = modelObject.groundTemperature())) {
groundIdfObject.setDouble(Site_GroundTemperature_Undisturbed_KusudaAchenbachFields::AverageSoilSurfaceTemperature, value.get());
}

groundIdfObject.setDouble(Site_GroundTemperature_Undisturbed_KusudaAchenbachFields::AverageAmplitudeofSurfaceTemperature, 3.2);

groundIdfObject.setDouble(Site_GroundTemperature_Undisturbed_KusudaAchenbachFields::PhaseShiftofMinimumSurfaceTemperature, 8.0);

IdfObject rfIdfObject(IddObjectType::GroundHeatExchanger_ResponseFactors);
m_idfObjects.push_back(rfIdfObject);

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121 changes: 121 additions & 0 deletions src/energyplus/Test/GroundHeatExchangerVertical_GTest.cpp
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@@ -0,0 +1,121 @@
/***********************************************************************************************************************
* OpenStudio(R), Copyright (c) Alliance for Sustainable Energy, LLC.
* See also https://openstudio.net/license
***********************************************************************************************************************/

#include <gtest/gtest.h>
#include "EnergyPlusFixture.hpp"

#include "../ForwardTranslator.hpp"
#include "../ReverseTranslator.hpp"

#include "../../model/Model.hpp"
#include "../../model/GroundHeatExchangerVertical.hpp"
#include "../../model/GroundHeatExchangerVertical_Impl.hpp"
#include "../../model/PlantLoop.hpp"
#include "../../model/Node.hpp"
#include "../../model/Node_Impl.hpp"

#include "../../utilities/idf/IdfFile.hpp"
#include "../../utilities/idf/Workspace.hpp"
#include "../../utilities/idf/IdfObject.hpp"
#include "../../utilities/idf/WorkspaceObject.hpp"

#include <utilities/idd/GroundHeatExchanger_System_FieldEnums.hxx>
#include <utilities/idd/Site_GroundTemperature_Undisturbed_KusudaAchenbach_FieldEnums.hxx>
#include <utilities/idd/GroundHeatExchanger_ResponseFactors_FieldEnums.hxx>
#include <utilities/idd/GroundHeatExchanger_Vertical_Properties_FieldEnums.hxx>
#include <utilities/idd/IddEnums.hxx>

using namespace openstudio::energyplus;
using namespace openstudio::model;
using namespace openstudio;

TEST_F(EnergyPlusFixture, ForwardTranslator_GroundHeatExchangerVertical) {

ForwardTranslator ft;

// Create a model
Model m;

GroundHeatExchangerVertical ghx(m);

EXPECT_TRUE(ghx.setDesignFlowRate(0.004));
EXPECT_TRUE(ghx.setNumberofBoreHoles(100));
EXPECT_TRUE(ghx.setBoreHoleLength(80.0));
EXPECT_TRUE(ghx.setBoreHoleRadius(0.7E-01));
EXPECT_TRUE(ghx.setGroundThermalConductivity(0.7));
EXPECT_TRUE(ghx.setGroundThermalHeatCapacity(0.3E+07));
EXPECT_TRUE(ghx.setGroundTemperature(14.0));
EXPECT_TRUE(ghx.setGroutThermalConductivity(0.7));
EXPECT_TRUE(ghx.setPipeThermalConductivity(0.4));
EXPECT_TRUE(ghx.setPipeOutDiameter(2.7E-02));
EXPECT_TRUE(ghx.setUTubeDistance(2.6E-02));
EXPECT_TRUE(ghx.setPipeThickness(2.5E-03));
EXPECT_TRUE(ghx.setMaximumLengthofSimulation(3));
EXPECT_TRUE(ghx.setGFunctionReferenceRatio(0.001));

PlantLoop p(m);
EXPECT_TRUE(p.addSupplyBranchForComponent(ghx));

ASSERT_TRUE(ghx.inletModelObject());
ASSERT_TRUE(ghx.inletModelObject()->optionalCast<Node>());
ghx.inletModelObject()->cast<Node>().setName("GHX Inlet Node");

ASSERT_TRUE(ghx.outletModelObject());
ASSERT_TRUE(ghx.outletModelObject()->optionalCast<Node>());
ghx.outletModelObject()->cast<Node>().setName("GHX Outlet Node");

const Workspace w = ft.translateModel(m);

WorkspaceObjectVector idfObjs = w.getObjectsByType(IddObjectType::GroundHeatExchanger_System);
ASSERT_EQ(1u, idfObjs.size());
auto idfObject = idfObjs.front();

EXPECT_EQ("Ground Heat Exchanger Vertical 1", idfObject.getString(GroundHeatExchanger_SystemFields::Name).get());
EXPECT_EQ("GHX Inlet Node", idfObject.getString(GroundHeatExchanger_SystemFields::InletNodeName).get());
EXPECT_EQ("GHX Outlet Node", idfObject.getString(GroundHeatExchanger_SystemFields::OutletNodeName).get());
EXPECT_EQ(0.004, idfObject.getDouble(GroundHeatExchanger_SystemFields::DesignFlowRate).get());

EXPECT_EQ("Site:GroundTemperature:Undisturbed:KusudaAchenbach",
idfObject.getString(GroundHeatExchanger_SystemFields::UndisturbedGroundTemperatureModelType).get());

ASSERT_TRUE(idfObject.getTarget(GroundHeatExchanger_SystemFields::UndisturbedGroundTemperatureModelName));
const WorkspaceObject kusuda = idfObject.getTarget(GroundHeatExchanger_SystemFields::UndisturbedGroundTemperatureModelName).get();
EXPECT_EQ(IddObjectType{IddObjectType::Site_GroundTemperature_Undisturbed_KusudaAchenbach}, kusuda.iddObject().type());

EXPECT_EQ(0.7, idfObject.getDouble(GroundHeatExchanger_SystemFields::GroundThermalConductivity).get());
EXPECT_EQ(0.3E+07, idfObject.getDouble(GroundHeatExchanger_SystemFields::GroundThermalHeatCapacity).get());

ASSERT_TRUE(idfObject.getTarget(GroundHeatExchanger_SystemFields::GHE_Vertical_ResponseFactorsObjectName));
const WorkspaceObject response = idfObject.getTarget(GroundHeatExchanger_SystemFields::GHE_Vertical_ResponseFactorsObjectName).get();
EXPECT_EQ(IddObjectType{IddObjectType::GroundHeatExchanger_ResponseFactors}, response.iddObject().type());

EXPECT_TRUE(idfObject.isEmpty(GroundHeatExchanger_SystemFields::gFunctionCalculationMethod));
ASSERT_FALSE(idfObject.getTarget(GroundHeatExchanger_SystemFields::GHE_Vertical_ArrayObjectName));

EXPECT_EQ(0.692626, kusuda.getDouble(Site_GroundTemperature_Undisturbed_KusudaAchenbachFields::SoilThermalConductivity).get());
EXPECT_EQ(920.0, kusuda.getDouble(Site_GroundTemperature_Undisturbed_KusudaAchenbachFields::SoilDensity).get());
EXPECT_DOUBLE_EQ(0.234700E+07 / 920.0, kusuda.getDouble(Site_GroundTemperature_Undisturbed_KusudaAchenbachFields::SoilSpecificHeat).get());
EXPECT_EQ(13.375, kusuda.getDouble(Site_GroundTemperature_Undisturbed_KusudaAchenbachFields::AverageSoilSurfaceTemperature).get());
EXPECT_EQ(3.2, kusuda.getDouble(Site_GroundTemperature_Undisturbed_KusudaAchenbachFields::AverageAmplitudeofSurfaceTemperature).get());
EXPECT_EQ(8.0, kusuda.getDouble(Site_GroundTemperature_Undisturbed_KusudaAchenbachFields::PhaseShiftofMinimumSurfaceTemperature).get());

ASSERT_TRUE(response.getTarget(GroundHeatExchanger_ResponseFactorsFields::GHE_Vertical_PropertiesObjectName));
const WorkspaceObject properties = response.getTarget(GroundHeatExchanger_ResponseFactorsFields::GHE_Vertical_PropertiesObjectName).get();
EXPECT_EQ(IddObjectType{IddObjectType::GroundHeatExchanger_Vertical_Properties}, properties.iddObject().type());

EXPECT_EQ(100, response.getDouble(GroundHeatExchanger_ResponseFactorsFields::NumberofBoreholes).get());
EXPECT_EQ(0.001, response.getDouble(GroundHeatExchanger_ResponseFactorsFields::GFunctionReferenceRatio).get());

EXPECT_EQ(1, properties.getDouble(GroundHeatExchanger_Vertical_PropertiesFields::DepthofTopofBorehole).get());
EXPECT_EQ(80.0, properties.getDouble(GroundHeatExchanger_Vertical_PropertiesFields::BoreholeLength).get());
EXPECT_EQ(0.7E-01 * 2, properties.getDouble(GroundHeatExchanger_Vertical_PropertiesFields::BoreholeDiameter).get());
EXPECT_EQ(0.7, properties.getDouble(GroundHeatExchanger_Vertical_PropertiesFields::GroutThermalConductivity).get());
EXPECT_EQ(3.90E+06, properties.getDouble(GroundHeatExchanger_Vertical_PropertiesFields::GroutThermalHeatCapacity).get());
EXPECT_EQ(0.4, properties.getDouble(GroundHeatExchanger_Vertical_PropertiesFields::PipeThermalConductivity).get());
EXPECT_EQ(1.77E+06, properties.getDouble(GroundHeatExchanger_Vertical_PropertiesFields::PipeThermalHeatCapacity).get());
EXPECT_EQ(2.7E-02, properties.getDouble(GroundHeatExchanger_Vertical_PropertiesFields::PipeOuterDiameter).get());
EXPECT_EQ(2.5E-03, properties.getDouble(GroundHeatExchanger_Vertical_PropertiesFields::PipeThickness).get());
EXPECT_EQ(2.6E-02, properties.getDouble(GroundHeatExchanger_Vertical_PropertiesFields::UTubeDistance).get());
}
93 changes: 93 additions & 0 deletions src/model/GroundHeatExchangerVertical.cpp
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Expand Up @@ -9,6 +9,8 @@
#include "Node_Impl.hpp"
#include "Model.hpp"
#include "Model_Impl.hpp"
#include "SiteGroundTemperatureUndisturbedKusudaAchenbach.hpp"
#include "SiteGroundTemperatureUndisturbedKusudaAchenbach_Impl.hpp"

#include "../utilities/core/Assert.hpp"
#include "../utilities/data/DataEnums.hpp"
Expand Down Expand Up @@ -113,6 +115,14 @@ namespace model {
return isEmpty(OS_GroundHeatExchanger_VerticalFields::GFunctionReferenceRatio);
}

ModelObject GroundHeatExchangerVertical_Impl::undisturbedGroundTemperatureModel() const {
boost::optional<ModelObject> modelObject;
modelObject =
getObject<ModelObject>().getModelObjectTarget<ModelObject>(OS_GroundHeatExchanger_VerticalFields::UndisturbedGroundTemperatureModel);
OS_ASSERT(modelObject);
return modelObject.get();
}

bool GroundHeatExchangerVertical_Impl::setNumberofBoreHoles(boost::optional<int> numberofBoreHoles) {
bool result(false);
if (numberofBoreHoles) {
Expand Down Expand Up @@ -319,6 +329,11 @@ namespace model {
OS_ASSERT(result);
}

bool GroundHeatExchangerVertical_Impl::setUndisturbedGroundTemperatureModel(const ModelObject& undisturbedGroundTemperatureModel) {
bool result = setPointer(OS_GroundHeatExchanger_VerticalFields::UndisturbedGroundTemperatureModel, undisturbedGroundTemperatureModel.handle());
return result;
}

unsigned GroundHeatExchangerVertical_Impl::inletPort() const {
return OS_GroundHeatExchanger_VerticalFields::InletNodeName;
}
Expand Down Expand Up @@ -476,6 +491,76 @@ namespace model {
addGFunction(2.028, 71.361);
addGFunction(2.275, 71.79);
addGFunction(3.003, 72.511);

SiteGroundTemperatureUndisturbedKusudaAchenbach undisturbedGroundTemperatureModel(model);
undisturbedGroundTemperatureModel.setSoilThermalConductivity(groundThermalConductivity().get());
undisturbedGroundTemperatureModel.setSoilDensity(920.0);
undisturbedGroundTemperatureModel.setSoilSpecificHeat(groundThermalHeatCapacity().get() / 920.0);
undisturbedGroundTemperatureModel.setAverageSoilSurfaceTemperature(groundTemperature().get());
undisturbedGroundTemperatureModel.setAverageAmplitudeofSurfaceTemperature(3.2);
undisturbedGroundTemperatureModel.setPhaseShiftofMinimumSurfaceTemperature(8.0);
setUndisturbedGroundTemperatureModel(undisturbedGroundTemperatureModel);
}

GroundHeatExchangerVertical::GroundHeatExchangerVertical(const Model& model, const ModelObject& undisturbedGroundTemperatureModel)
: StraightComponent(GroundHeatExchangerVertical::iddObjectType(), model) {
OS_ASSERT(getImpl<detail::GroundHeatExchangerVertical_Impl>());

bool ok = setUndisturbedGroundTemperatureModel(undisturbedGroundTemperatureModel);
if (!ok) {
remove();
LOG_AND_THROW("Unable to set " << briefDescription() << "'s Undisturbed Ground Temperature Model to "
<< undisturbedGroundTemperatureModel.briefDescription() << ".");
}
setNumberofBoreHoles(120);
setBoreHoleLength(76.2);
setBoreHoleRadius(0.635080E-01);
setGroundThermalConductivity(0.692626);
setGroundThermalHeatCapacity(0.234700E+07);
setGroundTemperature(13.375);
setDesignFlowRate(0.0033);
setGroutThermalConductivity(0.692626);
setPipeThermalConductivity(0.391312);
setPipeOutDiameter(2.66667E-02);
setUTubeDistance(2.53977E-02);
setPipeThickness(2.41285E-03);
setMaximumLengthofSimulation(2);
setGFunctionReferenceRatio(0.0005);
addGFunction(-15.2996, -0.348322);
addGFunction(-14.201, 0.022208);
addGFunction(-13.2202, 0.412345);
addGFunction(-12.2086, 0.867498);
addGFunction(-11.1888, 1.357839);
addGFunction(-10.1816, 1.852024);
addGFunction(-9.1815, 2.345656);
addGFunction(-8.6809, 2.593958);
addGFunction(-8.5, 2.679);
addGFunction(-7.8, 3.023);
addGFunction(-7.2, 3.32);
addGFunction(-6.5, 3.681);
addGFunction(-5.9, 4.071);
addGFunction(-5.2, 4.828);
addGFunction(-4.5, 6.253);
addGFunction(-3.963, 7.894);
addGFunction(-3.27, 11.82);
addGFunction(-2.864, 15.117);
addGFunction(-2.577, 18.006);
addGFunction(-2.171, 22.887);
addGFunction(-1.884, 26.924);
addGFunction(-1.191, 38.004);
addGFunction(-0.497, 49.919);
addGFunction(-0.274, 53.407);
addGFunction(-0.051, 56.632);
addGFunction(0.196, 59.825);
addGFunction(0.419, 62.349);
addGFunction(0.642, 64.524);
addGFunction(0.873, 66.412);
addGFunction(1.112, 67.993);
addGFunction(1.335, 69.162);
addGFunction(1.679, 70.476);
addGFunction(2.028, 71.361);
addGFunction(2.275, 71.79);
addGFunction(3.003, 72.511);
}

IddObjectType GroundHeatExchangerVertical::iddObjectType() {
Expand Down Expand Up @@ -567,6 +652,10 @@ namespace model {
return getImpl<detail::GroundHeatExchangerVertical_Impl>()->isGFunctionReferenceRatioDefaulted();
}

ModelObject GroundHeatExchangerVertical::undisturbedGroundTemperatureModel() const {
return getImpl<detail::GroundHeatExchangerVertical_Impl>()->undisturbedGroundTemperatureModel();
}

bool GroundHeatExchangerVertical::setNumberofBoreHoles(int numberofBoreHoles) {
return getImpl<detail::GroundHeatExchangerVertical_Impl>()->setNumberofBoreHoles(numberofBoreHoles);
}
Expand Down Expand Up @@ -675,6 +764,10 @@ namespace model {
getImpl<detail::GroundHeatExchangerVertical_Impl>()->resetGFunctionReferenceRatio();
}

bool GroundHeatExchangerVertical::setUndisturbedGroundTemperatureModel(const ModelObject& undisturbedGroundTemperatureModel) {
return getImpl<detail::GroundHeatExchangerVertical_Impl>()->setUndisturbedGroundTemperatureModel(undisturbedGroundTemperatureModel);
}

/// @cond
GroundHeatExchangerVertical::GroundHeatExchangerVertical(std::shared_ptr<detail::GroundHeatExchangerVertical_Impl> impl)
: StraightComponent(std::move(impl)) {}
Expand Down
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