Model validation and fault detection for very energy-efficient buildings using building information models and monitoring

Transcription

1 Model validation and fault detection for very energy-efficient buildings using building information models and monitoring Ando Andriamamonjy Supervisors: Dirk Saelens, Ralf Klein

2 Context Research questions Research questions development 2

3 Context: Energy use in buildings Services 13.3 Agriculture 2.2 Other 0.6 Transport 33.2 Households 24.8 Industry 25.9 Transport Industry Households Services Agriculture and forestry Other Figure 1: Final energy use, EU-28, 2014 (source Eurostat) 3

4 Context: Building Energy Simulation (BES) IMPROVE BUILDING DESIGN IMPROVE BUILDING OPERATION Early design Design development/documentation/construction Operation Building life cycle Simplified Detailed BES BES Envelope HVAC Control BES Narrow down the design alternatives BES during the building life cycle Parametric analysis, Building certification, simulation Fault Detection and Diagnosis: identify defects equipment in the AHU or faulty building operation

5 Context: Building Energy Simulation (BES) Time consuming and error prone (data gathering) BES model implementation. Limitations of the current BES tools limiting their use throughout the entire building life cycle. Model calibration and uncertainties. Link between the Building Monitoring System (BMS) and the BES model during operation. 5

6 Research questions BES Model Monitoring system 1- (Semi-) Automatize BES model implementation 2- Ensure the validity of the BES model generated 3- BIM based methodology to link BES and BMS BIM (IFC4) 4- Implement a model based FDD during operation Model based FDD 6

7 1- (Semi-) Automated BES model implementation Early design Design development/documentation/construction Simplified Simplified Arch HVAC Arch HVAC Control BIM during the building life cycle Existing Methodologies/tools Missing and developed Simplified Detailed BES BES Envelope HVAC Control BES FDD Simplified model for early design EnergyPlus, DOE-2, Simplified model for FDD or MPC BES complexity during building life cycle 7

8 1- (Semi-) Automated BES model implementation 1- Ensure data availability GUIDELINES Simplified Arch Simplified HVAC Arch HVAC Control MEP BIM 2- Ensure data export into IFC IDM/MVD MVD (Model View Definition) 3- Convert IFC into Modelica based BES IFC4 Ifc2Modelica (PYTHON based tool developed) Simplified BES Detailed BES Envelope HVAC Control BES FDD Modelica (open, flexible, object oriented, availability of BES libraries) 8

9 1- (Semi-) Automated BES model implementation BESTEST CASES Karlsruhe Institute of Technology (KIT), Phantasy Office Building Twin house, Holzkichen, Germany 9 KU Leuven campus Gent building

10 2- validity of the BES model generated Define the simulation related information that need to be inserted (not supposed to be within the BIM, e.g. type of air model) Ensure the accuracy of the BIM data.(bim based calibration) BIM Calibrated BIM Ifc2Modelica BES model + simulation data FDD Guidelines for the BIM designer Sensitivity analysis on non geometrical parameters Screening (Morris) Ranking (Sobol) Write back the optimal value within IFC MPC Empirical data Optimization (Bayesian calibration) 10

11 2- validity of the BES model generated Well defined case as a test bed BESTEST CASES Twin house, Holzkichen, Germany Application 11 KU Leuven campus Gent building

12 3- BIM based methodology to link BES and BMS Need of link between the BMS and the BES for calibration and during the operational phase BIM Sensor id Sensor id System integrator (responsible of the BMS implementation) DATABASE BIM Based data request BIM based generated Model Building Monitoring system (BMS) Data formatting Calibration/FDD 12

13 3- BIM based methodology to link BES and BMS BIM Sensor entity identifier Retrieve sensor related entities (IfcSensor) Configuration file Database connector Perform SQL queries Outside boundaries data Others PLC based Building Monitoring system (BMS) PLC to database adapter SQL database Convert into weather data format (e.g. TMY) Convert into data format readable from Modelica BES 13

14 4- Implement a model based FDD during operation Envelop Model Window open Shadings Control error Damper stuck Generated BES Model AHU model Control model Near real time Residual analysis Envelop index measurement (Temperature) Residual analysis Empirical data AHU measurements (Energy use, Supply air temperature) Control model (control signal) Residual analysis 14

15 Temperature [k] 4- Implement a model based FDD during operation Model Measurement Time [] Open window from 19 to 23 September 2016 in E120 15

16 Model validation and fault detection for very energy-efficient buildings using building information models and monitoring Ando Andriamamonjy Supervisors: Dirk Saelens, Ralf Klein