Experimental Study on Phase Change Materials in Scaled Models of Dutch Dwellings F. Muthing

1. Experimental Study on Phase Change Materials in Scaled Models of Dutch DwellingsF. Muthing A.G. EntropH.J.H. BrouwersCMS Meeting 2009June 13th 2009, Enschede

2. Contents • Introduction • Energy Performance Coefficient • Phase Change Materials • Research Objectives • Field Experiment and Test Boxes • Research Framework • Questions Introduction - PCM – Field experiment – Research Methodology - Questions

3. Introduction (1) • Bc. Frank Muthing • Bachelor theses at Saxion Hogeschool (2006) • Mechanical Engineering with specialization Sustainable Energy Technology Introduction - PCM – Field experiment – Research Methodology - Questions

4. Introduction (2) • Energy efficiency and energy saving are ‘hot’ • Solar Energy and Heat Buffering • Continued field experiment focusing on energy saving with Phase Change Materials (PCMs) • Master theses project Introduction - PCM – Field experiment – Research Methodology - Questions

5. Energy Performance Coefficient (EPC) Energy Performance Coefficient will be lowered to 0.4 in 2015 Introduction - PCM – Field experiment – Research Methodology - Questions

6. Phase Change Materials (PCM) (1) Classification Organic PCMs: costly but better physical properties Introduction - PCM – Field experiment – Research Methodology - Questions

7. Phase Change Materials (PCM) (2) PCM’s offer the possibility to accumulate heat provided (for example) by solar irradiation. Introduction - PCM – Field experiment – Research Methodology - Questions

8. Research question “What is the influence of using Phase Change Materials in the Dutch built environment and what is the influence of PCM on the Energy Performance Coefficient (EPC) of a standardized Dutch dwelling?” Introduction - PCM – Field experiment – Research Methodology - Questions

9. Modeling • Visualize energy flows within the simulation model; • Use a software package that is able to calculate with differential equations from heat / mass balances, combined with turbulent flow; • Verify the results of the model with the experimental data. Introduction - PCM – Field experiment – Research Methodology - Questions 9

10. Test boxes at the test site Introduction - PCM – Field experiment –Research Methodology - Questions

11. Dimensions of the test boxes Introduction - PCM – Field experiment –Research Methodology - Questions

12. Four different test boxes Setup is being constructed to conduct outdoor testing. Introduction - PCM – Field experiment –Research Methodology - Questions

13. Research Methodology (1) Steps to come to the research objectives: • Finalizing research facility; • Finding proper software package for modeling (COMSOL, ANSYS or TRNSYS); • Specifying boundary conditions; • Visually stating the model in relation to the research facility; Introduction - PCM – Field experiment – Research Methodology - Questions

14. Research Methodology (2) 5. The results from the simulation model will be verified by using empirical data; 6. Integrate conclusions on the influence of PCM within the Dutch standards to compute the EPC. Introduction - PCM – Field experiment – Research Methodology - Questions

15. Preliminary results Introduction - PCM – Field experiment – Research Methodology - Questions

16. Expectations • Empirical results show that the EPC decreases at least 0.03; • Difficulties with modelling; • End of this research project will be approximately December 2009 Introduction - PCM – Field experiment – Research Methodology - Questions

17. Questions Thank you for your attention! Introduction - PCM – Field experiment –Research Methodology - Questions