Evaluation of Thermal Properties for BIPV Experimental Results of U-value and SHGC for Crystalline Silicone PV Module

Transcription

1 Evaluation of Thermal Properties for BIPV Experimental Results of U-value and SHGC for Crystalline Silicone PV Module 27 Oct Author : Dr. Hisashi ISHII Technology Research Institute, LIXIL Corporation. Tokyo Japan Copyright LIXIL Group Corporation. All rights reserved.

2 Contents Background Energy consumption on commercial buildings Role of BIPV Experiment of thermal performance Conclusion 1

3 1. Road map to ZEB Necessary to make the zero energy building by

4 Supply Renewable Energy 2. Definition of ZEB in Japan All New Public Buildings are aiming to ZEB in 2020 Net ZEB Energy Conservation Energy Zero Balance Energy Zero Balance 50% Reduce Energy Consumption Source : METI and MLIT : Report Road map to ZEB, Dec Energy Zero Balance 3

5 3. Energy consumption of Commercial Building We know how to reduce energy consumption on Facade 4

6 4. Thermal insulation Thermal insulation is important not only glass but also frame. Conventional Curtain wall Four Sided SSG (frameless) 5

7 4. Thermal insulation Four Sided SSG enable to improve U-value by 20 % to 10% Reference:H.ISHII: Study on application of Four Sided Structural Sealant Glazing Systems in Japan ASTM international Selected Technical Paper

8 5. Solar Shading Solar G 値に寄与し内部負荷低減を行う Shading (Louver and Blind) enable to improve G-value Reference:H.ISHII, Glass façade System, AIJ symposium Nov

9 6. Air flow system (Const. air volume control flap) Air Flow Ventilating System enable to improve Air conditioning load 8

10 7. Movable Variable Façade System Solar Shading enable to improve G-value, U-value and son on Reference: H.ISHII,et al, Evaluating the Thermal performance of a Movable Variable Facade System Using Survey Methods and Calculations, Jun 2014 ICBEST Aachen Germany Collaborate : The University of Tokyo 9

11 7. Movable Variable Façade System This louver surface indicated 58 degree C in the winter morning Can provides some illuminance, but closed completely (ambient lighting) Can be relieve glare from sunlight without blinds Reference: H.ISHII,et al, Evaluating the Thermal performance of a Movable Variable Facade System Using Survey Methods and Calculations, Jun 2014 ICBEST Aachen Germany Collaborate : The University of Tokyo 10

12 8. ZET : Zero Energy Toilet Lighting System ZET Lighting System enable to meet energy consumption Reference: H.ISHII,et al, Zero Energy Toilet Lighting System, AIJ Aug Corroborate : Tohoku University 11

13 8. ZET : Zero Energy Toilet Lighting System ZET Lighting System enable to meet energy consumption Developed LED is 0.15W with Purkinje effect (brightness improve) Reference: H.ISHII,et al, Zero Energy Toilet Lighting System, AIJ Aug Corroborate : Tohoku University 12

14 9. Cause and Action We ve many solution of how to reduce energy consumption. But, BIPV has barrier of penetration into construction market. Why BIPV minor in Japan? (or world?) 1. Cost Issue (finance) 2. Lack of international standards We (Task15) are working this issue. 3. Thermal effect is indefinite. 4. Reliability 5. etc. Action (Evaluate) Clarify : Thermal performance (U-value and G-value) 13

15 10. Focus on BIPV Source : H.ISHII et.al, What is BIPV (in Japanese), Solar Design Consortium, July

16 11. Role of BIPV First Power Generation and Façade Design Next Shading and Façade Design Final Improvement of SHGC Reduce Cooling Load Source : H.ISHII et.al, What is BIPV (in Japanese), Solar Design Consortium, July

17 11. Role of BIPV Reference H.ISHII et.al : Evaluation of Thermal Properties for BIPV in Glass Façade(in Japanese), AIJ, Aug

18 12.Experimental Parameter of U-value Reference H.ISHII et.al : Evaluation of Thermal Properties for BIPV in Glass Façade(in Japanese), AIJ, Aug

19 13.Outline of specimens for U-value Reference H.ISHII et.al : Evaluation of Thermal Properties for BIPV in Glass Façade(in Japanese), AIJ, Aug

20 14. Experimental equipment Reference H.ISHII et.al : Evaluation of Thermal Properties for BIPV in Glass Façade(in Japanese), AIJ, Aug

21 14. Experimental equipment Reference H.ISHII et.al : Evaluation of Thermal Properties for BIPV in Glass Façade(in Japanese), AIJ, Aug

22 15. Experimental parameter of G-value (SHGC) Reference H.ISHII et.al : Evaluation of Thermal Properties for BIPV in Glass Façade(in Japanese), AIJ, Aug

23 16. Outline of specimens for G-value Reference H.ISHII et.al : Evaluation of Thermal Properties for BIPV in Glass Façade(in Japanese), AIJ, Aug

24 17. Experimental Equipment's Reference H.ISHII et.al : Evaluation of Thermal Properties for BIPV in Glass Façade(in Japanese), AIJ, Aug

25 18. Experimental Result of U-value Reference H.ISHII et.al : Evaluation of Thermal Properties for BIPV in Glass Façade(in Japanese), AIJ, Aug

26 19. Experimental Result of G-value Reference H.ISHII et.al : Evaluation of Thermal Properties for BIPV in Glass Façade(in Japanese), AIJ, Aug

27 20. Conclusion U-value of PV Module is similar the Conventional Float Glass. U-value of PV Module is independent of window transmittance ratio and distance between cells. SHGC of PV module is 1.6 to 2.9 times better than the Conventional Float Glass (benchmark). SHGC of PV Module has been improved by shading effect and photoelectric effect. Future Task This year is going to conduct an experimental Low-E coated IGU. Acknowledgement Funding from the METI is gratefully acknowledged. 26

28 Thank you for your attention! HAVE YOU ANY QUESTION? 27