Polyurethane foam insulation

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EXPERIMENTAL STUDY ON THE PERFORMANCE OF BUILDINGS INSULATED WITH SPRAY POLYURETHANE FOAM

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Polyurethane foam insulation

  1. 1. E XPERIMENTAL S TUDY O N T HE P ERFORMANCE O F B UILDINGS I NSULATED W ITH S PRAY P OLYURETHANE F OAM José Luis Müller, Antonio Subirats, Montserrat Gil Luisa F. Cabeza
  2. 2. G ENERAL I NFORMATION <ul><li>Independent Spanish Company founded in 1964 </li></ul><ul><li>Core Business : PU Business & Polyester polyol </li></ul><ul><li>Synthesia value’s & differentiation : </li></ul><ul><ul><li>strong R&D orientation, innovation as key driver </li></ul></ul><ul><ul><li>consolidated track of major technical breakthroughs </li></ul></ul><ul><ul><li>deep application understanding through up- and downstream integration: Polyester Polyols/ Prepolymers  PU Systems  Panel & lamination </li></ul></ul><ul><ul><li>quick and reliable service on a world wide basis for more than 30 years </li></ul></ul><ul><ul><li>open to develop taylor made products </li></ul></ul><ul><ul><li>world leader in rigid spray foam technology </li></ul></ul>
  3. 3. A GENDA <ul><li>Background </li></ul><ul><li>Program goals </li></ul><ul><li>Experiment design </li></ul><ul><li>Experiment setup </li></ul><ul><li>Experimental conditions </li></ul><ul><li>Results </li></ul><ul><li>Evaluation of results </li></ul><ul><li>Conclusions </li></ul>
  4. 4. B ACKGROUND <ul><li>Thermal insulation allows reduction of energy consumption </li></ul><ul><li>Differents materials in the market </li></ul><ul><li>Best lambda means best insulation </li></ul><ul><li>Insulation in buildings becomes critical </li></ul><ul><li>Only static test data available at single mean temperture- Is it sufficient to design structures? </li></ul><ul><li>Right, but is lambda a true indicator of building performance how much? </li></ul>
  5. 5. <ul><li>Compare and quantify in a full scale test the energy savings of insulation materials </li></ul><ul><li>Conduct testing on structures employing current Spanish construction practices </li></ul><ul><li>Study buildings over multiple season (2 years study) </li></ul><ul><li>Quantify economic saving under different weather conditions </li></ul><ul><li>Quantify thermal variance between building performance based upon insulations used </li></ul>G OALS
  6. 6. E XPERIMENT DESIGN <ul><li>Construction of 4 cubicles: </li></ul><ul><ul><ul><ul><li>Baseline (reference , no insulation material ) </li></ul></ul></ul></ul><ul><ul><ul><ul><li>SPF (PUR) </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Mineral Wool (MW) </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Extruded polystyrene (XPS) </li></ul></ul></ul></ul><ul><li>Data registered for each cubicle: </li></ul><ul><ul><ul><ul><li>Temperature and humidity </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Heat flux </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Electrical consumption.. </li></ul></ul></ul></ul><ul><li>Experiments performed: </li></ul><ul><ul><ul><ul><li>Free-floating temperature </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Controlled temperature </li></ul></ul></ul></ul><ul><li>Evaluation of results </li></ul>
  7. 7. E XPERIMENTAL SET-UP. B UILDING S OLUTION PLASTER INSULLATION MATERIAL PERFORATED BRICK WALL HOLLOW BRICK 5 cm. insulation material
  8. 8. E XPERIMENTAL SET-UP. B UILDING S OLUTION <ul><li>PERFORATED BRICK WALL 29 X 14 X 7,5 cm </li></ul><ul><li>CONCRETE PRECAST BEAMS + 5 cm CONCRETE SLAB </li></ul><ul><li>CEMENT MORTAR, “FLAT” ROOF 3% SLOPE </li></ul><ul><li>DOUBLE ASPHALTIC MEMBRANE </li></ul><ul><li>PLASTER PLASTERING </li></ul><ul><li>CEMENT MORTAR FISNISH </li></ul><ul><li>AIR CHAMBER </li></ul><ul><li>HOLLOW BRICK </li></ul><ul><li>PUR or MW or XPS </li></ul>
  9. 9. E XPERIMENTAL SET-UP. C ONSTRUCTION OF THE CUBICLES Pillars and walls PUR insulation Poliuretan ® Spray  = 0,028 W/(m.K) MW insulation  = 0,035 W/(m.K) XPS insulation  = 0,034 W/(m.K)
  10. 10. E XPERIMENTAL SET-UP. C ONSTRUCTION OF THE CUBICLES External finish with hollow bricks Finished cubicle
  11. 11. E XPERIMENTAL SET-UP. G EOGRAPHICAL AND WEATHER CONDITIONS <ul><li>Lleida NE Spain </li></ul><ul><li>41° 36′ 50″ N, 0° 37′ 32″ E </li></ul>
  12. 12. E XPERIMENTAL SET-UP . D ATA C OLLECTION Wall temperature (ºC) N,E,W,S roof and floor Heat flux Wall S(W/m 2 ) Internal air Humidity (%) Solar radiation (W/m 2 ) 24 hour/360 days remote data collection Electrical consumption (Wh)
  13. 13. E XPERIMENTAL SET-UP. T HERMOGRAPHIC I MAGES <ul><ul><li>Images with thermographic camera were taken to confirm the lack of thermal bridges: </li></ul></ul>Refer. cubicle. W. façade PU cubicle. S. façade PU cubicle. W. façade
  14. 14. E XPERIMENT CONDITIONS <ul><li>Climate versus time for cubicle </li></ul><ul><li>Electrical consump. accumulated versus time for cubicle </li></ul><ul><li>Climate versus time for each cubicle </li></ul>Graphic representation Climate, Electrical consumption Climate Data collected On. Set Point fixed Off Cooling / Heating system C ONTROLLED T EMPERATURE F REE F LOATING Experiment
  15. 15. E XPERIMENTS PERFORMED. F REE F LOATING T EMPERATURE - S UMMER Reference more sensitivity to T
  16. 16. E XPERIMENTS PERFORMED. F REE F LOATING T EMPERATURE - W INTER
  17. 17. E VALUATION OF RESULTS. C ONTROLLED T EMPERATURE - S UMMER Set Point 24ºC
  18. 18. E VALUATION OF RESULTS. C ONTROLLED T EMPERATURE - W INTER Set Point 24ºC
  19. 19. E VALUATION OF RESULTS. E NERGY C ONSUMPTION - S UMMER
  20. 20. E VALUATION OF RESULTS. E NERGY C ONSUMPTION - W INTER
  21. 21. E VALUATION OF RESULTS. E NERGY, CO 2 A ND C OST S AVINGS VS. R EF . - W INTER Weekly Accumulated Results 4 Months Winter Period Extrapolation PUR Cubicle 100m 2 House KWh 889 15,435 € 71 1,235 $ 101 1,754 CO 2 Kg. 577 10,017 * vs. SPF PUR +6% +10%
  22. 22. E VALUATION OF RESULTS. E NERGY, CO 2 A ND C OST S AVINGS VS. R EF . - S UMMER Weekly Accumulated Results 4 Months Summer Period Extrapolation +34% +21% PUR Cubicle 100m 2 House KWh 121 2,092 € 9.6 167 $ 14 237 CO 2 Kg. 78 1,358 * vs. SPF PUR
  23. 23. C ONCLUSIONS <ul><li>Thermal insulation is the key to achieving and energy efficiency target. </li></ul><ul><li>SPF gives the best overall energy performance of all the insulations tested. </li></ul><ul><li>Under winter conditions, the use of SPF generated and estimated 6% greater energy savings cost than mineral wool and a 10% greater energy savings cost than XPS. </li></ul>
  24. 24. C ONCLUSIONS- cont. <ul><li>Under summer conditions, the use of SPF generated and estimated 21% greater energy savings cost than mineral wool and a 34% greater energy savings cost than XPS. </li></ul><ul><li>Powerful experimental process which allows one to evaluate the behavior of insulation materials under full scale real life conditions. </li></ul>
  25. 25. A CKNOWLEDGMENTS Grateful thanks to Honeywell Fluorine Products for its support, especially to: Mary Bogdan Paul Sanders Karim Tarzi
  26. 26. For further info, please contact: [email_address] www.synte.es T HANK YOU VERY MUCH FOR YOUR ATTENTION!!

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