1. Page 1 Igor C. Croiset GIZ Proklima Senior consultant Factors which influence the choice of alternatives Workshop on HFC management: Session 4: Challenges and opportunities in addressing high-GWP HFCs in the foam sector Bangkok 21 st April

2. Page 2 Foam performance sequence of requirements Foam performance depends in the following order on: 1.Machinery 2.Operator knowledge 3.Product and design 4.Chemicals The gap between theory and practical application can be substantial therefore selection needs to comprehend the above.

3. Page 3 Insulation requirements are determined according to the design requirements, foam performance and energy efficiency standards. Status quo Thickness insulation walls (mm)50 Thickness insulation roof (mm)75 Insulation materialPU Thermal conductivity (mW/m.K)22 Size cold room (LxWxH m)6x4x2.5 Cold room real temperature °C-10.00 Stored food AFish Stored food BBeer Stored food A required temp. °C-8 Stored food B required temp. °C0 Mass of stored food A4788 Mass of stored food B470.4 Cold room real temperature °C-10 Ambient temperature °C25 Daily stock renewal10% New stock temperature °C10.00 E.g take a cold room 6x4 m which has the purpose of preserving food The kind of food stored, temperature conditions and logistics together with the insulation properties determine the cooling power and overall energy efficiency

4. Page 4 Cold room – Impact design and good practices parameters The best insulation provides substantial improvement but for highest efficiency good practices need to go along!

5. Page 5 Extract main applications SectorApplicationDriversAlternatives Construction/ Industrial Sandwich panels Constructive soundness HC's, H 2 O Boards (PU,XPS,EPS) Cheap, easy application HC's Spray foamingEasy and cheap H 2 O Transport Refrigerated trucks, containers ATP-energy HC's, (HFO's) Commercial refr. Cold rooms, supermarket utilities Energy, consumer appeal HC's, H 2 O Domestic refr.Home applianceEnergy HC's, (HFO's)

6. Page 6 Selection? The selection of a foam system is dependant on the application together with the manufacturing method Secondly, whether you need additional insulation performance through high performance blowing agents and if it is worthwhile needs to be assessed? Increase of foam thickness to improve energy efficiency is a viable solution where possible? Insulation is a must, 50% of energy consumption is from private housing for heating/ cooling!

7. Page 7 Thank you for your attention! For further info feel free to contact: bernhard.siegele@giz.de igor.croiset@proklima.net