2. POLYMERIC MATERIALS USED AS HEAT EXCHANGERS PVDF NYLON 6 PTFE PEEK

3. Potential Advantages of Polymer Heat Exchangers Resistance to Corrosion Resistance to Fouling Light Weight Cost Benefits

4. Potential Applications of Polymer Heat Exchangers Heating and Cooling in Electroplating and Anodizing Processes (Currently tubular PTFE exchangers are used) Heating and Cooling Applications in Sulphuric Acid Plants Bromine Recovery systems Acid Dilution systems for the battery industry Secondary heat exchanger in Condensing gas boilers Flue gas heat recovery systems Aviation and Automobile Industry Air conditioning systems

5. Convective Heat Transfer & Pressure Drop Characteristics (Air / Air, Water / Water, Air / Water) Effect of Angle of Cross Corrugation Effect of Pr Number Condensation in the presence of non- condensibles Mass transfer studies Flow visualisation studies Continued

6. Cross Corrugated Film

10. Exchanger Matrix

17. J h 30 0 / J h 90 0 = 1.85 J h 60 0 / J h 90 0 = 1.48

18. What about Thermal Resistance? Liquid5000 W/m 2 KResistance0.0002m 2 K/W Gas400 W/m 2 kResistance0.0025 m 2 K/W Film t=53. 10 -6 m, k = 0.2 W/m KResistance0.000265 m 2 K/W Film / Liquid 1.32 Film / Gas 0.106 (If t=0.9mm) Film/Gas =1.8 Film / Liquid (2500 W/ m 2 K) 0.66