Thermal and physical properties of some organic liquids: Their condensation patterns on teflon coated mild steel substrates

Abstract

<span style="font-size:11.0pt;line-height:115%; font-family:" calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-fareast-font-family:="" "dejavu="" sans";mso-hansi-theme-font:minor-latin;mso-bidi-font-family:mangal;="" mso-bidi-theme-font:minor-bidi;color:#00000a;mso-ansi-language:en-us;="" mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">An analysis of the thermal and physical properties of organic vapours and steam condensing on tefton coated mild steel (m.s.) substrate in different patterns has been carried out. Photographs of the pattern of vapours (other than film wise) have been presented. The properties of thirty three vapours experimented for their pattern of condensation is tabulated. Eventhough for steam, the coefficients are higher than for organic vapours, for both filmwise and dropwise condensation (d.c.), due to its advantageous physicalproperties and the extent of augmentation in d.c. is also higher, it was observed from the experiments that there is advantageous enhancement for organic vapours also inspite of their physical properties being at disadvantageous levels and their characteristic changes with other parameters like temperature. These characteristics wherever possible are discussed.</span>