Design and development of novel absorber coating for solar collector applications

摘要: Global average power consumption is 17 terawatts (10[to the of]12W) and rate of solar energy received at Earth's surface more than 120 petawatts of]15W). Therefore, earth receives as much in one day used by entire world 20 years. Solar thermal collectors use absorber coatings layers to convert incident radiation, via photothermal conversion, into useful i.e. heat. Re-radiation this heat minimised using a selective surface. Patterning non-thermal curing epoxy resins, micron scale, electrohydrodynamic instability (EHD) patterning, could mitigate some challenges presented other materials methods produce these surfaces such cost. was objective study. As contribution field method process shape thin, resin film, developed equipment are presented. Epoxy pillared surfaces, with pillar spcings from 3-200 [micrometres], were manufactured on silicon substrates 30, 61 or 162 V electrode gaps ranging 3- 40 [micrometres]. A way replicating fabricated moulding also described here. The patterned replicated onto various tested for their interaction infrared (IR) radiation. In order explore range versatility theis technique fabricating functional structures sustrates tissue culture. To gain better understanding hence control over patterning an resin, theories numerical models examined. Comparisons between predictions results given theory our practical discussed since it found that there disagreement when lower electric fields being used. studies IR culture substrates, assessed commented on. Lastly improvements be made future work undertaken suggested.