Emittance measurements for a thin liquid sheet flow

The emittance of a thin liquid sheet flow Dow Corning 705 oil was determined by two methods. From the analysis and results, several points can be made. It is evident that the Dow Corning 705 liquid sheet has a strong potential of functioning well as a radiator. The experimental emittance and the calculated emittance show high values averaging from 0.74 to 0.85. Because reflectance was neglected, the calculated emittance has an error of approximately 5%. Experimentally, it was difficult to determine if the temperature fluctuations were insignificant, but efforts were made to eliminate any fluctuations.