Condensation Heat Transfer in Horizontal Three Dimensional Two-Layer Two-Side Enhanced Tubes
Condensation heat transfer characteristics of near-azeotropic refrigerant R410A inside the horizontal copper and stainless steel EHT series tubes were measured. All three dimensional two-layer two-side enhanced tubes have deep-textured surface structures. Tests were conducted at an average saturation temperature of 45 °C; over a mass flux range of 100–450 kg/(m2·s); with an inlet quality of 0.8 and outlet quality of 0.2. Condensation heat transfer coefficient of the copper 1EHT tube is about 39–47% higher than that of a stainless steel one, showing a beneficial effect of high thermal conductivity material.
Full article can be found here: https://www.sciencedirect.com/science/article/abs/pii/S0017931018314996?via%3Dihub
Leave a Reply
Want to join the discussion?Feel free to contribute!