Effects of spray axis incident angle on heat transfer performance of rhombus-pitch shell-and-tube interior spray evaporator

Optimal nozzle spray cone angle for triangular-pitch shell-and-tube interior spray evaporator

“…Some of these rebounded droplets collide with the impinging droplets. As a result, a stagnation zone is formed on the heater surface [25], which further reduces the heat transfer coefficient. Given the case of a large spray cone angle (e.g., 60°), a large overlapping coverage zone is formed on the heated surface.…”

“…The results showed that the CHF increased slightly as the inclination angle was increased from 0 to 40°. Lin et al [25] showed that the heat transfer performance of a shell-and-tube spray evaporator system can be enhanced by setting the spray inclination angle to 60°. In order to prevent the dry-out phenomenon in a shell-and-tube spray evaporator, this study proposes a triangular-pitch shell-andtube spray evaporator featuring an interior spray technique.…”