Analysis of indirect evaporative cooling efficiency

Focusing on the indirect evaporative cooling efficiency based on commonly used wet-bulb temperature, suggests adopting indirect evaporative cooling efficiency based on dew-point temperature, provides a calculation formula for the total indirect evaporative cooling efficiency of multistage serial connection, defines the relative change rate of dry-wet bulb temperature and deduces a relational expression of indirect evaporative cooling efficiency between measurement benchmarks based on wet-bulb temperature and dew-point temperature.