The capacity of air to hold water vapor varies depending on its dryness or humidity. Since dry air can hold more water vapor, and the evaporation of water into gas absorbs heat, dry air transitioning to a humid state can provide the necessary energy for air conditioning. This energy inherent in dry air is referred to as "dry air energy." "Dry air energy" is inexhaustible, clean, and pollution-free. SINO KING Indirect Evaporative Chiller utilizes dry air energy as the driving force, eliminating the need for electricity consumed by compressor-based chillers or gas/steam consumed by lithium bromide absorption chillers. With minimal energy consumption from fans and self-circulating water pumps, the unit achieves high energy efficiency.