UM trocador de calor de fluxo cruzado com ambos os fluidos não misturados refers to a type of heat exchanger where two fluids (hot and cold) flow perpendicular (at 90°) to each other, and neither fluid mixes internally or with the other. This configuration is common in applications like air-to-air heat recovery or automotive radiators.
Key Features:
- Cross flow: The two fluids move at right angles to each other.
- Unmixed fluids: Both the hot and cold fluids are confined to their respective flow passages by solid walls or fins, preventing any mixing.
- Heat transfer: Occurs across the solid wall or surface separating the fluids.
Construction:
Typically includes:
Enclosed channels for the second fluid (e.g., water or refrigerant) to flow inside the tubes.
Tubes or finned surfaces where one fluid (e.g., air) flows across the tubes.
Common Applications:
- Radiators in cars
- Air-conditioning systems
- Industrial HVAC systems
- Heat recovery ventilators (HRVs)
Advantages:
- No contamination between fluids
- Simple maintenance and cleaning
- Good for gases and fluids that must remain separate