Equipment: BXB600-595-4-H Air-to-Air Plate Heat Exchanger
Working Conditions: 4500 m³/h airflow per unit; exhaust temperature 50–60°C; contains ammonia, moisture, and corrosive components
Application Background
During livestock manure fermentation, large volumes of warm and humid exhaust air containing ammonia are continuously discharged. A significant amount of heat is lost during this process. By using an air-to-air heat recovery exchanger to preheat fresh air, the system can reduce energy consumption for heating, improve ventilation efficiency, and decrease visible white plume from exhaust discharge.
Heat Exchanger Selection
The BXB600-595-4-H is a cross-flow aluminum plate heat exchanger, suitable for fermentation exhaust, composting exhaust, and other moderate-corrosive gas conditions.
• High efficiency: Cross-flow structure with strong temperature difference driving force; sensible heat recovery efficiency can reach 50–65%.
• Low pressure drop: Optimized flow channels, well-matched with the 4500 m³/h airflow requirement.
• Corrosion resistance: Optional surface passivation or epoxy coating for enhanced protection against ammonia and acidic condensate.
• Zero energy consumption: No water or steam required; heat recovery is achieved solely through the temperature difference between exhaust and fresh air.
Functional Benefits and Energy Savings
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Fresh Air Preheating
Exhaust air at 50–60°C can effectively preheat cold fresh air during winter, reducing the heating load for livestock houses, composting systems, and fermentation equipment. -
Reduced Exhaust Humidity and White Plume
After heat extraction, the exhaust temperature drops, reducing visible white vapor during outdoor discharge and improving environmental perception. -
Lower Corrosion Risks
Exhaust and fresh air remain completely separated. Tail gas channels can be coated for extended service life when handling corrosive components. -
Energy Savings
Compared with electric heaters or steam heating, the system can reduce energy consumption by 20–60%, depending on temperature conditions and fresh air load.
Installation & Maintenance Notes
• Install filters on the exhaust side to block dust and particulates.
• Ensure proper condensate drainage to prevent corrosion from acidic liquids.
• Select fans with sufficient static pressure to maintain airflow under varying humidity.
• Optional bypass system to stabilize fresh-air temperature during exhaust fluctuations.