Optimizing commercial ventilation efficiency with rotary heat exchangers
In this case study we explore how Sovereign Air Movement optimized commercial ventilation efficiency using Heatex rotary heat exchangers. Faced with challenges such as high airflow demands, space constraints, and efficiency optimization, the company collaborated with Heatex to develop a cost-effective, energy-saving solution. The result was a highly efficient air handling unit that delivered substantial energy savings and a rapid return on investment.
Text & images by HEATEX
Sovereign Air Movement, a leading supplier of air handling units in the UK, specializes in designing and manufacturing efficient air handling solutions for commercial ventilation applications. Their dedicated team of design engineers utilizes advanced software to ensure that their air-handling equipment meets stringent environmental and engineering standards, such as the Energy-related Product( ErP) Directive and BS EN 1886:2007. By providing a tailored, energy-efficient solution, Sovereign Air Movement ensures that each customer receives a bespoke system that meets their precise needs. A critical component of these systems is the air-to-air heat exchanger, which leverages the temperature differential between supply and exhaust air to improve overall efficiency, recover waste energy, and significantly reduce energy consumption. To optimize their air handling units( AHUs), Sovereign Air Movement selected Heatex rotary heat exchangers due to their flexibility, efficiency, and ability to be customized to fit specific performance criteria. This decision was driven by
Heatex’ s ability to provide a wide range of design variables and options, ensuring an ideal fit for every AHU requirement.
General problems in commercial ventilation systems Commercial ventilation systems often face multiple challenges, including: 1. High pressure drop: Inefficiencies caused by internal component resistance reduce the overall energy savings.
2. Limited space availability: Compact yet accessible AHUs are essential for easy installation and maintenance.
3. Corrosive environments: High humidity levels or exposure to corrosive substances require durable and resistant components.
4. Large airflow demands: In extensive buildings, AHUs must accommodate significant airflow capacities efficiently.
Challenges faced by Sovereign Air Movement Sovereign Air Movement was tasked with designing a large AHU for an 80,000-square-foot facility. This required a sizable rotary heat exchanger capable of handling large airflow volumes while maintaining optimal efficiency. Key challenges included:
• The AHU needed to be delivered in modular sections for on-site assembly.
• The total unit dimensions were 7095 mm( L) x 5250 mm( H) x 4150 mm( W).
• The required rotor specifications included:
• High-efficiency matrix
• Low pressure drop
32 Heat Exchanger World April 2025 www. heat-exchanger-world. com