VENTILATION & AIR PURIFICATION

Heat recovery and energy options

Exchange energy between outdoor and exhaust air, coordinated with fans, coils and controls to reduce the energy required for air treatment.

Discuss your requirements
Heat recovery and energy options
Air handling equipment · Configuration reference

Design considerations

  • Rotary, plate, heat-pipe or run-around recovery selected for supply and exhaust conditions
  • Run-around coils can connect separate supply and exhaust units through a liquid circuit
  • Energy distribution designed around precooling, preheating and reheating duties
  • Recovery benefits assessed together with pressure losses, pump power and maintenance

Application areas

  • Outdoor-air laboratory systems
  • Animal facilities and life sciences
  • Industrial ventilation
  • Commercial supply and exhaust systems

Configuration options

  • Run-around heat recovery circuits
  • Rotary or plate heat exchangers
  • Coordinated precooling, preheating and reheating
  • Variable-speed or EC fan drives
  • Temperature, humidity, pressure and operating-state monitoring
  • Building or process control interfaces

FUNCTIONS & SYSTEM DESIGN

Understand the air streams before selecting recovery.

Heat recovery is evaluated at system level. Consider supply/exhaust locations, contaminant transfer, climate, schedules, added pressure drop and pump power together.

  1. 01

    Review both streams

    Check flow, air conditions, contaminants and separation distance.

  2. 02

    Choose the arrangement

    Compare run-around coils, plate exchangers and rotary options.

  3. 03

    Coordinate modes

    Plan precooling, preheating, reheating, bypass and frost protection.

  4. 04

    Evaluate net operation

    Balance recovered energy against added fan and pump consumption.

Run-around coils

Transfer heat through a liquid circuit between separate air streams; assess pump duty and freeze protection.

Plate exchangers

Review air-path layout, leakage risk, frosting and cleaning access.

Rotary recovery

Evaluate heat/moisture needs, carryover and leakage with suitable application-specific controls.

EXPLORE THE AIR HANDLING UNIT

Understand each functional section.

Select a function to explore its role and maintenance considerations.

FUNCTION / 01

Staged particle control

Prefilters help protect internal components. Subsequent filters are chosen for the supply-air requirement. Filter sealing, pressure drop and replacement access are considered together.

Maintenance focus: inspect seals and track filter pressure changes.

SELECTION CHECKLIST

A clear starting point for selection.

Share the following information so the team can develop a suitable configuration and confirm its performance documentation.

Discuss a configuration
Air and load
Design airflow, external static pressure, outdoor-air ratio and supply conditions.
Cooling and heating
Water or refrigerant conditions, available heating source and design duties.
Filtration and hygiene
Target filtration, cleaning procedures, material compatibility and test access.
Controls and operation
Hours, load variation, pressure/temperature/humidity sensing, alarms and control interfaces.
Delivery and maintenance
Section size, lifting route, connection directions, drainage and replacement space.

LET’S TALK ABOUT YOUR PROJECT

Start with your air requirements.

Share your airflow, temperature, humidity, target pollutants or cleanliness requirements. We will help assess suitable equipment and system configurations.