COOL-PHASE: Award winning innovative natural cooling system

COOL-PHASE is an award winning natural cooling and low energy ventilation system that creates a comfortable, fresh and healthy indoor environment that can significantly reduce the running costs of buildings. The system uses the concept of a ‘Thermal Battery’ to capture and store heat and cooling energy. The Thermal Batteries use the latent heat property of a Phase Change Material (PCM) to store large amounts of energy. This PCM changes phase at room temperature and is charged and discharged by passing air through its thermal batteries releasing the stored energy when it is required. The COOL-PHASE system monitors indoor and outdoor temperatures, internal CO2 levels and humidity and automatically ventilates the space via the means of an intelligently controlled Air Handling Unit.

Natural Cooling Brochure

COOL-PHASE Operation Modes

  1. Ventilation
  2. Outside Air Ventilation & Cooling
  3. Re-circulation & Cooling
  4. Heat Recovery

A.) Operation: Should the CO2 levels within the space rise above a preset level, the system will open the external damper and vary the fan speed until the desired CO2 levels are achieved, providing ventilation and direct air cooling proportional to the requirements of the space.

B.) External air: Is pulled directly in to the room passing through the filter assembly.

C.) Distribution: The air is distributed to the room via grilles or diffusers depending on model.

A.) Operation: This is used when the temperature differential between inside and outside air is insufficient to cool the space but the outside temperature is still lower than the temperature within the room.

B.) External air: Air is passed from outside over the Thermal Batteries to drop the temperature of the air and cool the room sufficiently.

C.) Distribution: The air is distributed to the room via grilles or diffusers depending on model.

A.) Operation: This strategy is used when the temperature outside is higher than inside.

B.) Re-circulation: Internal air is re-circulated from within the room and passed through the Thermal Batteries to provide cooling. A proportion of air is drawn from outside to maintain ventilation levels, a CO2 sensor and preset level determines the minimal amount of ventilation to be provided.

C.) Distribution: The air is distributed to the room via grilles or diffusers depending on model.

A.) Operation: In winter, the Cool-phase system works in reverse, trapping waste heat and using it to warm up cool fresh air entering the building. Whenever the internal temperature exceeds a preset level, or at the end of the day when the space is unoccupied, warm room air is passed through the heat exchanger, charging the Thermal Batteries.

B.) Ventilation: When ventilation is required, cool air from outside is passed through the heat exchanger, warming the air entering the space and reducing the load on the heating system.

C.) Distribution: The air is distributed to the room via grilles or diffusers depending on model.

COOL-PHASE System Types

  1. Suspended Ceiling
  2. Fascia
  3. Exposed Void

A.) Duct: An acoustic insulated duct connects the Cool-phase system to the outside air.

B.) Recirculation and filter module: A G4 filter is positioned to remove particles from the incoming external air and re-circulated air. Volume control dampers manage the proportions of fresh and re-circulated air to maintain the optimal internal environment. Pressure sensors to indicate when dirty filter media needs to be cleaned or replaced.

C.) AHU: The Air handling unit contains an energy efficient EC fan, intelligent control system and sensors. The control system monitors indoor air quality, temperatures both inside and outside, and humidity levels. The AHU controls the flow of air into the building, and how energy is released or stored by the Thermal Batteries.

D.) Thermal Battery: The Thermal Batteries form a modular heat exchanger. This allows heat to be transferred from the air to the Thermal Batteries, or vice versa. The Thermal Battery module has no moving parts and does not require any power, therefore, they are highly reliable, have a long life and require minimal maintenance.

E.) Ceiling tile diffusers: When the system is mounted above a false ceiling, ceiling tile diffusers are used at the end of the PCM module. Inlet grilles are provided at the point where air is re circulated.

F.) Exhaust grille: An outlet for air to leave the space is required. This can be through an internal exhaust grille, which allows air to escape through the rest of the building or through a second external weather louvre with volume control damper.

A.) Duct: An acoustic insulated duct connects the Cool-phase system to the outside air.

B.) Recirculation and filter module: A G4 filter is positioned to remove particles from the incoming external air and re-circulated air. Volume control dampers manage the proportions of fresh and re-circulated air to maintain the optimal internal environment. Pressure sensors to indicate when dirty filter media needs to be cleaned or replaced.

C.) AHU: The Air handling unit contains an energy efficient EC fan, intelligent control system and sensors. The control system monitors indoor air quality, temperatures both inside and outside, and humidity levels. The AHU controls the flow of air into the building, and how energy is released or stored by the Thermal Batteries.

D.) Thermal Battery: The Thermal Batteries form a modular heat exchanger. This allows heat to be transferred from the air to the Thermal Batteries, or vice versa. The Thermal Battery module has no moving parts and does not require any power, therefore, they are highly reliable, have a long life and require minimal maintenance.

E.) Fascia and diffusers: Air diffusers are built into the units to ensure air can circulate around the room evenly and prevent uncomfortable draughts.

F.) Exhaust grille: An outlet for air to leave the space is required. This can be through an internal exhaust grille, which allows air to escape through the rest of the building or through a second external weather louvre with volume control damper.

A.) Duct: An acoustic insulated duct connects the Cool-phase system to the outside air.

B.) Recirculation and filter module: A G4 filter is positioned to remove particles from the incoming external air and re-circulated air. Volume control dampers manage the

C.) AHU: The Air handling unit contains an energy efficient EC fan, intelligent control system and sensors. The control system monitors indoor air quality, temperatures both inside and outside, and humidity levels. The AHU controls the flow of air into the building, and how energy is released or stored by the Thermal Batteries.

D.) Thermal Battery: The Thermal Batteries form a modular heat exchanger. This allows heat to be transferred from the air to the Thermal Batteries, or vice versa. The Thermal Battery module has no moving parts and does not require any power, therefore, they are highly reliable, have a long life and require minimal maintenance.

E.) Fascia and diffusers: 4 way diffusers.

F.) Exhaust grille: An outlet for air to leave the space is required. This can be through an internal exhaust grille, which allows air to escape through the rest of the building or through a second external weather louvre with volume control damper.

Natural Cooling Resources

We provide you with variety of resources to find out more about our Natural Cooling offering. You can download all our natural cooling literature including brochures and product cards. Natural cooling images, renders and videos are also available from our gallery. Natural cooling CPD seminars are also available. Please choose the resource that most suits your needs from the following dropdown menu:

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