Kitchen Air Cleaning Technology
High-Efficiency Unit with Advanced Filtration Based on Electrostatic Technology
To effectively remove grease particles suspended in the cooking air of commercial kitchens, Cadexair has developed a truly eco-friendly advanced filtration solution. Our electrostatic or ESP technology is based on many years of experience, innovation and research in industrial kitchen ventilation design and engineering. With the help of our maintenance and cleaning department, we found a way to filter more than 95% of the air discharged from kitchens, even those with the highest cooking loads in the country. Equipped with a digital HV power supply and fire protection system, the KAC unit meets market demand for a robust, efficient solution with reusable filters. Easy to maintain and highly automated, it provides users with peace of mind while meeting the highest air quality standards of municipalities around the world.
As air passes through the integrated ionizer/collector cell, grease particles are negatively charged by a flood of electrons produced in the charging process. Negative ions are attracted to grounded sensors in the diffusion process. As a result, grease particles are drawn out of the air flow and deposited on the walls of the cylinders located in the honeycomb-structure filter unit.
There is practically no mechanical force in action between the filter cell and the air flow, resulting in a very low pressure drop through the filters. By the same token, there is no need for higher fan pressure for extraction to work. The electrical energy of the KAC unit affects only grease particles, making it very energy-efficient.
Operating Principle
Honeycomb-Structure Filter Cell
The filter cell consists of honeycomb-structured cylindrical collectors arranged in parallel with ionizing needles inside. This ensures the uniformity of the electrostatic intensity generated inside the filter cells. This type of filter has the highest level of filtration efficiency on the market.
Perforated Pre-Filter
This is for removing large particles and grease droplets and to help ensure the uniform distribution of air throughout the filter cells. It creates a uniform load in each collector to optimize efficiency over the longest possible time, in order to reduce cleaning and maintenance costs.
Digital Power Supply
This offers a perfect combination of high power and power conversion efficiency. It’s a complete solution with safety functions such as gradual startup, constant output current, electric arc and automatic repositioning, as well as enhanced protection against repeated electric arcs, HV open circuit, short circuit, overload, overheating, etc. It achieves all this while ensuring an optimal filtration efficiency of more than 95% regardless of fluctuations in system variables, the type of food being cooked, the volume of exhaust air, electrical network instability, filter cell cleanliness, etc.
The cleanliness of the filter cells is monitored automatically and the optimal electric currents are determined in real time to adapt to constantly changing conditions and avoid total breakdown when the filter cells become dirty and thus reduce the cleaning frequency. The operating status of the filter may be verified on the front of the unit or on the Cadexair CC-200 control unit, a powerful gateway based on instantaneous sampling and the remote communication capabilities of the digital power supply.
Model and Installation
Smoke Elimination Efficiency Graph
Static Pressure Graph
Activated Charcoal Option
When installed downstream of Cadexair’s electrostatic unit, the charcoal filter absorbs odours.
V-Shaped Charcoal Filter
Honeycomb Activated Charcoal
Absorbing material:
High-quality charcoal pellets
Support:
Perforated grid containing cylindrical honeycomb-cell compartments
Advantages:
High adsorption capabilities and suitable aerodynamic performance. Can be used for general adsorption of malodorous gases from exhaust emissions, such as toluene, xylene, benzenes, phenol, lipids, alcohols, aldehydes, etc.
V-shaped charcoal panel:
Provides a larger receiving surface and facilitates installation and maintenance.
Examples of Possible Installations
Wall outlet
Indoor installation
Roof outlet
Outside installation
Roof outlet
Indoor installation
