Calculation of ventilation rates

Based on the request supplemented with the floor plan of the kitchen technology and data on the power ratings of the cooking equipment, we will prepare a price offer with a proposal for the dimensions of the canopy or the canopy assembly, along with a proposal for the reduced ventilation rate for each canopy. In the case of replacing canopies with INDUCTair air-injection canopies with any other type of canopy, the proposed ventilation rates must be increased by at least 30% to maintain the efficiency of the extraction.

A double-sided (central) accumulation canopy with two accumulation spaces separated by a central underpressure chamber works as two independent canopies. It is recommended to calculate the extracted air volume for each side of the canopy separately and determine the total amount as double the higher value.

A single-sided (wall-mounted) accumulation canopy, where appliances with a predominant steam load are concentrated on one side and appliances with a predominant thermal load on the other, should ideally include the first neighboring appliance with a predominant steam load in the air supply calculation for appliances with a thermal load. Additional appliances should be calculated according to the steam load value.

When concentrating appliances that produce high thermal loads on one side of the canopy, while the other side is occupied by appliances with a low load (e.g., dispensing or heating units), it may happen that while one side of the canopy extracts air through grease filters at a lower temperature with a low concentration of pollutants, the exhaust elements on the other side may not be able to extract the large hot air flow. If it is not possible to limit the air flow through underutilized exhaust elements, the overall ventilation rate must be increased.