Room type:
Kitchen Bathroom ToiletLength( cm):
Width( cm):
Ceiling height( cm):
In our time, probably, it is impossible to imagine a modern, equipped according to the rules of the latest trends in technological progress, a kitchen that did not havewould be a solid, powerful, functional and productive hood. It is worth saying that the old models were very far from such a description, and the noise from them came to neighboring rooms through the walls. But, given the rapid development of technology, it is no longer possible to say that the hoods offered by the manufacturers did not come several steps higher. But how to establish the quality of the hood, its performance and utility? After all, you can rarely be 100% sure of the good faith of the manufacturer. Calculating the hood for the kitchen is the best way out!
Correctly to make calculation - business not difficult, but important. Only having all the data on hand, you can be sure of stable operation and maximum efficiency of the device. With a good cooker hood, you will never have a smell or steam stagnant in your kitchen;Also, you will free yourself from such an unpleasant occupation as washing away walls from fatty plaque. The room will always have fresh air, cleanliness. In addition, you will perfectly save on detergents, cosmetic repairs, replacement of quickly worn out hoods.
How to calculate the drawing power?
Speaking about the classical( universal) formula for calculating the power of the hood, it is worth remembering that this is not the only option, but the simplest, and most importantly, it works. For calculation, you will need to measure the kitchen area and height, then multiply all the data and multiply the result by a factor of 10-12( the amount of fresh air that has entered the room per hour).If we take into account the norms of SES, air renewal in one hour should occur about 12 times.
If it is necessary to calculate the output of the hood, if the duct is already clogged and its cleaning is not planned, then the resulting number should be multiplied by two more. Buying a new hood, it is desirable to choose a model whose productivity will slightly exceed the number obtained.
Formulas
Calculation of the drawing force is made in cubic meters per hour. The mass of air that can be recycled by the extract is varied in the range of 160-1000 m3.
Drawing formulas for kitchen hoods:
1) With electric hob:
Q =( X x Y x Z) x 15 + 15% = m3 / h,
2) With gas hob:
Q =( X x Yx Z) x 20 + 15% = m3 / h ,
where
- X is the length of the kitchen;
- Y - width of the kitchen;
- Z - ceiling height;
- 15% - allowance for the resistance of the ventilation shaft.
Example of calculating the output power for a kitchen with dimensions X = 3 m, Y = 4 m, Z = 3 m and gas stove:
Q =( 3 x 4 x 3) x 20 + 15% = 720 + 0.15 * 720= 828 m3 / h
For an even easier calculation, use the hood power calculator.
