House ventilation project, compiled by specialists, will ensure high-quality operation of the system and a healthy indoor climate.
Calculation of ventilation of a private house
House ventilation is calculated based on a whole range of parameters. The main task in carrying out calculations is to ensure optimal air exchange in all rooms of the house, depending on their purpose. Having determined the intensity of air exchange, you can proceed to the selection of suitable air ducts (diameter, section), fans.
To create a home ventilation project, you must take into account the following indicators:
- Intensity of air exchange;
- Room area;
- Supply air temperature;
- Appointment of premises;
- The number of inhabitants of the house.
Air exchange is an indicator that determines the amount of complete replacement of air in a room per unit of time. The values of this parameter are regulated by SNiP for different premises.
For living rooms, it is equal to one. In the course of calculating ventilation in a private house, all air exchange rates for the premises are summed up. The resulting figure is the volumetric performance of the ventilation system.
On average, productivity is in cubic meters per hour:
- For apartments from 100 to 800;
- For cottages from 1000 to 2000.
Designing ventilation in a private house
The ventilation project in a private house is made on the basis of the calculations made. The ventilation system of a private house includes air ducts, adapters, turns, splitters, distributors.
The first stage is the development of the air channel layout, the hum intensity, the air flow speed and the pressure in the system.
The last indicator is influenced by the fan power. Important parameters when calculating ventilation in a private house are the diameter of the ventilation ducts, the number of turns and transitions. The longer the ducts when calculating the ventilation of the house and the more transitions, the more powerful the fan must be and the higher the pressure in the system. If the pressure is too low, a number of rooms will suffer from poor ventilation (most often it is a kitchen or toilet).
The air flow rate in the system should be from 12 to 16 meters per second, depending on this, the diameter of the ventilation ducts is selected. The main task when creating a ventilation project in a private house is the balance between the diameter of the ventilation ducts, the power of the equipment and the level of hum.
An important parameter is the power of the heater.
It depends on both the outdoor temperature and the required indoor temperature. As a rule, air heaters with a capacity of 1 to 5 kilowatts are taken for private houses.
