The calculation of gas consumption for heating a house of 100 m2 in cubic meters is the task of primary school in proportion. It is enough to know how much fuel is needed to heat a unit of the area of an individual house.
Two more thermal power factors will be useful: one for the main gas, the second for a liquefied mixture of butane and propane.
Why choose gas
В прошлом веке экономически выгодным видом fuel chose firewood. With the development of mechanics and technology, the palm has passed to coal. The discovery of natural combustible gas deposits pressed coal, and there were fewer harmful emissions into the atmosphere.
Пришла эпоха развития зелёной энергетики и exploitation of renewable energy sources in the form of solar radiation and wind. But not everywhere the number of windy days is enough to generate and accumulate the electricity needed to heat the water boiler. Solar panels are still expensive. Man adheres to a conservative and inexpensive way to heat a dwelling - natural gas.
Pollutant | Emissions from burning as much as possible | |
Coal, g / t | Natural gas, g / m3 | |
Ash | % of the working mass of the fuel | not |
Carbon dioxide CO2 | 3000 | 2000 |
NOx in terms of NO2 | 14 | 11 |
Sulfur oxides in terms of SO2 | 0,19 | - |
Benzapiren | 0,014 | 0,001 |
As can be seen from the table, the content of substances hazardous to human health is lower for gas than for coal. Therefore, natural blue fuel is used to heat the dwelling.
General parameters of influence on the volume of fuel burned
The amount of fuel for warming housing is consideredeither in liters or cubic meters. If gas is supplied to a dwelling house through a centralized gas supply system, then accounting is conducted in cubic meters.
When connecting a house to an autonomous heating system, natural liquefied gas in cylinders is used and records are kept in liters.
With the same dwelling area, the fuel consumption for heating depends on several parameters:
- year of construction;
- number of floors;
- construction materials;
- design features of window and door openings;
- type of heating unit.
Walls, roof, doors and windows are sources of lossesheat No powerful heating boiler will not save if the doors and windows do not close tightly, if there are cracks in the wall joints and ceiling. When installing a gas boiler in the house, it is necessary to carry out measures to restore thermal insulation.
The calculation of the amount of gas for heating housing
We will calculate for the climatic conditions of the SouthUral. According to the rules, the heating interval for housing is set from September 15 to May 15. The rationality of the norm is confirmed by the fact - in the Urals in the first half of May, more, and in the second half of September, snow is already falling. The duration of the heating period is 242 days. The beginning and the end of heating the consumer will adjust independently.
The flow of heat in the living room takes 24 hours. Total gas to be burned for 5808 hours. This is the maximum time required for the operation of gas equipment.
Calculate the flow of gas per hour. Let be:
0.92 - maximum efficiency of the heating unit;
H - the volume of gas consumption for heating the house 100 m2 in m3;
T - power for heating 100 m2, kilowatt;
C - the lowest calorific value of the main fuel is 10.175 kW / m3.
Then H = T / (C * 0.92) = 0.5341 m3/ h.
Consequently, the gas consumption for heating a house of 100 m2 in cubic meters will be 3102 m.3.
Autonomous heating with a liquefied gas mixture
If natural gas is not connected to the building byline, the boiler is connected to the cylinder or gas tank with a mixture of propane-butane. Accounting for liquefied gas are in kilograms. Therefore, the “C” value from the calculation formula is equal to 12.8 kW / kg.
H = 5 / (12.8 * 0.92) = 0.4246 kg / h of the liquefied mixture.
Now it remains to calculate the gas consumption for heating a house of 100 m2 in liters.
Volume L = 0.4246 * 5808 = 2466 liters.
How many refilled cylinders will be needed for one heating season? In one cylinder fits 42 liters of fuel. It will take all
2466/42 = 59 cylinders.
Question price
In the Chelyabinsk region cost 1 cubic meter3 natural gas is equal to 6.15 rubles / m3.
The liquefied mixture in cylinders, without delivery, depending on the area is 16.82 - 19.26 rubles per kilogram.
The amount of fuel for heating an individual house is reduced by any of the three activities, or the whole complex:
- one.A simple measure is the installation of a thermal curtain in the entrance block. Such models do double work. In winter, the device cuts off cold air from the street, in summer the unit is turned on for cooling, at the same time preventing the appearance of insects in rooms. Heat curtains are equipped with overheating protection and a remote control.
- Costly, but not difficult to perform - warmfloors that require heating water at half the temperature of radiator heating. Water floors are inexpensive, and they have a plus: they heat, but do not overdry, the air. However, remember that, according to the rules, water floors are installed only in a private house. In apartment buildings, the option of cable or film flooring is considered.
- Even in a house of 100 square meters. m justify the installation of automatic control of heat depending on the outdoor temperature and the presence of people in the house.
Curtain Tips
Modern gas heating boilers are operated for both types of fuel after the burner has been adjusted by a gas-maker.
If the budget permits, when using liquefied gas, it is better to install not a pair of individual cylinders, but gas valves for group installations with automatic control.
The formula given in the article is used to calculate the cost of gas fuel for a house of any size. Carefully apply the coefficients for the main gas and for the liquefied mixture of propane and butane.
