Diesel boilers for heating are the second most popular after gas boilers. They have a number of advantages, among which the possibility of full automation, which makes them much more popular than solid fuel, and cost-effective compared to electric boilers.
Diesel boilers require the obligatory arrangement of a separate room, as well as storage tanks for fuel, to ensure a long-term uninterrupted operation of the boiler. To properly choose the capacity of the tank, as well as to find out the amount of fuel needed to heat the house during the season, it is necessary to calculate the fuel of a diesel heating boiler.
- Area of heated rooms at home;
- Boiler thermal power;
- Number of days in the year when the boiler will work with maximum load( depends on the region);
- Boiler load in the remaining months.
Calculation of fuel for a heating boiler
The calculation is based on the area of the house. It is generally believed that for heating a building constructed with the implementation of all building codes, 1 kW of heat power per 10 m2 is needed.
Calculation of boiler heating power formula
The amount of diesel oil required for one hour of operation of the boiler can be approximately determined by multiplying the boiler output by a factor of 0.1.
The formula for calculating the hourly fuel consumption
The number of hours of operation of a fully loaded boiler can be determined by multiplying the number of cold days in a year by 24.
Formula for calculating the amount of operation of the boiler with full load
Similarly, the number of hours of operation of the boiler with partial load, for example, for heating water with a double-circuit heating boiler.
The total mass of fuel is calculated by multiplying the operating hours by the hour flow.
The figure shows the formula for calculating the required amount of fuel for the
season. If the calculation is to be done in liters, for example, to calculate the tank volume, the formula below should be used.
Calculation of the volume of the tank
Example calculation: house area of 90 m2, the number of days in the year when the boiler is running at full load - 120, another 60 days the boiler operates at half capacity. It is necessary to calculate the annual fuel consumption and the capacity of the tank for diesel fuel.
Calculation:
- Boiler output is equal to Pk = 90/10 = 9 kW.We choose a boiler with a rated output of 10 kW.
- Hourly fuel consumption mt = 10 · 0,1 = 1 kg / hour.
- Number of operating hours of the boiler with full load t1 = 120 · 24 = 4800 hours.
- The number of operating hours of the boiler is half of the power, based on the operating time of 12 hours per day: t2 = 60 · 12 = 360 hours.
- Total number of operating hours of the boiler t1 + t2 = 5160 hours.
- The total fuel consumption is Mt.= 5160 · 1 = 5160 kg = 5.16 t.
- Capacity of the tank Vt.obs.=( 5.16 · 1000) / 0.84 = 6142 liters = 6.14 m3.
There are some requirements for the diesel fuel tank. It should be corrosion-resistant, have stiffeners, a drain valve for removing sediment, a breathing valve, and a level gauge. Install a container for storing diesel fuel in a separate room in compliance with all fire safety requirements.
Capacity for diesel fuel
Correctly executed calculation - the guarantee of uninterrupted heat supply of the house. The calculated formulas are relevant for a well-insulated building with a ceiling height of not more than three meters. If your house is built according to the original design, has high ceilings or large panoramic windows, you need to make a more accurate calculation of the boiler's heating capacity.
In addition, read about the combined heating boilers here.
