Constant buzz of the wood oven speaks or about its fault, or about violation of the rules of operation or constructive miscalculations. The intensive blare often signals that furnace gases are too quickly taken out by draft in chimney, without managing to give the heat to brickwork. Silent oven whistling and poshchelkivaniye, certainly, are the integral attribute of homeliness, but the deep-voices uterine sound and dverochny cannonade unambiguously prompt to the owner that it is time to be engaged in repair.
The classical heating furnace usually contains the whole system of dymooborot. Assignment, the allocated power and success of operation of heating design depends on their form, quantity and the heatperceiving ability.
In terms of acoustics, any empty capacity with firm walls can play role of the sound resonator. Physical object such - basis of design of wind instruments in which energy of air turns into energy of sound. The efficiency of this process is higher, the pipe or flute are more qualitative, that easier elicits musical sounds. The furnace space and dymooborota are very similar on the geometry on knee of trombones or snail of tubas. They are capable to strengthen repeatedly appearing oven sounds. To understand the cause of oven rumble, it is necessary to go deep into the theory of chemical processes and heat engineering a little.
Generally, the pipe is higher, the draft is stronger. The draft is affected by also weather patterns, roughness of flue, the provision of smoke valve, relative positioning of the fad of roof and top of pipe.
Combustion of fuel is reaction of oxidation of hydrocarbons. Oxygen necessary for this purpose has to in sufficient volume move in the burning center together with air. The air heated in fire chamber, volatiles emitted from fuel, moisture and soot make so-called furnace gases, with quite high temperature and low density. There is draft: new portions of close cold air seek to take the place of the hot and light gas rising up. If oxidation goes intensively, then the draft will amplify, at the same time even more oxygen will come to zone of burning, and process will grow as avalanche. Its force will be limited only to the flow capacity of doors and flues, speed of chemical reaction.
So, the excessive thrust boost turns the quiet smooth movement of gases into rough and turbulent. Near ledges and roughnesses of oven channels as on sharp edge of whistle there are whirlwinds. The fluctuating oven air makes the sound resounding in oven channels.
Buzz usually arises around toplivnik or the pass, at the same time the draft so amplifies that not easily happens to hold opened podduvalny door. Happens that bright sheaves of sparks from the soot which is burning down on the fly light the yard. When closing doors and work line racks the furnace ceases to hoot as the movement of furnace gases stops. The timbre and tonality of oven buzz depends on shape of oven cavities and the total thermal power. The tendency to reproduction of blares is defined by type and design of elements, look and condition of fuel. Too rapid movement of air in oven channels leads to sharp increase of fuel usage, excess of values of admissible temperatures of futerovochny laying, sparking of flues. It can reduce terms of between-repairs operation of the furnace, lead to the fire. The furnace hoots if thermal processes are too intensive and transient. You should not allow buzz. Silent and rhythmical crackling speaks about the correct operation of the device.