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“green boiler technologies”- related faq

  • Why use wood fuel? What are the benefits? 2021-04-23
    It's competitively priced: Wood fuel can compete on fuel price with the fossil fuel alternatives, although the costs of installing wood fuel systems can be higher than fossil fuel systems.
  • Why do we need to insist on maintaining a steam boiler regularly? 2020-06-12
    Regular inspections can identify and correct faults in the safety systems that are designed to prevent accidents. When it comes to regular maintenance, the cost of the inspections and repairs will be dramatically lower than the loss of time and profit from a broken boiler that requires replacing. Don’t let maintenance fall by the wayside. Schedule it at even intervals throughout the year.
  • How to deal with emergency low boiler water level? 2020-06-05
    Normally a boiler is provided with two independent sensors for emergency low water level burner cut-outs. So this would never happen. However, if it does, don't take any chances! Shut off the burners immediately!  Before you start raising the level in the boiler you have to find out if any part of the furnace walls has been overheated. If you raise the level over a glowing steel-wall then the boiler might produce more steam than the safety valves can handle and a nasty explosion would be the result.
  • Why the boiler load can not be increased to peak conditions? 2020-06-05
    Soot on the heating surfaces. Even a thin layer of soot will reduce the boiler efficiency. Not the right fuel for the burner. For instance, diesel oil to a rotary cup burner wouldn't do. Too low feed water temperature.
  • What is the major advantage of a condensing boiler? 2020-05-29
    The condensing boiler burns carbon-based fuel with oxygen in order to produce steam and carbon dioxide. The gases that escape this process (through a chimney) as exhaust are called flue gases. The major advantage is that they offer up to a 90% improvement in terms of efficiency when compared to standard gas boilers. Overall, condensing boilers are considered much more efficient in contrast to non-condensing gas boilers, a major consideration for any business running on a budget.
  • What is the proper way to clean a steam boiler? 2020-05-29
    There are many opinions on the best way to clean a steam boiler. One of the oldest ways is to dissolve a pound of tri-sodium phosphate (TSP) and a pound of caustic soda (lye) in water and pour it into the boiler. Let it cook for a few hours and then drain the boiler. If you can't buy TSP in your town, try a commercial soap called MEX. It works well and will not damage the rubber gaskets found in some boilers. However, before you clean any boiler, check the manufacturer's instructions for their recommendations. 
  • What are the causes of coal erosion in boiler 2020-05-22
    The causes of coal erosion as distinct from all the other types of erosion are many but from a theoretical point of view are simply high velocity particles impacting and rubbing along the surface of the tubes. The boiler designer minimises this by providing a volume in the furnace and a direction of travel of the coal such that it is burned before it can touch the tubes. This can be defeated by increasing the velocity reducing the combustibility or increasing the mass flow. All of these parameters occur if you reduce the calorific value of the fuel or overload the boiler. If you had no erosion before changing your fuel that is the cause. If you have never had design fuel you dont know if it would have eroded anyway. If it would the cause will be a different reason such as arodynamic flows and aiming of the burner or size of the tartget fireball centre. This is a serious problem and should be dealt with by an experienced expert.
  • How much coal is required to boil water from 60℃ to 90℃ in boiler 2020-05-22
    It could also say, how much heat is required to rais the water temperature from 60 ℃ to 90 ℃. To calculate heat required follow below steps Q= mCp dt Where m - water flow rate (kg/hr) Cp- specific heat of water dt- temperature differences ( 90–60) You will get heat required in kcal/ hr. dividing to Q by fuel GCV and system efficiency you will come to know how much fuel (either it is coal or oil) required to raise the temperature of water from 60 ℃ to 90℃.
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