WNS series horizontal internal combustion boiler is a boiler shell type 3 passes wetback oil/gas fired boiler.
DZL series package boilers are horizontal three-pass water & fire tube boilers with a chain grate stoker structure.
circulating fluidized bed combustion (CFBC) technology has many advantages that other combustion methods do not have.
YLW thermal oil heater is square coil horizontal chain grate shop-assembled heater, chain grate and heater proper are transferred separately.
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Oct 01, 2018 · Much like the return of condensate to the boiler, recovering the heat from the boiler blowdown can increase boiler efficiency. The blowdown valve is used to remove boiler water which contains soluble and insoluble solids. It helps reduce the level of dissolved solids in the boiler water to prevent the boiler scale.View More
Turndown. Turndown is the ability of the boiler to achieve a wide range (from low to high) of output. If a boiler has a high turndown ratio, then it is able to supply steam at lower rates without shutting down and restarting. This means that higher turndowns can offer efficiency improvements when demand varies.View More
Turbulators are metal baffles inserted into fire tube boilers to increase the heat transfer by increasing the surface area and slowing down the combustion gases. Soot blowers use steam or compressed air to help keep the fire-side surface of solid fuel or oil fired boilers clean.View More
The optimum ratio of fuel to air and keeping the excess air as low as possible keeping in mind the complete combustion of fuel can increase the furnace temperature thereby increasing the radiation heat. Reducing excess air by 5% can increase boiler efficiency by 1%.View More
The three main factors in determining efficiency are therefore flue-gas exit temperature, excess air and burnout, all of which are dependent on the technology. The flue-gas exit temperature is related to boiler design rather than the combustor. A well-designed boiler can achieve low exit gas temperatures for any of the technologies.View More
Typically, 1) Thermal efficiency reflects how well the boiler vessel transfers heat. The figure usually excludes radiation and convection losses. 2) Combustion efficiency typically indicates the ability of the burner to use fuel completely without generating carbon monoxide or leaving hydrocarbons unburned.View More
attainable. An often-stated rule of thumb is that boiler efficiency can be increased by 1% for each 15% reduction in excess air or 40°F reduction in stack gas temperature. Suggested Actions Boilers often operate at excess air levels higher than the optimum. Periodically monitor …View More
Jan 04, 2018 · Fuel-To-Steam Efficiency Fuel-to-steam efficiency is a measure of the overall efficiency of the boiler. It accounts for the effectiveness of the heat exchanger as well as the radiation and convection losses. It is an indication of the true boiler efficiency. 7. Factors Affecting True Boiler Efficiency 1. Flue gas temperature 2.View More
The boiler efficiency by “Losses Method” or “Indirect Method” can be calculated by considering a varied number of factors such as unit load, feed water flow at economizer inlet, dry bulb temperature, wet bulb temperature, fly ash, bottom ash, gross calorific value, calorific value, total secondary air flow, total primary air flow, total air flow, total main stream flow, carbon, nitrogen, hydrogen, oxygen, moisture, etcView More
Of these evaluation criteria, a key factor is fuel usage or boiler efficiency. Boiler efficiency, in the simplest terms, represents the difference between the energy input and energy output. A typical boiler will consume many times the initial capital expense in fuel usage annually.View More
Boiler efficiency is a combined result of efficiencies of different components of a boiler. A boiler has many sub systems whose efficiency affects the overall boiler efficiency. Couple of efficiencies which finally decide the boiler efficiency are-. Combustion efficiency. Thermal efficiency.View More
May 29, 2020 · According to the ASME Energy Balance Method, some factors affect the calculation of boiler efficiencies such as stack, radiation, and convection losses. Even though boiler design is still a major factor, there are other principal factors that affect boiler efficiency calculation.View More
Mar 24, 2017 · A turbulator is a device inserted inside of the tubes of the boiler, tube heat exchangers, and other equipment responsible for transferring heat. This device increases the heat transfer efficiency by maintaining a turbulent flow through the boiler passes. In most instances, turbulators are installed in the final boiler pass.View More
OTHER CONSIDERATIONS To optimize the performance and improve the energy efficiency of a boiler system, consider other factors. Some are a matter of regular maintenance and small-scale improvements; others are considered when a major upgrade is required.View More
Control excess air of your boiler. 5% Reduction in the Excess air can increase boiler efficiency up to 1%, controlling 3 Ts of combustion. (Time, Temperature and Turbulence). Perform soot blowing on time. Fouling of boiler tubes surface by soot will bring about a rise in flue gas temperature.View More
Mar 04, 2020 · The ideal behind any improvement or modification is to increase the thermal efficiency of the power plant. Thus thermal efficiency improvement techniques are: By decreasing average temperature at which heat is rejected from the working fluid (steam) in the condenser.View More