0
- Input-output method
Output is defined as the heat that is absorbed by working fluid. Input is defined as the chemical heat of fuel plus the heat that is added to working fluid, air, gas and other fluid circuit in which the fluid circuit across thin layer.
- Heat Loss Method
There are several factors act as the source of heat loss combustion. These factors will be used to calculate boiler efficiency based on heat loss method. The source of heat loss can be seen as following below:
a. Heat loss due to dry flue gas
Heat loss due to dry flue gas is the heat loss which is contained in dry flue gas such as CO2, O2 and N2. These gases are one of causes of heat loss in combustion process. The high temperature of flue gas coming out from boiler affect amount of heat loss.
The weight and heat loss of dry flue gas of combustion of coal can be calculated as following formula:
Wdfg = mCO2 + mSO2 + mO2 + mN2
Eloss dfg = Wdfg x Cp x (To - Ts)
Where:
Wdfg = weight of dry flue gas (kg/kg coal)
Eloss dfg = heat loss in dry flue gas (kJ/kg)
To = temperature of dry flue gas coming out from boiler
Ts = temperature of surrounding
by Gajanan Nalegaonkar
What else can I help you with?
Is the ibr rating on a boiler the net output that that boiler puts out?
The IBR (Indian Boiler Regulation) rating refers to the efficiency and performance of a boiler, specifically indicating the net output of steam or hot water it can produce. However, it is essential to note that the IBR rating is based on specific testing conditions and may not fully represent real-world performance. Therefore, while it gives a good indication of the boiler's capabilities, actual output can vary depending on operating conditions and usage.
What is boiler output?
boiler out means temperature.pressure,steam flowrate,enthapy
What is the purpose of boiler drum?
Purpose of the boiler drum is to collect steam from all the various tubes in a boiler, and send it to the turbine to spin the generator
How calculate actual boiler drum level?
boiler drum diffferential pressure level calculation explained
What is the meaning of once through boiler?
The term "once-through boiler" refers to a special type of water-tube boiler composed oftubes, in which water is input at the bottom, and steam is produced from the top.
What is the annual kWh for 60 hp boiler?
To determine the annual kWh for a 60 hp boiler, you would need to know the average hours of operation per year and the efficiency of the boiler. You can use the formula: kWh = hp x 0.7457 x hours of operation x boiler efficiency. This formula takes into account the power factor and converts horsepower to kilowatts.
What is boiler combustion efficiency?
boiler efficiency is how much water is converting to steam.
How is boiler efficiency calculated?
Boiler efficiency is calculated by determining the steam value per hour and dividing it by the amount of fuel which is consumed per hour. By doing this one can determine the efficiency of a boiler.
What is efficiency of boiler?
see results in attached link: Philips 3-drum 'Accessable' boiler
How do you increase boiler efficiency?
we can increase boiler efficiency by recovering the heat which is being carried by flue gases.by incorporating different things like Economizer, Air pre-heater , Super-heater and feed-water heater, we can there ll be notable increase in efficiency of boiler.
What is the use of economiser in boiler?
The economizer is used to raise feedwater temperature up to nearly the temperature of the boiler to avoid thermal shock and improve the boiler's efficiency. Every 11 degrees Fahrenheit increase in feedwater temperature yields a 1% increase in boiler efficiency.
What is efficiency of Lamont boiler?
see results in attached link: Philips 3-drum 'Accessable' boiler
Define equivalent evaporation and boiler efficiency?
difine
Why economiser is used in boiler?
An economizer is used to heat boiler feedwater up closer to the temperature of the boiler water, using heat from the boiler exhaust gases, heat that would otherwise be wasted. The main reason is to improve the efficiency of the boiler. For every 44 degree F drop in exhaust gas temp. there is an 11 F rise in feedwater temperature and a 1% gain in boiler efficiency.
How can I find the best Combi Boiler for my home?
To choose the best Combi Boiler, consider efficiency, output, and warranty. Boiler Hut can help you select the right one.
Can I install a back boiler in a new home?
Back boilers are outdated and no longer recommended. Boiler Hut advises installing a modern boiler for better efficiency and safety.
What is the full form of BECR in boiler?
The full form of BECR in the context of boilers is "Boiler Efficiency and Combustion Research." This term typically relates to studies and analyses aimed at improving the efficiency and effectiveness of boiler operation, focusing on combustion processes and overall energy utilization.
