# Methods to Calculate CFB Boiler Efficiency

Summary:Boiler efficiency is extremely important. If the boiler isn’t burning fuel at a satisfactory rate, or if the heat has been lost over the surrounding system without being put to use, you choose a lot of waste and can even come upon problems meeting emissions standards.Blow will give two ways to calculate the CFB boiler efficiency,

14-04-2015

Boiler efficiency is extremely important. If the boiler isn’t burning fuel at a satisfactory rate, or if the heat has been lost over the surrounding system without being put to use, you choose a lot of waste and can even come upon problems meeting emissions standards.

The thing is, “boiler efficiency” is a loose term that can mean many different things. It’s often used to refer to thermal efficiency or combustion efficiency, for instance. To help clarify,we would summarize all of the kinds of boiler efficiency. All of them calculate efficiency differently and can therefore that have their own particular economic implications.

## CFB Boiler Combustion Efficienc

Combustion efficiency measures how effectively a CFB boiler transfers the chemical energy stored in fuel into usable heat. Reaching optimum combustion efficiency typically requires pumping additional air into the combustion chamber so that all fuel can be burned.
Without enough oxygen, some fuel will be left unburned and end up being soot, smoke, or carbon monoxide. Too much oxygen, on the other hand, will create excessively hot flue gas, which isn’t able to transfer all of its heat into steam production. According to combustion efficiency calculations, a CFB boiler is considered efficient when it has low levels of unburned fuel and does not require much extra air.
Determining the proper amount of air to add to a combustion process is a matter of measuring stack temperature and concentrations of either oxygen or carbon dioxide in flue gas. If you’re burning natural gas, the U.S. Department of Energy has a useful tip sheet that includes a table for making this calculation

## CFB Boiler Thermal Efficienc

Thermal efficiency measures how well a CFB boiler’s heat exchanger transfers heat from the combustion process to the water or steam in the boiler. A simple ratio expressed as a percentage, thermal efficiency is basically the input energy transferred to the water or steam heating process divided by the output energy of the combustion process.
Thermal efficiency’s shortcoming as a measure of CFB boiler efficiency is that it only measures the effectiveness of the heat exchanger. Because thermal heat can also be lost through radiation and convection via other boiler components, such as the shell or water column, thermal efficiency is limited as a calculation for measuring boiler efficiency.

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### Basic Information of CFB Boiler manufacturer--- ZG Boiler

Established:In 1945

Number of Employees:above 1500 People

Our products:industrial horizontal steam boiler and hot water boiler(biomass boiler, gas boiler, oil boiler, coal boiler, etc), CFB boiler, power plant boiler, waste heating recovery boiler, Pressure Vessel(AAC autoclave, Curing tank,etc )

Factory Size (Sq.meters):400,000 square meters

Factory Location:Factory 1: Zhengzhou,,Henan, China. Factory 2: Xingyang,Henan,China

Number of R&D Staff:376 people

Export Percentage:30-40%

Total Annual Sales Volume:US\$100 Million

Main Market:South America(Colombia, Venezuela, Guyana, Suriname, Ecuador, Peru, Brazil, Bolivia, Chile, Paraguay, Uruguay, Argentina and French Guiana),
North America(Bahamas, Canada, Costa Rica, Cuba, El Salvador, Guatemala, Honduras, Haiti, Jamaica, Mexico, Nicaragua, Panama),
Eastern Asia(Mongolia / Russia / North Korea / South Korea / Japan),
Oceania(Australia, New Zealand, Fiji),
Mid East(Bahrain, Egypt, Iran, Iraq, Israel, Jordan, Kuwait, Lebanon, Oman, Qatar, Saudi Arabia, Syria, UAE and Yemen, Palestine, Algeria, Libya, Morocco, Tunisia and Sudan, Mauritania and Somalia),
Africa(Egypt, Sudan, Libya, Tunisia, Algeria, Morocco, Ethiopia, Somalia, Kenya, Tanzania, Sierra Leone, Liberia, Cote d'Ivoire, Ghana, Togo, Niger, Nigeria, Cameroon, Gabon, Congo (Brazzaville), Zambia, Zimbabwe, Angola, Mozambique, Botswana, Namibia, South Africa),
South Asia(Nepal, Bhutan, India, Pakistan, Bangladesh, Sri Lanka, Maldives)
Southeast Asia(Vietnam, Laos, Cambodia, Thailand, Myanmar, Malaysia, Singapore, Indonesia, Brunei, the Philippines, East Timor)
Domestic Market(China)

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