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Domestic hot water and heating series: gas hot water boiler, vacuum hot water boiler, vertical atmospheric pressure hot water boiler, electric hot water boiler Factory use, high temperature steam: wns fuel gas steam boiler, szs water tube steam boiler, vertical steam boiler, electric steam boiler

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FANGKUAI is founded in 1998, which is a clean fuel boiler enterprise integrating R&D, manufacturing, sales and service. In the past 20 years of development and innovation, the company has grown into a global enterprise, and its products have been exported to more than 80 countries including Russia, Mongolia and Thailand, and have established long-lasting cooperative relations with local enterprises!

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Direct Method and Indirect Method for Boiler Efficiency

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θrion Gas Fired Steam Boiler

Capacity:1-20t/h

Rated thermal efficiency: 100-104%

Fixed working pressure: ≤1.6MPa

Applicable fuel:natural gas etc.

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Gas(oil) Fired Integrated Hot Water Boiler

Capacity:0.7-14MW

Rated thermal efficiency:96-98%

Fixed working pressure:≤1.25MPa

Applicable fuel:Natural gas, light oil, etc.

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H6 Gas Fired Hot Water Boiler

Capacity:0.7-2.8Mw

Rated thermal efficiency: 97.2-106%

Fixed working pressure:0.1MPa

Applicable fuel:Natural gas, etc.

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T7 Vacuum Hot Water Boilerr

Capacity:2.8-7.0Mw

Rated thermal efficiency:≥105.5%

Fixed working pressure:-0.02MPa

Applicable fuel:Natural gas, etc.

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V6 Gas Fired Hot Water Boiler

Capacity:99Kw

Rated thermal efficiency:97.2-104.4%

Fixed working pressure:1.0MPa

Applicable fuel:Natural gas, etc.

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Electric Steam Boiler

Capacity:0.5-4.0 t/h

Rated thermal efficiency:98%

Fixed working pressure:≤1.25MPa

Applicable fuel:electric energy

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  • boiler efficiency calculation indirect method excel

    Boiler Calculations – KTH. Calculating boiler efficiency …. Indirect method …. Another tool used in boiler calculation is the pressure-enthalpy diagram for. 1. ENERGY PERFORMANCE ASSESSMENT OF BOILERS. …. The Indirect Method: Where the efficiency is the … 1.6.3 Boiler Efficiency by Direct Method: Calculation and ….Get Price

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    10. Find out the excess air percentage supplied for a boiler if the theoretical CO 2 is 20.67% and the actual CO 2 measured in the flue gas is 14%. Ans. Excess air supplied = 47.44% 14 x (100 20.67) 7900 x (20.67 14) = − − Long type questions 1. For the evaluation of boiler efficiency by direct method, describe how the heat input can beGet Price

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    Direct and Indirect efficiency in boilers best .energypurse.com. Indirect efficiency is also known as heat loss efficiency calculation method. In this method, efficiency calculation is done by subtracting heat loss fraction from 100.Get Price

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    Direct and Indirect Boiler Efficiency The overall boiler efficiency depends on many more parameters apart from combustion and thermal efficiencies. These other parameters include ON-OFF losses, radiation losses, convection losses, blow down losses etc.Get Price

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    There are basically two methods to calculate the efficiency of boiler, direct method and indirect method. Both the methods give different values as direct method does not consider any losses whereas indirect method gives the result by calculating all the losses. Efficiency for different GCV has been shown in this paper for FBC boiler and this Get Price

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  • Reliability of Direct Method - Thermal Efficiency vs

    Jun 25, 2012 · The Indirect Method showed an efficiency of 81.7% & Direct Method showed 52%. There are scores of examples. I had observed that only 1.5 to 2% boilers are under operation where Direct & Indirect Methods closely match with deviation of < 2 to 3%, in all other cases the deviation is average of 8 to 10% & maximum deviation is around 20%.Get Price

  • Advantages of direct method Disadvantages of direct method

    Advantages of direct method: Disadvantages of direct method: b. Indirect Method There are reference standards for Boiler Testing at Site using indirect method namely British Standard, BS 845: 1987 and USA Standard is ASME PTC­4­1 Power Test Code Steam Generating Units'. Indirect method is also called as heat loss method. The efficiency can be arrived at, by subtracting the …Get Price

  • Part II. Energy Efficiency by Sectors Energy Efficiency in

    There are two methods of assessing boiler efficiency. 1) The Direct Method: Where the energy gain of the working fluid (water and steam) is compared with the energy content of the boiler fuel. 2) The Indirect Method: Where the efficiency is the difference between the losses and the energy input. Boiler Efficiency Evaluation Method 1. Direct Get Price

  • ISSN No. (Online) : 2249-3255 Efficiency of Boiler for

    necessary to calculate the efficiency. There are basically two methods to calculate the efficiency of boiler, direct method and indirect method. Both the methods give different values as direct method does not consider any loses whereas indirect method …Get Price

  • Boiler Efficiency By Direct Method & Indirect Method

    As we are aware, boiler efficiency can be stated in two different ways, one being direct and another, indirect. Each method has its own advantages and disadvantages. The direct method gives us more realistic efficiency values but in order to understand where the losses are taking place, indirect efficiency will be more helpful.Get Price

  • 1. ENERGY PERFORMANCE ASSESSMENT OF BOILERS

    Indirect Method. Direct method: Direct method is quick method for boilerefficiency calculation, In this method, Percentage of total heat output vs heatinput is calculated to establish boiler performance. Boiler Efficiency =Heat …Get Price

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  • Boiler Efficiency - an overview | ScienceDirect Topics

    Boiler heat exchanger effectiveness is specific boiler thermal efficiency, which is converted to heat energy from the fire side to the water side. In addition, thermal efficiency is seriously affected by soot formation/scale formation on the boiler …Get Price

  • International Journal of Innovative Research in Science

    There are two methods to find out boiler efficiency. 1. Direct method 2. Indirect method 1. Direct method:- Boiler efficiency is calculated with this formula Boiler efficiency = Boiler efficiency η = ∗100 = ∗( − ) ∗ 𝑉 ∗100 2. Indirect method By this method, efficiency could be measured easily by measuring all the losses occurring Get Price

  • A REVIEW OF INDIRECT METHOD FOR MEASURING THERMAL

    The indirect method is the most accurate method to determine boiler efficiency. In this method, the parameters that effect on efficiency be measured and different types of losses be calculated. Three of the most effective parameters are flue gas …Get Price

  • 1. ENERGY PERFORMANCE ASSESSMENT OF BOILERS

    Boiler Efficiency: Introduction and Methods of CalculationGet Price

  • What is the difference in calculation of boiler efficiency

    Answer: GCV = Gross Calorific Value GCV includes moisture present in this fuel. While burning the fuel in boiler, there will be moisture loss. This moisture loss will be captured in GCV based calculation i.e., Efficiency = 100 - (Moisture Loss) - (Other loss) NCV …Get Price

  • Boiler Efficiency Improvement & Heat Loss Explained in

    In real practice, two techniques are usually used to find out boiler performance, namely direct method and indirect method of efficiency calculation. Direct efficiency This is also recognized as the input-output method because it requires only the valuable output like steam and the heat input for estimating the boiler efficiency.Get Price

  • Fuzzy modeling of boiler efficiency in power plants

    Jan 04, 2021 · Popular methods to evaluate boiler efficiency can be grouped into three categories, i.e., direct method, indirect method and soft computing method. • The direct method compares the energy gained by the working fluid to the energy content of the fuel, which requires only the heat output and heat input to evaluate boiler efficiency.Get Price

  • ASME PTC 4- iNdirect Method: Stack Loss Method

    ASME PTC-4 – Indirect Method: Stack Loss Method This method approximates the stack losses of a boiler to estimate boiler efficiency. Parameters The parameters needed to calculate this method are given below. These data are calculated during source testing. 1. Stack temperature (T Stack) 2. Dry oxygen in flue gas (O 2,Dry,%) in percentGet Price

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    Apr 12, 2011 · Direct and Indirect efficiency in boilers -. Direct and indirect efficiency of boiler are the two methods for finding boiler efficiency, Direct method is quick method for boiler efficiency calculation, In this method, Below Excel sheet may be …Get Price

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    In actual practice, two methods are commonly used to find out boiler efficiency, namely direct method and indirect method of efficiency calculation. Direct efficiency. This method calculates boiler efficiency by using the basic efficiency formula-η=(Energy output)/(Energy input) X 100. In order to calculate boiler efficiency by this method, we Get Price

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    Dec 14, 2013 · Perhitungan Efisiensi Boiler (Direct Method) Hendra Yudisaputro December 14, 2013 1. Untuk memudahkan pemahaman dari penjelasan artikel sebelumnya, maka dalam tulisan berikut akan disertakan contoh pembahasan sederhana untuk mengevaluasi efisiensi boiler dengan metode langsung. Diketahui data dari sebuah pembangkit listrik tenaga uap adalah Get Price

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    efficiency in steam boilers, direct method (input-output method) and indirect method (heat loss method). The errors in direct method make significant change in efficiency thus indirect method is more accurate method for measuring the efficiency. The indirect method is the focused method in this study, therefore various type of losses be evaluated.Get Price

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