## ﻿4 Ton Gas Hot Water Boiler Kyrgyzstan

• Indirect Method of Testing: ADVERTISEMENTS: In this method, the efficiency can be obtained by substracting the heat loss fractions from 100. Boiler efficiency = 100 …Learn More

• • ### Questions regarding reliability of Indirect Method for

Jun 15, 2012 · The Efficiency by Direct Method was 56%. Example 5 : A Pulverized Fuel Boiler was operating with 91% Efficiency as per Indirect Method. The Efficiency by Direct Method was 65%. 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% Learn More

• • ### Q1: What is the boiler efficiency?

The initial value of boiler efficiency for Z Boiler is depending on the boiler type, but it is normally 80-88%. In short, 80-88% in the generated heating value after the fuel is burnt by the burner regenerates into the steam heating value, the remain of 12-20% is loss.Learn More

• • ### Boiler Efficiency - an overview | ScienceDirect Topics

A boiler's indirect efficiency is determined by finding the individual losses enchanting in place in a boiler and then deducting those amounts from . Moreover, this technique includes finding the magnitudes of entire calculable losses enchanting place in a boiler by individual measurements.Learn More

• • ### Evaluation of a Boiler performance - SlideShare

Apr 02, 2017 · Boiler efficiency can be tested by the following methods: 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 …Learn More

• • ### Chapter 4.1: Boiler Short type questions

In the indirect method of boiler efficiency evaluation, list any two additional losses computed for solid fuel fired boilers as compared to liquid and gas fired boilers? Ans. • Unburnt losses in fly ash (Carbon) • Unburnt losses in bottom ash (Carbon) 4. What are the main losses which are not accounted in an indirect method of boiler efficiencyLearn More

• • ### boiler efficiency calculation indirect method excel

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 used to calculate indirect boiler efficiency.Learn More

• • ### A REVIEW OF INDIRECT METHOD FOR MEASURING …

• • ### Reasons for Gaps Between Direct and Indirect Efficiency

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.Learn More

• • ### Direct and Indirect efficiency in boilers

• • ### Boiler Efficiency Report-1

Boiler Efficiency Estimation: The efficiency of the boiler was calculated by Indirect method & considering the GCV basis method of losses measurement. In this method individual area of loss is quantified. The results obtained are tabulated below. Table: Boiler Losses / Efficiency Estimation S.N. Description of losses Unit Pre-Project GuaranteedLearn More

• • ### Q1: What is the boiler efficiency?

The initial value of boiler efficiency for Z Boiler is depending on the boiler type, but it is normally 80-88%. In short, 80-88% in the generated heating value after the fuel is burnt by the burner regenerates into the steam heating value, the remain of 12-20% is loss.Learn More

• • ### How to Check Gas Consumption of the Boiler

Mar 24, 2020 · Let's talk about the direct and indirect efficiencies of a boiler in detail. Direct Efficiency. It is a quick method for boiler efficiency calculation. The percentage of total heat output vs heat input is calculated to establish boiler performance. Direct Boiler Efficiency = Heat output / Heat Input X 100 Or Direct Boiler Efficiency = Q X (h2 Learn More

• • ### two methods calculate boiler efficiency

179Boiler Efficiency: Introduction and Methods of CalculationIn actual practice, two methods are commonly used to find out boiler efficiency, namely direct method and indirect method of efficiency calculation.How to calculate boiler efficiency by Direct Method 24 Nov 2016 Quantity of steam generated per hour (Q) in kg/hr. · Quantity of fuel used per hour (q) in kg/hr.Learn More

• • ### 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 temperature, ambient temperature, and the fuel type.Learn More

• • ### ﻿boiler flue gas loss calculation formula

ASME PTC 4- iNdirect Method: Stack Loss Method Calculate the dry flue gas loss (LDG) using the following formula: LDG = [24 x DG x (FGT – CAT)] ÷ HHV, where. DG (lb./lb. fuel) = (11CO 2 + 8O 2 + 7N 2) x (C + 0.375S) ÷ 3CO 2 FGT = flue gas temperature, ºF CAT = combustion air temperature, ºF HHV = higher heating value of fuel, Btu/lb. CO 2 Learn More

• • ### 2. ENERGY PERFORMANCE ASSESSMENT OF FURNACES

2.5.2 Indirect Method Testing Similar to the method of evaluating boiler efficiency by indirect method, furnace efficiency can also be calculated by indirect method. Furnace efficiency is calculated after subtracting sensi-ble heat loss in flue gas, loss due to moisture in flue gas, heat loss due to …Learn More

• • ### Boiler efficiency by loss Method - SlideShare

IBR Steam Boilers means any closed vessel exceeding 22.75 liters. 4. Efficiency Calculations Standards Standard Applied :- ASME Standard PTC 4.1 IS 8753: Indian Standard for Boiler Efficiency Testing British standards, BS845: 1987 5. The Indirect Method Testing/Loss Method L1. Loss due to dry flue gas (sensible heat) L2.Learn More

• • ### 1. ENERGY PERFORMANCE ASSESSMENT OF BOILERS

Basically Boiler efficiency can be tested by the following methods: 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. 1.6 The Direct Method Testing 1.6.1 Learn More

• • ### (PDF) A CASE STUDY FOR CALCULATION OF BOILER EFFICIENCY …

In this study, the efficiency of a fluidized bed boiler having a steam production capacity of 462000 kg/h and 17.2 bar pressure was calculated by using indirect method.Learn More