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  • CHAPTER TWO: Boiler Operation Maintenance & Safety Study …

    CHAPTER TWO: Boiler Operation Maintenance & Safety Study Guide 2.1 Boiler Design and Construction Boiler: A boiler is a closed vessel in which water is heated, steam is generated, superheated or any combination thereof under pressure or vacuum by the direct application of heat from combustible fuels or electricity. The steam produced is used forGet Price

  • Water Handbook - Measurement of Steam Purity | SUEZ

    The specific conductance of a sample, measured in microsiemens (µS) or micromhos (µmho), is proportional to the concentration of ions in the sample. When boiler water is carried over in steam, the dissolved solids content of the boiler water contaminates the steam, and steam sample conductivity increases.Get Price

  • john thompson africa boiler makers - ZBG Boiler

    john thompson africa boiler makers have a three-pass round coil structure. A conical coil is used for the effective protection of the furnace wall at the boiler end. This product is equipped with an advanced combustion device and is fully automated in operation. After the burner ignites the fuel, flame fills the round coil tubes and transfersGet Price

  • Boiler Steam Calculator - Cleaver-Brooks

    Steam cost/1000 Kgs. Max Gas burning rate cu m/hr. Steam cost/1000 Kgs. Max Oil burning rate lts/hr. $11.38/1000 lbs of steam. 157.14 Gal/hr.Get Price

  • The #1 Industrial Boiler Sizing Guide - Powerhouse

    This calculation translates the steam load (in pounds per hour) to boiler horsepower. Each boiler is given a boiler horsepower (BHP) rating based on the steam output capacity at 212°F and 0 psig. For this calculation, you will enter the steam load in pounds per hour, which will be divided by a constant of 34.5.Get Price

  • Boiler Fuel Consumption Calculation--ZBG

    Boiler Fuel Consumption Calculation Kefid 15:07:05. Many customers ask us boiler price, the cost of the boiler and how to calculate boiler fuel consumption when they want to purchase a boiler.. For the calculation of boiler fuel consumption, firstly, determine the specifications and boiler steam production, and the actual enthalpy increment of the boiler is calculated from the …Get Price

  • Boiler Water Treatment Chemicals, Feed, and - Steam Forum

    A boiler product contains 10% EDTA and 15% polymer. It is applied to a boiler operating at 20 cycles with 0.1 ppm feedwater hardness. Feedwater dosage is 8.8 ppm to yield 10 ppm free EDTA and 26 ppm polymer. If the hardness goes up to 1 ppm or the product is used in another systemGet Price

  • Question: How To Calculate Boiler Efficiency

    What is the capacity of a boiler if its heating surface area is equal to Assume boiler with dimensions 10 x 10 x 20 surface is 10 x 10 x 2 = 200 and 10 x 20 x 4 = 800 total 1000 SM volume is 10 x 10 x 20 = 2000 M^3. Boiler shall give you 25 TPH for a …Get Price

  • Sizing a Steam Boiler - U.S. Boiler Company

    Dec 05, 2017 · An important note on boiler sizing – all the supply piping in the basement should be insulated with a minimum of 1" of pipe insulation. A better choice would be 1-1/2" or 2" of pipe insulation. An un-insulated steam main is equal to a radiator and must be calculated and added to the above calculation. When operating a steam boiler Get Price

  • Steam Boiler Heating Surface calculation - Boiler Supplier

    Nov 01, 2017 · Steam Boiler Heating Surface calculation. How do you calculate heating surface of a steam boiler … so question,, what is the heating surface area of a boiler with 21 tubes, 2.5" in diam, 16′ long. the calculation will look like this. diam x pi x (16′ x 12") x 21 divided by 144. 2.5 x 3.1416 x 192 x 21 divided by 144.Get Price

  • Multiple Choice Questions on Steam Boilers and Engines

    Multiple Choice Questions on Steam Boilers and Engines - Set 16 MCQ Steam Boilers Edit Practice Test: Question Set - 16. 1. The air pressure at the fuel bed is reduced below that of atmosphere by means of a fan placed at or near the bottom of the chimney to produce a draught. Such a draught is calledGet Price

  • 51 Boiler Operator Interview Questions and Answers

    Do you have any questions for us, then plz ask? Explain the abilities you have in order to work with us as a Boiler Operator? Explain how important is safety to you? Explain what is the difference between an induced draft and forced draft? The object of producing draught in a boiler is A. to provide an adequate supply of air for the fuel combustion<br /> B. to exhaust the gases of …Get Price

  • Solved A steam power plant is designed to operate using

    Question: A steam power plant is designed to operate using the Rankine cycle at a range of boiler pressures of between 5 bar and 80 bar with a condenser pressure of 0.08 bar. The heat required in the boiler is supplied by combusting a fuel of calorific value 33000 kJ/kg. The feed water to the boiler is saturated liquid at the boiler pressure.Get Price

  • CHAPTER 3 COMBUSTION CALCULATION

    boiler at 300oC (all the water formed will be vapour). In addition, a substantial amount of heat is also lost through the boiler wall and other uncounted sources. Calculate the flue gas composition (both dry and wet basis) leaving a boiler. Calculate the combustion efficiency of a steam boilerGet Price

  • Calculating Boiler Chemical Requirements – Water

    Jun 26, 2017 · C. Sample Calculation Assume boiler is operating at 10 cycles of concentration with feedwater at 205 o F. This equates to a dissolved oxygen content of 0.7 ppm or …Get Price

  • SAMPLE TEST QUESTIONS BOILER MAKER - ITA WEBSITE

    SAMPLE TEST QUESTIONS BOILER MAKER - ITA WEBSITE 5 A bulk storage tank has a mean diameter of 80 ft. and a shell plate thickness of 1 1/8 in. What is the inside radius to which the shell plates would be positioned? A. 39 ft. 10 7/8 in. B. …Get Price

  • [Solved] The equivalent evaporation (kg/hr) of a boiler

    The equivalent evaporation (kg/hr) of a boiler producing 2000 kg/hr of steam with enthalpy content of 2426 kJ/kg from feed water at temp. 40°C (liquid enthalpy = 168 kJ/kg; enthalpy of vaporisation of water at 100°C = 2258 kJ/kg is: This question was previously asked in.Get Price

  • How do you calculate steam output on a boiler?

    Sample Questions Steam Certification Board Steam Certification Board Sample Test Questions for Written Steam Boiler Operator Examinations The following are samples of questions for the five classes of steam boiler operator certification. These questions are not the same questions an applicant will find on an examination but only samples.Get Price

  • Solved A steam power plant is designed to operate using

    Question: A steam power plant is designed to operate using the Rankine cycle at a range of boiler pressures of between 5 bar and 80 bar with a condenser pressure of 0.08 bar. The heat required in the boiler is supplied by combusting a fuel of calorific value 33000 kJ/kg. The feed water to the boiler is saturated liquid at the boiler pressure.Get Price

  • Solved Objectives:- Calculation of the steam generator

    Question: Objectives:- Calculation of the steam generator (Boiler) efficiency. Calculation of the isentropic efficiency or efficiency inside turbine. Calculation of mechanical efficiency. Determination of Usable efficiency. Determination of total plant efficiency. Theory of Exp.: Steam generator (Boiler) efficiency: Qb Gy(h3 – h2) пь Qs Gg Get Price

  • calculation of 1 ton steam boiler – Boiler Sale

    Feb 09, 2018 · I have a NAT GAS 26,500lb/Hr Steam boiler operating at 150psi. Boiler is used for a process variable load. My question is 1. Presently I am using 90,000 liters of feed water to create Putting your boiler data in SI units, this gives me a boiler steam output of 12.031 kg/h, or roughly 12 ton/h at 10,5 bar.Get Price

  • Sample Coolers - steam, boiler water, hot liquids

    Sample coolers are used to cool fluids or vapors to a point they can be safely handled for collection and analysis. With information found on the Sample Cooler Inquiry Questionnaire, a sample cooler can be provided for applications such as steam, boiler water, chemical processes, and others, in high pressure and high temperature ranges. For instance, steam sample coolers …Get Price

  • Boiler Water Conductivity Measurement Fundamentals

    Feb 24, 2016 · For boiler water, the conductivity increases at the rate of approximately 2% (of the value at 25°C) for every 1°C increase in temperature. This can be written as: σ T = σ25 [1 + α (T – 25)] σT = Conductivity at temperature T (µS / cm) α = Temperature coefficient, per °C (Typically 0.02 / °C or 2%°C)Get Price

  • 70 questions with answers in BOILER AND PRESSURE VESSELS

    May 18, 2021 · Nov 6, 2019. Answer. The boiler feed water pipes and the riser tubes are connected to a steam drum, where the liquid and gas phases are separated. In low pressure and small scale drums, the two Get Price

  • Steam Boiler Questions and Answers - Steam Esteem

    Question: Boiler pressure In tanker vessels we use boilers for cargo heating. Lets say that steam pressure to deck line adjusted to 5 bar. What will be most economical? Boiler pressure adjusted to 7 bar or to 16 bar ? Answer: The higher pressure would be advantageous if the boiler is oil-fired, but the difference is hardly measurable.Get Price

  • john thompson 3ton per hour boiler

    7Package Boilers, Watertube Boilers, Utility Boilers - John ThompsonEngineered to be more efficient, more economical, more eco-friendly. Our boilers are designed and built to perform for a lifetime.John Thompson boilersOur proud history of boiler design and manufacturing supports our principal focus: to be a global leader in energy and environmental solutions.8 ton john …Get Price

  • BOILER WATER TEST - Marine Inbox

    Dec 13, 2019 · Take 100 ml sample of boiler water, add lml (10 drops) of Phenolphthalein, add N/50 sulphuric acid to clear the sample. Calculation: ml of N/50 acid used x 10 = p.p.m. CaC03. Phenolphthalein is less alkaline than hydroxides or carbonates, and when it is added to a sample containing hydroxides and or carbonates it will turn pink in color.Get Price

  • APPENDIX 1 MEASURING BOILER EFFICIENCY

    App 1-7 HHV is the higher heating value, hg is the enthalpy in Btu/lb of water vapour at 1 psi and the flue gas temperature (FGT) in °F, and hf is the enthalpy of water at the combustion air temperature (CAT) in °F. hg can be determined from steam tables or from the equation hg, Btu/lb = 1055 + (0.467 x FGT). hf can also be determined from steam tables, or from the simple …Get Price

  • Boiler Operator Online Practice Tests 2019 - Boiler

    Boiler Operator - 327760 Practice Tests 2019, Boiler Operator technical Practice questions, Boiler Operator tutorials practice questions and explanations.Get Price

  • 70 questions with answers in BOILER AND PRESSURE VESSELS

    May 18, 2021 · Nov 6, 2019. Answer. The boiler feed water pipes and the riser tubes are connected to a steam drum, where the liquid and gas phases are separated. In low pressure and small scale drums, the two Get Price

  • Boiler Question and Answers - Boiler and Mechanical …

    Mar 27, 2022 · you will find here the large collection of solved Steam Boiler Question and Answers MCQs for Boiler Licensing Examination. Power plant, thermodynamics and Mechanical engineering Questions with answers in pdf …Get Price

  • CHAPTER TWO: Boiler Operation Maintenance & Safety Study …

    CHAPTER TWO: Boiler Operation Maintenance & Safety Study Guide 2.1 Boiler Design and Construction Boiler: A boiler is a closed vessel in which water is heated, steam is generated, superheated or any combination thereof under pressure or vacuum by the direct application of heat from combustible fuels or electricity. The steam produced is used forGet Price

  • Boiler Efficiency: Introduction and Methods of Calculation

    In order to calculate boiler efficiency by this method, we divide the total energy output of a boiler by total energy input given to the boiler, multiplied by hundred. Calculation of direct efficiency-E= [Q (H-h)/q*GCV]*100. Where, Q= Quantity of steam generated (kg/hr) H= Enthalpy of steam (Kcal/kg) h= Enthalpy of water (kcal/kg)Get Price

  • Multiple Choice Questions on Steam Nozzles and Boilers

    Multiple Choice Questions on Steam Nozzles and Boilers - Set 12 MCQ Steam Boilers Edit Practice Test: Question Set - 12. 1. On Millier chart, the constant pressure lines (A) Diverge from left to right (B) Diverge from right to left (C) Are equally spaced throughout (D) First rise up and Get Price

  • Boiler Exam Class 1a - ProProfs Quiz

    Mar 20, 2022 · 25. 49-1 the purpose of a safety valve on a steam boiler is to. A. Regulate or control an even amount of steam pressure. B. Safely return the condensate back to the boiler. C. Prevent the pressure in a steam boiler from …Get Price

  • Formula for Calculating Fuel Consumption of Steam …

    Formula for Calculating Fuel Consumption of Steam Boiler Liming 11:08:41. When purchasing industrial steam boilers, customers pay more attention to the cost of steam boiler, especially the fuel consumption in operation costs.The …Get Price

  • Chapter 4.1: Boiler Short type questions

    (PDF) Boiler Calculations | Michael Dellon - Academia.eduGet Price

  • Steam Calculators: Boiler Calculator - Energy

    Mar 17, 2015 · Boiler Energy = Steam Energy Flow + Blowdown Energy Flow - Feedwater Energy Flow [ Boiler Energy (Flow) = 78,495 = 89,546 + 329 - 11,380 ] Step 5: Determine Fuel Energy Fuel Energy = Boiler Energy / Combustion Efficiency [ Fuel Energy = 109,630 = 78,495 / 0.716 ] …Get Price

  • Boiler Sample Coolers - BoilerChemicals.com

    Boiler Sample Coolers are used to cool hot water or steam samples for easy handling and effective sample collection. Sample Coolers are suitable for use on hot water, saturated steam, or superheated steam services. Failure to install a sample may result in accurate testing results of you steam boiler chemicals.Get Price

  • Calculation methods of steam boiler operation factors

    Apr 15, 2020 · Szega and Czyż present the problems of the energy efficiency calculation on a dual-fuel steam boiler OPG-430 type. The available special measurement points were used to calculate the energy efficiency of the boiler. Balance methods together with the use of advanced data validation and reconciliation method of measuring points, help in the Get Price

  • Power plant and calculations: Boiler calculations for

    Apr 24, 2020 · Use btu/hr (British thermal units/hour) heat input rate to calculate boiler steam flow. It takes 970.28 btu/hr to produce 1 pound of steam at the above conditions. If 50 million btu/hr are being applied to the boiler, divide by the 970.28-btu/lb to yield 51,531-lb/hr steam flow. This is an average industrial boiler.Get Price

  • Steam Generation Calculation - Heat Transfer

    Jul 22, 2019 · The boiler is Waste Heat Recovery Boiler extracting energy from engine exhaust. The feed tank capacity is 2.7 MT. Calculation is as follows, Energy saved there by increase feed water temperature by 10 C. Q = 10 * 2700 * 4.186 Q = 113022 KJ Now the steam pressure normally is 6.5 BAR. At this pressure, the specific ethalpy of steam is 2758.87 KJ/KG.Get Price

  • Fuel and Carbon Dioxide Emissions Savings Calculation

    energy, usually in the form of steam or hot water. • A steam turbine u ses high -pressure steam from a boiler to drive a generator producing electricity. Low - pressure steam extracted from or exiting the steam turbine is used for industrial processes, space heating or cooling, domestic hot water, or for otherpurposes.Get Price

  • Boiler Water Conductivity Measurement Fundamentals

    Feb 24, 2016 · For boiler water, the conductivity increases at the rate of approximately 2% (of the value at 25°C) for every 1°C increase in temperature. This can be written as: σ T = σ25 [1 + α (T – 25)] σT = Conductivity at temperature T (µS / cm) α = Temperature coefficient, per °C (Typically 0.02 / °C or 2%°C)Get Price

  • 4th Class Boiler Test 2 - ProProfs Quiz

    Feb 13, 2013 · 4th Class Boiler Test 2. 1. 2. The economizer in the steam cycle of an electricity generating plant is located between the: Superheater and the turbine. 3. 4. That there is a proper air flow through the furnace. That all external parts …Get Price

  • Chapter 14 Boilers - Pearson

    Boilers 291 Coagulation—a method for concentrating and removing suspended solids in boiler feedwater by adding chemicals to the water, which causes the impurities to cling together, p. 301. Condensate—condensed steam, which often is recycled back to the boiler, p. 294. Damper—a movable plate that regulates the flow of air or flue gases in boilers,Get Price

  • (PDF) Boiler Calculations | Michael Dellon - Academia.edu

    Determination of steam/water parameters Given parameters Normally in a steam boiler design assignment the parameters describing the live (output) steam, e.g. mass flow, pressure and temperature are given. If the steam boiler to be designed has a reheat cycle, also reheat pressure and temperature are given. Reheat steam mass flow can be given as Get Price