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  • Explain the role of Eriochrome Black T and ammonia buffer

    4. What are the disadvantages of using hard water in boiler? (Nov. 2010) Water used for steam generation should be free from hardness, otherwise it will cause boiler problems like scale and sludge formation, priming and foaming, boiler corrosion, etc. Hence, water is …Learn More

  • Steam Calculators: Boiler Calculator

    Mar 17, 2015 · Feedwater Mass Flow = Steam Mass Flow / [ 1 - Blowdown Rate ] Using the Steam Property Calculator, properties are determined using Deaerator Pressure and Quality = 0 (Saturated Liquid). The Specific Enthalpy is then multiplied by the Mass Flow to get the Energy Flow: Feedwater Energy Flow = Specific Enthalpy * Mass Flow.Learn More

  • Development and Cost Estimation for Sizing 5 Kw Palm

    Development and Cost Estimation for Sizing 5 Kw Palm Kernel Shell Steam Boiler 1K. O. Oladosu, combustion efficiency of 64.5% for a fuel feed rate of 17.3 kg/hr. The boiler's maximum steam temperature, Feed water was supplied to drum boiler and down comer risers loop connected to superheater tube. In addition, facilities for Learn More

  • MEETING OF THE BURTON-ON-TRENT SECTION, HELD AT …

    The boiler feed is make-up distilled, and de-aerated, water is an estimation of the quality and quantityoftheimpuritiespresent,andwhilst. of the active agents in the progress of cor rosion is colloidal ironhydroxide,anditis of. 606 THE COLLOIDAL CONDITIONING OB' BOILER FEED WATEB.Learn More

  • Proper sizing of Boiler Feedwater System

    A properly sized feedwater system will have a tank adequately sized to feed your boiler and pumps selected to deliver that water at the correct rate and pressure. CALCULATE THE STORAGE TANK NEEDED. In most cases ten minutes of water should be readily available for your boiler. One boiler horsepower = 34.5 lbs/hr of steam (or water) from and at Learn More

  • Utility systems - processdesign

    Feb 22, 2016 · Boiler-feed water (BFW) is used to produce steam. Both may need to be purified to prevent impurities from contaminating a process or from foul equipment. It can be used as a cooling stream when the temperature of the stream to be cooled is greater than ~300 ⁰F.Learn More

  • Water Handbook - Boiler Blowdown Control | SUEZ

    Blowdown control. Boiler blowdown is the removal of water from a boiler. Its purpose is to control boiler water parameters within prescribed limits to minimize scale, corrosion, carryover, and other specific problems. Blowdown is also used to remove suspended solids present in the system. These solids are caused by feedwater contamination, by Learn More

  • Easy to control and distribute - Knowledge Exchange Platform

    11. A rise in conductivity of boiler feed water indicates ____ . a) drop in the contamination of feed water b) greater purity of feed water c) rise in the contamination of feed water d) it has got no relation with the contamination of feed water 12. Demineralisation of water is the process to remove -----Learn More

  • Water - SlideShare

    Apr 07, 2016 · Sludge remain suspended in boiler water. Scale forms hard coating on boiler. Blow down operation can remove sludge. Blow down operation can not remove scale. 38. Caustic embrittlement It is a type of boiler corrosion which makes boiler material brittle. This is caused by using highly alkaline water in the boiler, most commonly in high pressure Learn More

  • Explain the role of Eriochrome Black T and ammonia buffer

    4. What are the disadvantages of using hard water in boiler? (Nov. 2010) Water used for steam generation should be free from hardness, otherwise it will cause boiler problems like scale and sludge formation, priming and foaming, boiler corrosion, etc. Hence, water is …Learn More

  • MCE 508 POWER GENERATING PLANTS (3 UNITS) …

    The feed water to the boiler is at a temperature of 41.5oC. The coal used for firing the boiler has a calorific value of 31000 kJ/kg and is used at the rate of 670 kg/h. Determine: (a) the thermal efficiency of the boiler and (b) the equivalent evaporation of the boiler in kg/kg of coal. An economizer is fitted to the boiler which raises the Learn More

  • 1. ENERGY PERFORMANCE ASSESSMENT OF BOILERS

    Calculating Boiler Chemical Requirements – Water Learn More

  • 1. ENERGY PERFORMANCE ASSESSMENT OF BOILERS

    3. Feed water 4. Condensate water 5. Combustion air c) Temperature measurements for 1. Flue gas 2. Steam 3. Makeup water 4. Condensate return 5. Combustion air 6. Fuel 7. Boiler feed water d) Pressure measurements for 1. Steam 2. Fuel 3. Combustion air, both primary and secondary 4. Draft 1. Energy Performance Assessment of Boilers Bureau of Learn More

  • Guides and Recommended Procedures For Water Treatment

    Feedwater is water being applied to the feedwater heater or to the boiler and consists of both make-up water and condensate. Boiler water is water circulated in a boiler. Condensate is condensed steam which has been cooled in the plant heating or process system and returned to the boiler system.Learn More

  • Boiler Feedwater Treatment (Part II): Water Treatment

    Steam Calculators: Boiler CalculatorLearn More

  • 2nd mid examinations - GNI Mechanical 4

    In low pressure boilers carbonate conditioning of boiler feed water is carries out to remove [ ] a. It produces scales inside the boiler. Estimation of hardness of water by EDTA method is used to determine [ ] Anti-skinning agent b. antifoaming agent c. anti-ageing agent d. anti Learn More

  • Guides and Recommended Procedures For Water Treatment

    Feedwater is water being applied to the feedwater heater or to the boiler and consists of both make-up water and condensate. Boiler water is water circulated in a boiler. Condensate is condensed steam which has been cooled in the plant heating or process system and returned to the boiler system.Learn More

  • DRAFT BOILER/FEEDWATER GUIDELINES

    pitting can result with possible rupture of boiler condensate piping or boiler tubes. 3.3.4 Rusty water in the boiler gage glass is a sure sign of acid corrosion in the boiler feedwater/condesate system or in the boiler itself. 3.3.5 Make-up water is the major source of carbon dioxide. The first priority is to minimize the amount of make-up water.Learn More

  • What Is a Boiler Feed Water Treatment System and How …

    3. Feed water 4. Condensate water 5. Combustion air c) Temperature measurements for 1. Flue gas 2. Steam 3. Makeup water 4. Condensate return 5. Combustion air 6. Fuel 7. Boiler feed water d) Pressure measurements for 1. Steam 2. Fuel 3. Combustion air, both primary and secondary 4. Draft 1. Energy Performance Assessment of Boilers Bureau of Learn More

  • Boiler Feedwater - an overview | ScienceDirect Topics

    Boiler feed water quality is limited owing to problems of (1) scaling, (2) corrosion, and (3) foaming. In order to avoid these problems, the quality guidelines shown in Table IV have been adopted. Data in Table IV show a major difference between cooling water and boiler feed water quality constraints, in that boiler feed water has a strong relationship between water quality and the pressure of Learn More

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