In this article we will discuss about the performance test and efficiency calculation of boiler. Feed Water: The measurement of flow rate of feed water can be done by different methods. One of the best methods, if it can be arranged, is for the volume of feed water to
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Water tube boiler—a type of boiler that contains water-filled tubes that allow water to circulate through a heated firebox, p. 296. 14.1 Introduction Steam has many applications and a long history in the process industries. Steam provides efficient heat transfer and
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In order to deaerate the boiler feedwater, water is sprayed into a steam atmosphere. This heats the water to within a few degrees of the temperature of the saturated steam. Because the solubility of oxygen in water is very low under these conditions, 97 to 98% of the oxygen in the incoming water is released to the steam and is purged from the system by venting.
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22/8/1994 · The method of any of Claims 1 - 19 wherein said phosphate-feed tracer is an active tracer, wherein said active tracer provides a performance benefit to said boiler water system downstream of the point at which said phosphate feed rate value is determined, and
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Condensate Return is also expressed as % of FWF If Condensate Return = 60% Make up = 40% % Condensate + % Make up = = FWF As the boiler water cycles of concentration increase then the feedwater flow and the steam make approach the same number. Basic Boiler Calculations.
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Since water impurities cause boiler problems, careful consideration must be given to the quality of the water used for generating steam. The composition of boiler feed water must be such that the impurities in it can be concentrated a reasonable number of times inside the boiler, without exceeding the tolerance limits of the particular boiler design.
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17/3/2015 · Steam, Boiler, and Blowdown Pressure are the same. Combustion Efficiency is the % of fuel energy that is directly added to the feedwater and not otherwise lost or used. Blowdown Rate is the % of incoming feedwater mass flow rate that leaves the boiler as a saturated liquid at boiler pressure.
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16/7/2009 · For boiler water PH is maintained between 11-11.8 and that of feed water between 7-9. If either of the values increases, water will accordingly become acidic or alkaline, leading to detrimental effects caused due to acidic attack or caustic embrittlement. This may damage the boiler …
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This standard lays down specifications for feed water and boiler water for low and medium pressure land boilers (boilers operating up to 5·9 MN/m 2). 1.2 Land boilers operating at pressures higher than 5·9 MN/m 2 ; marine boilers and locomotive boilers are not covered in this standard.
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16/10/2017 · Following precautions should be observed to reduce foaming and priming: o Oil, soap and other suspended impurities should be removed from boiling feed water. o Various valves should not be opened suddenly to maximum. o Water in the boiler should be at its maximum possible level. 10. Effect of impurities 10Ajaypalsinh Barad 4.
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29/4/2020 · How to know: 1. As steam consumption is more feed pump will be continuous running. 2. Excessive feed water consumption from cascade tank or feed water tank. 3. If the large amount of leakage, boiler water level will be low, steam pressure will be drop and continuous firing of boiler. 4.
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• The pH of the feed water should be below 9.2, to prevent copper loss in the system • Optimum pH in the feed water should be 8.5-9.2 Deaerator Ratings • Deaerators are categorized by the quantity of oxygen that they are able to remove at boiling point. Theare;
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5/4/2020 · Calcium Sulphate (CaSO4) Although Calcium Sulphate is more soluble in water than Calcium Carbonate, it can be just as troublesome when present in boiler and cooling water systems. Calcium Sulphate, like Calcium Carbonate, but unlike most salts, has an inverse temperature/solubility relationship in water.
Read More13/6/2017 · The precipitation and deposition of hardness salts in feed water to low pressure boilers is commonly a result of raising the feedwater temperature or the pH value. The later problem should be avoided by the use of alkalinity builders dosed into the hotwell or boiler shell.
Read More16/7/2009 · For boiler water PH is maintained between 11-11.8 and that of feed water between 7-9. If either of the values increases, water will accordingly become acidic or alkaline, leading to detrimental effects caused due to acidic attack or caustic embrittlement. This may damage the boiler …
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