Presentation on theme: "A Presentation on PRESSURE ANALYSIS & HEAT LOSS REDUCTION IN BOILER"— Presentation transcript:
1A Presentation on PRESSURE ANALYSIS & HEAT LOSS REDUCTION IN BOILER Department of Mechanical EngineeringPrepared By:Guided By:ANSARI KAUSHARALI .NDESAI KAUSHAL H.PRAJAPATI AKSHAY BPANCHAL DHAVAL HMr. H.V.GOHIL &Mr. J.V.SAVAJ
2CONTENTS BOILER INTRODUCTION INTRODUCTION OF STEAM POWER PLANT LAYOUT OF STEAM POWER PLANTMORE PRESSURE PRODUCES IN BOILER CAUSES HEAT LOSS & FUEL LOSSIDINDUSTRIAL PROCESSHEAT RECOVERY IN BOILERPROBLEM ANALYSISENERGY EFFICIENT BOILER SYSTEMSTESTING OF BOILERREDUCE THE HEAT LOSS OF BOILERIMPROVING ENERGY EFFICIENCY OF BOILER SYSTEMS:SEMESTER V PROJECT REPORT
3ABSTRACTWe have decided the IDP on “Pressure analysis & Heat reduction in boiler” after visiting industry “KABUTEX PROCESSORS” at A K Road Surat.They are using boiler steam for drying the cloth, which is manufactured to sell in the market. Boiler is operating daily on temperature of C and 6 to 7 kg/sq.cm. of steam pressure. In actual practice they require only 4 to 5 kg/sq.cm. of pressure. So, by pressure reducing valve they are decreasing the pressure. By analysis of pressure at every stage we will carry out heat loss and try to reduce the heat loss. It is useful to recover heat loss during operation of boiler and take different measure for reducing heat loss and steam loss which increases the efficiency of boiler.
4SELECTION OF PROJECTBefore final selection of project, we visited several Boiler industries for finding mechanical pressure analysis & heat loss reduction in boiler & improving energy efficiency of boiler systems related problems.We want to make a project which have special purpose & use everywhere so finally we selected the project of ‘pressure analysis & heat loss reduction in boiler’.
5PLANNING OF PROJECTBefore starting any project planning is done. Planning of a project is complicated task & should be taken care of with great care. The project works largely depend upon its planning. While planning a project, each & every detail should be worked out. We have planned our project as below:1) Literature Survey2) working principal of boiler2) Study about boiler related book and videos3) Guide by college sir & Industry Guide4) find the problem and solution and solution
6Ambica iron work opp. Agro pettrol pump, bombay road, surat. DATENAME OF INDUSTRYPROCESSPROBLEMAmbica iron work opp. Agro pettrol pump, bombay road, surat.Manufacturer of Agriculture EquipmentsNo problemIkon industries 28, maruti industrial estate, behind solapur compound, rod no.6 suratManufacturing of Sheet Metal Parts & Fabrication WorkHetex industries, palsana suratIt Manufacture BoilersVasundhra industries near railway crossing lane a.k. road, surat.Dyeing & printingIt Creates Heat Loss & Steam Loss Of Boiler
7INTRODUCTIONBoiler is a closed vessel in which the heat produced by the combustion of fuel is transferred to water for its conversion into steam at the desired temperature and pressure.Broadly speaking, a boiler is a device used for generating :-Steam for power generationHot water for heating purpose
8STEAM POWER PLANTmechanical power is produced by a heat engine that transforms thermal energy (from combustion of a fuel) into rotational energyHeat (generated in the furnace) is transmitted to the boiler where water forced into the boiler by the feed pump is converted into steam
9Primary requirements of Boiler The primary requirements of steam generators or boilers are:The water must be contained safelyThe steam must be delivered safely in desired conditions as regards its pressure, temperature, quality and required rate
10Factors Affecting the Choice (selection) of a Boiler The selection of type and size of a steam boiler depends upon the following factors:The power required and the working pressureGeographical position of the plantAvailability of fuelSupply and quality of feed waterThe probable load factorSpace availableLabour availableAdaptability to the type of furnace and stokerSteam pressure and superheat desiredNature and intensity of draught
11CLASSIFICATION OF BOILERS The Boilers may be classified as under:Horizontal boiler, vertical or inclined boilersFire tube and water tube boilersExternally fired and internally fired boilersForced circulation and natural circulation boilersHigh, medium and low pressure boilersStationary boiler and portable boilerSingle tube boilers and multi tube boilers
12Boiler Accessories Feed pump Injector Economiser Air pre-heater SuperheaterSteam separator
13Feed pumpFunction:Its is a pump which is used to deliver feed water to the boiler.The appliances in common use for delivering the feed-water into the steam boilers are:Reciprocating pumpRotary pump
14InjectorFunction:The function of an injector is to feed water into the boiler. It is also used where the space is not available for the installation of a feed pump
15EconomiserFunction:An economiser is a device in which the waste heat of the flue gases is utilised for heating the feed water.Economiser are of two types :Independent type, andIntegral type
16Air prehaeter Function: The function of the air pre-heater is to increase the temperature of air before it enters the furnance. It is generally placed after the economiser.
17More pressure produces in boiler causes heat loss & fuel loss PROBLEM DEFINATIONMore pressure produces in boiler causes heat loss & fuel lossThis industry has two types of boiler :Thermo packSteam boilerThermo pack is oil fired boiler to produce steam from water. Other boiler produces steam using coal is knows as coal fired boiler.KABUTEX PROCESSORS industrialdifferent process taking place in the industry along with boiler for which we have defined problem (IDP).
18During our visit to the industry and discussion with b oiler operator about the problem regarding heat recovery and saving of the fuel. We come to know that they are producing more pressure of steam than required for the process. Which finally loss of heat and fuel. We explain the same analysis for pressure to them .they agree with our analysis, which gives us boost to solve their problem. More pressure of steam producing loss of cost of the industry. Which can be saved and finally per year it comes to lot of energy saving and cost saving to this industry. We successes to explain the same to the industry management, they agree to adopt our solution mentioned in our following topic.
19Reduce the heat loss of boiler: SOLUTION OF PROBLEMReduce the heat loss of boiler:Boilers are used by many manufacturers to provide steam and hot water for process use via heat exchange, directly into product, or for cleaning purposes. Boilers use large amounts of water and energy so efficient operation can provide significant savings. Often the efficient use of water in boilers leads to a reduction in energy and vice versa. This fact sheet provides a list of opportunities to assist manufacturers in the more efficient operation of boilers.
21Feed water is held in the desecrator (1) tank to help remove dissolved oxygen and is then treated (2) prior to entering the boiler (4). There are two types of boilers - water tube and fire tube. Water tube boilers heat water in tubes and the hot combustion gases are contained in the space around the tubes. Fire tube boilers on the other hand have hot combustion gases contained inside tubes and the water is circulated around these. An economizer (3) pre-heats feed water using the flue gases from the boiler’s chimney. The water is heated in the boiler (4) to produce hot water and/or steam that can be used directly in the process or sent to a heat-exchanger (5). The heat-exchanger transfers the heat from the circulating boiler water to another media such as the product, as indirect process use. Any condensate (6) (steam that has condensed) is captured and returned to the desecrator for reuse. Because the buildup of contaminants in the circulating water can cause biological growth, corrosion and scale, a portion of the circulating water is blown down (7)
22REFERENCES 1) A Text Of Thermal Engineering; R. S. KHURMI, J. K. GUPTA 2) Energy Hand Book, Second Edition, Von Nostrand Reinhold Company - Robert L.Loftness3 )Industrial Boilers, Longman Scientific Technical 19994)5)6)7)8)9)10)11)12)13)15)