diagram of energy balance of a cement kiln

Energy balance and cogeneration for a cement plant The cement industry is an energy intensive industry consuming about 4 GJ per tonne of cement produced A ther diagram of energy balance of a cement kiln

diagram of energy balance of a cement kiln

  • Energy balance and cogeneration for a cement plant

    The cement industry is an energy intensive industry consuming about 4 GJ per tonne of cement produced A thermodynamic analysis for cogeneration using the waste heat streams is not easily available Data from a working 1 Mt per annum plant in India is used to obtain an energy balance for the system and a Sankey diagram is drawnBypass dust leaving the kiln system requires separate reporting: line022; CKD recycling remains within the mass balance Thus, it does not need additional reporting The mass flow of CKD Cement kiln dust leaving the kiln system (and crossing the red boundary in the diagram) needs to be accounted for additionally: line023Mass Balance of a Kiln System Cement CO2 ProtocolIn the diagram above of a precalciner kiln, raw meal passes down the preheater tower while hot gases rise up, heating the raw meal At 'A,' the raw meal largely decarbonates; at 'B,' the temperature is 1000 C 1200 C and intermediate compounds are formingThe cement kiln

  • Cement Sector Bureau of Energy Efficiency

    54 Apportionment of SubSector Target of Energy Saving in Cement Sector 9 541 Apportionment of Target of Energy Saving in individual Cement plant 9 6122 Normalization due to kiln cold startup and Hot Stop caused due to external factor 12 6123 Definition of Cold Startup and Hot Stop of Kiln 12 ExCCGT Energy balance diagram 51Energy and exergy analysis of the kiln Energy balance for the kiln is defined that energy input is equal to energy output for the steady state operation Total energy input to the kiln consists of energy entering by raw materials, electricity consumed and the combustion of pulverized lignite coalAnalysis of the parameters affecting energy consumptionCement production has been one of the most energy intensive industries in the world In order to produce clinker, rotary kilns are widely used in cement plants This paper deals with the energy audit analysis of a dry type rotary kiln system working(PDF) Energy auditing and recovery for dry type cement

  • 116 Portland Cement Manufacturing

    116 Portland Cement Manufacturing 1161 Process Description17 Portland cement is a fine powder, gray or white in color, that consists of a mixture of hydraulic cement materials comprising primarily calcium silicates, aluminates and aluminoferrites More than 30 raw materials are known to be used in the manufacture of portland cement, and theseTotal energy consumption in the US cement industry exhibited a decline between 1970 and the early 1990s, before showing an annual average increase of 45% between 1992 and Some of the decrease in energy consumption through the early 1990s can be attributed to the conversion from the wet process of clinker making to the dry processCO2 Emissions Profile of the US Cement Industrythe kiln product Energy is required to cause this endothermic reaction to occur, but there are other energy components to the overall energy demand of the kiln as shown in Slide 16 There is the energy required to dry the mud, as well as losses of energy as heat from the kiln shell, with the hot lime product, and with the flue gases exiting22 Lime Kiln Principles And Operations

  • WASTE HEAT RECOVERY POWER PLANTS IN CEMENT

    energy, which otherwise, went unarrested/ unused in the energy intensive industries, hence, are being explored 12 In cement industry, energy corresponds to the major cost head of operating expenses An appreciable amount of energy can be conserved by optimizing the plant operation, and by recovering waste heat from the preheater and cooler54 Apportionment of SubSector Target of Energy Saving in Cement Sector 9 541 Apportionment of Target of Energy Saving in individual Cement plant 9 6122 Normalization due to kiln cold startup and Hot Stop caused due to external factor 12 6123 Definition of Cold Startup and Hot Stop of Kiln 12 ExCCGT Energy balance diagram 127Cement Sector Bureau of Energy EfficiencyFlow diagram of the cement plant operation line 211 The general energy balance can be expressed as, (2) the highest energy losses and waste energy potential emerge in the rotary kiln The energy and exergy results of each part on the production line related to the energy flow are given in Table 2 It is clear from this table thatMathematical modeling of heat recovery from a rotary kiln

  • Analysis of the parameters affecting energy consumption

    Energy and exergy analysis of the kiln Energy balance for the kiln is defined that energy input is equal to energy output for the steady state operation Total energy input to the kiln consists of energy entering by raw materials, electricity consumed and the combustion of pulverized lignite coalA summary for kiln energy balance analysis is presented below: Energy consumption in formation of clinker is calculated to obtain general energy balance of kiln Energy is transferred by heat, mass, work inside the rotary kiln In a diagram shown below, thermal resistance network is presented here to understand the losses through kiln medium 5Energy audit and waste heat recovery from kiln hot shellTotal energy consumption in the US cement industry exhibited a decline between 1970 and the early 1990s, before showing an annual average increase of 45% between 1992 and Some of the decrease in energy consumption through the early 1990s can be attributed to the conversion from the wet process of clinker making to the dry processCO2 Emissions Profile of the US Cement Industry

  • ENVIRONMENTAL IMPACTS OF CEMENT PRODUCTION

    cement industry has been using large quantities of waste fuels or biomass fuels, for more than 15 years The production of cement involves the consumption of large quantities of raw materials, energy, and heat Cement production also results in the release of a significant amount of solid waste materials and gaseous emissionsenergy, which otherwise, went unarrested/ unused in the energy intensive industries, hence, are being explored 12 In cement industry, energy corresponds to the major cost head of operating expenses An appreciable amount of energy can be conserved by optimizing the plant operation, and by recovering waste heat from the preheater and coolerWASTE HEAT RECOVERY POWER PLANTS IN CEMENTFundamentals of Energy Analysis of Dryers Ian C Kemp 11 Introduction Dryingisahighlyenergyintensiveprocess,accountingfor10–20%oftotalindustrial energy use in most developed countries The main reason for this is the need to Assuming negligible leaks, the mass balance is: W gðY out Y inÞ¼W v ¼ W sðX in X1 Fundamentals of Energy Analysis of Dryers WileyVCH

  • (PDF) Analysis of material flow and consumption in cement

    The results show that approximately 248 t, 469 t, and 341 t of materials are required to produce a ton of the product in raw material preparation, clin ker production, and cement grindingI didn't bother to make an English version of the diagram "Forvarmer" means preheater, "Ovn" means kiln and "Fordampning" is evaporation I model the proces (eg material flows up and down) and loop through the process X times, until there is a reasonable balance between input and outputProcess and mass balance in Excel with VBA macrosexample mechanical energy to heat energy, but overall the quantities must balance 42 The Sankey Diagram and its Use The Sankey diagram is very useful tool to represent an entire input and output energy flow in any energy equipment or system such as boiler, fired heaters, furnaces after carrying out energy balance calculation This diagram4 MATERIALAND ENERGY BALANCE

  • Energy audit and waste heat recovery from kiln hot shell

    A summary for kiln energy balance analysis is presented below: Energy consumption in formation of clinker is calculated to obtain general energy balance of kiln Energy is transferred by heat, mass, work inside the rotary kiln In a diagram shown below, thermal resistance network is presented here to understand the losses through kiln medium 5Total energy consumption in the US cement industry exhibited a decline between 1970 and the early 1990s, before showing an annual average increase of 45% between 1992 and Some of the decrease in energy consumption through the early 1990s can be attributed to the conversion from the wet process of clinker making to the dry processCO2 Emissions Profile of the US Cement Industrythe kiln product Energy is required to cause this endothermic reaction to occur, but there are other energy components to the overall energy demand of the kiln as shown in Slide 16 There is the energy required to dry the mud, as well as losses of energy as heat from the kiln shell, with the hot lime product, and with the flue gases exiting22 Lime Kiln Principles And Operations

  • 8 WASTE HEAT RECOVERY Bureau of Energy Efficiency

    Cement kiln (Dry process) 620– 730 Glass melting furnace 1000–1550 Hydrogen plants 650–1000 Solid waste incinerators 650–1000 Fume incinerators 650–1450 TABLE 82 TYPICAL WASTE HEAT TEMPERATURE AT HIGH TEMPERATURE RANGE FROM VARIOUS SOURCES Type of Device Temperature, °C Steam boiler exhausts 230–480 Gas turbine exhausts 370–527cement industry has been using large quantities of waste fuels or biomass fuels, for more than 15 years The production of cement involves the consumption of large quantities of raw materials, energy, and heat Cement production also results in the release of a significant amount of solid waste materials and gaseous emissionsENVIRONMENTAL IMPACTS OF CEMENT PRODUCTIONHeat balance excel sheet detailed calculations Sharing is caring: here is my contribution to cement engineers communityAn excel sheet (MS excel 2003) that can does heat balance for pyro section of cement industryThis sheet is absolutely leagl as it's my personal workHeat balance excel sheet detailed calculations Page 1 of 8

  • 1 Fundamentals of Energy Analysis of Dryers WileyVCH

    Fundamentals of Energy Analysis of Dryers Ian C Kemp 11 Introduction Dryingisahighlyenergyintensiveprocess,accountingfor10–20%oftotalindustrial energy use in most developed countries The main reason for this is the need to Assuming negligible leaks, the mass balance is: W gðY out Y inÞ¼W v ¼ W sðX in XI didn't bother to make an English version of the diagram "Forvarmer" means preheater, "Ovn" means kiln and "Fordampning" is evaporation I model the proces (eg material flows up and down) and loop through the process X times, until there is a reasonable balance between input and outputProcess and mass balance in Excel with VBA macrosEnergy expenditure Other component of energy balance equation Energy nutrients (CHO, fat, protein) broken down in tissue to power muscle contractions and other cell activities Resulted in energy released from body in the form of heat energy (kcal) 1kcal of heat energyEnergy Balance SlideShare