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Clinker cooler efficiency calculation

mechanical exergy of air and clinker traversing the cooler can be neglected, it constitutes 0.44 % of the overall exergy input. The coefficient of exergy efficiency of the cooler (Fig. 3) remains lower than 50% whereas the energy efficiency calculated for a similar system is about 85 % [15]

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  • CHAPTER IV RESULTS & DISCUSSIONS - UM

    CHAPTER IV RESULTS & DISCUSSIONS - UM

    The energy efficiency of the clinker cooler: η. cooler,I = Q̇. pk +Q̇. pc +Q̇. oc +Q̇. exh Q̇. ic +Q̇. ca = 423.2. kJ kg.ck +296.6 . kJ kg.ck +82.8 . kJ kg.ck +337.4 . kJ kg.ck 1351.5 . kJ kg.ck +51.5 . kJ kg.ck = 81.3% (4.7) The energy recovery efficiency of the clinker cooler: η. recovery, cooler = Q ̇. r. Q̇. ic +Q̇. ca = Q. pk +Q. pc. Q̇. ic +Q̇. ca = 423.2. kJ kg.ck +296.6. kJ kg.ck. 1351.5. kJ kg.ck +51.5. kJ

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  • Latest Developments in High Efficency Clinker Cooling

    Latest Developments in High Efficency Clinker Cooling

    Grate Cooler Bed height 950 mm 600 mm Clinker retention Time @ 45 t/d/m 42,6 min 26,9 min Power consumption 4,89 kWh/t clinker 4 kWh/t clinker Cooler Efficiency 77,8 % 73,9 % 8

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  • PERFORMANCE EVALUATION OF A GRATE COOLER IN A

    PERFORMANCE EVALUATION OF A GRATE COOLER IN A

    The specific water flow [kg/kg. clinker] = Net Water Flow [kg/hr] / Total Clinker [kg/hr] 3.1.2 Cooler Output The clinker output from the cooler is expected to be 1 kg provided no loss in mass. 3.1.2.1 Excess Air The cooler excess air was found by measuring the temperature and static pressure at cooler at cooler ESP stack

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  • (PDF) Heat Exchange Modeling of a Grate Clinker Cooler and

    (PDF) Heat Exchange Modeling of a Grate Clinker Cooler and

    The scaled down cooler was 15% higher than the existing cooler in terms of recoverable energy and 10% high in terms of energy efficiency. Keywords: Clinker Cooler, Computational Fluid Dynamics

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  • (PDF) Energy and Exergy Analysis of Clinker Cooler in the

    (PDF) Energy and Exergy Analysis of Clinker Cooler in the

    Dec 31, 2018 The essential function s of the clinker cooler system in ... it is possible to calculate the clinker temperature at any point ... The efficiency of energy is the ratio of the output energy to the

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  • Formulas kiln - SlideShare

    Formulas kiln - SlideShare

    Jul 22, 2010 Thermal efficiency of cooler = E A-B X 100 E= A A = Heat loss of clinker leaving the kiln B = Heat loss of the clinker cooler 3250 (347 – K ) Secondary Air Temperature = t = (X.n) K = Heat loss of the cooler , Kcal/Kg clinker X = Specific Heat consumption of the kiln , Kcal / Kg clinker n = Excess Air number = 1.1 Cooler fans designed for Specific Volume of 3 – 3.15 st.m^3/Kg clinker 45. Cooling of

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  • Cooler losses - Page 1 of 1

    Cooler losses - Page 1 of 1

    Apr 02, 2009 Thank you for your reply. there are total loss, loss based on VDZ and standard cooler loss for ambient and deg C. Out of these losses which one to include in the calculation for the Cooler efficiency and Recuperation Efficiency. Regards. sanjay . Reply. Page 1 of 1 1

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  • CalPortland Invests for energy efficiency

    CalPortland Invests for energy efficiency

    New clinker cooler • The H2-QC4 clinker cooler was replaced in May of 2016, the new cooler has both thermal and electrical efficiency savings • The new cooler is a FLS cross bar cooler • The existing 7 cooler fans were constant speed fans using damper controls for flow control • The new installation uses 7 cooler fans with Toshiba

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  • Assessment of energy and exergy efficiencies of a grate

    Assessment of energy and exergy efficiencies of a grate

    Oct 01, 2012 Fig. 5 also shows that the exergy efficiency, as well as the exergy recovery efficiency of the grate clinker cooler increases with the increasing mass flow rate. For every 5% increment in mass flow rate of cooling air, the clinker cooler experiences roughly 1.2% rise in energy efficiency and 1.9% rise in energy recovery efficiency

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  • Modeling of the Thermal Efficiency of a Whole Cement

    Modeling of the Thermal Efficiency of a Whole Cement

    Measurements also confirmed that its clinker output increased from 5799 MT/D to 5968 MT/D, whereas the heat consumption of clinker was reduced from 3286.98 kJ/kg cl to 3252.41 kJ/kg cl; all of which shows that the thermal efficiency model plays a positive role in improving the thermal efficiency of the cement production line

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  • Stepping up cooler efficiency - International Cement Review

    Stepping up cooler efficiency - International Cement Review

    Mar 08, 2021 A perfect cooler can cool clinker as well as improve the temperature of the tertiary and secondary air to achieve efficient fuel burning, which helps the kiln and calciner reduce heat consumption. High cooler heat recovery efficiency can also improve

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  • Feature: etrofitting Process optimisation and Retrofiting

    Feature: etrofitting Process optimisation and Retrofiting

    across the clinker cooler system in order to ascertain the present thermal efficiency of the clinker cooler system and cooler losses. Details of heat balance worked out for clinker cooler is given in Table 2. Following are the observation based on process measurements: • Cooling input air measured is 3.13 Nm3/kg clk (4.05 kg/kg clk)

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  • Clinker Coolers | Heat Transfer | Building Engineering

    Clinker Coolers | Heat Transfer | Building Engineering

    *Thermal Efficiency of the cooler can be given as: Control of Grate Coolers Constant air through the clinker bed in terms of air per unit area of cooler and per unit mass of clinker. Negative pressure in the kiln hood to ensure proper supply of secondary and tertiary

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  • Clinkerization - Cement Plant Optimization

    Clinkerization - Cement Plant Optimization

    Cooler. Clinker cooler serves two main objective of cooling clinker from temperature of about 1350 0C to the temperature (65-150 0C) where it can be handled by conveyors like pan conveyors, chain, Elevators etc. and heat recovery from hot clinker coming out of kiln. A huge development has happened in clinker coolers designs and types as well

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  • Latest trends in clinker cooling - Cement Lime Gypsum

    Latest trends in clinker cooling - Cement Lime Gypsum

    It discusses the important parameters determining the efficiency of a clinker cooler and shows how the solutions and market shares of the individual plant engineers differ. 1 Introduction When cooler vendors bring a modified grate cooler onto the market, they like to present it as a new cooler generation

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  • IMPROVING THERMAL AND ELECTRIC ENERGY

    IMPROVING THERMAL AND ELECTRIC ENERGY

    Improving Thermal and Electric Energy Efficiency at Cement Plants: International Best Practice iii LIST OF FIGURES Figure 1: Cement Production Process Flow Schematic and Typical Energy Efficiency Measures ..... 2 Figure 2: Rotary Cement Kiln (Dry Process with Cyclonic Preheaters) ..... 4 Figure 3: Schematic Depiction of Control Points and Parameters in a Kiln System Control and Management

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  • WASTE HEAT RECOVERY SYSTEM (WHRS) FOR CEMENT

    WASTE HEAT RECOVERY SYSTEM (WHRS) FOR CEMENT

    Clinker, 1350 C Pre-heater exhaust 275 C C Raw Material, 276 t/h Cooler CONTROL VOLUME 270 C Clinker,167 t/h 115 C Rotary Kiln, ϕ 4.7m-74m Coal, 8.0 t/h Hot Air, 300~320 C Ambient Temp. 35 C Dust, 0.15 t/h 340 C Cooling air 30~35 C Pre-heater group Kiln System Cooling air Coal Pre-heater exhaust Hot air-cooler Dust losses

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  • Clinker Cooling Technology | Claudius Peters

    Clinker Cooling Technology | Claudius Peters

    Clinker Coolers. When producing cement, the clinker cooler plays a decisive role downstream of the clinker production pyro process. A maximum of the amount of heat extracted from the clinker during the cooling process should be retained in the overall process – represented by the Cooler Efficiency

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  • Parametric Studies of Cement Production Processes

    Parametric Studies of Cement Production Processes

    In their calculations, clinker burning efficiency was 52.07% and cooler efficiency was 47.75%. In their recently published paper, Rahman et al. [ 35 ] pointed out four commercial software packages, namely, Aspen Plus, Aspen HYSYS, ANSYS Fluent, and CHEMCAD, as the commonly used computer-aided modelling and simulation tools in cement

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  • Matthias Mersmann, KHD Humboldt Wedag, Germany

    Matthias Mersmann, KHD Humboldt Wedag, Germany

    The new cooler combines the best solutions that the development team has found for each of the two fun-damental, mutually interacting functions a clinker cooler has to accomplish, explained below: • Clinker conveying - based on the 'Walking floor' prin-ciple. • Aeration - controlled by s

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