The Experts below are selected from a list of 306 Experts worldwide ranked by ideXlab platform
Un-chul Moon - One of the best experts on this subject based on the ideXlab platform.
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A Practical Multiloop Controller Design for Temperature Control of a TV Glass Furnace
IEEE Transactions on Control Systems Technology, 2007Co-Authors: Un-chul MoonAbstract:This brief presents a practical application of the conventional multiloop control method for the temperature control of a television (TV) Glass Furnace. To control the temperatures of the TV Glass Furnace, two inputs and three outputs are selected as major process variables. With the process experimental data, a multi-input multi-output model is established as a combination of input-output transfer functions in the form of the first-order-plus-dead-time system. Based on the plant models, a multiloop control, which is a combination of cascade and single loops, is used, and stability and robustness are examined with respect to major uncertain model parameters. Practical implementation in a distributed control system showed satisfactory results of the proposed control algorithm for the 150-ton/day-production Furnace.
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Multi-loop control of temperature for TV Glass Furnace
Proceedings of the 39th IEEE Conference on Decision and Control (Cat. No.00CH37187), 2000Co-Authors: Un-chul MoonAbstract:Presents a practical application of the conventional multi-loop control method for the temperature control of a television Glass Furnace. To control the temperature of the TV Glass Furnace, major input-output variables are selected, and simple first-order-plus-dead-time (FOPDT) models are established with the process experimental data. Based on the FOPDT models, a multi-loop control, which is a combination of cascade and single loops, is used. Practical implementation using a distributed control system showed satisfactory results of the proposed control algorithm for the 150-ton/day-production Furnace.
Hongzhou He - One of the best experts on this subject based on the ideXlab platform.
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Design of a flat Glass Furnace waste heat power generation system
Applied Thermal Engineering, 2014Co-Authors: Zhiwei Li, Xiujin He, Yongqing Wang, Bo Zhang, Hongzhou HeAbstract:China is the largest Glass producer in the world. Although the energy consumption of flat Glass production has decreased significantly, from 12.6 MJ/kg in 2006 to 8.5 MJ/kg in 2010 and even lower now, very high energy recovery potential exists. A series of documents encouraging the development of Glass Furnace waste heat power generation systems have been issued by the Chinese government. There are already several waste heat power plants in China. This paper presents a power generation system using the waste heat from a 1200 t/d Glass Furnace. Two energy sources, viz. natural gas and petroleum coke, are studied. The system steam output is 23 t/h, and the power output 5.2 MW. The high sulfur content in the petroleum coke requires large heating surface area of deaerator to prevent acid corrosion, leading to high investment cost and long payback period. The annual power supply is about 31 million kWh, which means that a saving of 12,400 tons of coal equivalent and a reduction of 0.84 MJ energy consumption of per kilogram Glass. The annual reduction of CO2, SO2, NOxand dust are 28,500 tons, 79 tons, 83 tons and 33 tons, respectively. © 2013 Published by Elsevier Ltd.
Zhiwei Li - One of the best experts on this subject based on the ideXlab platform.
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Design of a flat Glass Furnace waste heat power generation system
Applied Thermal Engineering, 2014Co-Authors: Zhiwei Li, Xiujin He, Yongqing Wang, Bo Zhang, Hongzhou HeAbstract:China is the largest Glass producer in the world. Although the energy consumption of flat Glass production has decreased significantly, from 12.6 MJ/kg in 2006 to 8.5 MJ/kg in 2010 and even lower now, very high energy recovery potential exists. A series of documents encouraging the development of Glass Furnace waste heat power generation systems have been issued by the Chinese government. There are already several waste heat power plants in China. This paper presents a power generation system using the waste heat from a 1200 t/d Glass Furnace. Two energy sources, viz. natural gas and petroleum coke, are studied. The system steam output is 23 t/h, and the power output 5.2 MW. The high sulfur content in the petroleum coke requires large heating surface area of deaerator to prevent acid corrosion, leading to high investment cost and long payback period. The annual power supply is about 31 million kWh, which means that a saving of 12,400 tons of coal equivalent and a reduction of 0.84 MJ energy consumption of per kilogram Glass. The annual reduction of CO2, SO2, NOxand dust are 28,500 tons, 79 tons, 83 tons and 33 tons, respectively. © 2013 Published by Elsevier Ltd.
Rangan Banerjee - One of the best experts on this subject based on the ideXlab platform.
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Methodology for indirect determination of air and flue-gas leakage in a typical Glass Furnace in India
Glass Technology: European Journal of Glass Science and Technology Part A, 2013Co-Authors: Vishal Sardeshpande, U. N. Gaitonde, Rangan BanerjeeAbstract:A methodology is proposed for quantification of the air leakage in a typical Glass Furnace in India based on modelled and measured parameters. Fossil fuels (natural gas or heavy fuel oil) are used for Glass melting at high temperature in these Furnaces which are usually equipped with regenerators for waste heat recovery. The combustion chamber is maintained at a mean positive pressure of 0.2 to 1 mm H2O to avoid leakage of cold air into the combustion chamber, but there are leakages due to local interactions, leading to higher fuel consumption. The quantification of air leakage helps in controlling the leakage thus improving fuel economy. The flue gas composition is estimated by mass balance of a Furnace based on stoichiometric reactions for combustion and Glass melting. The quantity of air leakage is estimated based on gaps inside the Furnace wall and the differential pressure. The methodology is used for an industrial Furnace where air leakage of 3.1% of combustion air flow and flue gas leakage of 2.6% of total flue gas flow was estimated. The estimated combustion air flow based on stoichiometric reactions is validated with experimental data.
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performance analysis for Glass Furnace regenerator
Applied Energy, 2011Co-Authors: Vishal Sardeshpande, U. N. Gaitonde, Renil Anthony, Rangan BanerjeeAbstract:Glass manufacturing is an energy intensive process where fossil fuel is used to maintain high temperature (about 1700°C) for Glass melting. Heat recovery from flue gas (1350–1500°C) is usually in the form of combustion air pre-heating (900–1200°C) using a regenerator. Dust from flue gas which is carried over from the Furnace gets deposited in the regenerator storage matrix path. This leads to a deterioration of regenerator efficiency. A regenerator model is developed to estimate the actual performance of the regenerator and to compare it with the target performance. The proposed model is based on mass and energy balance of streams along with heat transfer characteristic equations. The model is illustrated for a 130 TPD (Ton per Day) Furnace regenerator of an industrial Glass plant at Mumbai, India. Model results for the regenerator studied indicate a blockage of 50% on the doghouse side and 22% on the non-doghouse side of the regenerator. The actual performance of the regenerator is found to be 7% lower than its target performance for the doghouse side regenerator. The model developed can also be used in other industrial sectors like steel, chemical etc.
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model based energy benchmarking for Glass Furnace
Energy Conversion and Management, 2007Co-Authors: Vishal Sardeshpande, U. N. Gaitonde, Rangan BanerjeeAbstract:Abstract Energy benchmarking of processes is important for setting energy efficiency targets and planning energy management strategies. Most approaches used for energy benchmarking are based on statistical methods by comparing with a sample of existing plants. This paper presents a model based approach for benchmarking of energy intensive industrial processes and illustrates this approach for industrial Glass Furnaces. A simulation model for a Glass Furnace is developed using mass and energy balances, and heat loss equations for the different zones and empirical equations based on operating practices. The model is checked with field data from end fired industrial Glass Furnaces in India. The simulation model enables calculation of the energy performance of a given Furnace design. The model results show the potential for improvement and the impact of different operating and design preferences on specific energy consumption. A case study for a 100 TPD end fired Furnace is presented. An achievable minimum energy consumption of about 3830 kJ/kg is estimated for this Furnace. The useful heat carried by Glass is about 53% of the heat supplied by the fuel. Actual Furnaces operating at these production scales have a potential for reduction in energy consumption of about 20–25%.
Bo Zhang - One of the best experts on this subject based on the ideXlab platform.
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Design of a flat Glass Furnace waste heat power generation system
Applied Thermal Engineering, 2014Co-Authors: Zhiwei Li, Xiujin He, Yongqing Wang, Bo Zhang, Hongzhou HeAbstract:China is the largest Glass producer in the world. Although the energy consumption of flat Glass production has decreased significantly, from 12.6 MJ/kg in 2006 to 8.5 MJ/kg in 2010 and even lower now, very high energy recovery potential exists. A series of documents encouraging the development of Glass Furnace waste heat power generation systems have been issued by the Chinese government. There are already several waste heat power plants in China. This paper presents a power generation system using the waste heat from a 1200 t/d Glass Furnace. Two energy sources, viz. natural gas and petroleum coke, are studied. The system steam output is 23 t/h, and the power output 5.2 MW. The high sulfur content in the petroleum coke requires large heating surface area of deaerator to prevent acid corrosion, leading to high investment cost and long payback period. The annual power supply is about 31 million kWh, which means that a saving of 12,400 tons of coal equivalent and a reduction of 0.84 MJ energy consumption of per kilogram Glass. The annual reduction of CO2, SO2, NOxand dust are 28,500 tons, 79 tons, 83 tons and 33 tons, respectively. © 2013 Published by Elsevier Ltd.