A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
WASTE HEAT RECOVERY OF BYPASS GASSES EXTRACTED FROM CEMENT INDUSTRY
Today, energy management is the main target of most industries due to the shortage innonrenewable energy resources. In this context, heat of waste streams is utilized to decreasefuel cost and increase energy efficiency.Since cement industry is considered one of the highest energy consuming industries in Egypt,thus any waste heat recovery will have a great effect on the industry energy cost. In thepresent work an actual cement plant was studied where all available waste heat streams werechecked and streams with the highest energy content were selected and used as energysources. Waste heat recovery process was then designed with the aim of reaching the mostefficient method for heat extraction.The utilization of the extracted heat in power generation, pet-coke and RDF drying wasconsidered.Results showed that using waste heat to generate steam to be used in steam turbines resultedin a decrease in cement production cost in addition to the production of enough energy to beused in plant extension or any other project.A second proposal was the use of the waste heat in heating fresh air to be used in drying petcoke.Pet-coke is considered the main cement industry fuel. Pet-coke is originally dried usinghot gases produced by a hot gas generator“HGG” which uses heavy fuel oil. The generator faces a lot of operation and maintenanceproblems.Finally the waste heat was used to dry Refused Derived Fuel “RDF” which is considered themain used Alternative Fuel “AF” and contains a considerably high moisture contentespecially in winter.A process was designed for each scenario and an economic study was presented to evaluatethe needed capital cost, operating cost and pay-back period.
WASTE HEAT RECOVERY OF BYPASS GASSES EXTRACTED FROM CEMENT INDUSTRY
Today, energy management is the main target of most industries due to the shortage innonrenewable energy resources. In this context, heat of waste streams is utilized to decreasefuel cost and increase energy efficiency.Since cement industry is considered one of the highest energy consuming industries in Egypt,thus any waste heat recovery will have a great effect on the industry energy cost. In thepresent work an actual cement plant was studied where all available waste heat streams werechecked and streams with the highest energy content were selected and used as energysources. Waste heat recovery process was then designed with the aim of reaching the mostefficient method for heat extraction.The utilization of the extracted heat in power generation, pet-coke and RDF drying wasconsidered.Results showed that using waste heat to generate steam to be used in steam turbines resultedin a decrease in cement production cost in addition to the production of enough energy to beused in plant extension or any other project.A second proposal was the use of the waste heat in heating fresh air to be used in drying petcoke.Pet-coke is considered the main cement industry fuel. Pet-coke is originally dried usinghot gases produced by a hot gas generator“HGG” which uses heavy fuel oil. The generator faces a lot of operation and maintenanceproblems.Finally the waste heat was used to dry Refused Derived Fuel “RDF” which is considered themain used Alternative Fuel “AF” and contains a considerably high moisture contentespecially in winter.A process was designed for each scenario and an economic study was presented to evaluatethe needed capital cost, operating cost and pay-back period.
WASTE HEAT RECOVERY OF BYPASS GASSES EXTRACTED FROM CEMENT INDUSTRY
ابراهيم, هبة الله محمد (author)
2021-02-21
CU Theses; 2021
Article (Journal)
Electronic Resource
English
DDC:
690
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