Waste Heat Reduction and Recovery Options for Metals Industry

Thekdi, Arvind; Belt, Cynthia

doi:10.1002/9781118061886.ch2

Cited by 3 publications

(1 citation statement)

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“…The use of excess heat may result in decreased energy demand, reduced CO2 emissions and economic gains and, furthermore, improved energy efficiency resulting from excess heat recovery is attractive from a resource use perspective. [7] A number of district heating (DH) systems in Sweden accept industrial excess heat as a part of their fuel mix and in 2011 excess heat accounted for 7.2% of the heat deliveries in the Swedish DH networks [8; 9]. Several research studies investigate excess heat recovery (both thermal applications and heat driven electricity generation) and heat storage technologies [10][11][12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Industrial excess heat use: Systems analysis and CO2 emissions reduction

Viklund¹,

Karlsson²

2015

Applied Energy

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The adopted energy efficiency directive stresses the use of excess heat as a way to reach the EU target of primary energy use. Use of industrial excess heat may result in decreased energy demand, CO2 emissions reduction, and economic gains. In this study, an energy systems analysis is performed with the aim of investigating how excess heat should be used, and the impact on CO2 emissions. The manner in which the heat is recovered will affect the system. The influence of excess heat recovery and the trade-off between heat recovery for heating or cooling applications and electricity production has been investigated using the energy systems modeling tool reMIND. The model has been optimized by minimizing the system cost. The results show that it is favorable to recover the available excess heat in all the investigated energy market scenarios, and that heat driven electricity production is not a part of the optimal solution. The trade-off between use of recovered excess heat in the heating or cooling system depends on the energy market prices and the type of heat production. The introduction of excess heat reduces the CO2 emissions in the system for all the studied energy market scenarios.

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Section: Introductionmentioning

confidence: 99%

Industrial excess heat use: Systems analysis and CO2 emissions reduction

Viklund¹,

Karlsson²

2015

Applied Energy

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Technologies for utilization of industrial excess heat: Potentials for energy recovery and CO2 emission reduction

Viklund

Johansson

2014

Energy Conversion and Management

112

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Industrial excess heat is a large untapped resource, for which there is potential for external use, which would create benefits for industry and society. Use of excess heat can provide a way to reduce the use of primary energy and to contribute to global CO 2 mitigation. The aim of this paper is to present different measures for the recovery and utilization of industrial excess heat and to investigate how the development of the future energy market can affect which heat utilization measure would contribute the most to global CO 2 emissions mitigation. Excess heat recovery is put into a context by applying some of the excess heat recovery measures to the untapped excess heat potential in Gävleborg County in Sweden. Two different cases for excess heat recovery are studied: heat delivery to a district heating system and heat-driven electricity generation. To investigate the impact of excess heat recovery on global CO 2 emissions, six consistent future energy market scenarios were used. Approximately 0.8 TWh/year of industrial excess heat in Gävleborg County is not used today. The results show that with the proposed recovery measures approximately 91 GWh/year of district heating, or 25 GWh/year of electricity, could be supplied from this heat. Electricity generation would result in reduced global CO 2 emissions in all of the analyzed scenarios, while heat delivery to a DH system based on combined heat and power production from biomass would result in increased global CO 2 emissions when the CO 2 emission charge is low.

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Thermodynamic Analysis of ORC to Recover waste Heat of Jacket Cooling Water in Diesel Engine

Lim¹,

Lee²

2018

JFMSE

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Waste Heat Reduction and Recovery Options for Metals Industry

Cited by 3 publications

References 0 publications

Industrial excess heat use: Systems analysis and CO2 emissions reduction

Industrial excess heat use: Systems analysis and CO2 emissions reduction

Technologies for utilization of industrial excess heat: Potentials for energy recovery and CO2 emission reduction

Thermodynamic Analysis of ORC to Recover waste Heat of Jacket Cooling Water in Diesel Engine

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