Waste heat recovery technologies and applications

Jouhara, Hussam; Khordehgah, Navid; Almahmoud, Sulaiman; Delpech, Bertrand; Chauhan, Amisha; Tassou, S.A.

doi:10.1016/j.tsep.2018.04.017

Cited by 743 publications

(325 citation statements)

References 72 publications

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“…are the superheater and evaporator efficiencies, respectively. The HRSG overall efficiency was considered as 0.85 in this article . Hence, the superheater, evaporator and economizer efficiencies were considered as 0.92, 0.95, and 0.97, respectively.…”

Section: Model Constructionmentioning

confidence: 99%

Performance and economic investigation of a combined phosphoric acid fuel cell/organic Rankine cycle/electrolyzer system for sulfuric acid production; Energy‐based organic fluid selection

Sadeghi

Askari

2020

Int J Energy Res

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SUMMARY In this article, the application of a hybrid phosphoric acid fuel cell and organic Rankine cycle (PAFC/ORC) system was thermo‐economically investigated for sulfuric acid production in Sarcheshmeh copper complex (SCC); the second largest copper deposit worldwide. The electricity that is produced by the system is consumed by electrolyzer to produce the hydrogen and sulfuric acid. Two scenarios were considered for applying the PAFC thermal energy as thermal source of the ORC to produce further power. The performance of the system was investigated considering various important parameters such as organic fluid type, PAFC current density (IPAFC), fuel & air consumption factors as well as the ORC turbine inlet pressure (Pi, ORC). The unit cost of sulfuric acid and the hybrid system simple payback period were obtained as 0.0215$/kg and 3.65 years, respectively.

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Section: Model Constructionmentioning

confidence: 99%

Performance and economic investigation of a combined phosphoric acid fuel cell/organic Rankine cycle/electrolyzer system for sulfuric acid production; Energy‐based organic fluid selection

Sadeghi

Askari

2020

Int J Energy Res

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“…Recovery and utilization of industrial excess heat can be achieved through various heat recovery technologies (see, eg, Jouhara et al 32 for a comprehensive review of commonly used, state-of-the-art technologies with an evaluation of their operation and performance). It is worth noting that many technologies have a heat demand at constant temperature (eg, for evaporation in a heat pump or organic Rankine cycle), while other applications are better suited for matching with a varying temperature heat supply (eg, district heating).…”

Section: Novelty Statementmentioning

confidence: 99%

Characterization and visualization of industrial excess heat for different levels of on‐site process heat recovery

2019

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Summary Increased utilization of industrial excess heat (or waste heat) can reduce primary energy use and thereby contribute to reaching energy and climate targets. To estimate the potential availability of industrial excess heat, it is necessary to capture the significant heterogeneity of the industrial sector. This requires the development of methodologies based on case study assessments of individual plants, adopting a systematic approach and consistent assumptions. Since the recovery of excess heat for power generation or off‐site delivery competes with internal recovery for on‐site fuel savings, a well‐founded approach should enable a comparison of the excess heat availability at different levels of internal process heat recovery. To determine the best solution for excess heat utilization for a given process, there is a need for easy screening of various options, while considering that some techniques require heat at a constant temperature while others can exploit a nonisothermal heat supply. This paper presents a new tool, the excess heat temperature (XHT) signature, for exploring the potential heat availability and trade‐offs for excess heat utilization by weighting the heat according to predefined temperature levels and ranges. A set of reference conditions are defined, and an energy targeting approach is proposed that can be used for characterizing the Theoretical XHT signature, which represents the unavoidable excess heat that can be recovered after maximized internal process heat recovery and ideal integration of a power generation steam cycle. The Theoretical XHT signature is contrasted with the Process Cooling XHT signature, which represents the excess heat that can be recovered given the current design and operation of the process and its utility system. The XHT signature curves provide a consistent representation of the excess heat, enabling comparison between sites and aggregation of results from different case studies.

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“…The introduction of different renewable energy technologies and the elimination of the use of fossil fuels are critical in this regard. One of the important factors considered in energy production is the regeneration of the huge amount of thermal energy contained in waste heat and the utilization of renewable heat . The best established large‐scale technology for the conversion of waste or renewable heat to power (besides steam turbines) is based on the Organic Rankine Cycle (ORC) .…”

Section: Introductionmentioning

confidence: 99%

Energy Applications of Magnetocaloric Materials

Kitanovski

2020

Advanced Energy Materials

349

156

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The need for energy‐efficient and environmentally friendly refrigeration, heat pumping, air conditioning, and thermal energy harvesting systems is currently more urgent than ever. Magnetocaloric energy conversion is among the best available alternatives for achieving these technological goals and has been the subject of substantial basic and applied research over the last two decades. The subject is strongly interdisciplinary, requiring proper understanding and efficient integration of knowledge in different specialized fields. This review article presents a historical and up‐to‐date account of the energy‐related applications of magnetocaloric materials and information about their processing and magnetic fields, thermodynamics, heat transfer, and other relevant characteristics. The article also discusses the conceptual design of magnetocaloric refrigeration and power generation systems and some guidelines for future research in the field.

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Waste heat recovery technologies and applications

Cited by 743 publications

References 72 publications

Performance and economic investigation of a combined phosphoric acid fuel cell/organic Rankine cycle/electrolyzer system for sulfuric acid production; Energy‐based organic fluid selection

Performance and economic investigation of a combined phosphoric acid fuel cell/organic Rankine cycle/electrolyzer system for sulfuric acid production; Energy‐based organic fluid selection

Characterization and visualization of industrial excess heat for different levels of on‐site process heat recovery

Energy Applications of Magnetocaloric Materials

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