High-temperature PCM-based thermal energy storage for industrial furnaces installed in energy-intensive industries

Acevedo, Luis; Ferreira, Víctor J.; García-Armingol, Tatiana; López-Sabirón, Ana M.; Ferreira, Germán

doi:10.1016/j.energy.2019.02.118

Cited by 75 publications

(27 citation statements)

References 31 publications

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“…• For the heating furnace, improvement of the furnace lining (refractories) is the solution with the most profitable, whereas integration of a PCM-based energy recovery system is the least profitable. • For the melting system, the most convenient solution is the implementation of a PCM-based energy system partially due to the high energy content of exhaust gases [26]. Improvement of refractories would be the second option for the selected indicators.…”

Section: Heatingmentioning

confidence: 99%

Multicriteria Analysis for Retrofitting of Natural Gas Melting and Heating Furnaces for Sustainable Manufacturing and Industry 4.0

Arnal

Díaz-Ramírez

Acevedo

et al. 2019

Journal of Energy Resources Technology

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Different retrofitting measures can be implemented at different levels of the industrial furnace, such as refractory layers, energy recovery solutions, new burners and fuel types, and monitoring and control systems. However, there is a high level of uncertainty about the possible implications of integrating new technologies, not only in the furnace but also on the upstream and downstream processes. In this regard, there is a lack of holistic approaches to design the optimal system configurations under a multicriteria perspective, especially when innovative technologies and multi-sectorial processes are involved. The present work proposes a holistic approach to natural gas melting and heating furnaces in energy-intensive industries. A multicriteria analysis, based on criteria and subcriteria, is applied to select the most profitable retrofitting solution using the analytic hierarchy process and stakeholder expertise. The methodology is based on technical indicators, i.e., life cycle assessment, life cycle cost, and thermoeconomic analysis, for evaluating the current state of existing natural gas furnaces. Once the current state is characterized, the methodology determines the potential of efficiency improvement, environmental impact reduction, and cost-savings caused mainly by the implementation of new retrofitting solutions including new refractories, new burner concepts (co-firing), and innovative energy recovery solutions based on phase change materials. Therefore, this methodology can be considered as the first stage that guarantees technical, environmental, and economic feasibility in evaluating the effects of new technologies on the overall system performance.

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Section: Heatingmentioning

confidence: 99%

Multicriteria Analysis for Retrofitting of Natural Gas Melting and Heating Furnaces for Sustainable Manufacturing and Industry 4.0

Arnal

Díaz-Ramírez

Acevedo

et al. 2019

Journal of Energy Resources Technology

Self Cite

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“…Phase‐change materials (PCMs) as promising thermal storage materials have been attracting attention owing to their high latent heat, low phase‐change temperature, negligible supercooling and chemical stability . PCMs can be employed in building energy storage systems, waste heat recovery systems, thermo‐regulating fibres, smart textiles and solar thermal energy conversion . Among the various types of PCMs, polyethylene glycol (PEG) as the most promising solid/liquid PCM has been extensively investigated owing to its high phase transition enthalpy, low vapour pressure, good chemical and thermal stability, suitable phase‐change temperature and non‐toxicity .…”

Section: Introductionmentioning

confidence: 99%

Thermally Conductive and Shape‐Stabilized Polyethylene Glycol/Carbon Foam Phase‐Change Composites for Thermal Energy Storage

et al. 2020

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Phase‐change materials (PCMs) have been widely investigated as candidates for thermal energy storage and solar thermal energy conversion. However, low thermal conductivity and poor shape stability during phase transition processes are detrimental to their practical applications. In this study, we designed composite PCMs based on carbon foam (CF) via the vacuum impregnation method to overcome these problems. CF with 3D interconnected microporous structures and good compressive strength was fabricated from phenolic resin (PF) using a combined process of carbonization and sacrificial template techniques. The developer material is considered a promising support material for PCMs. The as‐prepared polyethylene glycol/CF composite (PCC) exhibited a high energy‐storage density with a melting enthalpy of 135.7 J/g, and the thermal conductivity was enhanced by 109.8% compared to that of pure polyethylene glycol. In addition, the PCC showed excellent thermal stability and leakage‐proof performance after 100 heating/cooling cycles and good compressive strength. Because of the simple preparation process and low cost, PCC is a promising material for various thermal energy storage applications, especially in building energy storage systems.

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“…Rao et al [11][12][13][14][15] investigated the heat convection of the air on solid surfaces. Luo et al [16][17][18][19][20][21][22][23] probed deep into the materials and process of thermal storage, and obtained the temperature distribution inside these materials.…”

Section: Introductionmentioning

confidence: 99%

Thermal Storage and Release Features of Electric Thermal Storage Heating Systems with Solid Storage Material

Sun¹,

Feng²,

Ma³

et al. 2019

IJHT

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This paper carries out simulation and tests on an electric thermal storage heating system with solid storage material (SS-ETSHS), and discusses the law of thermal storage and release in system operation, aiming to reduce the energy consumption and enhance the reliability and safety of the system. Based on the lumped parameter method, a mathematical model of the SS-ETSHS was established, and then solved by Matlab programming. The simulation results were used to analyze the change laws of the temperature of the thermal storage structure (TSS), circulating air temperature, and water temperature of the heat exchanger. The simulation results were proved valid and accurate through actual engineering tests. In addition, the patterns of temperature variation in different parts of the system were investigated under quantity adjustment and quality adjustment. The results show that the simulated results deviated from the measured results by 7.9% at the maximum, suggesting that our model and program are suitable for simulating the SS-ETSHS; in both adjustment modes, the residual heat of the TSS could not be released in the thermal release phase but built up, severely suppressing the thermal efficiency of the system. The research results are of great significance to the safe and reliable operation of the SS-ETSHS, shedding light on the optimization of the system. Keywords:electric thermal storage heating systems with solid storage material (SS-ETSHSs), lumped parameter method, features of thermal storage and release, quantity adjustment, quality adjustment

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High-temperature PCM-based thermal energy storage for industrial furnaces installed in energy-intensive industries

Cited by 75 publications

References 31 publications

Multicriteria Analysis for Retrofitting of Natural Gas Melting and Heating Furnaces for Sustainable Manufacturing and Industry 4.0

Multicriteria Analysis for Retrofitting of Natural Gas Melting and Heating Furnaces for Sustainable Manufacturing and Industry 4.0

Thermally Conductive and Shape‐Stabilized Polyethylene Glycol/Carbon Foam Phase‐Change Composites for Thermal Energy Storage

Thermal Storage and Release Features of Electric Thermal Storage Heating Systems with Solid Storage Material

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