Industrial waste heat recovery technologies: An economic analysis of heat transformation technologies

Brückner, Sarah; Liu, Selina L.; Miró, Laia; Radspieler, Michael; Cabeza, Luisa F.; Lävemann, E.

doi:10.1016/j.apenergy.2015.01.147

Cited by 452 publications

(172 citation statements)

References 13 publications

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“…Heat storage capacity˘7.5% (combination of latent and sensible heat in a temperature range of 50˝C to 65˝C) Regarding the possible applications of RT58 and taking into account its melting thermal range, the most suitable applications are domestic hot water (DHW) [14] and low temperature industrial waste heat (IWH) recovery [15].…”

Section: Properties Units Valuesmentioning

confidence: 99%

Experimental Evaluation of a Paraffin as Phase Change Material for Thermal Energy Storage in Laboratory Equipment and in a Shell-and-Tube Heat Exchanger

et al. 2016

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Abstract:The thermal behavior of a commercial paraffin with a melting temperature of 58˝C is analyzed as a phase change material (PCM) candidate for industrial waste heat recovery and domestic hot water applications. A full and complete characterization of this PCM is performed based on two different approaches: a laboratory characterization (mass range of milligrams) and an analysis in a pilot plant (mass range of kilograms). In the laboratory characterization, its thermal and cycling stability, its health hazard as well as its phase change thermal range, enthalpy and specific heat are analyzed using a differential scanning calorimeter, thermogravimetric analysis, thermocycling and infrared spectroscopy. Laboratory analyses showed its suitability up to 80˝C and for 1200 cycles. In the pilot plant analysis, its thermal behavior was analyzed in a shell-and-tube heat exchanger under different heat transfer fluid mass flow rates in terms of temperature, power and energy rates. Results from the pilot plant analysis allowed understanding the different methods of heat transfer in real charging and discharging processes as well as the influence of the geometry of the tank on the energy transferred and required time for charging and discharging processes.

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Section: Properties Units Valuesmentioning

confidence: 99%

Experimental Evaluation of a Paraffin as Phase Change Material for Thermal Energy Storage in Laboratory Equipment and in a Shell-and-Tube Heat Exchanger

et al. 2016

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“…Some other industrial by-products such as NaCl [6], bischofite [7], astrakanite and kainite [8] were previously tested both as sensible and latent heat TES materials in a temperature range from 100 to 200°C. Possible applications for this range of temperature are the recovery industrial waste heat [9], solar food processing [10] and solar cooling [11]. Moreover, metal industry wastes as ferrous slags have been previously tested for high temperature applications, showing stable thermal behavior up to 1200°C [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Thermal performance evaluation of bischofite at pilot plant scale

et al. 2015

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Artículo de publicación ISIThe selection of the proper thermal energy storage (TES) material for an application is crucial. On the one hand, these materials should have suitable thermal properties for the operational temperatures range of the systems they are planned to work for, such as thermal stability, high latent heat and high heat capacity. On the other hand, they should be available on the market and at low price. Besides, researchers have to bear in mind the importance of testing TES materials not only at laboratory scale but also at higher scale, since it has been demonstrated that some thermal characteristics are volume-dependant. In the present study, bischofite, a by-product obtained from the non-metallic industry in the North of Chile with desired thermal properties for mid-temperature applications (around 100 degrees C), has been studied. A first analysis was performed in terms of comparing the thermal properties and cost of bischofite with other material previously studied as TES materials in order to evaluate its potential in both latent and sensible phases. Afterwards, a second analysis was experimentally performed in terms of testing bischofite at large-scale (204 kg) in a pilot plant facility. The experimental procedure consisted on several charging processes within two different temperatures ranges: from 50 degrees C to 80 degrees C and from 80 degrees C to 120 degrees C in order to study the behavior of the material in the sensible solid phase and latent phase respectively. The temperature profiles, the power given by the HTF, the energy balance in the storage system and the accumulation energy rate of the bischofite were analyzed. Results of both analysis showed that bischofite has potential as TES material for mid-temperature applications.European Union PIRSES-GA-2013-610692 Spanish government ENE2011-22722 BES-2012-051861 FONDECYT 1120422 CONICYT/FONDAP 15110019 Education Ministry of Chile PMI ANT 1201 ANT 110

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“…Brückner et al [47] report that, assuming an operation time of 2500 h/year, absorption cooling is of little interest for industrial consumers requiring high returns on their investments. However, cooling of internal electric cabinets within a process plant working on a 24/7 basis is a basic process requirement, likely to be interrupted only during protracted production stops or for maintenance.…”

Section: Waste Heat Recovery Optionsmentioning

confidence: 99%

Water-energy and GHG nexus assessment of alternative heat recovery options in industry: A case study on electric steelmaking in Europe

Santin

Saro

2017

Energy

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In the last few years, the water-energy nexus concept has emerged as a global issue in the international research community. However, studies on European countries are relatively few, and often focused on the energy sector and agriculture, even though industry dominates water use in many European countries. Cooling purposes represent the main part of industrial water demand, and waste heat recovery is perceived as a main strategy to improve industrial resource efficiency. In this paper, we consider a real case study of low-temperature waste-heat recovery in an electric steelmaking industry and evaluate the impact of feasible interventions on primary energy and water consumption, as well as on CO2 equivalent emissions. Based on a Europe wide review of energy and water prices, of energy sources and corresponding resource efficiency indicators, a Monte Carlo model was developed to undertake a generalization of the case study to the EU-15. It was found that, in spite of common intuition, solutions with the lowest primary energy demand and the lowest CO2 equivalent emissions demonstrate the greatest water footprint. This is especially the case of southern European countries, where heat recovery projects with the highest water intensity are economically feasible due to high electricity and low water prices. As increasing carbon prices may exacerbate this phenomenon, inducing a switch to more water intensive technologies, policy instruments for supporting industrial energy efficiency or carbon emission reduction should be carefully designed.

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Industrial waste heat recovery technologies: An economic analysis of heat transformation technologies

Cited by 452 publications

References 13 publications

Experimental Evaluation of a Paraffin as Phase Change Material for Thermal Energy Storage in Laboratory Equipment and in a Shell-and-Tube Heat Exchanger

Experimental Evaluation of a Paraffin as Phase Change Material for Thermal Energy Storage in Laboratory Equipment and in a Shell-and-Tube Heat Exchanger

Thermal performance evaluation of bischofite at pilot plant scale

Water-energy and GHG nexus assessment of alternative heat recovery options in industry: A case study on electric steelmaking in Europe

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