Assessment of a Kalina cycle for waste heat recovery in the cement industry

Júnior, Elviro Pereira Barbosa; Arrieta, Mayra Diniz Ponce; Arrieta, Felipe Raúl Ponce; Silva, Cláudio Homero Ferreira

doi:10.1016/j.applthermaleng.2018.10.088

Cited by 93 publications

(30 citation statements)

References 41 publications

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“…This has been observed in China (Y. Chen et al, 2020 ; Li et al, 2020 ; Liu et al, 2020 ; Pei et al, 2020 ; Xu et al, 2020 ; Yao et al, 2020a ; Zhao et al, 2020 ), Brazil ( Dantas et al, 2020 ; Júnior et al, 2019 ; Nakada and Urban, 2020 ), Egypt ( Mostafa et al, 2021 ), India ( Mahato et al, 2020 ; Mahato and Ghosh, 2020 ; Mor et al, 2021 ; Sarfraz et al, 2020 ), Italy ( Bontempi, 2020 ; Fattorini and Regoli, 2020 ), Spain ( Baldasano, 2020 ; Briz-Redón et al, 2021 ; Martorell-Marugán et al, 2021 ), the United States of America USA (L. W. A. Chen et al, 2020 ; Q.…”

Section: Introductionmentioning

confidence: 82%

Effects of COVID-19 on the environment: An overview on air, water, wastewater, and solid waste

Elsaid

Olabi

Sayed

et al. 2021

Journal of Environmental Management

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Section: Introductionmentioning

confidence: 82%

Effects of COVID-19 on the environment: An overview on air, water, wastewater, and solid waste

Elsaid

Olabi

Sayed

et al. 2021

Journal of Environmental Management

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“…According to their outputs, as the amplitude of wave rises, the strength of vortexes turns higher and results in more heat transfer. Júnior et al (2019) numerically considered the performance of thermal parameters on exhaust gases of the cyclone preheater. They claim that, with the aid of heat recovery, the energy and exergy efficiency can be increased by 0.22 and 0.48, respectively.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Combined Turbulators on the Hydraulic-Thermal Performance and Exergy Efficiency of MWCNT-Cu/Water Nanofluid in a Parabolic Solar Collector: A Numerical Approach

2021

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The present research benefits from the finite volume method in investigating the influence of combined turbulators on the thermal and hydraulic exergy of a parabolic solar collector with two-phase hybrid MWCNT-Cu/water nanofluid. All parabolic geometries are produced using DesignModeler software. Furthermore, FLUENT software, equipped with a SIMPLER algorithm, is applied for analyzing the performance of thermal and hydraulic, and exergy efficiency. The Eulerian–Eulerian multiphase model and k-ε were opted for simulating the two-phase hybrid MWCNT-Cu/water nanofluid and turbulence model in the collector. The research was analyzed in torsion ratios from 1 to 4, Re numbers from 6,000 to 18,000 (turbulent flow), and the nanofluid volume fraction of 3%. The numerical outcomes confirm that the heat transfer and lowest pressure drop are relevant to the Re number of 18,000, nanofluid volume fraction of 3%, and torsion ratio of 4. Furthermore, in all torsion ratios, rising Re numbers and volume fraction lead to more exergy efficiency. The maximum value of 26.32% in the exergy efficiency was obtained at a volume fraction of 3% and a torsion ratio of 3, as the Re number goes from 60,000 to 18,000.

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“…1980'li yıllarda Alexander I. Kalina tarafından düşük sıcaklıklı atık ısıya sahip kurulu bir sistemden maksimum verim sağlamak için yeni bir yardımcı çevrim ileri sürmüştür [4]. Çalışma akışkanı olarak amonyak-su karışımı kullanan Kalina çevrimi, organik Rankine çevrimine karşı ciddi bir rakip olarak öne çıkmaktadır [11][12][13][14]. Kalina çevriminin hem çevreye olan etkisi hem de çalışma akışkanının ucuz olmasından dolayı araştırmacıların gün geçtikçe ilgisini çekmeye devam etmektedir.…”

Section: Gi̇ri̇ş (Introduction)unclassified

Energy and Exergy Analysis of a Kalina Cycle Used for Combined Heat-Power Systems

Koç

Yağlı

2020

Politeknik Dergisi

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Bu makaleye şu şekilde atıfta bulunabilirsiniz(To cite to this article): Koç Y. ve Yağlı H., "Isı-güç kombine sistemlerinde kullanılan kalina çevriminin enerji ve ekserji analizi", Politeknik Dergisi, 23(1): 181-188, (2020).Erişim linki (To link to this article): http://dergipark.org.tr/politeknik/archive ÖZ Küresel ısınmanın giderek arttığı ve hava kirliliğinin insan sağlığını hissedilebilir şekilde tehdit ettiği bugünlerde, enerjiye olan ihtiyaç da giderek artmaktadır. Bu nedenle sadece insanların enerji ihtiyacını karşılamak değil bunun yanında çevreyi tehdit eden unsurların da minimum seviyelere indirilmesi hedeflenmektedir. Enerji ihtiyacını karşılamak için araştırmacılar farklı enerji üretim sistemleri üzerinde çalışmalar yapmakta ya da var olan tesislerin kapasitesini arttırmaktadır. Ancak, küresel ısınma ve hava kirliliğinin en önemli sebeplerinden biri olan endüstriyel atık ısı ve baca gazları atmosfere bırakılarak büyük bir enerji israfına sebep olmaktadır. Bu nedenle, kullanılmakta olan tesislerin iyileştirilmesi ve atık ısıların geri kazanımı hayati derecede önem arz etmektedir. Bu çalışmada kombine ısı-güç çevrimindeki orta derece sıcaklıktaki atık ısının geri dönüşümünü sağlamak için yeni bir metot olan Kalina çevrimi tasarlanmıştır. Sonrasında tasarlanmış olan Kalina çevriminin birinci ve ikinci kanun yönünden termodinamik analizi yapılmıştır. Çalışma sonucunda, maksimum ekserji yıkımı buharlaştırıcıda görülürken, Kalina çevriminin enerji verimi ve ekserji verimi sırasıyla yaklaşık %12 ve %27 olarak hesaplanmıştır.Anahtar Kelimeler: Kalina çevrimi, ısı-güç kombine sistemi, enerji, ekserji, atık ısı geri kazanımı. ABSTRACTNowadays, when global warming is increasing and air pollution threatens human health in a sensible way, the need for energy i s increasing. Therefore, it is aimed not only to meet the people's energy needs but also to minimize the factors that threaten the environment. To meet the energy needs, researchers are working on different power generation systems or trying to increase the capacity of existing plants. However, industrial waste heat and flue gases, one of the most important reasons of global warming and air pollution, are released to the atmosphere and cause a great waste of energy. Therefore, the improvement of the facilities in use and the recovery of waste heat are of vital importance. In this study, the Kalina cycle, which is a new method for recovering the waste heat has been designed for a medium temperature waste heat source released from a combined heat-power system. Afterwards, the thermodynamic analysis of the designed Kalina cycle was carried out in terms of the first and second law of the thermodynamics. As a result of the study, maximum exergy destruction was observed in evaporator, while energy efficiency and exergy efficiency of Kalina cycle were calculated as 12% and 27%, respectively.

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Assessment of a Kalina cycle for waste heat recovery in the cement industry

Cited by 93 publications

References 41 publications

Effects of COVID-19 on the environment: An overview on air, water, wastewater, and solid waste

Effects of COVID-19 on the environment: An overview on air, water, wastewater, and solid waste

The Influence of Combined Turbulators on the Hydraulic-Thermal Performance and Exergy Efficiency of MWCNT-Cu/Water Nanofluid in a Parabolic Solar Collector: A Numerical Approach

Energy and Exergy Analysis of a Kalina Cycle Used for Combined Heat-Power Systems

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