A novel heat exchanger network retrofit approach based on performance reassessment

Jiang, Ning; Han, Wenqiao; Guo, Fengyuan; Yu, Hangsheng; Xu, Yingjie; Mao, Ning

doi:10.1016/j.enconman.2018.10.001

Cited by 24 publications

(11 citation statements)

References 36 publications

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“…Según Jiang et al (2018), cuando se aplican técnicas de mejora de las redes de intercambiadores de calor (HEN retrofit), imponiendo estructura fija de la red (uso de superficies extendidas, insertos de cinta en espiral, deflectores helicoidales, etc. ), la recuperación termoenergética puede elevarse hasta un 7.69 %.…”

Section: Comparación Del Caso Mejorado Con El Caso Baseunclassified

“…En cambio, mediante la segunda, se tienen en consideración todas las posibilidades de modificación de la red, incluyendo cambios del área de transferencia y nueva disposición de los sistemas de tuberías. Aunque la modificación de la topología permite mejor aprovechamiento del agua y la energía, también implica mayores costos capitales (Jiang et al, 2018). Además, en plantas de producción continua, por lo general se dificulta realizar este tipo de modificaciones, incitando preferencia por la primera opción.…”

Section: Introductionunclassified

“…La mejora de redes preexistentes de intercambiadores de calor ha sido ampliamente estudiada. Dentro de los trabajos más recientes se encuentran los de desarrollados por Jiang et al (2018), Bütün, Kantor, Mian y Maréchal (2018), Biyanto et al (2019), Klemeš et al (2020), entre otros. Sin embargo, en las referencias consultadas no se han analizado intercambiadores de calor con tres fluidos, ni se consideró la optimización de los flujos de las corrientes secundarias como uno de los métodos de intensificación de la transferencia de calor sin modificar la topología existente.…”

Section: Introductionunclassified

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Incremento de la termotransferencia en un sistema de enfriadores enchaquetados, optimizando los flujos de agua

Escalona¹,

Camaraza-Medina²,

Retirado-Mediaceja³

et al. 2020

Enfoque UTE

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En esta investigación se propuso un esquema optimizado de distribución de agua para incrementar la termotransferencia, en un sistema de enfriadores de sulfuro de hidrógeno. La instalación está compuesta por dos intercambiadores de calor de tubos y coraza enchaquetados, instalados en un arreglo serie-paralelo. Cada equipo opera con tres fluidos y posee dos vías principales de intercambio térmico. La optimización de los flujos de agua se realizó mediante algoritmos genéticos, utilizando un modelo con base en el método ɛ-NUT para la simulación de los intercambiadores de calor. Se estimó un incremento del calor transferido entre 3695 y 10514 W, así como una disminución de la temperatura del gas a la salida del sistema entre 2.9 y 9.8 K. La recuperación termoenergética calculada osciló entre 3.90 y 22.16 %, con 12.44 % como promedio. Mediante regresión lineal múltiple se determinaron las funciones para solución tecnológica del problema investigado.

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Section: Comparación Del Caso Mejorado Con El Caso Baseunclassified

Section: Introductionunclassified

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Incremento de la termotransferencia en un sistema de enfriadores enchaquetados, optimizando los flujos de agua

Escalona¹,

Camaraza-Medina²,

Retirado-Mediaceja³

et al. 2020

Enfoque UTE

View full text Add to dashboard Cite

show abstract

“…The latest experience with industrial realization of a HEN retrofit confirms that plant layout is a major constraint that hinders a HEN from achieving maximum Heat Recovery. One of the latest progressive works in this field classifiable as hybrid methods for HEN retrofit is the work of Jiang et al [23], which focused on reassessing the performance of reused heat exchange units and employing a genetic algorithm adopted for the optimization of this retrofit problem. It also allows considering plant layout, the physical distance of equipment, available equipment space, and piping and modification costs.…”

Section: Introductionmentioning

confidence: 99%

Practical Energy Retrofit of Heat Exchanger Network Not Containing Utility Path

Jegla

Freisleben

2020

Energies

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The paper presents a method developed for the energy retrofit of specific Heat Exchanger Networks not containing Utility Paths. This useful and highly practically oriented method involves a systematic approach to obtaining the most efficient minimal modification topology of a Heat Exchanger Network, which brings the greatest benefits in terms of energy savings of the modified process. In principle, it is focused on finding the most suitable location for a new heat exchanger insertion to create the most efficient Utility Path. The next step of the developed retrofit method is the detailed design of the newly integrated heat exchanger using commercial software in combination with several heuristic rules regarding the cost-free investment and maintenance cost minimization of a new heat exchanger and considering heat transfer enhancement within the available exchanger type, space, and fluids pressure drop constraints. The detail design stage of the method also includes observation and reassessment of the performance and operational parameters of the existing heat exchangers. Then, the developed method is applied to the case of the Heat Exchanger Network retrofit in the process of the hydrogenation of oil.

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“…Ilori et al [10] investigated the thermal and pressure drop performance of compact tube heat exchanger under oscillatory flow conditions using experimental and numerical methods. Jiang et al [11] proposed a new methodology for heat exchanger network retrofit to fully evaluate the performance of a heat exchanger network. Kayabasi and Kurt [12] derived relations between effectiveness and expense coefficients.…”

Section: Introductionmentioning

confidence: 99%

Study of Heat and Mass Transfer Through an Earth to Air Heat Exchanger Equipped with Fan in South West of Algeria

Sakhri¹,

Menni²,

Chamkha³

et al. 2019

IJHT

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Earth to air heat exchanger is a very old technique used 3000 years B.C in arid regions where that was called Qanat. In the present experimental study, the potentials of earth to air heat exchanger to provide thermal comfort for winter weather conditions in South west of Algeria described as arid region are investigated. An EAHE made of 66 meter of PVC tube and buried at 1.5 meter underground in agriculture zone equipped with 33 W fan was studied. Thermal and hygrometric analysis of air passing inside the tube form inlet to outlet was conducted. The results show the system was able to create two thermal regimes: heating regime with a gain of 13 °C (from 00h to 11h and from 17h to 23h) and cooling regime (from 12h to 16h) with 6 °C in the same day. Relative humidity was reduced by 32 % of 90 % of studied cases which stops the development of microorganism and reducing Internal Air Quality.

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A novel heat exchanger network retrofit approach based on performance reassessment

Cited by 24 publications

References 36 publications

Incremento de la termotransferencia en un sistema de enfriadores enchaquetados, optimizando los flujos de agua

Incremento de la termotransferencia en un sistema de enfriadores enchaquetados, optimizando los flujos de agua

Practical Energy Retrofit of Heat Exchanger Network Not Containing Utility Path

Study of Heat and Mass Transfer Through an Earth to Air Heat Exchanger Equipped with Fan in South West of Algeria

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