Wet steam flow energy analysis within thermo-compressors

Sharifi, Navid; Boroomand, Masoud; Kouhikamali, R.

doi:10.1016/j.energy.2012.09.003

Cited by 42 publications

(8 citation statements)

References 43 publications

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“…Such highpressure nozzles are widely used in inside thermo-compressors of large capacity Multi Effect Distillation (MED) plants [9,10]. Therefore, accurate numerical simulation of high-pressure nozzles in order to evaluate their performance can improve the efficiency of thermo-compressors especially in desalination industries.…”

Section: Introductionmentioning

confidence: 99%

Two-fluid model for simulation of supersonic flow of wet steam within high-pressure nozzles

Abadi

Kouhikamali

Atashkari

2015

International Journal of Thermal Sciences

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Section: Introductionmentioning

confidence: 99%

Two-fluid model for simulation of supersonic flow of wet steam within high-pressure nozzles

Abadi

Kouhikamali

Atashkari

2015

International Journal of Thermal Sciences

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“…A few study results have pointed out that the ideal gas cannot truly reflect the flow characteristics of the ejector [45]. The wet steam model can better predict the actual flow conditions and the simulation results are closer to the experimental values [46,47]. Nevertheless, the research of comparing the CFD simulation values with the experimental values studied by Moore et al [48], it was concluded that the simulated value of the ideal gas model is closer to the experimental value and can better reflect the fluid flow characteristics than the wet steam model in the double-choked flow mode.…”

Section: Numerical Simulation Methodsmentioning

confidence: 91%

A Steam Ejector Refrigeration System Powered by Engine Combustion Waste Heat: Part 1. Characterization of the Internal Flow Structure

et al. 2019

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With the escalating production of automobiles, energy efficiency and environmental friendliness have always been a major concern in the automotive industry. In order to effectively lower the energy consumption of a vehicle, it is essential to develop air-conditioning systems that can make good use of combustion waste heat. Ejector refrigeration systems have become increasingly popular for this purpose due to their energy efficiency and ability to recycle waste heat. In this article, the elements affecting the performance of a typical ejector refrigeration system have been explored using both experimental and numerical approaches. For the first time, the internal flow structure was characterized by means of comprehensive numerical simulations. In essence, three major sections of the steam ejector were investigated. Two energy processes and the shock-mixing layer were defined and analyzed. The results indicated that the length of the choking zone directly affects the entertainment ratio under different primary fluid temperature. The optimum enterainment ratio was achieved with 138 °C primary fluid temperature. The shock-mixing layer was greatly affected by secondary fluid temperature. With increasing of back pressure, the normal shock gradually shifted from the diffuser towards the throat, while the shock train length remains lunchanged.

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“…A mechanical compressor is a mechanical device intended to increase the pressure of a gas and therefore its energy . There are also compressors without any mechanical component these are thermocompressors [11], more commonly called ejectors.…”

Section: Compressormentioning

confidence: 99%

Sizing of Unit Operations in process engineering using Aspen Plus Simulation

Labidi¹

2022

Preprint

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This project deals with the sizing of unit operations in process engineering.Process engineering is the understanding and application of the fundamental principles andlaws of nature that allow us to transform raw material and energy into products that are usefulto society, at an industrial level.By taking advantage of the driving forces of nature such as pressure, temperature and concentration gradients, as well as the law of conservation of mass, process engineers can developmethods to synthesize and purify large quantities of desired chemical products.In this project we will focus in the design, operation, control, optimization and intensificationof chemical processes by designing pipelines in each case study.For Numerical Resolution, will use the chemical process simulator Aspen HYSYS, used tomathematically model chemical processes.We have a multitude of problems to deal with during this project.1. Study of an incompressible fluid flow in a pipeline2. Technology of Heat Exchangers3. Refrigeration cycle

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Wet steam flow energy analysis within thermo-compressors

Cited by 42 publications

References 43 publications

Two-fluid model for simulation of supersonic flow of wet steam within high-pressure nozzles

Two-fluid model for simulation of supersonic flow of wet steam within high-pressure nozzles

A Steam Ejector Refrigeration System Powered by Engine Combustion Waste Heat: Part 1. Characterization of the Internal Flow Structure

Sizing of Unit Operations in process engineering using Aspen Plus Simulation

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