Simulation of the performance of MES evaporators under unsteady state operating conditions
References (10)
- et al.
Abu Dhabi Solar Distillation Plant
Desalination
(1985) - et al.
Optimal control of primary coolant temperature in a nuclear plant
Automatica
(1982) - et al.
Stability analysis and optimization of by-pass controlled heat exchanger with boiling
Journal of Dynamic Systems, Measurement, and Control
(June 1976)- (1972)
Cited by (30)
Modeling and simulation of an industrial falling film evaporator for alumina production
2020, Chemical Engineering Research and DesignCitation Excerpt :The modeling and simulation of an evaporator based on the mass and heat balances provide insight into the evaporation process and can be extrapolated, thereby helping with the development of advanced control strategies. El-Nashar and Qamhiyeh (1990) developed a lumped mathematical model to predict the transient behavior of a multi-effect stack-type distillation plant. The model is based on the mass and heat balances.
New considerations for modelling a MED-TVC plant under dynamic conditions
2019, DesalinationCitation Excerpt :With this respect, few studies on dynamic MED modelling have been published. One of the first model was presented by El-Nashar et al. [10] in 1990, who used a simplified dynamic model, representing the temperatures' dynamic to analyze the transient behaviour of a multiple-effect stack-type distillation plant. Their results were compared to experimental data obtained from a plant operated in Abu Dhabi (UAE) with reasonable agreement.
Effect of disturbances on MED-TVC plant characteristics: Dynamic modeling and simulation
2018, DesalinationCitation Excerpt :Later on, results for a dynamic model for 10-effect MED showed fair agreement while compared with experimental data from a 150 m3/day pilot MED in Israel [16]. El-Nashar and Qamhiyeh [17] used a lumped model to investigate the dynamic behavior of Multi-Effect-Stack (MES) evaporators. Conservation equations of mass and energy were written and solved simultaneously for each effect.
Transient performance of MED processes with different feed configurations
2018, DesalinationCitation Excerpt :The dynamic behavior of four effects parallel/cross MED systems was done by Aly and Marwan [24] which allowed the study of system start-up, shutdown and load changes using lumped model of mass, energy and salt balance equations. El-Nashar and Qamhiyeh [25] developed a simulation lumped model for predicting the dynamic behavior of MES evaporators with forwarding feed configuration. The model yielded a reasonable agreement with data taken during plant start-up of the under-operation plant at Abu Dhabi.