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Heat recovery

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... the numerical simulation results for the production rate, and the experimental laboratory water tests for a thermal desalination unit with a heat recovery system. The system components are a solar collector and a desalination tower, although the system can be operated with other energy source ...
Desalination 137 (2001)

A thermal seawater desalination plant which utilizes waste heat from flue gases upstream, flue gas desulphurization (FGD), is discussed. This type of “low-grade” heat is suitable for low-temperature... osmosis (SWRO) plants even without taking into account the higher water quality. Keywords: Thermal desalination; Multi-effect distillation; Heat recovery; Economical evaluation 1. Introduction During the wet-FGD absorption process, hot flue gases (130–140°C) are rapidly cooled in the flue ga ...
Desalination 139 (2001)

... of neural network (NnM) and thermodynamic (ThM) models is carried out to estimate on-line the coefficient of performance (COP) in an absorption heat transformer integrated with a water purification process (AHT–WP). The NnM has been computed for16 variables measured by sensors (input and output... concentration are invariable in huge systems. Desalination 243 (2009) 273–285 A neural network approach and thermodynamic model of waste energy recovery in a heat transformer in a water purification process J.A. Hernández*, R.J. Romero, D. Juárez, R.F. Escobar, J. Siqueiros Centro de Investigaci ...
Desalination 243 (2009)

... water in its 5–7 horizontal stages. The solar collectors are used to absorb solar energy and a fluid, the desalinated water itself, transports the heat energy to the tower. Four different systems have been tested in Germany, Spain, India, and Brazil. The field tests show some important results: the... Anwendungen, Julich, 1995. ¨ [4] K. Schwarzer, E. Vieira da Silva, C. Faber and C. Mueller Solar thermal desalination system with heat recovery, Desalination Strategies in South Mediterranean Countries, September 11–13, 2000. [5] C. Mueller, K. Schwarzer, E. Vieira da Silva and C. Mertes ...
Desalination 251 (2010)

... features, which differ from a similar MD process operated at steady-state conditions in a laboratory. The analysis of the system has shown that heat recovery via an external heat exchanger is not only possible, but even effective, and an economical way to intensify the SPMD process. The plan ...
Desalination 172 (2005)

... fact that sulphuric acid production is a highly exothermic process. In that sense, combined with the increased energy cost, surprisingly little heat is recovered from the process. Most often the heat is just cooled off by means of seawater or in air coolers. When recovering heat from the... such as several installations in Middle East and Northern African countries. The thermal duties in the acid coolers are very well adapted for heat recovery in combination with production of fresh water by means of multi effect distillation (MED). Evaporation temperature in a MED system is typicall ...
Desalination 136 (2001)

AD technology provides a breakthrough solution for the continuing global thirst for new fresh water resources that uses only lowtemperature waste heat which is deemed non-payable. Furthermore, AD process can produce cooling power and fresh water simultaneously using waste heat or renewable energy... the water quality of AD process is independent of high feed salinity (up to TDS N 220 ppt or 22% by weight) inside the evaporator even at high recovery ratio. The residual brine can be fed directly to other concentrator or crystallizer for salt recovery purposes. In addition, the chemical qualit ...
Desalination 344 (2014)

This paper describes the development of a solar-assisted multi-stage vacuum membrane distillation (SMVMD) system. The proposed system employs heat recovery unit (HRU) for the energy recovery from the permeate vapor to the feed seawater. Temperature modulating (TM) scheme is also implemented fo ...
Desalination 367 (2015)

... and thermal efficiency characterization of the MD process were introduced. Various factors affecting the thermal efficiency were analyzed. Several heat recovery techniques in the MD field that have been developed and widely employed were reviewed. © 2015 Elsevier B.V. All rights reserved. I ...
Desalination 367 (2015)

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