This paper represents the Part I of a paper in two parts, aimed at proposing a 2nd principle and thermoeconomic analysis for a Multiple Effects Evaporation (MEE) process and discussing solutions for optimization and energy saving. After a brief analysis of the thermochemical fundamentals of desalination, the minimum theoretical work of separation is introduced to represent a reference condition for the assessment of plants' efficiency. A forward feed MEE configuration is then analysed, abandoning the conventional approach to “at overall plant-level”-analysis; a zooming strategy, based on focusing on the physical model of a generic stage (i.e. effect), is preferred to best recognize the margins for systems' improvement. The energy conversion process taking place in the examined effect reveals very inefficient and the specific contribute of any subprocess to the overall exergy destruction is evaluated. In the Part II of this paper, it will be seen that the cost formation process enables us to perform more accurate optimizations; also, a realistic approach to energy saving by cost integration will be outlined.

Piacentino, A., Cardona, F. (2010). Advanced energetics of a Multiple Effects Evaporation (MEE) desalination plant Part I: 2nd principle analysis by a zooming representation at single-effect level. DESALINATION, Desalination, Vol. 264(264), 84-91.

Advanced energetics of a Multiple Effects Evaporation (MEE) desalination plant Part I: 2nd principle analysis by a zooming representation at single-effect level

PIACENTINO, Antonio;CARDONA, Fabio
2010-01-01

Abstract

This paper represents the Part I of a paper in two parts, aimed at proposing a 2nd principle and thermoeconomic analysis for a Multiple Effects Evaporation (MEE) process and discussing solutions for optimization and energy saving. After a brief analysis of the thermochemical fundamentals of desalination, the minimum theoretical work of separation is introduced to represent a reference condition for the assessment of plants' efficiency. A forward feed MEE configuration is then analysed, abandoning the conventional approach to “at overall plant-level”-analysis; a zooming strategy, based on focusing on the physical model of a generic stage (i.e. effect), is preferred to best recognize the margins for systems' improvement. The energy conversion process taking place in the examined effect reveals very inefficient and the specific contribute of any subprocess to the overall exergy destruction is evaluated. In the Part II of this paper, it will be seen that the cost formation process enables us to perform more accurate optimizations; also, a realistic approach to energy saving by cost integration will be outlined.
Settore ING-IND/10 - Fisica Tecnica Industriale
Piacentino, A., Cardona, F. (2010). Advanced energetics of a Multiple Effects Evaporation (MEE) desalination plant Part I: 2nd principle analysis by a zooming representation at single-effect level. DESALINATION, Desalination, Vol. 264(264), 84-91.
File in questo prodotto:
File Dimensione Formato  
Desalination - Part I.pdf

Solo gestori archvio

Descrizione: Articolo completo
Dimensione 527.74 kB
Formato Adobe PDF
527.74 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/54072
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 11
  • ???jsp.display-item.citation.isi??? 11
social impact