Paper Information

Journal:   MODARES MECHANICAL ENGINEERING   JULY 2017 , Volume 17 , Number 4 #P0099; Page(s) 225 To 236.
 
Paper: 

TOTAL SITE COGENERATION AND DESALINATION SYSTEM INTEGRATION ASSESSMENT USING RCURVE

 
 
Author(s):  SALIMI MOHSEN, AMIDPOUR MAJID*
 
* DEPARTMENT OF MECHANICAL ENGINEERING, FACULTY OF MECHANICAL ENGINEERING, KHAJE NASIR TECHNICAL UNIVERSITY, TEHRAN, IRAN
 
Abstract: 

In this study, the integration of multi-effect desalination (MED) system with cogeneration of heat and power system has been considered. Low-pressure steam in two case studies has been utilized as the motive steam of MED system. R-curve is a powerful tool that can be used to identify fuel utilization amount in different operation points of the cogeneration system. R-curve explains utility system operation improvement procedure without capital cost. By deploying and development of the R-curve concept, the freshwater demand of the total site and total annual cost of the site have been evaluated.
These curves can be used as a tool to improve the operation and economic parameters in every operating point of cogeneration system and present comprehensive view about the improvement of utility system operation condition at each operating point. For the first time, R-curve has been used to identify the impact of cogeneration system integration with a thermal desalination system on the cogeneration system operating point. The performance of the cogeneration system can either be enhanced or impaired by integration of desalination system. As demonstrated in a case study, integration of 2.2 MW MED system can either provide 52.765 MW energy saving or deprive 30.257 MW fuel energy based on the operating state of the cogeneration system before and after integration.

 
Keyword(s): INTEGRATION, R-CURVE, TOTAL SITE, DESALINATION, TOTAL ANNUAL COST
 
References: 
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