DESIGN AND OPERATING COMPARISON OF MSF AND MED SYSTEMS

被引：65

作者：

MORIN, OJ

机构：

[1] Black and Veatch, Orlando, FL 32809, 7800 Southerland Blvd.

来源：

DESALINATION | 1993年 / 93卷 / 1-3期

关键词：

Distillation;

D O I：

10.1016/0011-9164(93)80097-7

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This paper compares the technical and cost aspects of Multistage Flash (MSF) and Multiple Effect (MED) of evaporators for the distillation of seawater. Comparisons of heat transfer surface, energy requirements, and process requirements are made. Capital and operating costs are presented. Process optimization are carried out for an assumed dual purpose installation at performance ratios (PR) of 8, 10 and 12 lbs distillate per 1,000 Btu heat input. Capital and operating costs for the optimized processes were: Unit capital cost/pgd: MSF, $8.70 (PR at 10/1); MED, $7.01 (PR at 8/1) Operating and maintenance cost/kgal: MSF, $4.20; MED, $3.35 Total cost of water/kgal: MSF, $7.05; MED, $5.65 Proposed advances in the state-of-the-art for MED systems are presented, as well as capital and operating cost savings for these advanced designs.

引用

页码：69 / 109

页数：41