成果報告書詳細
管理番号20120000000611
タイトル*平成22年度中間年報 最先端PG(Mega-ton Water System) 100万m3/日規模大型プラント構成最適化 「海水淡水化プラントシミュレーター」 (H22~H23)
公開日2012/9/22
報告書年度2010 - 2010
委託先名株式会社東芝
プロジェクト番号P09025
部署名環境部
和文要約和文要約等以下本編抜粋:
1. 研究開発の内容及び成果等
メガトン規模の海水淡水化プラントのコスト評価を行う上で、(1)プラントを構成する機器、配管、水質反応モデルの調査、(2)調査結果をもとに、各モデルの構成検討、モデル作成、計算コードの作成を実施した。
英文要約In this project, we have developed the Sea-water Desalination Plant Simulator for a prior evaluation of process design of general Sea-Water Reverse Osmosis (SWRO) process. (1) Survey of the state-of-the-art mathematical models on process components.We have surveyed the existing mathematical models and modeling techniques on process components of general SWRO process, which include piping system models, pre-treatment unit process models, reverse osmosis membrane models and sea-water chemical and biological reaction models. We have confirmed that the modeling of chemical and biological membrane fouling phenomena caused by inorganic and organic matter and of coagulation dosage will be crucial for total evaluation of sea-water desalination plant simulator, which will be consecutively investigated.(2) Development of total sea-water plant simulator for prior evaluation to design an appropriate process configuration.We have defined the function and its input and output of total sea-water plant simulator for proper prior evaluation of process design. The input consists of the designed process flow diagram, operational conditions and sea-water chemical properties, and the output includes specific energy consumption (SEC) and treated water qualities. The function is able to evaluate the variation of SEC and the treated water quality depending on sea-water conditions. The simulator consists of physical models, such as piping system model and chemical / biological and water quality reaction models. The former is able to evaluate the pressure loss of equipments and the latter calculate the water quality. The simulator has extensibility to enable the addition of the water quality items to simulate.Based on each model surveyed above, we have developed a mathematical model to simulate reverse osmosis membrane and the acid / alkali quality of the water. Then we have evaluated the accuracy of the simulation by comparing the outputs of the developed simulator and that of the design tools developed by membrane companies.In particular, we have compared the produced water flow rate, salinity, boron concentration, and pH in the brine. Based on the results, we are developing tuning algorithm of the membrane transport properties of each ion, the membrane parameters and the characteristic of the membrane cross flow.Further study will include the evaluation and the improvement of accuracy of the developed simulator based on the operative data which will be acquired by a bench-scale pilot plant of SWRO process.
ダウンロード成果報告書データベース(ユーザ登録必須)から、ダウンロードしてください。

▲トップに戻る