Optimization of Simple Solar Still Performance Using Fuzzy Logic Control

A. M. Ahmed, A.H. Ahmed, R. Daoud, O. Ahmed
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引用次数: 4

Abstract

A solar still is a tool for multi usage such as pure water production. In this paper, the fuzzy logic (FL) is used to select and optimize the values for the main parameter of the distiller. Four affected parameters are selected for the FL input water temperature (Tw), water pressure (Pw), glass temperature (Tg) and gas pressure (Pg). These parameters have a separated membership function (MF) that control the linguistic variables. Three MF for each input variables, which have a linguistic expression such as (Low, Mid. and High). The target of the work is the water productivity $\dot{\mathrm{m}}$; so the system rules we constructed with 81 different if-statement, which are computed through the input and MF numbers, conditions to control the operation. The research aims to achieve the possibility of using simple solar distillation. The affected operational variables on the distillation performance are including the temperature of the glass, water, and pressure inside the distillation using the foggy logic technique, which is considered a critical point for interrupting operational variables. The water level inside the distillation (Pw & Pg) and Temperature (Tw & Tg) were changed. The results showed that the best performance of the distiller is at $\mathrm{Tw}=60^{\circ}\mathrm{C},\ \mathrm{Pg}=9000\mathrm{Pa},\ \mathrm{Tg}=30^{\circ}\mathrm{C}$ and $\mathrm{Pw}=10000\mathrm{Pa}$.
基于模糊逻辑控制的简单太阳能蒸馏器性能优化
太阳能蒸馏器是一种多种用途的工具,如纯水生产。本文采用模糊逻辑对蒸馏器的主要参数值进行了选择和优化。FL输入水温(Tw)、水压(Pw)、玻璃温度(Tg)和气体压力(Pg)选择4个影响参数。这些参数有一个独立的隶属函数(MF)来控制语言变量。每个输入变量有三个MF,它们具有语言表达式,如(Low, mid, and High)。工作目标为水生产力$\dot{\ mathm {m}}$;因此,我们用81个不同的if语句构建了系统规则,这些if语句通过输入和MF数来计算,条件来控制操作。该研究旨在实现使用简单太阳能蒸馏的可能性。影响蒸馏性能的操作变量包括玻璃的温度、水和使用雾逻辑技术的蒸馏内的压力,这被认为是中断操作变量的临界点。蒸馏塔内水位(Pw & Pg)和温度(Tw & Tg)发生了变化。结果表明:$\ mathm {Tw}=60^{\circ}\ mathm {C}、$\ mathm {Pg}=9000\ mathm {Pa}、$\ mathm {Tg}=30^{\circ}\ mathm {C}$、$\ mathm {Pw}=10000\ mathm {Pa}$的蒸馏器性能最佳。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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