Simultaneous targeting and design for non-mass transfer based water and energy reduction

In recent years, the initiative to reduce water and energy simultaneously has received increased attention. Two approaches; conceptual design such as graphical approach and mathematical modeling are widely used to perform this reductions. Mathematical modeling is preferred mostly by academicians because it could lead to global optimal solutions. Graphical methods on the other hands can provide wide insights through its visualization nature and are idler for engineers. In this paper, the targeting and design graphical approach for simultaneous water and energy reduction proposed by Wan Alwi et al. [1] are extended for non-mass transfer based water system. The graphical approach which has been presented in this paper is the simplest technique and easy to understand. It is divided to two steps (1) water targeting and design, (2) energy targeting and design. The method has been tested on a case study and has significant water and energy utility reductions.