Design of solar desalination system for salt and grey water

Zaidy, Nur Afrina Balqis (2022) Design of solar desalination system for salt and grey water. Project Report. Melaka, Malaysia, Universiti Teknikal Malaysia Melaka. (Submitted)

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Abstract

People in many regions of the globe lack access to clean water. The demand for fresh water has risen dramatically as a result of the fast expansion of industry throughout the world. Desalination facilities, which use a distillation method to turn sea water into drinking water, were among the first innovations in offering such solution. The problem statement of this study, rural area or remote area can’t afford to buy the current desalination technology it is because of it so expensive for them. However, the cost distribution of solar desalination is drastically unalike and initial cost is the most expensive part of solar distillation. Although, at one time the system is up and running, it’s very exp ensive to maintain and the very cheap of energy. However, the maintenance and operational cost are high and energy demanding. Besides, objective of this project is to develop desalination process that produces freshwater while using energy efficiently and to compare the system performance for salt water and grey water systems. After that, the scope of this project is the quality of the project which is solar still come out with some specific advantage such as environmentally friendly, free energy and using locally available materials. Next scope is solar still is highly dependent on the solar irradiation by water productivity because sun is the only source of heat to solar still. In other hand, methodology of this project is using solar still through by one phases. From this project use wrapping plastic to drip the water from a process condensation to the water storage. The function of the wrapping plastic that can help the concentration of sunlight. Second phase is using condensing tank which use aluminum sheet and make it into cuboid shape for condensing tank. After that, the condensing tank will be put under sunlight to get the hight temperature. From the result experiment, could develop desalination process that produces large amount of fresh water and get comparison the system performance for salt and grey water. From the data analysis and condensing tank efficiency has 4.41 percent grey water and for salt water 2.70 percent.

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