PERANCANGAN UNIT DESALINATOR SURYA MANDIRI SKALA RUMAH TANGGA

• Main Author: Afina Wardhani, Nadhira
• Format: Final Project
• Language: Indonesia
• Subjects: Administrasi negara bidang ekonomi & lingkungan
• Online Access: https://digilib.itb.ac.id/gdl/view/34989
• Institution: Institut Teknologi Bandung

Obtaining freshwater from seawater is no longer impossible for people who live in small islands. Distillation is main process of desalinating seawater using only solar energy. An experimental work is taken to find suitable design of basin-type solar still. Single slope solar still was evaluated through effective parameters which include solar intensity, wind speed, glass and brine water temperature, and overall heat transfer coefficient. Other varying parameters examined are water depth of 1 cm and 3 cm and insulation thickness of 3 mm and 6 mm using polystyrene. Existing design evaluated through design parameters including materials selection, gap distance between brine water surface and glass, and cover inclination. Results show best operational parameters attained in water depth of 1 cm and insulation thickness of 6 mm. Best efficiency is 9.2% with tilt angle cover of 20o. Using iron as a solar still structure will cause further corrosion and shorten its lifetime. Aluminum used for base materials are able to absorb solar heat and transfer heat to brine water. Glass used as cover materials perform condensation well and have long lifespan compared to plastic. Usage of heat storage and enhancing condensation materials are believed to increase efficiency. This experiment shows the facts that productivity is influenced by operational, meteorological, and design parameters. The output is possible to be further improved by modifying design and operational parameters, such as adding energy storing materials, expanding evaporation area, and shorten distance gap.