PARAMETRIC DESIGN OF TORSION SPRING AND FAUCET’S END FOR WATER SAVING FAUCET

• Main Author: Raihan Ghany, Hanif
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/47113
• Institution: Institut Teknologi Bandung

Clean water is one of the many primary needs of human. The demand for clean water in Indonesia rises every year as the population rises making the amount of freshwater per capita ever decreasing. One of the daily activities that needs freshwater is ablution. Ablution uses between 3-7 liters of water per ablution. The majority of muslim ablutes five times per day according to the number of compulsory prayer. So a saving of 1 liter of water per ablution could save 5 liter of water per ablution per person. To save water usage in ablution, IDEALAB, a startup company that focuses on innovative product development designed a water saving faucet using torsion spring to close the faucet handle automatically, reducing water wastage when the user wash their body parts. The product development of this water saving faucet has reached the embodiment design phase. The next phase of product design is the parametric design phase in which the dimensions for the critical-to-quality part of the product is determined. So, this thesis will do the parametric design phase for the part deemed critical-to-quality which is the faucet’s end and the torsion spring. The purpose of the thesis is to determine the parametric design for the faucet’s critical-to-quality part the faucet’s end and the torsion spring. This thesis uses the Engineering Design book by George E. Dieter and Linda C. Schmidt as reference for the thesis’s methodology which has five steps that are formulation of the parametric design problem, design alternative generation, design alternative analysis, design alternative evaluation, and design alternative optimization. The output of this thesis is the dimension recommendation for the faucet’s end and torsion spring part.