Desenvolvimento de sistema de lavagem automotivo tipo self-service

Abstract

The objective of this final course project was to develop a pneumatic foam generator for use in self-service car wash systems. The proposal arose in response to the growing demand for sustainable, efficient solutions adapted to modern realities. The rationale is based on the need to combine technological innovation with the preservation of natural resources, while also meeting the requirements of current environmental legislation. The methodology employed included a literature review, functional benchmarking, conceptual reverse engineering, and technical analysis of relevant components (valves, venturis, pumps, and diluters). The experimental tests were designed to evaluate the quality of the foam generated, the efficiency in the use of inputs, the stability of the mixture, and the water consumption in the process. The results obtained demonstrated the technical feasibility of the prototype, validating the formation of stable foam, the efficient use of inputs, and low water consumption. The efficiency of the mixing chamber and the functionality of the components were verified, resulting in a compact, efficient system aligned with sustainable and innovative practices for automotive cleaning. The cost analysis revealed significant savings, justifying the initial investment. In particular, the cost for 40 seconds of foam, 15.52 liters of solution, was R$ 5.24, demonstrating the economic efficiency of the system.