Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Experimental evaluation of the thermal behavior of hot water flow in a module-faucet system
Submission Author:
Fernanda Perazzolo Disconzi , SC
Co-Authors:
Giovanna Menegatti, Fernanda Perazzolo Disconzi, Fabricio Torres Borghi
Presenter: Fernanda Perazzolo Disconzi
doi://10.26678/ABCM.COBEM2023.COB2023-0419
Abstract
An experimental study was carried out on temperature and heat transfer in a coupled module-faucet system, under controlled conditions, during the use of purified hot water from a product marketed in Brazil. The system is composed of a module, responsible for heating, cooling, and/or gasifying the purified water, which is connected by hoses to a faucet. Temperature measurements were taken along the system, which was instrumented with thermocouples and connected to a data acquisition system. Initially, tests were performed for different purposes. In the first test, the system was evaluated under steady-state conditions to determine the uncertainties of the thermocouples. In the second and third tests, the behavior of the temperature at each thermocouple was evaluated during defined periods or until the reservoirs were emptied. Finally, to determine the operational factors that most impact the heat transfer of hot water flow, from the water outlet of the module to the final outlet at the faucet, a 2³ factorial design was performed. For this, the factors evaluated were the two programmed temperatures of the module and the volume of hot water removed from the module. The results showed that the removed water volume has the greatest influence on the heat transfer rate, with higher heat transfer rates for small volumes compared to larger volumes. In addition, it was observed that the hose used for water flow in the module-faucet system has high thermal conductivity, which allows for greater heat transfer from the water to the surrounding environment. The study can contribute to improvements and development of new technologies in similar products to the one analyzed.
Keywords
Heat transfer, Module-faucet System, Factorial Experiment
