Sistema de Instrumentación para un Calentador de Agua de Rápida Recuperación

Resumen

This work presents an instrumentation system developed for the experimental acquisition and monitoring of the main thermal and hydraulic variables of a rapid-recovery water heater. The system uses two externally mounted NTC thermistors to measure inlet and outlet pipe temperatures, a Hall-effect sensor to measure water flow, an STM32 microcontroller for data acquisition, an NI TC-01 module for reference temperature measurement, and a LabVIEW interface for real-time visualization and data storage. The experimental procedure considered heating, steady-state, and cooling conditions combined with zero, low, and high waterflow levels. We acquired 120 experimental records at 5 Hz, collecting 1200 samples during each 240 s test. The measurements captured the water heater's thermal and hydraulic behavior under different operating conditions without modifying the original water path. The resulting dataset provides a structured basis for subsequent analysis of outlet-temperature behavior and future temperature-estimation strategies.