En este trabajo se presenta el modelamiento del intercambiador de calor de tubos y carcasa de Lngerer u. Reich (Stück 2 Dat 372) del laboratorio de energía de la Sección de Ingeniería Mecánica. El intercambiador de calor recibe agua caliente en su coraza, proveniente de un motor de combustión, y agua fría en los tubos internos.

Programmable logic controllers (PLC) devices play an important role in automation systems; therefore, technicians must have adequate training with these devices. If a student wants to learn about PLCs, they will find two problems. First, training programs are expensive, and second, PLC modules are not suitable for gaining hands-on skills. This study proposes the implementation and validation of a less expensive PLC module that is accessible to students interested in learning about this technology. Two prototypes were developed using a PIC16F877 and an ATMEGA328P microcontroller. This study describes the enhancement made in the second prototype over the first prototype. Finally, a comparison test between the two prototypes and two commercial PLCs is demonstrated. A MyRIO programmed as a data logger monitored the PLC operation for 12h. The program recorded the response time of the PLC outp...

En este trabajo se presenta el modelamiento del intercambiador de calor de tubos y carcasa de Lngerer u. Reich (Stück 2 Dat 372) del laboratorio de energía de la Sección de Ingeniería Mecánica. El intercambiador de calor recibe agua caliente en su coraza, proveniente de un motor de combustión, y agua fría en los tubos internos.

This article describes the design and development of a compact low energy consumption temperature data acquisition system using the I2C protocol with cables up to eight meters long. This system has been used in the implementation of a Peruvian government project aimed at validating the use of Trombe walls in small towns located at high altitude (4000 - 5000 m.a.s.l.). This article explains the construction of the module, the data acquisition subsystem, and presents an overview of the implementation of the developed system.

This article describes the design and development of a compact low energy consumption temperature data acquisition system using the I2C protocol with cables up to eight meters long. This system has been used in the implementation of a Peruvian government project aimed at validating the use of Trombe walls in small towns located at high altitude (4000 - 5000 m.a.s.l.). This article explains the construction of the module, the data acquisition subsystem, and presents an overview of the implementation of the developed system.