Diseño y construcción de un calderín de 3BHP con fines didácticos, para el Laboratorio de Transferencia de Calor de la Escuela Politécnica Nacional.

Abstract

This work shows the design and construction of a boiler for didactic use whose main objective is to contribute to the academic training of the students of the Faculty of Mechanical Engineering of Escuela Politécnica Nacional. Currently, the facilities of the Heat Transfer Laboratory do not have a steam generator that contributes as a didactic instrument. Due to, is required the implementation of equipment with these characteristics.

The project started with a bibliographic compilation about the fundamentals of thermodynamics and heat transfer, the main characteristics of steam generators, and equipment available on the market. Continuing with the project, the user requirements were taken into consideration to generate a solution based on the weighting methods for multi-criteria decision-making technique. Subsequently, the design of the equipment was carried out following up on the regulations described in the ASME Pressure Vessels Code, Section I and II. At this point, the selection of standardized elements (pipes, valves, accessories, control devices, etc.), generation of plans, construction of parts, and assembly of the equipment were carried out. Once the equipment was built, the testing protocol was launched in the construction workshop. Achieving favorable results in the tests of water supply, fuel supply, steam supply, purge, and control systems.

Finally, the equipment was transported and installed in the Heat Transfer Laboratory of Escuela Politécnica Nacional. Where a start-up and normal operation test was carried out again, in which the equipment reached its working pressure (60 psi) without problems. Once the test finished, the equipment was turned off and handed over to the laboratory's chief.