Design, fabrication and analysis of an instrument to measure thermal conductivity of liquids and phase change materials using a thermoelectric device
![Thumbnail](/xmlui/bitstream/handle/10234/204775/TFG_V%c3%adctor_Mendiola_Curto.pdf.jpg?sequence=4&isAllowed=y)
Ver/ Abrir
Metadatos
Mostrar el registro completo del ítemcomunitat-uji-handle:10234/158176
comunitat-uji-handle2:10234/71324
comunitat-uji-handle3:10234/107062
comunitat-uji-handle4:
TFG-TFMMetadatos
Título
Design, fabrication and analysis of an instrument to measure thermal conductivity of liquids and phase change materials using a thermoelectric deviceAutoría
Tutor/Supervisor; Universidad.Departamento
García Cañadas, Jorge; Universitat Jaume I. Departament d'Enginyeria de Sistemes Industrials i Disseny; Colomer Mendoza, Francisco José; Universitat Jaume I. Departament d'Enginyeria Mecànica i ConstruccióFecha de publicación
2023-10-27Editor
Universitat Jaume IResumen
The determination of the thermal properties of liquids is very important in many fields of
engineering (energy industry, refrigeration, pharmaceuticals, etc).
The aim of this work is to develop a measurement system ... [+]
The determination of the thermal properties of liquids is very important in many fields of
engineering (energy industry, refrigeration, pharmaceuticals, etc).
The aim of this work is to develop a measurement system to determine thermal
conductivity, thermal diffusivity, and specific heat of materials in liquid state. This
instrument uses a thermoelectric device and impedance spectroscopy measurements. The
apparatus aims to be able to determine that three thermal parameters in only one
measurement without being too much expensive and not using very complex components.
It consists of an small container attached to the upper ceramic part of a thermoelectric
device in which the liquid sample is placed. The lower part of the device is soldered to a
heat sink.
The thermal properties of liquids (water, luzar antifreezer and diethylene glycol) were
determined by impedance spectroscopic measurements. Total uncertainties of <8.6% for
thermal conductivity, <6.3% for thermal diffusivity and <6.1% for specific heat capacity
were obtained, which positions the new instrument as a good alternative to the currently
used methods.
Subsequently it is extended to phase change materials. First, the behaviour of the material
in liquid state is studied by obtaining its properties. Later it has been observed what
happens to the material when it changes from a liquid to a solid state by using the same
device. [-]
Palabras clave / Materias
Descripción
Treball Final de Grau en Enginyeria Mecànica. Codi: EM1047. Curs acadèmic: 2022/2023
Tipo de documento
info:eu-repo/semantics/bachelorThesisDerechos de acceso
info:eu-repo/semantics/openAccess