Publication: SIMULACIÓN TÉRMICA INTEGRADA DE UNA HABITACIÓN CALEFACCIONADA CON UN SISTEMA DE ALIMENTACIÓN HIBRIDO
Date
2018-09
Authors
VALENZUELA ESCALONA, ÁLVARO GUILLERMO
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Abstract
En la actualidad existe un gran interés tanto en la industria como en el sector público por la implementación de energías renovables no convencionales (ERNC) y el uso eficiente de estas. Una de las tantas aplicaciones que tienen estos conceptos en nuestra sociedad es la utilización de un sistema de generación distribuida, en el cual el lugar de consumo de la carga se encuentra cercano al lugar de obtención de potencia, remediando así problemas tales como grandes pérdidas de energía a lo largo de una red centralizada y mantenimiento de esta. Para hacer más eficiente el control entre las cargas y la producción de potencia se utilizan estructuras como las nanoredes. Este trabajo de título tiene por objetivo desarrollar un modelo térmico transiente de una habitación del tipo nodal en el programa TRNSYS, el cual está en interacción con un sistema de climatización y es contrastado con datos empíricos. Se realiza la calibración del modelo obteniendo errores porcentuales menores al 7% en los perfiles de temperatura de pared y temperatura ambiente en el laboratorio. Se realizó un análisis de sensibilidad con respecto a las variables de entrada del modelo resultado con una influencia del 17% en un rango de variación de un 50% de los parámetros de entrada. El modelo es utilizado para estimar la carga térmica mensual en un año meteorológico típico en conjunto con la energía necesaria para lograr distintas temperaturas de consigna. Además se simula el potencial de generación de un sistema PV y una turbina de viento. Posterior a la validación del modelo térmico se utilizará como parte de un modelo predictivo para la optimización de la estrategia de control de una nanored en el Departamento de Ingeniería Eléctrica (DIE) de la Universidad Federico Santa María, Campus San Joaquín.
At present, there is great interest in both the industry and the public sector for the implementation of non-conventional renewable energies (ERNC) and the efficient use of these. One of the many applications that these concepts have in our society is the use of a distributed generation system, in which the place of consumption of the load is close to the place of obtaining power, thus remedying problems such as large losses of power energy throughout a centralized network and maintenance of this. To make the control between the loads and the production of power more efficient, structures such as nanoredes are used. The objective of this document is to develop a transient thermal model of a nodal room in the TRNSYS program, which is in interaction with an air conditioning system and this is contrasted with empirical data. The calibration of the model is performed obtaining percentage errors less than 7% in the profiles of wall temperature and ambient temperature in the laboratory. A sensitivity analysis was performed with respect to the input variables of the result model with an influence of 17% in a variation range of 50% of the input parameters. The model is used to estimate the monthly thermal load in a typical meteorological year together with the energy needed to achieve different setpoint temperatures. It also simulates the generation of a PV system and a wind turbine. After validation of the thermal model, it will be used as part of a predictive model to optimize the control strategy of a nanored in the Department of Electrical Engineering (DIE) of the Federico Santa María University.
At present, there is great interest in both the industry and the public sector for the implementation of non-conventional renewable energies (ERNC) and the efficient use of these. One of the many applications that these concepts have in our society is the use of a distributed generation system, in which the place of consumption of the load is close to the place of obtaining power, thus remedying problems such as large losses of power energy throughout a centralized network and maintenance of this. To make the control between the loads and the production of power more efficient, structures such as nanoredes are used. The objective of this document is to develop a transient thermal model of a nodal room in the TRNSYS program, which is in interaction with an air conditioning system and this is contrasted with empirical data. The calibration of the model is performed obtaining percentage errors less than 7% in the profiles of wall temperature and ambient temperature in the laboratory. A sensitivity analysis was performed with respect to the input variables of the result model with an influence of 17% in a variation range of 50% of the input parameters. The model is used to estimate the monthly thermal load in a typical meteorological year together with the energy needed to achieve different setpoint temperatures. It also simulates the generation of a PV system and a wind turbine. After validation of the thermal model, it will be used as part of a predictive model to optimize the control strategy of a nanored in the Department of Electrical Engineering (DIE) of the Federico Santa María University.
Description
Catalogado desde la version PDF de la tesis.
Keywords
ENERGIAS RENOVABLES NO CONVENCIONALES , MODELO TERMICO , MODELO TRANSIENTE , SISTEMA DE CLIMATIZACION