Publication: Diseño y cálculo del sistema de refrigeración de una antena de aplicación aeronáutica
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2011-04
Defense date
2011-04-14
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Abstract
El presente documento trata sobre una serie de diseños mecánicos y cálculos de carácter fluido-térmico que se han realizado sobre una antena embarcada en una aeronave de combate, trabajo encargado a una empresa dedicada a proyectos de envergadura internacional tanto de carácter civil como militar. Por este motivo, el trabajo que se expone en esta memoria es la resolución de un problema concreto de índole industrial que se encuentra englobado dentro de un proyecto de gran complejidad y extensión. En un primer lugar, se abordará el proceso realimentado de diseño y cálculo de los módulos estructurales portadores directos de la electrónica de la antena. Estos equipos tendrán la doble misión de dar soporte y evacuar el calor que ésta genere, de la forma más eficiente posible, hasta conseguir alcanzar los requisitos impuestos por el proyecto. La antena se compondrá de 44 módulos “Plank” divididos en 5 grupos, según su tamaño, y será necesario dar una solución de diseño válida para todos ellos. En segundo lugar se trabajará sobre el Distribuidor-Colector que reparte el fluido de refrigeración que alimenta a los Plank y al mismo tiempo sirve de soporte para todos ellos. El objetivo será el diseño de las boquillas que sirven de interfaz entre el Distribuidor-Colector y los Plank, de forma que se consiga que el fluido se distribuya entre todos ellos de forma automática y proporcionalmente según sea las necesidades de cada uno de ellos, las cuales se encuentran detalladas en los requisitos del sistema. Este orden de trabajo viene determinado por la influencia de la caída de presión en los “Plank” sobre el diseño de boquilla que le corresponda a cada uno de ellos ya que, al mismo tiempo que se resuelve el problema térmico planteado en el párrafo anterior, se conseguirá los datos de caída de presión que son necesarios para esta segunda parte del proyecto. ___________________________________________________________________________________________________
This document focuses on a series of mechanical designs and calculations of fluidthermal nature have been made on an antenna embarked on a fighting aircraft, work commisioned from a company dedicated to international-scaled projects both civil and military. For this reason, the work described in this report is to solve a specific problem of industrial nature which is encompassed in a project of great complexity and length. In the first feedback process will address the design and calculation of the structural modules of the electronic direct carriers of the antenna. These systems will have the dual mission of providing support and dissipate the heat being generated in the most efficient way possible, until it reached the requirements of the project. The antenna is composed of 44 modules “Plank” divided into 5 groups according to their size, and we must give a valid design solution for all of them. Secondly, we will work on the collector-distributor that distributes the cooling fluid that feeds the Plank and also serves as a support for them. The aim is the design of the nozzles that serve as interface between the collector and “Plank”, so as to get the fluid to circulate between them automatically and equitably as the needs of each of them that detailed in the system requirements. This work order is determined by the influence of pressure drop in the “Plank” on the nozzle design that corresponds to each of them and at the same time it solves the thermal problem raised in the previous paragraph shall be achieved the pressure drop data we need in this second part of the project.
This document focuses on a series of mechanical designs and calculations of fluidthermal nature have been made on an antenna embarked on a fighting aircraft, work commisioned from a company dedicated to international-scaled projects both civil and military. For this reason, the work described in this report is to solve a specific problem of industrial nature which is encompassed in a project of great complexity and length. In the first feedback process will address the design and calculation of the structural modules of the electronic direct carriers of the antenna. These systems will have the dual mission of providing support and dissipate the heat being generated in the most efficient way possible, until it reached the requirements of the project. The antenna is composed of 44 modules “Plank” divided into 5 groups according to their size, and we must give a valid design solution for all of them. Secondly, we will work on the collector-distributor that distributes the cooling fluid that feeds the Plank and also serves as a support for them. The aim is the design of the nozzles that serve as interface between the collector and “Plank”, so as to get the fluid to circulate between them automatically and equitably as the needs of each of them that detailed in the system requirements. This work order is determined by the influence of pressure drop in the “Plank” on the nozzle design that corresponds to each of them and at the same time it solves the thermal problem raised in the previous paragraph shall be achieved the pressure drop data we need in this second part of the project.
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Antenas, Aeronáutica, Diseño mecánico, Mecánica de fluidos, Propiedades térmicas