Induced thermo-mechanical stress in CPV receivers with cycled high intensity light

Pérez Fernández, Valentín; Anton Hernandez, Ignacio; Herrero Martin, Rebeca; Nogueira Díaz, Eduardo; Nuñez Júdez, Rubén; Cañizo Nadal, Carlos del y Sala Pano, Gabriel (2014). Induced thermo-mechanical stress in CPV receivers with cycled high intensity light. En: "10th Internacional Conference on Concentrator Photovoltaic: CPV-10", 07/04/2014 - 09/04/2014, Albuquerque, New Mexico, EE.UU. pp. 254-258. https://doi.org/10.1063/1.4897073.

Descripción

Título: Induced thermo-mechanical stress in CPV receivers with cycled high intensity light
Autor/es:
  • Pérez Fernández, Valentín
  • Anton Hernandez, Ignacio
  • Herrero Martin, Rebeca
  • Nogueira Díaz, Eduardo
  • Nuñez Júdez, Rubén
  • Cañizo Nadal, Carlos del
  • Sala Pano, Gabriel
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 10th Internacional Conference on Concentrator Photovoltaic: CPV-10
Fechas del Evento: 07/04/2014 - 09/04/2014
Lugar del Evento: Albuquerque, New Mexico, EE.UU
Título del Libro: AIP Conference Proceedings
Título de Revista/Publicación: AIP Conference Proceedings
Fecha: 2014
Volumen: 1616
Materias:
Palabras Clave Informales: Concentrators, CPV receivers, thermal stress, mechanical stress, cycling, reliability
Escuela: E.T.S.I. Telecomunicación (UPM)
Departamento: Ingeniería Telemática y Electrónica
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

CPV receivers are made of materials with very different lineal expansion coefficients. Strong variations in DNI due to the passage of clouds can cause sudden temperature changes that creates mechanical stress. For common solder and metal filled polymers the plastic limit could be reached causing substantial fatigue. The best forecast of receiver reliability is therefore achieved by applying an intermittent light source with nominal irradiance level and a number of cycles equal to the expected cloud passages for a given site. The UPM has developed specialized equipment, dubbed the LYSS (Light cYcling Stressing Source), for carrying out such experiments. The small thermal capacity of receivers allows simulating more than 25000 cycles per week. The number of deep transients expected for Madrid in 30 years operation, based on available data, is about 45000. We are currently using the system to cycle a ?Ge/Ag Epoxy/aluminum? receiver, which shows no degradation after 20000 cycles. The equipment can cast up to 200 and 70 W/cm2 on 0.1 and 1 cm2 cells, respectively.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
FP7EC/FP7/295958Sin especificarSin especificarSin especificar

Más información

ID de Registro: 37385
Identificador DC: http://oa.upm.es/37385/
Identificador OAI: oai:oa.upm.es:37385
Identificador DOI: 10.1063/1.4897073
Depositado por: Memoria Investigacion
Depositado el: 05 Sep 2015 10:48
Ultima Modificación: 05 Sep 2015 10:48
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