Calefacción solar

Calefacción solar: versión 8/2008
Del acumulador intermedio solar a la caldera solar
Versión: 8/2008

Dipl.-Ing. Thomas Krause SOLVIS GmbH & Co KG Dipl.-Ing. Lars Kühl TU Braunschweig, Institut für Gebäude- und Solartechnik Revisión de la redacción en 2008: Ralf Wollank SOLVIS GmbH & Co KG

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1 Es hora de calentar con elsol·········································································································· 4 1.1 Reducir el consumo de energía mejorando el standard de aislamiento ·········································· 5 1.2 Sustituir la energía fósil por energía solar ··················································································· 5 1.3 Mejores grados de rendimiento de los aparatos ·········································································· 6 1.4 Ahorro deenergía······················································································································ 6 1.5 Proteger el medio ambiente y ahorrar costes de calefacción························································· 6 2 Conceptos de acumulador de apoyo solar a la calefacción ································································ 7 2.1 Instalaciones de dosacumuladores···························································································· 7 2.2 El acumulador combinado estratificado como manager de energía (instalación de un acumulador)·· 8 2.2.1 Integración de la producción de agua caliente sanitaria en el acumulador intermedio de calefacción ····· 8 2.2.2 La estratificación, garantía de efectividad·········································································· 8 2.2.3 Carga del acumulador de calefacción en función de la temperatura exterior ························· 9 2.2.4 Carga del acumulador mediante dos sensores ································································· 10 3 Integración del aparato de condensación en el acumulador····························································· 10 3.1 Hidráulica de instalaciónsimplificada ······················································································· 11 3.2 Técnica de regulación simplificada ··························································································· 12 3.3 Menos requerimientos de espacio ···························································································· 12 3.4 Menospeso···························································································································· 12 4 Elementos de una caldera de calefacción solar ·············································································· 13 4.1 Técnica solar Low-Flow ············································································································ 13 4.1.1 Reducción de costes con latécnica Low-Flow··································································· 13 4.1.2 Disponibilidad más rápida con la técnica Low-Flow ··························································· 14 4.1.3 Llenado y puesta en servicio con la bomba Low-Flow························································ 16 4.2 Descarga estratificada en la producción de agua caliente sanitaria············································· 17 4.3 El circuito de calefacción Low-Flow: Calor solar 50/30 ······························································· 19 4.3.1 Secciones transversales de tubo menores······································································· 20 4.3.2 Mejor grado de rendimiento de la instalaciónsolar··························································· 20 4.3.3 Mejor aprovechamiento de la condensación····································································· 20 4.3.4 Reducción de la potencia de la bomba de calefacción ······················································ 20 4.4 Tecnología de condensación...