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Brennwerttechnik (Gas)
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Brennwerttechnik (Gas)

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Erdgas ist bei der Verbrennung der umweltverträglichste fossile Brennstoff. Es wird als Primärenergie eingesetzt, also nicht erst in eine Sekundärenergie umgewandelt. Die Gas-Brennwerttechnik gehört heute zur Standardtechnik in der Wärmeversorgung.Bei der Brennwerttechnik wird heutzutage die im Abgas vorhandene latente Wärme genutzt. Dies lässt sich besonders gut an den Abgastemperaturen ablesen: Während bei konventioneller Technik der Abgasaustritt aus dem Heizkessel bei 140 - 170° C liegt, liegen Abgastemperaturen von neuen, modernen Brennwertkessel zwischen 2 und 8° C über der Rücklauftemperatur, also bei ca. 35 - 60° C. Diese Effizienz wird durch das Kondensieren der Abgase erreicht und erfordert deshalb nur eine einfache Abgasleitung.
Durch den Einsatz von modulierenden Kesseln, d.h. die Wärmeleistung des Kessels passt sich flexibel an den jeweiligen Wärmebedarf an. Damit ist ein sehr hoher Wirkungsgrad und die sparsame Nutzung des Rohstoffs gewährleistet. 

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