Untersuchung der Gesamtwärmeübertragung in Kesseln mit nachgeschalteten Thermosiphons oder Wärmetauschern in Blasensäulen

In North Europe the domestic heating systems an the hot-water supply are mainly supplied by the process of combustion of fossil sources as natural gas or fuel oil. As a result to individual consumption and seasonal heating periods during a year the high difference in the required heat varies significantly. The boiling system adjusts itself towards the changing heat consumption by operating in a stop and go modus with different operation time. A harmful amount of CO- an CxHy- emissions results from the start and stop operation during a year. By regulating automatically the power of the burner in a boiler system these emissions can be reduced. This operation mode is not practicable with standard boilers. While changing the power, contents of the flew gas can condense inside the boiler and corrode its wall. Especially in boilers for fuel oil combustion sulfuric acid can result from condensation because of sulfur contents in fuel oil. Investigations on 2 new boiler principles for fuel oil combustion and for a high power range were made. The first principle is a gas condensing boiler which is designed for permanent condensation and desulfurization of the flew gas. In this boiler a bubble column is used for heat and mass transfer. With the second principle a boiler can operate in a high power range without any condensation. Condensation is avoided to construct very simple designed boilers. The heat is transferred in special wickless Heat Pipes. With these two Heat Transfer Principles heat can be transferred in a power range of up to 1:10 nearly without a loss of the systems thermal effectivity.

Grantor dc:publisher

Shaker

Year dc:date

2001

Author dc:creator

• Hatzfeld, Oliver

Contributors dc:contributor

• Köhne, Heinrich

• info:eu-repo/classification/ddc/620
• Ingenieurwissenschaften
• Kleinfeuerungsanlage
• Ölfeuerung
• Heizkessel
• Modulbauweise
• Brennwertkessel
• Wärmeübertragung
• Blasensäule
• Thermosyphon

Statement dc:rights

• info:eu-repo/semantics/openAccess

Language dc:language

ger

Identifier

https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-121504%22

OAI identifier oai:identifier

oai:publications.rwth-aachen.de:59745