Combustion Heated Thermionic Systems

929355

08/03/1992

Event
27th Intersociety Energy Conversion Engineering Conference (1992)
Authors Abstract
Content
Thermionic cogeneration is developing as a new energy conservation option. The characteristics of thermionic systems using combustion of natural gas as heat source are studied. The - until now unused - high temperature potential of fuels can be applied in order to extract work using the high temperature thermionic conversion process. The high temperature of the emitter and the required large heat flux to it demand a high radiation temperature of the burner walls. As natural gas can only just reach these requirements the resulting system efficiency drops to an intolerable low level if the combustion air is not preheated and the heat from the flue gasses is not recuperated. An analytical study shows the effects of using the collector cooling air to preheat the combustion air and the influence of the heat exchanging capacities of the recuperator and the burner walls. It is shown that using the collector cooling air leads to a partial increase of the system performance and that using a recuperator increases the performance to the maximum attainable value. The geometry of the recuperator is discussed.
Meta TagsDetails
DOI
https://doi.org/10.4271/929355
Pages
7
Citation
Veltkamp, W., van Kemenade, H., and Sampers, W., "Combustion Heated Thermionic Systems," SAE Technical Paper 929355, 1992, https://doi.org/10.4271/929355.
Additional Details
Publisher
Published
Aug 3, 1992
Product Code
929355
Content Type
Technical Paper
Language
English