Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.604052
Title: Development of a solid state sensor for stratospheric methane and hydrogen
Author: Hill, J. G. T.
Awarding Body: University of Cambridge
Current Institution: University of Cambridge
Date of Award: 2006
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Abstract:
Methane and water are important trace gases in the stratosphere and by discussing their sources, sinks, chemistry and transport a case will be made for improved measurements in the lower stratosphere and upper troposphere. Various methods of measuring water vapour and methane will be described and a novel technique for measuring combustable hydrocarbons and hydrogen will be introduced. It will be demonstrated that methane and hydrogen can be catalytically oxidising into a stoiciometric amount of water vapour which can then be measured using a frost point hygrometer. The catalyst will need to be kept at ~450°C to get 100% oxidation of the available methane. The experiment results will be complimented with modelling of the oxidation process in the reactor. A laboratory instrument with suitable characteristics to form the basis of a balloon sondé will be presented as will a prototype balloon instrument.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.604052  DOI: Not available
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