• norsk
    • English
  • English 
    • norsk
    • English
  • Login
View Item 
  •   Home
  • Fakultet for naturvitenskap (NV)
  • Institutt for kjemi
  • View Item
  •   Home
  • Fakultet for naturvitenskap (NV)
  • Institutt for kjemi
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Seebeck and Peltier coefficients of hydrogen electrodes related to the PEMFC

Zefaniya, Papy
Master thesis
View/Open
581706_FULLTEXT01.pdf (Locked)
581706_COVER01.pdf (Locked)
URI
http://hdl.handle.net/11250/247807
Date
2012
Metadata
Show full item record
Collections
  • Institutt for kjemi [1039]
Abstract
The coefficient of Thermoelectric power of hydrogen electrode as function of partial pressure has shownto be negative in accordance with the negative sign of state function of entropy with a deviation of almost halfits size. The value found was -48.+/-832:2 microV/K. The intercept was found to be about 666.+-487mV/K.This value of intercept can be used to determine the Peltier coefficient. The All the Seebeck coefficientswere measured positive with reference to the hot electrode. On the other hand, this power is produced onthe cost of absorbing the heat from the environment(heat reservoir). If this is related to electrolysis devices,this means more care should be taken on the hydrogen electrode which has an endothermic reaction to avoidthe freezing of the anode electrode. In the case of fuel cell, this will mean that extra care should be takenon both Hydrogen and Oxygen electrode, since all the adsorbed heat are thrown to the other side of wherereduction occurs. These heats have been defined as Peltier heats of single electrodes. Good knowledge ofthe magnitude of these heats will save the life of the expensive materials in fuel cell and will improve thedesign of thermocells which can in turn help the efficiency improvement of those cells. The temperatureprofile of the hydrogen electrode cell was analysed. The causes for drop in voltage were properly explained.The theory of non-equilibrium thermodynamics was adopted to explain the experiment done in this work.
Publisher
Institutt for kjemi

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit
 

 

Browse

ArchiveCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsDocument TypesJournalsThis CollectionBy Issue DateAuthorsTitlesSubjectsDocument TypesJournals

My Account

Login

Statistics

View Usage Statistics

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit