Thermodynamic modelling and analysis of low temperature Kalina cycle system for geothermal sources of India

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dc.contributor.author Gupta, AVSSKS
dc.contributor.author Deepak, K
dc.contributor.author Srinivas, T
dc.contributor.author Venkat, S Amerineni
dc.date.accessioned 2015-04-24T06:34:48Z
dc.date.available 2015-04-24T06:34:48Z
dc.date.issued 2014
dc.description.abstract Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014. en_ZA
dc.description.abstract The India is having good potential for geothermal energy and is yet to be explored. The non-isothermal boiling nature of ammonia-water mixture paved the way for the development of Kalina cycle systems. In this work the low temperature Kalina cycle system is investigated with the aim of generating electric power from the geothermal resource at Indian climatic conditions. The study of the process is done using computer software to obtain the data of energy and exergy efficiency that could be generated form the geothermal heat source. Parametric analysis is conducted to examine the effects of some key thermodynamic parameters on the system performance. One of these parameters, ammonia concentration at turbine inlet, appears to have an optimum value with respect to the maximum cycle efficiency and net power output at the given operating conditions. Results indicate that a maximum cycle efficiency of 11.75 % can be achieved with 0.95 and 0.70 ammonia concentration at the turbine inlet and separator inlet respectively, operating at 418 K source temperature under Indian climatic conditions. The corresponding specific power and exergy efficiency are found to be 80.5 kW and 39.77 % respectively. Under same operating conditions, the maximum net power output of 82.24 kW can be achieved at 0.92 ammonia concentration at the turbine inlet. The present analysis gives lot of insight to understand the design parameters to utilize geothermal energy. en_ZA
dc.description.librarian dc2015 en_ZA
dc.format.extent 7 pages en_ZA
dc.format.medium PDF en_ZA
dc.identifier.citation Gupta, AVSSKS, Deepak, K, Srinivas, T & Venkat, SA 2014, 'Thermodynamic modelling and analysis of low temperature Kalina cycle system for geothermal sources of India', Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014. en_ZA
dc.identifier.isbn 97817759206873
dc.identifier.uri http://hdl.handle.net/2263/44694
dc.publisher International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics en_ZA
dc.rights © 2014 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. en_ZA
dc.subject Geothermal energy en_ZA
dc.subject Non-isothermal boiling en_ZA
dc.subject Ammonia-water mixture en_ZA
dc.subject Kalina cycle systems en_ZA
dc.title Thermodynamic modelling and analysis of low temperature Kalina cycle system for geothermal sources of India en_ZA
dc.type Presentation en_ZA


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