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A Thermodynamic Cycle with a Quasi-isothermal Expansion by S.P. Cicconardi; E. Jannelli; G. Spazzafumo is a Engineering article available to read on EtoBox.

What is A Thermodynamic Cycle with a Quasi-isothermal Expansion about?

The combustion of hydrogen and oxygen makes feasible a steam re-heating by mixing rather than by surface exchange. In such a way the use of several re-heaters is possible as well as the increase of re-heating temperature. The performances of steam power-plants with a large number of super-heaters (5-15) have been analyzed. Some theoretical considerations are also given in order to explain expectations, results and perspectives. Using so many super-heaters makes the expansion gradually approach isothermal conditions. A significant reduction of the efficiency gap with respect to the Carnot cycle was therefore expected. A thermal efficiency of 49.2% is achievable. Although this is far from the 61.6% of the Carnot cycle, the study points out some interesting aspects and suggests the basis for further development.

Who reads A Thermodynamic Cycle with a Quasi-isothermal Expansion?

Author

S.P. Cicconardi; E. Jannelli; G. Spazzafumo

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0360-3199)

Published

1998

Language

EN

Field

Engineering (Physical Sciences)