Reply to comment of Bister and co-authors on the critique of the dissipative heat engine

Details Reply to comment of Bister and co-authors on the critique of the dissipative heat engine Reply to comment of Bister and co-authors on the critique of the dissipative heat engine

2010-10-27

arxiv.org/abs/1010.5753v1

Physics

Atmospheric and Oceanic Physics

3 pages

Scientific paper

The dissipative heat engine (DHE) is based on a Carnot cycle with external heat Qin received at temperature Ts and released at To < Ts. In contrast to the classical Carnot engine, mechanical work Ad in the DHE is not exported to external environment but dissipates to heat within the engine. Makarieva et al. (2010, hereafter MGLN) asserted that the laws of thermodynamics prohibit an increase of Ad beyond the Carnot limit: Ad <= epsilon Qin, epsilon = (Ts - To)/Ts. Bister et al. (2010, hereafter BRPE) counterargued that such an increase is possible and that hurricanes can be viewed as a natural DHE. Here we show that the arguments of BRPE are not consistent with the energy conservation law and thus do not refute MGLN's claims.

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