Gross Thermodynamics of Heat Engines in Deep Interior of Earth

Details Gross Thermodynamics of Heat Engines in Deep Interior of Earth Gross Thermodynamics of Heat Engines in Deep Interior of Earth

Apr 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975pnas...72.1555b&link_type=abstract

Proceedings of the National Academy of Sciences of the United States of America, Volume 72, Issue 4, pp. 1555-1558

Physics

26

Scientific paper

From the gross conservation laws of thermodynamics in a convecting material we derive a bound on the ratio of the rate of production of mechanical or magnetic energy to the rate of internal radioactive heating which drives the convection. Our bound for this ``efficiency'' depends on the temperatures in the material, and can exceed unity. Whether the bound can be attained by ``efficiencies'' in real fluids is not known, but a simple machine shows that ``efficiencies'' larger than unity are physically realizable. Our bound gives upper limits on the viscous dissipation in the earth's mantle and ohmic heating in the core, but these limits are too large to be physically interesting.

Affiliated with

Also associated with

No associations

Rating

Gross Thermodynamics of Heat Engines in Deep Interior of Earth does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Gross Thermodynamics of Heat Engines in Deep Interior of Earth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gross Thermodynamics of Heat Engines in Deep Interior of Earth will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-949039