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Articles 1 - 3 of 3
Full-Text Articles in Mechanical Engineering
Equation Of State Of Fluid Nh3 From P-V-T And Ultrasound Measurements To 12 Kbar, R. L. Mills, D. H. Lienbenberg, Richard Alan Lesar, Ph. Pruzan
Equation Of State Of Fluid Nh3 From P-V-T And Ultrasound Measurements To 12 Kbar, R. L. Mills, D. H. Lienbenberg, Richard Alan Lesar, Ph. Pruzan
Richard Alan Lesar
A piston-cylinder apparatus was used to measure the pressure, volume, temperature, and ultrasonic velocity (P,V,T,u) of fluid NH3 from 195 to 320 K at pressures up to 12 kbar. Over 1200 sets of P-V-T-u and P-V-T data were fitted to a Tait-type equation of state (EOS) by non-linear least-squares minimization. With quadratic terms in T for the two fitted parameters, the rms deviation is ± 0.2% in V and ± 0.9% in u, which is comparable to the experimental error. The simple Tait EOS is useful over the entire fluid range between the vaporization and melting curves up to T …
On The Thermodynamics Of Solar Energy Use, Edward A. Fletcher
On The Thermodynamics Of Solar Energy Use, Edward A. Fletcher
Journal of the Minnesota Academy of Science
Solar energy, coming from a 5800K heat reservoir, has thermodynamic advantages over fossil fuel combustion which are rarely recognized. This essay discusses the pertinent thermodynamics of chemical conversion processes. It points out the advantage of conducting endothermic processing at high temperatures and the unique character of sunlight as a source of process heat for high-temperature processing.
Saving Energy In Rural Maine : Or Who's Doing What On The Farm, Mane Department Of Agriculture
Saving Energy In Rural Maine : Or Who's Doing What On The Farm, Mane Department Of Agriculture
Maine Collection
Saving Energy In Rural Maine : Or Who's Doing What on the Farm
Compiled by Bettina M. Blanchard and Edited by Bill Seekins.
Maine Department of Agriculture, Food and Rural Resources, Division of Resources Development, Augusta, Maine, 1983.
Contents: List of Photographs and Diagrams / Introduction / Projects / 1. Wind / 2. Wood Heat Applications On the Farm / 3. Solar Applications / 4. Manure Handling and Waste Utilization / 5. Energy Efficient Cooling Methods / 6. Energy Saving In Field Operations / 7. Production and Use of Alternative Fuels / 8. Multi-Project Sites / Summary and Conclusions / …