Abstract
An isochoric apparatus design which is amenable to full automation was analyzed to determine the magnitude of errors introduced by the experimental design and procedures. An equation of state (EOS) was used to calculate simulated experimental data to consider non-isochoric effects, by which the error introduced into energy and entropy calculations and the validity of the design were evaluated. The simulations were done for methane over a range of densities from 500 to 25,000 mol m[] (0.05 < p[] < 2.5) at temperatures from 200 to 400 K (1 < T[] < 2). The liquid and vapor two-phase region of an equimolar mixture of methane and carbon dioxide also was studied to evaluate the feasibility of determining enthalpies of vaporization for mixtures by analysis of isochoric p-V-T data.
Matabe, Akihiro (1999). Effects of some design parameters on the accuracy of "isochoric" measurements. Master's thesis, Texas A&M University. Available electronically from
https : / /hdl .handle .net /1969 .1 /ETD -TAMU -1999 -THESIS -M3755.