A new flow calorimeter for the measurement of the isobaric enthapy increment and the isenthalpic Joule–Thomson effect. Results for methane and (methane + ethane)

Measurements of the isobaric enthalpy increment and the isenthalpic Joule–Thomson effect of (methane + water) and (methane + ethane + water)

“…In a previous paper, the results for the appropriate hydrocarbon subsystems, pure methane, and (methane + ethane), have been presented. (1) RESULTS FOR {yH2O + (1 − y)CH4}…”

“…The temperatures correspond to the temperature scale ITS-90 For purposes of comparison, the new results for pure methane (1) are also indicated. The values obtained show an increase with pressure and a change with composition at constant pressure which is overproportional to the water content.…”

“…The hydrocarbon branch is described in detail elsewhere. (1,4) In addition, the water branch had to be integrated into the existing apparatus. The schematic flow diagram of the enlarged facility is given in figure 1.…”

“…(1) In the calorimeter (item 5) the temperatures and pressures before and after the isobaric heating section are measured. From the heating section the mixture passes through an adjustable throttle valve and the temperature and pressure are measured again.…”

“…As discussed earlier, (1) it is desirable and necessary to incorporate experimental information about the caloric behaviour in the process of equation of state parameter adaptation. For highly non-ideal systems, like (hydrocarbon + water), this is the only a E-mail: christian.day.hit.fzk.de.…”