Low-Temperature Calorimeter for Measuring Enthalpy Changes in Gas Mixtures under Pressure

A Flow Calorimeter for Condensable Gases at Low Temperatures and High Pressures. 1. Design and Evaluation

“…A survey of the operating conditions of a number of flow calorimeters is given in Table I. Most of the data have been taken directly from the literature (Jones et al, 1962;Mather et al, 1966;Manker et al, 1964;Jenkins and Berwaldt, 1963;Dolan et al, 1968; Clark and McKinley, 1967; Wilson and Barton, 1967;Saghal et al, 1965). However, in some cases the energy level WT and the flow rates were not specified, so we have derived these values from the experimental data given.…”

Measurement of Enthalpy Differences with a Flow Calorimeter

“…The principle of operation is straightforward. The isobaric technique is that of Nelson and Holcomb (1953) and Jenkins and Berwaldt (1963). The isothermal and total enthalpy measurements employ the technique of Wiener (1966).…”

An electrical-matching, boil-off flow calorimeter

“…However, Sahgal et al (1965), Wiener (1966), Clark and McKinley (1967), and Sagara et al (1977) have used liquid nitrogen for low-temperature measurements while Sood and Haselden (1972) have used liquid oxygen. Jenkins and Berwaldt (1963) have compiled a list of possible reference fluids together with recommended temperature ranges.…”