Compressibility of Isopentane with the Burnett Apparatus.

PρT and saturation properties of isopentane at T= (280–440) K and up to 200 MPa

“…Silberberg et al [4] also show a larger deviation, within ±0.4 %. The bellows variable volumometer results by Isaac et al [3] exhibit systematic deflection with larger deviation, within ±0.6 %.…”

“…The literature data by Silberberg et al [4], Gallagher et al [15], and Holcomb et al [16] for P s , and by Young and Thomas [1], Arnold et al [17], Gallagher et al [15], and Holcomb et al [16] for ρ′, are also plotted in both figures for comparison. For P s, our present values are in good agreement with the reliable data of Gallagher et al [15] and Holcomb et al [16].…”

“…The calculated density values were obtained using REFPROP ver.9.1 [14]. At low temperatures (280 to 360 K), as shown in figure 1, the density by Young and Thomas [1] and Silberberg et al [4] have larger values, with a relative deviation of up to 0.5 %. The results by Mopsik [6] are in good agreement with those calculated by the L-S model.…”

“…For ρ′, our results are also in good agreement with those of Gallagher et al [15] and Holcomb et al [16] [14] for isopentane). •, this work; ◇, Young and Thomas [1]; □, Bridgman [2]; ＊, Isaac et al [3]; +, Silberberg et al [4]; △, Mopsik [6]; ×, Houck and Heydemann [7,8]. MPa from the Lemmon-Span model (REFPROP ver.9.1 [14] for isopentane).…”

“…Isaac et al [3] measured 108 points of PρT data at higher temperatures of 373 to 573 K at up to 22 MPa using a bellows variable volumometer in 1954. Silberberg et al [4] …”