Latent Heat of Vaporization of n-Pentane.

Kozicki, W.; Sage, B. H.

doi:10.1021/je60007a025

Cited by 13 publications

(6 citation statements)

References 8 publications

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“…It is apparent that the calorimetric measurements of Kozicki, et al [17] and the volumemetric data of Li and Canjar [13] are in good agreement while some of the earlier measurements by Sage and Lacey [10,11] yielded larger values of the residual volume.…”

Section: The Fi-pentane Systemmentioning

confidence: 63%

“…These latter data were interpolated from selected measurements [11][12][13], Figure 2.2 depicts the bubble-point volume as a function of temperature and presents the data of Li [13], Sage [10,11], and Young [9]. The data shown in figure 2 [17], were used to establish the volume of the saturated gas at temperatures below 350°K. …”

Section: The Fi-pentane Systemmentioning

confidence: 99%

“…After a review of the information presented in figure 2.3, primary emphasis was placed upon the measurements of Kozicki [17] and Li [13] although the data by Young [9] and Sage [10,11] [17] with the directly measured values of Li [13] Young [9] and Sage [10,11] [4]. These measurements of vapor pressure by Li [13] and Beattie [12] are probably as good as any reported and the sample purities were adequate to permit the estimated accuracy of vapor pressure measurements to be of the same order as that estimated by the author [12].…”

Section: The Fi-pentane Systemmentioning

confidence: 99%

“…Ambrose [14] 385 41 Partington [15] 385 5 API 44 [16] Young [9] Sage [11] Beattie [12] Li [13] Kozicki [17] 3. The Methane-n-Pentane System…”

Section: The Fi-pentane Systemmentioning

confidence: 99%

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Phase behavior in binary and multicomponent systems at elevated pressures :

Berry¹,

Sage²

1970

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Section: The Fi-pentane Systemmentioning

confidence: 63%

Section: The Fi-pentane Systemmentioning

confidence: 99%

Section: The Fi-pentane Systemmentioning

confidence: 99%

“…Ambrose [14] 385 41 Partington [15] 385 5 API 44 [16] Young [9] Sage [11] Beattie [12] Li [13] Kozicki [17] 3. The Methane-n-Pentane System…”

Section: The Fi-pentane Systemmentioning

confidence: 99%

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Phase behavior in binary and multicomponent systems at elevated pressures :

Berry¹,

Sage²

1970

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“…A number of works reported that vaporization fronts propagate with a constant velocity [18,19,[21][22][23][24]. These works employed water (the latent heat of evaporation L = 2260 kJ/kg) [21,25], refrigerants (L = 246.7 kJ/kg for refrigerant FC-C318 Freon) [22,26], acetone (L = 515 kJ/kg) [16,27], ethanol (L = 844 kJ/kg) [20,27], alkali metals (for potassium L = 2023 kJ/kg, and for cesium L = 497 kJ/kg) [20,28], npentane (L = 356 kJ/kg), [23,29], etc. [17,24,30].…”

Section: Introductionmentioning

confidence: 99%

Exponential vaporization fronts and critical heat flux in pool boiling

Staszel

Yarin

2018

International Communications in Heat and Mass Transfer

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Here we study the inception and propagation of vaporization fronts and transition to the critical heat flux (CHF) and film-boiling regime triggered by a steep, almost instantaneous increase in the heat release from a strip heater submerged in Novec 7300 liquid. The propagation path of the resulting vaporization front along the strip heater is measured and shown to be exponentially increasing in time, in distinction from the previous reports in literature claiming that the increase is only linear. Since the previous experiments employed such liquids as water, refrigerants, acetone, ethanol, and alkali metals, which possess relatively high latent heat of evaporation and thus require a relatively high power to be supplied, the heater burnout at the inception of the CHF and film boiling was too fast to allow for longer-time observations. Accordingly, the previous works observed only an extremely short-time asymptotics of the propagation process, which means the short-time expansion of the exponential function, which is linear. On the other hand, in the experiments with Novec 7300 liquid, the heater burnout is delayed due to a much lower latent heat of evaporation, thus allowing for a much longer observation of the propagation path, which appears to be exponentially increasing in time. The experiments were preceded by our theoretical prediction of such a behavior, and this theory is also described in the present work. Due to the fact that this theory has been corroborated by the experimental data, the theory yields an adequate explanation and description of the CHF trigger and film boiling inception.

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Correlation of latent heats of vaporization

Martin

Edwards

1965

AIChE Journal

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Generalized equations for vapor pressure and PVT behavior are used to develop a functional relationship between latent heat of vaporization and reduced temperature and pressure.This function leads to a graphical correlation which utilizes the slope M of the vapor-pressure curve at the critical point. The correlation gives the latent heat of vaporization at any temperature in the two-phase region for any substance for which the critical point and one vaporpressure point are known. The correlation i s particularly useful for prediction of latent heat of vaporization near the critical point by the use of information far removed from the critical. fncluded in the study are polar, nonpolar, organic, inorganic, and metallic substances. General predictions of latent heat as a function of temperature are within a few percent wherever comparisons can be made with experimental data.The prediction of latent heats of vaporization has been the objective of many investigations. Shenvood and Reid ( 1 ) and Fishtine (2, 3) present excellent summaries of previous work in this area. Only three correlations most closely related to the method developed in this paper will be mentioned. Meissner ( 4 ) presented a graphical representation of AHJT, as a function of the reduced temperature and pressure. Watson ( 5 ) developed an exponential expression to predict the latent heat of vaporization of any temperature if the latent heat at one temperature and the critical temperature of the substance are known. Su (6) proposed a correlation for latent heat of vaporization based on a reference state. He suggested the use of a generalized vapor-pressure plot of log P, vs. 1/T, to give the ratio of the latent heat at any temperature to that at the reference point.

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Latent Heat of Vaporization of n-Pentane.

Cited by 13 publications

References 8 publications

Phase behavior in binary and multicomponent systems at elevated pressures :

Phase behavior in binary and multicomponent systems at elevated pressures :

Exponential vaporization fronts and critical heat flux in pool boiling

Correlation of latent heats of vaporization

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