Druckverlust in Füllkörperschüttungen bei hohen Berieselungsdichten

Teutsch, Theo

doi:10.1002/cite.330360514

Cited by 19 publications

(10 citation statements)

References 3 publications

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“…Hence, the use of a correction factor of 3/4 in Eq. (4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20) has proved to be useful, as it leads to a considerably better conformance between the calculated and experimental values, see Table 4-3, with the exception of some experimental data taken at extremely low liquid loads, which cannot be sufficiently described by any of the methods available.…”

Section: Discussion Of Experimental Results -Laminar Liquid Flowmentioning

confidence: 99%

“…is expressed by the dimensionless numbers Re L , Re V , Fr L and/or empirical power law models. Please refer to Teutsch [3,16], Weiß et al [11], Maćkowiak [17], Leva [20], Kast [45], Kolev [46], Beck [47] and Kleinhükelkotten [48] and others, see Table 4-1b Table 4-1c.…”

Section: Literature Overviewmentioning

confidence: 99%

“…The accuracy of other methods [1,7,[46][47][48] in the same range is approximately similar. Schumacher [19], Billet [5], Teutsch [16] and Kast [45] Raschig rings made of metal and ceramic, Pall rings made of metal Billet [5], Teutsch [16], et al with Eckert's correlation Molzahn, Wolf [25] …”

Section: Literature Overviewmentioning

confidence: 99%

“…Teutsch [16] ceramic Raschig rings, Pall rings, saddles d = 0.025−0.050 m 0.5 2 air/water below loading line…”

Section: Literature Overviewmentioning

confidence: 99%

“…Figure 4-3 shows a new diagram, created by Mersmann and Deixler [44], which can be used to estimate the entire liquid hold-up h L , if the dimensionless liquid load B L , see Eq. (4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16), is known. The diagram is based on experimental data, mostly for ceramic Raschig rings, with a dimension of d ≤ 0.035 m, taken by Gelbe [22], Blaß and Kurtz [42,43] as well as Mersmann [21].…”

Section: Liquid Hold-up 187mentioning

confidence: 99%

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Pressure Drop of Irrigated Random and Structured Packings

Maćkowiak¹

2009

Fluid Dynamics of Packed Columns

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It is important to know the total pressure drop p of the irrigated packed bed when designing packed columns for gas/liquid systems in counter-current flow of the phases. In absorption as well as desorption processes, the total pressure drop p of the packing determines the blower capacity and thus the major part of the operating costs of the process. In rectification, the sum of the top pressure p T and the total pressure drop p gives the bottom pressure p W , which determines the bottom temperature t W . The bottom temperature, in turn, determines the effective temperature difference, at a given heating medium temperature, at which the reboiler in the distillation column must be operated.High pressure drops are likely to result in significant changes in the relative volatility along the column height, in particular in vacuum rectification processes with a high number of theoretical stages [5, 32], which means that the reflux ratios R, required to achieve the specified product purity, are considerably higher than in the case of low pressure drops p. Higher reflux ratios R lead to an increase in steam consumption and therefore in operating costs.The total pressure drop of the packing p at a known packing height H, the calculation of which was the topic of studies such as [13][14][15], is given by the product p = ( p/H)·H, in which the quotient p/H stands for the pressure drop per 1 m height of the packed bed.Based on the known pressure drop p/H and the specific pressure drop p/n t , Eq. (1-4) can be used to calculate the theoretical separation efficiency of the random or structured packing n t /H, and therefore the total height of the packed bed H, if the number of theoretical stages n t is known.

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Section: Discussion Of Experimental Results -Laminar Liquid Flowmentioning

confidence: 99%

Section: Literature Overviewmentioning

confidence: 99%

Section: Literature Overviewmentioning

confidence: 99%

“…Teutsch [16] ceramic Raschig rings, Pall rings, saddles d = 0.025−0.050 m 0.5 2 air/water below loading line…”

Section: Literature Overviewmentioning

confidence: 99%

Section: Liquid Hold-up 187mentioning

confidence: 99%

See 3 more Smart Citations

Pressure Drop of Irrigated Random and Structured Packings

Maćkowiak¹

2009

Fluid Dynamics of Packed Columns

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Distillation and Partial Condensation

Sattler

Feindt

1995

Thermal Separation Processes

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Pressure drop and flooding in packed columns operating at high pressures

Krehenwinkel

Knapp

1987

Chem Eng & Technol

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Correlations for pressure drop and upper capacity limit (flooding) are useful for the design of packed columns. Available correlations are based on the results of measurements made at atmospheric pressure. Extrapolation to higher pressures is not recommended. Therefore, systematic experimental investigations were carried out in a pilot plant at pressures of up to 100 bar. The experimental equipment and techniques, evaluation methods, and some characteristic experimental results are presented.

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Druckverlust in Füllkörperschüttungen bei hohen Berieselungsdichten

Abstract: entsprechende Wert hoher liegt als bei dem Bimsbeton mit 1035 kg/ms. Bei den beiden H o 1 z s o r t e n , deren vollkommeneWassersattigung nicht erreicht werden konnte, ist die Warmeleitfahigkeit mit Hilfe mehrerer MeBpunkte bis zur berechneten Porositat extrapoliert.

Cited by 19 publications

References 3 publications

Pressure Drop of Irrigated Random and Structured Packings

Pressure Drop of Irrigated Random and Structured Packings

Distillation and Partial Condensation

Pressure drop and flooding in packed columns operating at high pressures

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