Prof. Dr. Wilfried Roetzel

Berücksichtigung von Wärmeleitungswiderständen in den Speichermassen von Regeneratoren
Authors: W. Roetzel, C. Na Ranong
Forsch Ingenieurwes (2020), https://doi.org/10.1007/s10010-020-00404-3

Evaluation of temperature oscillation experiment for the determination of heat transfer coefficient and dispersive Peclet number
Authors: W. Roetzel, C. Na Ranong
Archives of Thermodynamics 39 (2018), No. 1, 91- 110; DOI: 10.1515/ aoter-2018-0005.

Evaluation method of single blow experiment for the determination of heat transfer coefficient and dispersive Peclet number
Authors: W. Roetzel, C. Na Ranong
Archives of Thermodynamics, Vol. 36 (2015), No.4, 3-24. DOI: 10.1515/ aoter-2015-0029

Evaluation of residence time measurements on heat exchangers for the determination of dispersive Peclet numbers
Authors: W. Roetzel, C. Na Ranong
Archives of Thermodynamics 35 (2014), No. 2, 103-115, ISSN: (online) 2083-6023, DOI: 10.2478/aoter-2014-0016

Logarithmic mean pressure difference – A new concept in the analysis of the flow distribution in parallel channels of plate heat exchangers
Authors: K. Shaji, B. P. Rao, B. Sunden, W. Roetzel, S .K. Das
Heat Transfer Engineering (2012) 33: 8, 669-681, dx.doi.org/10.1080/01457632.2011.635564

Application of Danckwerts-type boundary conditions to the modelling of the thermal behaviour of metal hybrid reactors
Authors: C. Na Ranong, G. Lozano, J. Hapke, W. Roetzel, G. Fieg, J. v. Colbe
Chemical Engineering Science 66 (2011), 4654-4664, DOI 10.1016/j.ces.2011.06.021

New axial dispersion model for heat exchanger design
Authors: W. Roetzel, C, Na Ranong, G.Fieg
Heat Mass Transfer (2011) 47: 1009-1017, DOI 10.1007/s00231-011-0847-z, ISSN 0947-7411

Mean overall heat transfer coefficient in heat exchangers allowing for temperature-dependent fluid properties
Authors: W. Roetzel, X. Luo
Heat Transfer Engineering 32 (2011), 241-150, © Taylor & Francis, ISSN 0145-7632, print / 1521-0537 online,
DOI: 10.1080/01457631003769278

Modellgestützte Simulation von Metallhydridreaktoren als Wärme- und Wasserstoffspeicher
Authors: C. Na Ranong, J. Hapke, M. Höhne, W. Roetzel, G. Fieg
Chemie Ingenieur Technik 2010, 82, No. 9, 1608-1609

Thermal design of multi-fluid mixed-mixed cross-flow heat exchangers
Authors: W. Roetzel, X. Luo
Heat and Mass Transfer (2010) 46: 1077-1085, DOI 10.1007/s00231-010-0682-7, ISSN 0947-7411

Numerical calculation of the transient behaviour of two pure cross-flow heat exchangers coupled by a circulating flow stream
Authors: C. Na Ranong, J. Hapke, W. Roetzel
Heat and Mass Transfer (2010) 46: 1069-1075, DOI 10.1007/s00231-010-0681-8, ISSN 0947-7411

Sythesis of multi-stream heat exchanger network for multi-period operation with genetic/simulated annealing algorithms
Authors: X. Ma, P. Yao, X. Luo, W. Roetzel
Applied Thermal Engineering 28, 8-9 (2008), 809-823

A new and efficient NLP formulation for synthesizing large-scale multi-stream heat exchanger networks
Authors: W. Xiao, P.-J. Yao, X. Luo, W. Roetzel
Journal of the Chinese Institute of Chemical Engineers 37, 4 (2006), 383/394

Synthesis of large-scale multi-stream heat exchanger networks based on stream pseudo temperature
Authors: W. Xiao, H.-G. Dong, X.-Q. Li, P.-J. Yao, X. Luo, W. Roetzel
Chinese Journal of Chemical Engineering 14, 5 (2006), 574/583

Steady-state and transient behaviour of two heat exchangers coupled by a circulating flowstream
Authors: C. Na Ranong, J. Hapke, W. Roetzel
Heat Transfer Engineering, 26 (2005), No. 7, 36/50, ISSN 0145-7632 print/1521-0537 online,
DOI: 10.1080/01457630590959449

Thermal analysis of heat exchanger networks
Authors: W. Roetzel, X. Luo
Archives of Thermodynamics, 26 (2005), No. 1, 5-16

A composite heat transfer model for pool boiling on a horizontal tube at moderatepressure
Authors: S. K. Das, W. Roetzel
Can. J. Chem. Engng. 82(2004), 316/322

The axial dispersion model for heat transfer equipment: A review
Authors: S.K. Das, W. Roetzel
Int. J. Transport Phenomena 6 (2004), 23-49.

Pool boiling of nano-fluids on horizontal narrow tubes
Authors: S.K. Das, N. Putra, W. Roetzel
Int. J. Multiphase Flow 29 (2003), 1237-1247.

A composite heat transfer model for pool boiling on a horizontal tube at moderate pressure
Authors: S. K. Das, W. Roetzel
Canadian J. Chem. Engng., 82, 316-322, 2004.

Synthesis of flexible heat exchanger networks with stream splits based on ranges of stream supply temperatures and heat capacity flow rates
Authors: Z.-H. Li, X. Luo, B. Hua, W. Roetzel
Chinese Journal of Chemical Engineering 12, 2 (2004), 240-246.

Multi-stream heat exchanger networks synthesis with improved genetic algorithm
Authors: G.-F. Wei, Y.-Q. Sun, G.-H. He, P.-J. Yao, X. Luo, W. Roetzel
Journal of Dalian University of Technology 44, 2 (2004), 218/223.

A parallel genetic algorithm / simulated annealing algorithm for synthesizing multistream heat exchanger networks
Authors: G.-F. Wei, P.-J. Yao, X. Luo, W. Roetzel
Journal of the Chinese Institute of Chemical Engineers 35, 3 (2004), 285/297.

Study an multi-stream heat exchanger networks synthesis with genetic algorithm
Authors: G.-F. Wei, P.-J. Yao, X. Luo, W. Roetzel
Journal of Chemical Engineering of Chinese Universities 17, 4 (2003), 425/430 (in Chinese).

On the application of the Wilson Plot Technique
Authors: W. Roetzel, C. Na Ranong
Heat and Technology, 21, 125-130, 2003.

Natural convection of nano-fluids
Authors: N. Putra, W. Roetzel, S. K. Das
Heat and Mass Transfer, 39, 775-784, 2003.

Temperature dependence of thermal conductivity enhancement for nanofluids
Authors: S. K. Das, N. Putra, P. Thiesen, W. Roetzel
Trans. ASME, J. Heat Transfer, 125, 567-574, 2003.

Experiment and analysis for non-Fourier conduction in materials with non-homogeneous inner structure
Authors: W. Roetzel, N. Putra, S. K. Das
Int. J. Therm. Sci., 42, 541-552, 2003.

Pool boiling characteristics of nano-fluids
Authors: S. K. Das, N. Putra, W. Roetzel
Int. J. Heat and Mass Transfer, 46, 851-862, 2003.

Dynamic behaviour of one-dimensional flow multistream heat exchangers and their networks
Authors: X. Luo, X. Guan, M. Li, W. Roetzel
Int. J. Heat and Mass Transfer, 46, 705-715, 2003.

Steady-state and transient behaviour of two heat exchangers coupled by a circulating flowstream
Authors: C. Na Ranong, W. Roetzel
Int. J. Therm. Sci., 41, 1029-1043, 2002.

A general solution for one-dimensional multistream heat exchangers and their networks
Authors: X. Luo, M. Li, W. Roetzel
Int. J. Heat Mass Transfer, 45, 2695-2705, 2002.

Hyperbolic axial dispersion model for heat exchangers
Authors: R. K. Sahoo, W. Roetzel
Int. J. Heat Mass Transfer, 45, 1261-1270, 2002.

Studies on axial dispersion of concentration profiles in cascaded stirred tanks
Authors: S. K. Das, A. Roy, F. Balzereit
Int. J. Heat Exchangers, 2, 113-128, 2001.

Thermal design of spiral heat exchangers
Author: Th. Bes
Int. J. Heat Exchangers, 2, 59-96, 2001.

Prediction of the thermal performance of multistream plate-fin heat exchangers
Authors: X. Luo, K. Li, M. Li
Int. J. Heat Exchangers, 2, 45-59, 2001.

The single-blow transient testing technique considering longitudinal core conduction and fluid dispersion
Authors: X. Luo, W. Roetzel, U. Lüdersen
Int. J. Heat Mass Transfer, 44, 121-129, 2001.

Convective heat transfer test of supercritical carbon dioxide in flat pipe using extended temperature oscillation technique (in chinesischer Sprache)
Authors: H. Zhang, Y. Xuan, W. Roetzel
Journal of Chemical Industry and Engineering, 52, 630-634, 2001.

The single-blow transient testing technique for plate-fin heat exchangers
Authors: X. Luo, W. Roetzel
Int. J. Heat Mass Transfer, 44, 3745-3753, 2001.

Professor Dr.-Ing. Dr. h.c. mult. K. Stephan on his 70th birthday
Authors: H. Auracher, E. Hahne, K. Lucas, W. Roetzel
Int. J. Heat Mass Transfer 44 (2001), 893/8.

To Professor Dr.-Ing. Dr. h.c. mult Karl Stephan on his 70th birthday
Authors: H. Auracher, K. Lucas, W. Roetzel
Int. J. Therm. Sci. 39 (2000), 849/851.

Dynamic simulation of plate-fin heat exchangers using a moving grid algorithm
Authors: X. Luo, W. Roetzel
Int. J. of Heat Exchangers, 1, 151-162, 2000.

Axial dispersion in shell-and-tube heat exchangers
Authors: W. Roetzel, F. Balzereit
Int. J. Therm. Sci., 39, 1028-1038, 2000.

Conceptions for heat transfer correlation of nanofluids
Authors: Y. Xuan, W. Roetzel
Int. J. Heat Mass Transfer, 43, 3701-3707, 2000.

Dynamic behaviour of matrix heat exchangers
Authors: Y. Xuan, W. Roetzel
Int. J. of Heat Exchangers, 1, 19-30, 2000.

Axial dispersion models for heat exchangers
Authors: W. Roetzel, C. Na Ranong
Int. J. of Heat and Technology – Calore e Tecnologia, 18, 7-17, 2000.

Consideration of maldistribution in heat exchangers using the hyperbolic dispersion model
Authors: W. Roetzel, C. Na Ranong
Chemical Engineering and Processing, 38, 675-681, 1999.

Nonlinear measurement of thermal properties of a multilayer fluid specimen by temperature oscillation techniques
Authors: W. Czarnetzki, W. Roetzel
High Temperatures-High Pressures 30(1998), 247/252; 14 ECTP Proceedings, 625/630

Second law analysis of a plate heat exchanger with an axial dispersive wave
Authors: S. K. Das, W. Roetzel
Cryogenics 38 (1998), 791/798

Propagation of third sound wave in fluid: hypothesis and theoretical foundation
Authors: W. Roetzel, B. Spang, X. Luo, S. K. Das
Int. J. Heat Mass Transfer 41(1998), 2769/2780

Extended temperature oscillation measurement technique for heat transfer and axial dispersion coefficients
Authors: W. Roetzel, X. Luo
Rev Gén Therm 37(1998), 277/283

Theoretical investigation on cross-flow heat exchangers with axial dispersion in one fluid
Authors X. Luo, W. Roetzel
Rev Gén Therm 37(1998), 223/233

Transient response of the human limb to an external stimulus
Authors: W. Roetzel, Y. Xuan
Int. J. Heat Mass Transfer 41(1998), 229/239

Determination of axial dispersion coefficients in plate heat exchangers using residence time measurements
Authors: W. Roetzel, F. Balzereit
Rev Gén Therm 36(1997), 635/648

Transient holographic measurement of the gas diffusion coefficient in water
Authors: W. Roetzel, D. Blömker, W. Czarnetzki
High Temperatures – High Pressures 29(1997), 149/154; 14 ECTP Proceedings, 147/152

Bioheat equation of the human thermal system
Authors: Y. Xuan, W. Roetzel
Chem. Eng. Technol. 20(1997) 268/276

Messung binärer Diffusionskoeffizienten von Gasen in Wasser mit Hilfe der holographischen Interferometrie
Authors: W. Roetzel, D. Blömke, W. Czarnetzki
Chemie Ingenieur Technik 69(1997), 5197, 674/678

Meßverfahren zur Bestimmung von axialen Dispersionskoeffizienten in Plattenwärmeübertragern
Authors: F. Balzereit, K. Köllmann, W. Roetzel
Uniforschung, Forschungsmagazin der Universität der Bundeswehr Hamburg, 6/7(1996/97), 53/61

Messen mit Temperaturschwingungen in der Wärmeübertragung
Authors: W. Roetzel, W. Czarnetzki und M. Wandelt
Uniforschung, Forschungsmagazin der Universität der Bundeswehr Hamburg, 5(1995), 52/56

Dynamic behavior of plate heat exchangers – Experiments and modeling
Authors: S. K. Das, B. Spang, W. Roetzel
Transactions of the ASME, Journal of Heat Transfer 117 (1995), 859/864

Calculation of laminar film condensation in/on inclined elliptical tubes
Autoren: G. P. Fieg, W. Roetzel
Int. J. Heat Mass Transfer 37(1994), 619/624

Exergetic analysis of plate heat exchanger in presence of axial dispersion in fluid
Authors: S. K. Das, W. Roetzel
Cryogenics 35(1995), 3/8

Axiales Dispersionsmodell für Wärmeübertrager mit endlicher Ausbreitungsgeschwindigkeit thermischer Störungen
Authors: W. Roetzel, B. Spang
Uniforschung, Forschungsmagazin der Universität der Bundeswehr Hamburg 3 (1993/94), 37/47

Temperature oscillation techniques for simultaneous measurement of thermal diffusivity and conductivity
Authors: W. Czarnetzki, W. Roetzel
International Journal of Thermophysics 16(1995), 413/422

Flow length effect in heat exchangers with turbulent flow at low Prandtl number
Authors: S. K. Das, B. Spang, W. Roetzel
Int. Comm. Heat Mass Transfer 22 (1995), No. 5, 671/681

Neue Näherungsgleichung zur einheitlichen Berechnung von Wärmeübertragern
Authors: B. Spang, W. Roetzel
Heat and Mass Transfer 30(1995) 417/422

Hyperbolic axial dispersion model: concept and its application to a plate heat exchanger
Authors: W. Roetzel, S. K. Das
Int. J. Heat Mass Transfer 38(1995), 3065/3076

Laminarer Wärmeübergang bei Gegen- und Gleichstromführung in Wärmeübertragern
Authors: B. Spang, W. Roetzel
Chem.-Ing.-Tech. 67(1995), 978/980

Thermal estimation of matrix heat exchangers
Authors: Y. Xuan, W. Roetzel
Journal of Enhanced Heat Transfer 2 (1995), 33/41

Untersuchung des Flüssigkeitsentrainments in Wärme- und Stoffaustauschapparaten mit Hilfe einer optischen Meßmethode
Authors: B. Spang, C. Marvillet, W. Roetzel
Uniforschung, Forschungsmagazin der Universität der Bundeswehr Hamburg 3(1993/94), 75/83

Dynamic analysis of plate heat exchangers with dispersion in both fluids
Authors: S. K. Das, W. Roetzel
Int. J. Heat Mass Transfer 38(1995), 1127/1140

Transient measurement of heat transfer coefficients inside a tube
Authors: Y. Xuan, W. Roetzel
Journal of Chemical Industry and Engineering (China) 45(1994)6, 756/759

Measurement of heat transfer coefficient in plate heat exchangers using a temperature oscillation technique
Authors: W. Roetzel, S. K. Das, X. Luo
Int. J. Heat Mass Transfer 37(1994), 325/331

Effect of baffle/shell leakage flow on heat transfer in shell-and-tube heat exchangers
Authors: W. Roetzel, D. W. Lee
Experimental Thermal and Fluid Science 8(1994), 10/20

Measurement of heat transfer coefficient and axial dispersion coefficient using temperature oscillations
Authors: W. Roetzel, X. Luo, Y. Xuan
Experimental Thermal and Fluid Science 7(1993), 345/353

Refrigerants as working fluid in a CPC collector system for electric power generation
Authors: S. K. Acharya, W. Roetzel, J. Hussain
Renewable Energy 3(1993), 757/761

Stationary and dynamic simulation of multipass shell and tube heat exchangers with the dispersion model for both fluids
Authors: Y. Xuan, W. Roetzel
Int. J. Heat Mass Transfer 36(1993), 4221/4231

Verlauf der Fluidtemperaturen im Querstromrohrbündel
Authors: Th. Bes, W. Roetzel
Wärme- und Stoffübertragung 28(1993), 457/463

Transient behaviour of shell and tube heat exchangers
Authors: W. Roetzel, Y. Xuan
Chem. Eng. Technol. 16(1993), 296/302

The effect of heat conduction resistances of tubes and shells on transient behaviour of heat exchangers
Authors: W. Roetzel, Y. Xuan
Int. J. Heat Mass Transfer 36(1993), 3967/3973

Experimental investigation of leakage in shell-and-tube heat exchangers with segmental baffles
Authors: W. Roetzel, D. Lee
Int. J. Heat Mass Transfer 36(1993), 3765/3771

Temperature oscillation technique for determination of local convective heat transfer coefficients without fluid temperature measurement
Authors: W. Roetzel, S. Prinzen, M. Wandelt
Chem. Eng. Technol. 16(1993), 89/93

The effect of core longitudinal heat conduction on the transient behaviour of multipass shell and tube heat exchangers
Authors: W. Roetzel, Y. Xuan
Heat Transfer Engineering 14(1993), 52/61

Dynamics of shell-and-tube heat exchangers to arbitrary temperature and step flow variations
Authors: Y. Xuan, W. Roetzel
AIChE Journal 39(1993), 413/421

Thermal theory of the spiral heat exchanger
Authors: Th. Bes, W. Roetzel
Int. J. Heat Mass Transfer 36(1993), 765/773

Gas diffusion coefficients in electrolyte solutions
Authors: E.-C. Costea, F. Corvalan, W. Roetzel
High Temperatures – High Pressures 23 (1991), 12 ETPC Proceedings, 589/594

Analysis of transient behaviour of multipass shell and tube heat exchangers with the dispersion model
Authors: W. Roetzel , Y. Xuan
Int. J. Heat Mass Transfer 35 (1992), 2953/2962

Distribution of heat flux density in spiral heat exchangers
Authors: Th. Bes, W. Roetzel
Int. J. Heat Mass Transfer 35(1992), 1331/1347

Transient response of parallel and counterflow heat exchangers
Authors: W. Roetzel, Y. Xuan
Journal of Heat Transfer, Transactions of the ASME 114 (1992), 510/512

Transient behaviour of multipass shell-and-tube heat exchangers
Authors: W. Roetzel, Y. Xuan
Int. J. Heat Mass Transfer 35(1992), 703/710

Laminare Filmkondensation an einer senkrechten ebenen Wand mit örtlich veränderlicher Oberflächentemperatur
Author: W. Roetzel
Wärme- und Stoffübertragung 27(1992), 173/175

Thermal performance of split-flow heat exchangers
Authors: B. Spang,Y. Xuan, W. Roetzel
Int. J. Heat Mass Transfer 34 (1991), 863/874

Thermal analysis of shell and tube exchangers with divided-flow pattern
Authors: Y. Xuan, B. Spang, W. Roetzel
Int. J. Heat Mass Transfer 34 (1991), 853/861

Berechnung der Diffusionskoeffizienten von Gasen in wäßrigen Elektrolytlösungen mit Hilfe einer kinetischen Theorie
Authors: F. Corvalán, E. Costea, W. Roetzel
Chem.-Ing.-Tech. 63 (1991), 154/155

Über das thermische Verhalten von Rohrbündelwärmeübertragern mit Segmentumlenkblechen
Authors: B. Spang, W. Roetzel
Chem.-Ing.-Tech. 63 (1991), 134/135

Verbessertes Diagramm zur Berechnung von Wärmeübertragern
Authors: W, Roetzel, B. Spang
Wärme- und Stoffübertragung 25(1990), 259/264

Eine einfache Methode zur Bestimmung der Temperaturleitzahl mit Temperaturschwingungen
Authors: S. Prinzen, Y. Xuan, W. Roetzel
Wärme- und Stoffübertragung 25(1990), 209/214

Thermische Auslegung von Wärmeübertragersystemen mit umlaufendem Wärmeträger
Author: W. Roetzel
Brennstoff-Wärme-Kraft (BWK) 42(1990) Nr. 5, 254/258

Wärmeübergang und Flutungsverhalten bei der Kondensation in geneigten Rohren
Authors: J. Fürst, W. Roetzel

Chem.-Ing.-Tech. 62(1990) Nr. 2, 131

Ermittlung von Wärmeüberganskoeffizienten in durchströmten Rohren durch Analyse von Temperaturschwingungen
Author: W. Roetzel
Chem.-Ing.-Tech. 61(1989) Nr. 12, 990/991

Lösung von Gasen in Meerwasser
Authors: W. Roetzel, F. Corvalán, B. Spang
Uniforum, Zeitung der Universität der Bundeswehr Hamburg, 2. Jg. Ausg. 2 (1989), 14/16

Measurement of heat transfer coefficients in tubes by temperature oscillation analysis
Author: W. Roetzel
Chem. Eng. Technol. 12(1989), 379/387

Thermal calculation of multipass shell and tube heat exchangers
Authors: W. Roetzel, B. Spang
Chemical Engineering Research and Design (Chem. Eng. Res. Des.), Vol. 67, March 1989, 115/120

Analytische Berechnung von Wärmeübertragern mit nachträglicher Berücksichtigung temperaturab­hängiger Wärmekapazitäten
Author: W. Roetzel
Wärme- und Stoffübertragung 23 (1988), 175/177

Thermische Berechnung von dreigängigen Rohrbündelwärmeübertragern mit zwei Gegenstrom­durchgängen gleicher Größe
Author: W. Roetzel
Wärme- und Stoffübertragung 22 (1988), 3/11

Untersuchung an einem Verdampfer-Kondensator mit langsam rotierenden, scheibenförmigen Heizflächen
Authors: M. Pullich, W. Roetzel
Chem.-Ing.-Tech. 59 (1987), 878/879

Beulrohre mit verbessertem Wärmeübergang zum Einsatz in Wärmeaustauschern
Autoren: J. E. Roth und W. Roetzel
VDI-Berichte Nr. 607 (1986), 1107/1130

Beulrohre mit verbessertem Wärmeübergang zum Einsatz in Wärmeaustauschern
Authors: J. E. Roth, W. Roetzel
Chem.-Ing.-Tech. 58 (1986), 150/151

Wärmeübergang und Druckverlust in glatten und gebeulten Rohren
Authors: W. Roetzel, J. E. Roth
Wärme- und Stoffübertragung 20 (1986), 97/104

Theorie eines kalorischen Durchflußmeßverfahrens
Author: W. Roetzel
VDI-Forschungsheft 632 (1985), 18/22

Herleitung der Energiegleichung für einphasige strömende Fluide
Authors: W. Roetzel, J. Ahrendts
Wärme- und Stoffübertragung 19 (1985), 203/204

Comments on the paper of A.L. London and R.K. Shah: Costs of Irreversibilities in Heat Exchanger Design
Author: W. Roetzel
(Heat Transfer Engineering, Vol. 4, No. 2, 1983).
Heat Transfer Engineering, Vol. 5, Nos. 3 – 4, 1984, 15/17 und Vol. 6, No. 2, 1985, 73

Wärmeaustauscher
Authors: M. Pullich, W. Roetzel
Brennstoff-Wärme-Kraft (BWK), 35 (1983), Nr. 4, S. 193/198

Wärmeaustauscher
Authors: J. E. Roth, W. Roetzel
Brennstoff-Wärme-Kraft (BWK), 34 (1982), Nr. 4, S. 233/241

Wärmeübergang bei der Kondensation
Authors: J. E. Roth, W. Roetzel
Fortschritte der Verfahrenstechnik, Bd. 19 (1981), Abt. A, 61/80

Verringerung des Lüftungswärmebedarfs bei natürlicher Lüftung von Gebäuden durch Verwendung luftdurchlässiger poröser Außenwände
Author: W. Roetzel
Heizung Lüftung/Klimatechnik Haustechnik (HLH) 32 (1981), Nr. 2, 45/48

Reaktionskalorimeter und Reaktionsrührbehälter mit verbessertem Wärmedurchgangskoeffizienten
Authors: F. Mirtsch, R. Powierski, W. Roetzel
Thermochimica Acta 40 (1980), 167/176

Wärmeübergang und Druckverlust in Rohren und Kanälen mit rauhen oder vergrößerten Oberflächen bei Einphasen-Zwangskonvektion
Authors: F. Mirtsch, W. Roetzel
Fortschritte der Verfahrenstechnik, Bd. 18 (1980), Abt. A, 57/74

Schnelle Berechnung der mittleren Temperaturdifferenz in luftgekühlten Kreuzstromwärme­austauschern
Authors: W. Roetzel, J. Fürst
Wärme- und Stoffübertragung 14 (1980), 131/136

Wärmeübertragung bei freier und überlagerter Konvektion
Authors: M. Thielemann, W. Roetzel
Fortschritte der Verfahrenstechnik, Bd. 17 (1979), Abt. A, 41/59

Calculation of mean temperature difference in air-cooled cross-flow heat exchangers
Authors: W. Roetzel, J. Neubert
Journal of Heat Transfer, Transact. of the ASME, Vol. 101, August 1979, 511/513

Berechnung der Leitung und Strahlung bei der Filmverdampfung an der ebenen Platte
Author: W. Roetzel
Wärme- und Stoffübertragung 12 (1979), 1/4

Iteration-free calculation of heat transfer coefficients in heat exchangers
Author: W. Roetzel
Chemical Engineering Journal, Vol. 13 (1977) No. 3, 233/237

Wärmeaustauscher
Author: W. Roetzel
Fortschritte der Verfahrenstechnik, Bd. 15 (1977), Abt. C, 161/174

Ein neuartiger Rotationsplattenverdampfer
Author: W. Roetzel
Wärme- und Stoffübertragung 10 (1977), H. 2, 61/70

Laminar film surface evaporation with uniform heat flux in a fast rotating drum
Author: W. Roetzel
Int. J. Heat Mass Transfer 20 (1977) No. 5, 549/553

Näherungsverfahren zur Berechnung von Kondensatoren für Dampfgemische
Author: W. Roetzel
Wärme- und Stoffübertragung 8 (1975), 211/218

Mean temperature difference for heat exchanger design – a general approximate explicit equation
Authors: W. Roetzel, F. J. L. Nicole
Journal of Heat Transfer, Transactions of the ASME, Series C, 97 (1975), 5/8

Über den Wärmeübergang in dampfbeheizten, schnell rotierenden Papiertrockentrommeln
Author: W. Roetzel
Chemie-Ing.-Techn. 47. Jg. (1975), Nr. 5, 188

Uniform heat flux in a paper drying drum with a noncylindrical condensation surface operating under rimming conditions
Authors: W. Roetzel, M. Newman
Int. J. Heat Mass Transfer 18 (1975), 553/557

Improving heat transfer in steam-heated fast rotating paper drying drums
Author: W. Roetzel
Int. J. Heat Mass Transfer 18 (1975), 79/86

Heat exchanger design with variable transfer coefficients for cross-flow and mixed flow arrangements
Author: W. Roetzel
Int. J. Heat Mass Transfer 17 (1974), 1037/1049

Iteration-free calculation of the heat transfer coefficient in air-cooled cross-flow heat exchangers
Author: W. Roetzel
Chemical Engineering Journal 7 (1974), 79/81

Thermal design of condensers; the limiting case of zero mass transfer resistance
Author: W. Roetzel
Wärme- und Stoffübertragung 7 (1974), 60/64

Laminar film condensation in tubes; calculation of local film resistance and local adiabatic mixing temperature
Author: W. Roetzel
Int. J. Heat Mass Transfer 16 (1973), 2297/2

Thermal design of non-isothermal condensers; the limiting case of infinite mass transfer resistance
Author: W. Roetzel
Wärme- und Stoffübertragung 6 (1973), 228/234

Heat transfer in laminar film condensation; local film resistance and local enthalpy allowing for variable viscosity and subcooling
Author: W. Roetzel
Wärme- und Stoffübertragung 6 (1973), 127/132

Calculation of single phase pressure drop in heat exchangers considering the change of fluid properties along the flow path
Author: W. Roetzel
Wärme- und Stoffübertragung 6 (1973), 3/13

Schmidt- und Prandtl-Zahl binärer Gasgemische
Authors: W. Roetzel, A. Schaber
Forschung im Ingenieur-Wesen 38 (1972), 25/30

Gemeinsame Gleichungen für den Wärmeübergang bei laminarer freier Konvektion, Filmkondensation und Filmverdampfung
Author: W. Roetzel
Chemie-Ingenieur-Technik 43, Jahrgang 14 (1971), 785/791

Querangeströmte Rohrbündelwärmeaustauscher
Author: W. Roetzel
Maschinenmarkt Kraft-Wärme-Lufttechnik (2) Jahrgang 76 (1970) Nr. 27 – KW 17, 523/526

Der Einfluß von Schaumbildung auf die Rektifizierwirkung von Siebböden
Author: W. Roetzel
Chemie-Ingenieur-Technik 41 – Jahrgang 20 (1969), 1119/1127

Berücksichtigung veränderlicher Wärmeübergangskoeffizienten und Wärmekapazitäten bei der Bemessung von Wärmeaustauschern
Author: W. Roetzel
Wärme- und Stoffübertragung 2 (1969), 163/170

Mittlere Temperaturdifferenz bei Kreuzstrom in einem Rohrbündelwärmeaustauscher
Autor: W. Roetzel
Brennstoff-Wärme-Kraft (BWK) 21 (1969), 246/250

Einige Aspekte der Wärmeverbrauchsmessungen
Author: W. Roetzel
Bauwelt Heft 46 (1966), 1338/1340

HSU

Letzte Änderung: 13. January 2022