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Featured researches published by Kazunari Komotori.


Heat and Mass Transfer | 1977

Vaporization of single liquid drops in an immiscible liquid part II: Heat transfer characteristics

Yoshiro Tochitani; T. Nakagawa; Yasuhiko H. Mori; Kazunari Komotori

Heat transfer characteristics during the vaporization process of a pentane or furan drop in an aqueous glycerol of high viscosity has been studied. With the progress of vaporization, the overall heat transfer coefficient related to the liquid-liquid interfacial area of a two-phase bubble increases monotonically, and influences of initial drop diameter and temperature difference reduce. Some convection or circulation seems to occur in the unvaporized-liquid phase.ZusammenfassungIn dieser Arbeit wird der Wärmeübergang während der Verdampfung von Pentan- und Furan-Tropfen in einer wässerigen Glyzerinlösung hoher Viskosität untersucht. Mit fortschreitender Verdampfung steigt der Wärmeübergangskoeffizient, bezogen auf die Grenzfläche flüssig-flüssig der zweiphasigen Blase monoton an, wobei Einflüsse des anfänglichen Tropfendurchmessers und der Temperaturdifferenz abnehmen. In der nichtverdampften Flüssigkeitsphase scheint Konvektion oder Zirkulation aufzutreten.


International Journal of Multiphase Flow | 1980

Cinemicrophotographic study of boiling of water-in-oil emulsions

Yasuhiko H. Mori; Hiroshi Sano; Kazunari Komotori

Abstract Cinemicrophotography is applied to the boiling of emulsions of water dispersed in oils whose boiling points are higher than that of water. The layer of emulsion is made thin enough to make possible a microscopic observation by transmitted light through the layer. Two alternative processes of bubble formation are found: a periodical bubble formation at specified sites on the heated solid surface contacting the emulsion and a casual bubble formation some distance away from the surface. The basic mechanisms of those processes are discussed.


Heat and Mass Transfer | 1975

Vaporization of a liquid injected into an immiscible liquid through a single nozzle

Yoshiro Tochitani; Yasuhiko H. Mori; Kazunari Komotori

The basic characteristics of vaporization and flowing behavior of n-pentane injected through a single nozzle into a column of hot water have been studied photographically. Subcools at the nozzle-outlet have a strong influence on the critical temperature driving forces at over which vaporization can be maintained. The length of a Rayleigh jet is remarkably shortened when vaporization occurs, whereas mean diameters of drops are little affected whether vaporization occurs or not. A specific condition that a bubble appears in each drop is satisfied not on a specific line but over a wide region on the ΔT∞ - UN plane.ZusammenfassungVerdampfung und Strömungsverhalten von n-Pentan, das in einer Einzeldüse in eine Säule aus heißem Wasser eingespritzt wird, ist in dieser Arbeit photographisch untersucht. Unterkühlung am Düsenaustritt hatte großen Einfluß auf die kritische Temperaturdifferenz, oberhalb derer Verdampfung stattfindet. Die Strahllänge nimmt bei Verdampfung stark ab, die Tropfengröße wird wenig beeinflußt. Die besondere Bedingung, daß aus jedem Tropfen eine Blase hervorgeht, ist in weitem Bereich eines Diagrammes erfüllt, in dem die treibende Temperaturdifferenz über der Strahlgeschwindigkeit aufgetragen ist (Bild 9).


Heat and Mass Transfer | 1977

Vaporization of single liquid drops in an immiscible liquid Part I: Forms and motions of vaporizing drops

Yoshiro Tochitani; Yasuhiko H. Mori; Kazunari Komotori


Journal of Heat Transfer-transactions of The Asme | 1980

Augmentation of Direct-Contact Heat Transfer to Drops with an Intermittent Electric Field

N. Kaji; Yasuhiko H. Mori; Y. Tochitani; Kazunari Komotori


1969 International Automotive Engineering Congress and Exposition | 1969

A Study of the Delivery Ratio Characteristics of Crankcase-Scavenged Two-Stroke Cycle Engines

Kazunari Komotori; Eiichi Watanabe


Canadian Journal of Chemical Engineering | 1977

Rising behavior of air bubbles in superposed liquid layers

Yasuhiko H. Mori; Kazunari Komotori; Kazuya Higeta; Junji Inada


Canadian Journal of Chemical Engineering | 1983

A novel direct-contact condensation pattern of vapour bubbles in an immiscible liquid

Kazuya Higeta; Yasuhiko H. Mori; Kazunari Komotori


Journal of Heat Transfer-transactions of The Asme | 1981

Cooling of Freely Falling Liquid Drops with a Shell of an Immiscible Volatile Liquid

Yasuhiko H. Mori; Kyuichiro Nagai; Hitoshi Funaba; Kazunari Komotori


Archive | 1978

Direct-contact heat transfer to drops in an intermittent electric field

Naohiro Kaji; Yasuhiko H. Mori; Yoshiro Tochitani; Kazunari Komotori

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Y. Tochitani

Kanazawa Institute of Technology

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