RECALCULATION METHOD OF THE CHARACTERISTICS OF TUBULAR SMOOTH-WALLED STEAM GENERATORS FROM BOUNDARY CONDITIONS OF THE SECOND KIND FOR BOUNDARY CONDITIONS OF THE FIRST KIND

A. P. Lukisha

RECALCULATION METHOD OF THE CHARACTERISTICS OF TUBULAR SMOOTH-WALLED STEAM GENERATORS FROM BOUNDARY CONDITIONS OF THE SECOND KIND FOR BOUNDARY CONDITIONS OF THE FIRST KIND

A. P. Lukisha

Анотація

The article is devoted to the development of a method for recalculating the thermo-hydraulic characteristics of straight-through cylindrical steam-generating channels with boundary conditions of the second kind for boundary conditions of the first kind. The need for the development of this technique is due to the presence in the literature of a large number of calculated dependences describing the heat transfer during boiling and evaporation of the coolant in smooth-walled tubes for boundary conditions of the second kind, while the practical plan problems are often conditioned by other boundary conditions, in particular boundary conditions of the first kind. The ultimate goal of the recalculation method was to create a program for calculating the thermo-hydraulic efficiency of straight-through steam generators. The proposed recalculation technique makes it possible to calculate, in the straight-through tubular steam generators, for boundary conditions of the first kind, such thermal-hydraulic characteristics as the length of the channel required for complete evaporation of the heat carrier, the power required to pump the coolant in this case, and the total amount of heat transferred to the heat carrier during evaporation.

Ключові слова

straight-through tubular steam generators; thermo-hydraulic characteristics; boundary conditions

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Посилання

Chisholm, D. Prediction of pressure gradient in pipeline system during two-phase flow [Text] / D. Chisholm , L. A. Sutherland // Proceedings of the Institute of Mechanical Engineers. – 1969. – Vol. 184. – P. 24–32.

Kirilov, P . L. Handbook of thermal-hydraulic calculation (nuclear reactors, heat exchangers, steam generators) ( Edited by P. L. Kirilov P . L. ) [Text] / P. L. Kirilov, Yu. S .Yurjev , V. P. Bobkov . – М.: Energoatomizdat, 1990. – 360 p. (rus.)

Petuhov, B .S . Heat transfer in nuclear power plants (Edited by Petuhov B. S. ) [Text]/ B .S . Petuhov , L. G Genin , S. A. Kovalev. – М.: Energoatomizdat, 1986. – 472 p. (rus.)

Kutateladze, S. S. About boundary vapour content at the boil in a circular pipe [Text]// S. S. Kutateladze // Teploenergetika. – 1979. – № 6. – P. 54–55.(rus.)

Kutepov, A. M. Hydrodynamics and heat transfer in steam generation [Text] / A. M. Kutepov , L. S. Sterman, N. G. Stjushin. – М.:Vysshaja skola, 1986. – 448 p.(rus.)

Lockart, R. W. Proposed correlation of data for isothermal two-phase, twocomponent flow in pipes [Text] / R. W. Lockart, R. C. Martinelli // Chemical Engineering Progress. – 1949. – Vol. 45(1). – P. 39–48.

Miropolsky, Z. L. Heat transfer to the superheated steam with the input and output of heat [Text] / Z. L. Miropolsky // Teploenergetika. – 1975. – № 3. – P. 75. (rus.)

Vargaftik, N. B. Handbook on thermophysical properties of gases and liquids [Text] / N. B. Vargaftik. – М.: Nauka, 1972. – 720 p.(rus.)

Zivi, S. M. Estimation of steady state steam void fraction by means of the principle of minimum entropy production [Text] / S. M. Zivi // J. Heat Transfer. – 1964. – Vol.86. – P. 247– 252.