ARTICLE:

• RESPONSE OF TEMPERATURE IN HEATED PIPE FLOW TO RAMP-TYPE EXCURSIONS OF FLOW RATE  download article

O. Buyukalaca
Department of Mechanical Engineering, University of Cukurova, Turkey

J. D. Jackson
School of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester M1 3 9PL, UK

ABSTRACT

An experimental study is reported of turbulent heat transfer to water in a uniformly heated pipe during ramp-type excursions of flow rate in which it decreased linearly with time starting from a steady condition and finishing at another one. The variation with time of outer wall temperature and fluid temperature at a number of radial positions was measured. Some measurements were also made under conditions of steady flow. The experimental results revealed a very slow response of temperature to the imposed flow excursions and big differences between temperature measured during transient flow and under steady flow conditions.

 download article

« Previous article         Next article »