INTENSIFICATION EFFECT OF ULTRASONIC WAVES ON THE HEAT TRANSFER PROCESS BETWEEN LIQUIDS OUTSIDE AND INSIDE THE TUBES.

Abstract

Conclusions: (1) The heat transfer process can be intensified by the use of ultrasonic bivration. The experimental results showed that the average rate of increase of the coefficient of thermal conductivity between hot and cold was 80%. That between water and lubricating oil remained at 20%. (2) The result of the effect of ultrasonic wave was far from the maximum limiting value. Following the experimental results and theoretical discussions, it can be predicted that a still larger intensification effect may be obtained. An equation is given which suggests the main avenue of approach towards that goal. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 31, 1966
Accession Number
AD0639161

Entities

People

  • Hwa-ting Cheng

Organizations

  • National Air and Space Intelligence Center

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Coefficients
  • Conductivity
  • Energy Transfer
  • Equations
  • Heat Transfer
  • Lubricating Oils
  • Mathematics
  • Republic
  • Thermal Conductivity
  • Ultrasounds
  • Waves

Readers

  • Petroleum Engineering
  • Plasma Physics / Magnetohydrodynamics
  • Systems Analysis and Design