A Comparison of Analytically and Experimentally Determined Isothermal Pressure Losses in a Heat-Exchanger Installation

Abstract

Tests and calculations were conducted for obtaining data useful in the design of efficient ducting systems. Analytical values were determined by adding together losses calculated from date on elbows, diffusers, and straight ducts. For ducts similar to tested cross-flow plate-type heat exchanger, calculated losses will agree with experimental values. Losses in poorly designed elbows can be predicted, but experimental values of losses are subject to the uncertainties of pressure measurement in regions of uneven flow distribution.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1945
Accession Number
ADB804233

Entities

People

  • Wesley H. Hillendahl

Organizations

  • National Aeronautics and Space Administration

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Aeronautical Laboratories
  • Aeronautics
  • Air Flow
  • Boundary Layer
  • Butterfly Valves
  • Cross Flow
  • Diffusers
  • Exhaust Gases
  • Flow
  • Flow Rate
  • Gases
  • Heat Exchangers
  • Lepidoptera
  • Measurement
  • Pressure Measurement
  • Static Pressure

Readers

  • Combustion and Flow Dynamics.