The Growth of Condensation Nuclei with Relative Humidity

Abstract

An explanation shall be attempted here concerning the growth of condensation nuclei which proceeds from the consideration that a vigorous coagulation of the particles sets in, particularly in smokes, combustion gases and in large cities generally, and that a large part of the nuclei represent mixed nuclei which contain partly soluble, partly insoluble substances. When the growth of such nuclei is calculated, the curves are obtained, which proceeded from the same potential nuclear radius as in the case of pure solutional droplets, and where the radius of the solid portion of the substance is indicated. It is evident that below ca. 70% the solid portions are enveloped only by a relatively thin solutional membrance, and that the particle's radius barely changes; a more or less strongly pronounced growth occurs in diverse fashion only above this degree of humidity.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1968
Accession Number
AD0846833

Entities

People

  • C. Junge

Organizations

  • United States Army Biological Warfare Laboratories

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Computations
  • Condensation
  • Condensation Nuclei
  • Crystallization
  • Depression
  • Electron Microscopes
  • Gases
  • Government (Foreign)
  • Humidity
  • Measurement
  • Observation
  • Partial Pressure
  • Particles
  • Phase
  • Transition Temperature
  • Vapor Pressure
  • Vapors

Fields of Study

  • Physics

Readers

  • Aerosol Science/Aerosol Physics
  • Systems Analysis and Design