INVESTIGATION OF SCALE REMOVAL FROM THE EXTERIOR OF HORIZONTAL TUBES EVAPORATING A THIN FILM OF SEA WATER

Abstract

The purpose of this test was to investigate scaling in horizontal tube, spray tube evaporators that have high heat transfer coefficients. These evaporators employ circulation through spray nozzles which produce a falling film over heating surfaces. The test consisted of the intermittent operation of an evaporator which was modified from a used heat exchanger. Heat was supplied from low pressure steam. Scale formation was observed visually through a low in the unit. Before the test was concluded, the unit was treated with sulfuric acid to remove the scale. It was concluded that this type of evaporator had scale problems very similar to conventional type evaporators and that the same type of scale control treatment is effective.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1963
Accession Number
AD0405480

Entities

People

  • R. M. Gisler

Organizations

  • Naval Facilities Engineering Service Center

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Civil Engineering
  • Compression
  • Distillation
  • Evaporators
  • Feed Pumps
  • Films
  • Heat Exchangers
  • Heat Transfer
  • Heat Transfer Coefficients
  • Production
  • Pumps
  • Sea Water
  • Spray Nozzles
  • Temperature Control
  • Thin Films
  • Vapors
  • Water

Readers

  • Fluid Dynamics.
  • Thin Film Deposition Science.