Accession Number:

AD0405480

Title:

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

Descriptive Note:

Corporate Author:

NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA

Personal Author(s):

Report Date:

1963-05-01

Pagination or Media Count:

9.0

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.

Subject Categories:

  • Water Pollution and Control
  • Hygiene and Sanitation
  • Air Conditioning, Heating, Lighting and Ventilating

Distribution Statement:

APPROVED FOR PUBLIC RELEASE