Accession Number:

AD1092920

Title:

Nucleation of Steam Bubbles in a Proposed Ocean Thermal Gradient Hydraulic Power Plant

Descriptive Note:

Technical Report

Corporate Author:

Naval Civil Engineering Laboratory Port Hueneme United States

Personal Author(s):

Report Date:

1976-12-01

Pagination or Media Count:

50.0

Abstract:

This is a study of the nucleation of steam bubbles generated by cavitation in seawater and the ways of utilizing the resultant steam in a steam-driven version of the air lift pump. A method is described wherein micronuclei consisting primarily of microscopic particles with adsorbed gas layers are activated in a cavitating venturi then grown to a useful size by evaporation in a subsequent section of the pump tube. A small laboratory demonstration is described and various conditions of flow observed are reported. A rational explanation for the activation nuclei is given. The bubble growth observed is as predicted, and is given.

Subject Categories:

  • Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE