Saline Water Research and Development Progress Report No. 8 Forced-Circulation and Dr6pwise Condensation Techniques for Improving Heat Transfer Rates for Vapor Compression Evaporators

摘要

The experimental program was made up of two broad parts consisting of (a) measurement of over-all and film heat transfer coefficients with pure water or pure NaCl brine, (b) testing of sealing behavior over an extended period with synthetic sea water and Long Island Sound sea water.nA forced circulation evaporator was built in which water and brine were heated with negligible boiling in the tubes, evaporation being accomplished by "flashing" after leaving the tubes. Two test sections were used, one of 0.951 inch inside diameter and the other of 0.761 inch inside diameter, both 6 feet in length. Temperatures of steam, brine, and tube wall surface were measured.