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Process for cooling waste water

Patent:

Abstract

The process for avoiding thermal pollution of waters described rests on the principle of the heat conduction tube, by which heat is conducted from the liquid space into the atmosphere at a lower temperature above it. Such a tube, here called a cooling tube, consists in its simplest form of a heat conducting corrugated tube, made, for example, of copper or a copper alloy or of precious metals, which is sealed to be airtight at both ends, and after evacuation, is partially filled with a medium of low boiling point. The longer leg of the tube, which is bent at right angles, lies close below the surface of the water to be cooled and parallel to it; the shorter leg projects vertically into the atmosphere. The liquid inside the cooling tube fills the horizontal part of the tube to about halfway. A certain part of the liquid is always evaporated in this part. The vapor rising in the vertical part of the tube condenses on the internal wall cooled by the air outside, and gives off its heat to the atmosphere. The condensed medium flows back down the vertical internal wall into the initial position in a continuous cycle. A  More>>
Authors:
Publication Date:
Dec 16, 1976
Product Type:
Patent
Report Number:
DE 2524961; A
Reference Number:
ERA-03-050617; EDB-78-103007
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; MUNICIPAL WASTES; WASTE MANAGEMENT; SEWAGE; THERMAL POLLUTION; COOLING; DESIGN; THERMAL CONDUCTION; TUBES; WATER POLLUTION CONTROL; ENERGY TRANSFER; HEAT TRANSFER; MANAGEMENT; POLLUTION; POLLUTION CONTROL; WASTES; 320604* - Energy Conservation, Consumption, & Utilization- Municipalities & Community Systems- Municipal Waste Management- (1980-)
OSTI ID:
6858944
Country of Origin:
Germany
Language:
German
Submitting Site:
DE
Size:
Pages: 9
Announcement Date:

Patent:

Citation Formats

Rohner, P. Process for cooling waste water. Germany: N. p., 1976. Web.
Rohner, P. Process for cooling waste water. Germany.
Rohner, P. 1976. "Process for cooling waste water." Germany.
@misc{etde_6858944,
title = {Process for cooling waste water}
author = {Rohner, P}
abstractNote = {The process for avoiding thermal pollution of waters described rests on the principle of the heat conduction tube, by which heat is conducted from the liquid space into the atmosphere at a lower temperature above it. Such a tube, here called a cooling tube, consists in its simplest form of a heat conducting corrugated tube, made, for example, of copper or a copper alloy or of precious metals, which is sealed to be airtight at both ends, and after evacuation, is partially filled with a medium of low boiling point. The longer leg of the tube, which is bent at right angles, lies close below the surface of the water to be cooled and parallel to it; the shorter leg projects vertically into the atmosphere. The liquid inside the cooling tube fills the horizontal part of the tube to about halfway. A certain part of the liquid is always evaporated in this part. The vapor rising in the vertical part of the tube condenses on the internal wall cooled by the air outside, and gives off its heat to the atmosphere. The condensed medium flows back down the vertical internal wall into the initial position in a continuous cycle. A further development contains a smooth plastic inner tube in an outer corrugated tube, which is shorter than the outer tube; it ends at a distance from the caps sealing the outer tube at both ends. In this design the angle between the vertical and horizontal leg is less than 90/sup 0/. The shorter leg projects vertically from the water surface, below which the longer leg rises slightly from the knee of tube. The quantity of the liquid is gauged as a type of siphon, so that the space between the outer and inner tube at the knee of the tube remains closed by the liquid medium. The medium evaporated from the surface in the long leg of the tube therefore flows over the inner tube, which starts above the level of the medium. Thus evaporation and condensation paths are separated.}
place = {Germany}
year = {1976}
month = {Dec}
}