MONITORING THE HEAT TRANSFER PROPERTIES OF A HEAT TRANSFERRING SURFACE

摘要

A method for monitoring the heat transfer properties of a heat transferring surface forming part of a containment for a flowing liquid is described. The monitoring method comprising the steps of diverting a representative fraction of the flowing liquid through a test conduit (20) selected to be an analogue of the heat transferring surface, causing a determined heat flow to pass through the wall of the test conduit between the fraction of flowing liquid passing through the test conduit and a heat source or sink means external to the test conduit, measuring the rate of flow of liquid through the test conduit, measuring selected temperatures and/or temperature differentials at selected locations, and calculating the heat transfer properties of the test conduit on the basis of the measurements to provide an analogue of the heat transferring properties of the heat transferring surface. Apparatus for the method is also described.