Thermally adaptive flow conduit

A conduit intended for use in a fouling environment comprising:

• at least one solid surface comprising a thermally adaptive material, wherein the at least one solid surface is configured to undergo a shape change in a radial direction as a result of thermal cycling such the shape change dislodges unwanted material accumulated on the at least one solid surface during operation of the conduit in the fouling environment,
• wherein the unwanted material accumulated on the at least one solid surface comprises one or more of an inorganic deposit, an organic deposit, a biologic deposit, or an ice frost deposit;
• and
• wherein the thermally adaptive material comprises two layers, each of which has a different coefficient of thermal expansion such that the conduit has an oval cross-section at a first temperature and a circular cross-section at an operation temperature which is higher than the first temperature.