#heat exchanger

• Radiator — An old, regional, or phonetically corrupted form of the noun 'radiator', or historically used in certain dialects to describe a device or structural element intended for dispersing or radiating heat and fluids. This term is encountered in isolation within old technical documents or rural mechanical jargon, preserving a direct reference to a heat exchange apparatus.
• Fouling — The act of fouling and its result; a structural process of accumulation and deposition of a layer of carbon deposits, oily residues, soot, or impurities on the inner surfaces of mechanisms or industrial facilities. The phenomenon reduces thermal efficiency, decreases the useful section of pipes, and can cause serious failure of internal combustion engines.