Voices: Energy Saver

Refrigerants: What Kind of Fouling is That?

Rigorous manual testing of a refrigeration system revealed an unexpected source of fouling

By Earl Clark, Energy Columnist
Jun 19, 2018

Jake was perplexed. The evaporator on his -75°C refrigeration machine indicated signs of fouling on the secondary refrigerant side. The secondary refrigerant was a form of paint stripper designed to keep metal surfaces clean. How could the evaporator possibly be fouled?

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