Read the following technical passage about industrial refrigeration systems and complete the concluding statement with the appropriate term based on the facts provided.
Cevap:Industrial ammonia refrigeration systems rely on an oil separator located immediately downstream of the compressor to capture lubricating oil before it reaches the condenser. Unlike synthetic halocarbon refrigerants, ammonia does not dissolve or mix with oil. Any oil that bypasses the separator travels directly into the low-temperature evaporator coils, where it coats the internal metal tubing. Because refrigeration oil has a significantly lower thermal conductivity than metal tubing, the accumulation of an internal oil layer will cause the evaporator's heat transfer rate to 【decrease】.
Cevap
decrease (or drop / decline / diminish / fall / reduce)
The passage establishes that oil coats the evaporator pipes and that oil has a much lower thermal conductivity than metal. When a low-conductivity substance lines a heat exchanger, it acts as an insulator, which logically forces the overall heat transfer rate to decrease.
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Anahtar Kavram
Drawing logical deductions from synthesized technical constraints and physical properties
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