Why Does the BMW Evaporator Leak?
1 Answers
BMW evaporator leakage reasons: the evaporator itself is damaged or the sealing is poor; symptoms of evaporator refrigerant leakage include the air conditioning not cooling and a smell of automotive air conditioning refrigerant or refrigerant oil in the cabin. Evaporator concept: The air conditioning evaporator is a type of evaporator. The function of the air conditioning evaporator is to use low-temperature liquid refrigerant, which evaporates easily under low pressure, turning into vapor and absorbing heat from the cooled medium to achieve refrigeration. Evaporator principle: It relies on a fan to force the air in the storage room to flow through the cooling coils inside the unit for heat exchange, cooling the air and thereby reducing the storage temperature. Among these, the refrigerant or coolant flowing inside the coils cools the air outside the tubes through the tube walls, known as dry-type air coolers; those that spray coolant liquid directly to exchange heat with the air are called wet-type air coolers; hybrid air coolers have both cooling coils and coolant spray devices. Dry-type air coolers commonly used in cold storage can be further divided into ceiling-mounted and floor-standing types based on their installation position.