Contactor energy exchange pump

When an energy exchange pump is used, the separator is maintained at approximately 15% of the contactor pressure. A higher separator pressure may have some problem in the flow of lean glycol (reflux) to the contactor. 

In conclusion, the demonstration runs have shown that the membrane contactor dehumidification system is effective when the total loads of the refrigerated cell do not require an evaporative temperature of the cooling coil below —10 °C. In these conditions it has been shown that energy, operating costs and C02 emissions can be decreased up to 20% when optimized systems are built. The optimization is related mostly to the selection of adequate pumps, fans, heat exchangers. 

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