Prof Neal Chung wins POC grant.

4 February 2014

Hollow membranes to cool and dehumidify indoor air


Prof neal Chung
Prof Neal Chung explaining the technology behind hollow membranes.

NOVEL concept using membrane technology to cool indoor air and lower humidity, has won a Proof-of-Concept (POC) grant by the National Research Foundation (NRF) at their 10th call. The proposed technology, led by Professor Neal Chung, NUS Department of Chemical & Biomolecular Engineering, can potentially cut total energy consumption in a building by up to 23 per cent.

Said Prof Chung, “Our invention uses hollow fibre membranes which can reduce the moisture content in humidity without any phase transition. The reduction of the moisture content can also be easily adjusted in the membrane system according to the weather condition.”

Currently, air-conditioning systems consume about 50-60 per cent of the total energy because the moisture has to be cooled and then condensed.

“No additional energy is required to regenerate the system as compared to existing technology that uses desiccants to dehumidify the air,” Prof Chung added.

Their project is among the 31 submitted to NRF, out of which seven were awarded POC grants. Each will be awarded up to $250,000 to commercialise their idea in 12 months.