EcoRenovator - View Single Post - New Air Conditioner Conquers All Climates, Saves Up To 90% Energy

jeff5may · 05-26-14, 12:03 AM

The only thing I can't figure out is what to use for a semi-permeable membrane. This is the layer that separates the liquid desiccant from the fresh air stream. It has to allow the water vapor from the incoming air to diffuse into the desiccant, but not let any desiccant leak into the incoming air. Any ideas on a suitable material would be appreciated.

The rest of the unit looks much like the HRV's that some members have constructed already. Pretty much coroplas and felt. The latest NREL generation design incorporates some extruded aluminum pieces for better heat transfer, and thus smaller size, but I can live with a larger heat exchanger to avoid exotic and expensive custom materials. Maybe some windshield reflector board will suffice.

05-26-14, 12:03 AM	#9
jeff5may Supreme EcoRenovator Join Date: Jan 2010 Location: elizabethtown, ky, USA Posts: 2,428 Thanks: 431 Thanked 619 Times in 517 Posts	The only thing I can't figure out is what to use for a semi-permeable membrane. This is the layer that separates the liquid desiccant from the fresh air stream. It has to allow the water vapor from the incoming air to diffuse into the desiccant, but not let any desiccant leak into the incoming air. Any ideas on a suitable material would be appreciated. The rest of the unit looks much like the HRV's that some members have constructed already. Pretty much coroplas and felt. The latest NREL generation design incorporates some extruded aluminum pieces for better heat transfer, and thus smaller size, but I can live with a larger heat exchanger to avoid exotic and expensive custom materials. Maybe some windshield reflector board will suffice. Last edited by jeff5may; 05-26-14 at 12:09 AM..