Fig. 11From: Toward TiO2 Nanofluids—Part 2: Applications and ChallengesSchematic diagram of the experimental system for NH3–H2O nanofluid falling film absorption [117]. 1 NH3 vessel, 2 decompression valve, 3 constant pressure controller, 4, 11 container of solution, 5 inlet of cooling water, 6, 10 constant flow controller, 7 falling film tube, 8 visible absorber body, 9 solution distributor, 12 tubes for balancing pressure, 13 outlet of cooling water, 14 HP data acquisition instrument, 15 computerBack to article page