Experimental investigation on heat recovery from flue gas using falling film method

• A new test rig based on the falling film spray technology was set up. Four different designs such as empty tower, plates were proposed. The heat and moisture recovery performance from flue gas testedsystematically. effects of control parameters water–air ratio inlet air temperature transfer effectiveness examined. Increasing or decreasing can improve for all cases. discharge is rich in water vapor its latent heat, which leads to main loss natural gas. In this article, technology, a up examined systematic manner. case studies, i.e. conical baffles staggered arranged baffle fixed plate designed current system. Experimental results showed that: (i) increasing effectiveness; (ii) with shows highest effectiveness. comparison plates, further (iii) cases increases increase number plates. maximum obtained at 5 plates; (iv) baffles, floor range present work, larger central angle spiracle beneficial For optimal 41.0% higher than that tower.