Gas discharge modes at a single horizontal nozzle in a two-dimensional fluidized bed

Effects of Mixing Using Side Port Air Injection on a Biomass Fluidized Bed

“…Low jet flow promoted mixing and enhanced solid circulation, while high flowrates showed a tendency to increase elutriation, and in small diameter beds, caused slugging. Chyang et al [10] experimentally studied the modes of gas discharge from a single jet in a two-dimensional (2D) fluidized bed. They identified three regimes for either a bubbling, transition, or jetting flow by comparing a modified Froude number and the ratio of nozzle-to-particle diameter.…”

Numerical simulation of single and multiple gas jets in bubbling fluidized beds

“…There has been a considerable amount of work that studies the horizontal injection of gas or gas-liquid jets into fluidized beds (Merry, 1971;Xuereb et al, 1991aXuereb et al, , 1991bChen and Weinstein, 1993;Chyang et al, 1997;Copan et al, 2001;Al Sherehy, 2002;Ariyapadi et al, 2003Ariyapadi et al, , 2004Link et al, 2009;Gryczka et al, 2009). The jet behaviors, including the gas discharge modes, jet penetration lengths, and jet expansion angles, have been studied using various experimental methods, most of which are based on direct visual observation of the phenomena, such as photographic or high-speed cine film analysis technologies (Merry, 1971;Chyang et al, 1997;Hong et al, 1997;Copan et al, 2001) and X-ray systems (Chen and Weinstein, 1993;Ariyapadi et al, 2003Ariyapadi et al, , 2004.…”

“…The jet behaviors, including the gas discharge modes, jet penetration lengths, and jet expansion angles, have been studied using various experimental methods, most of which are based on direct visual observation of the phenomena, such as photographic or high-speed cine film analysis technologies (Merry, 1971;Chyang et al, 1997;Hong et al, 1997;Copan et al, 2001) and X-ray systems (Chen and Weinstein, 1993;Ariyapadi et al, 2003Ariyapadi et al, , 2004. Due to the limitation of the technologies used in direct visual observation, the bed is usually very thin or the jet has to be injected close to the wall.…”

Research of thermomechanical proces during decomposition of high density liquid fuel in the fluidized bed

“…U ovom radu akcenat je stavljen na horizontalno-bočno uvoñenje mlaza u sloj i pregled literature [68,[79][80][81][82][83][84][85][86][87][88][89][90][91][92] Brzina mlaza…”

“…(1997) [84] 0,775 i 0,92 8 ÷ 0,49 zavisno od materijala i strukture sloja, kao i radnih parametara (prečnika mlaznice, brzine mlaza, prečnika čestica sloja, statičke visine sloja) zavisi da li će se u sloju formirati lanac mehurova ili neprekidan mlaz. Dat je fazni dijagrami mehuraste, "jetting" i prelazne zone u zavisnosti od modifikovanog Frojdovog broja i odnosa rastojanja od ulaza mlaza i prečnika mlaznice.…”