PART III. PROBLEM Plesse answer the followink questicon; if you make any additional assumptons, please dearty inditate Ore problem with 8 questions. OBS: Nat all the questions require caiculatians. them in your answer's]. pesciption A. List all the stepineedsed far coloulating the average canvective heat transpert moeficient (n0). Atter a heat treatment procoss a thin cast iron plate of thickness 8mm, length L2m and width 6. Is the regime teniest, mixed, or turbulent? sketch the mamentum boundiry layes ard the W=0.5 a is coobod down by forced crnvestion. To this end, the plate is sespended (see figure below) therrisl beurdary layer it is envugh to toint onk on inte side of the plote). and alr, with frec strcam temperature Tm255C, 1 cleculated at b25m/s. The ar flows in the direction of the lorger side of the plate ;see tigure telow). The plate has intlai temperature of r1 400 " temperature. Galsyiate the haza flow when the plate is at its initial tereperature. Assumptians: Neglect radiation; the plate is suspended in air thus hoth sides ace swapt by the straam of 6. If the plate were saxpended vertionlly insteed of horizentelly from the lane side: iee, the ar was air; the reeime starts laminar at the heginnire of the plate. natiz: be smaler, equal, or the same? Flesse prowde a short explanstion (onily two or three sentences? E. Calculate the time reeded for the outer surface of the plate to be 50 ". Flease use the heat transport cocfikisont calculated in C. F. Mt the time calodiated in E whist will the temperature of the iedec of the plate (at hall thirkness) resl time need for the object to cool down to the target temperature? Plesse prowide a short euplunation isporox. two or thres ecritences). H. How the caloulations in E would change If you were to account for the radat on effecte? Fleses provides a shart ouplanation (efprove. two or thros sertencos). PART III. PROBLEM Plesse answer the followink questicon; if you make any additional assumptons, please dearty inditate Ore problem with 8 questions. OBS: Nat all the questions require caiculatians. them in your answer's]. pesciption A. List all the stepineedsed far coloulating the average canvective heat transpert moeficient (n0). Atter a heat treatment procoss a thin cast iron plate of thickness 8mm, length L2m and width 6. Is the regime teniest, mixed, or turbulent? sketch the mamentum boundiry layes ard the W=0.5 a is coobod down by forced crnvestion. To this end, the plate is sespended (see figure below) therrisl beurdary layer it is envugh to toint onk on inte side of the plote). and alr, with frec strcam temperature Tm255C, 1 cleculated at b25m/s. The ar flows in the direction of the lorger side of the plate ;see tigure telow). The plate has intlai temperature of r1 400 " temperature. Galsyiate the haza flow when the plate is at its initial tereperature. Assumptians: Neglect radiation; the plate is suspended in air thus hoth sides ace swapt by the straam of 6. If the plate were saxpended vertionlly insteed of horizentelly from the lane side: iee, the ar was air; the reeime starts laminar at the heginnire of the plate. natiz: be smaler, equal, or the same? Flesse prowde a short explanstion (onily two or three sentences? E. Calculate the time reeded for the outer surface of the plate to be 50 ". Flease use the heat transport cocfikisont calculated in C. F. Mt the time calodiated in E whist will the temperature of the iedec of the plate (at hall thirkness) resl time need for the object to cool down to the target temperature? Plesse prowide a short euplunation isporox. two or thres ecritences). H. How the caloulations in E would change If you were to account for the radat on effecte? Fleses provides a shart ouplanation (efprove. two or thros sertencos)
