The blower in the system has a 4 hp motor (fully loaded at cooling design point) with a motor efficiency of 70% located AFTER the cooling coil. Find the required temperature leaving the cooling coil to maintain room conditions. Assume all of the energy used by the blower is converted to heat. What is total cooling coil load at the design point, including the blower heat

Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.

Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.

Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above