Chapter 5, Problem 5.9P

An oil pump operating at steady state delivers oil at a rate of 10 lb/s through a 1-in.-diameter exit pipe. The oil, which can be modeled as incompressible, has a density of 70 lb/ft³ and experiences a pressure rise from inlet to exit of 40 lb/in². There is no significant elevation difference between inlet and exit, and the inlet kinetic energy is negligible. Heat transfer between the pump and its surroundings is negligible, and there is no significant change in temperature as the oil passes through the pump. Determine the velocity of the oil at the exit of the pump, in ft/s, and the power required for the pump, in hp. Step 1 Your answer is correct. Determine the velocity of the oil at the exit of the pump, in ft/s. V₂ = 26.192 Hint Step 2 ft/s * Your answer is incorrect. Determine the power required for the pump, in hp. i 1.49595 hp Attempts: 1 of 4 used

An oil pump operating at steady state delivers oil at a rate of 10 lb/s through a 1-in.-diameter exit pipe. The oil, which can be modeled as incompressible, has a density of 70 lb/ft3 and experiences a pressure rise from inlet to exit of 40 lb/in². There is no significant elevation difference between inlet and exit, and the inlet kinetic energy is negligible. Heat transfer between the pump and its surroundings is negligible, and there is no significant change in temperature as the oil passes through the pump. Determine the velocity of the oil at the exit of the pump, in ft/s, and the power required for the pump, in hp. Determine the power required for the pump, in hp.

An oil pump operating at steady state delivers oil at a rate of 13 lb/s through a 1-in.-diameter exit pipe. The oil, which can be modeled as incompressible, has a density of 85 lb/ft3 and experiences a pressure rise from inlet to exit of 40 lb/in². There is no significant elevation difference between inlet and exit, and the inlet kinetic energy is negligible. Heat transfer between the pump and its surroundings is negligible, and there is no significant change in temperature as the oil passes through the pump. Determine the velocity of the oil at the exit of the pump, in ft/s, and the power required for the pump, in hp. Step 1 Your answer is correct. Determine the velocity of the oil at the exit of the pump, in ft/s. V₂ = 28.064 Hint Step 2 * Your answer is incorrect. ft/s Determine the power required for the pump, in hp. Win = 1.60155105 eTextbook and Media hp Attempts: 1 of 4 used

An oil pump operating at steady state delivers oil at a rate of 6 kg/s through a 2.5-cm- diameter exit pipe. The oil, which can be modeled as incompressible, has a density of 1360 kg/m³ and experiences a pressure rise from inlet to exit of 2.75 bar. There is no significant elevation difference between inlet and exit, and the inlet kinetic energy is negligible. Heat transfer between the pump and its surroundings is negligible, and there is no significant change in temperature as the oil passes through the pump. a. Determine the velocity of the oil at the exit of the pump, in m/s. b. Determine the power required for the pump, in W. Oil Pump Mflow=6kg/s Poil 1360 kg/m³ P2-p1-2.75 bar T₂-T₁=0 D=2.5 cm

An oil pump operating at steady state delivers oil at a rate of 12 lb/s through a 1-in.-diameter exit pipe. The oil, which can be modeled as incompressible, has a density of 55 lb/ft3 and experiences a pressure rise from inlet to exit of 40 lbf/in². There is no significant elevation difference between inlet and exit, and the inlet kinetic energy is negligible. Heat transfer between the pump and its surroundings is negligible, and there is no significant change in temperature as the oil passes through the pump. Determine the velocity of the oil at the exit of the pump, in ft/s, and the power required for the pump, in hp.

3.5 thermodynamics

An oil pump operating at steady state delivers oil at a rate of 11 lb/s through a 1-in-diameter exit pipe. The oil, which can be modeled as incompressible, has a density of 55 lb/ft3 and experiences a pressure rise from inlet to exit of 40 lb/in². There is no significant elevation difference between inlet and exit, and the inlet kinetic energy is negligible. Heat transfer between the pump and its surroundings is negligible, and there is no significant change in temperature as the oil passes through the pump. Determine the velocity of the oil at the exit of the pump, in ft/s, and the power required for the pump, in hp. Step 1 * Your answer is incorrect. Determine the velocity of the oil at the exit of the pump, in ft/s. V₂ = i 32.08 ft/s

As shown in the figure below, two reversible cycles arranged in series each produce the same net work, Wcycle. The first cycle receives energy QH by heat transfer from a hot reservoir at TH = 1000°R and rejects energy Q by heat transfer to a reservoir at an intermediate temperature, T. The second cycle receives energy Q by heat transfer from the reservoir at temperature T and rejects energy Qc by heat transfer to a reservoir at Tc = 500°R. All energy transfers are positive in the directions of the arrows. Determine: Hot reservoir at TH QH Reservoir at T R1 lo ali R2 Qc Cold reservoir at Te W. cycle W cycle (a) the intermediate temperature T, in °R, and the thermal efficiency for each of the two power cycles. (b) the thermal efficiency of a single reversible power cycle operating between hot and cold reservoirs at 1000°R and 500°R. respectively. Also, determine the ratio of the net work developed by the single cycle to the net work developed by each of the two cycles, Wcycle.

T-12