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Estimate the heat transfer area of the heat exchanger. Assume that the ocean water has the same density and specific heat as those of typical water.
What is the heat supplied to the plant by the steam? If the steam is saturated at 220 C and expands to a pressure of 15 kPa with a quality of 0.85, estimate the flow rate of steam?
How much water must be injected to reduce the pressure in the container of .5 MPa and what would the final quality be?
An irrigation pump is used to draw water from a reservoir and deliver it to an irrigation ditch, at a mass flow rate of 15 kg/s. Find the power that must be supplied to the pump.
A heat pump is executed with R-134a under the saturation dome between the pressure limits of 1.6 MPa and 0.2 MPa. If the power consumption of the heat pump is 4.2 kW.
An air conditioner running with R-134a on a cycle executed under the saturation dome between the pressure limits of 0.8 MPa and 0.12 MPa.
What are the wall temperatures at that location and at the 10. 3 ft location? Calculate the arithmetic-mean temperature difference and the log-mean temperature difference for the heated section.
Calculate the Reynolds number based on the wire diameter. If the velocity were to be doubled, and the wire and air stream temperatures were maintained as stated, what is the required ohm ic dissipat
Find the net power output of this plant and the required mass flow rate of river water. The turbine and pump operate isentropically.
The boiler pressure is 3.0 MPa and the cycle has a high temperature of 450 °C and its low temperature is 45 °C. Find the plant's thermal efficiency.
An aqueous ester hydrolysis reaction A -> B + C has k = 0.02 min-1 and an equilibrium constant of 10 with all concentrations in moles/liter. What is the reverse rate constant in the above reaction?
Based upon a comparison of the calculated and measured average temperatures, which planet is most affected by radiation transfer in its atmosphere?
The upper half of the container holds steam (of density 5kg/m^3) while the lower half contains water (of density 1000 kg/m^3). What fraction of the overall mass is steam?
A 20 mm diameter steel bar is to be used as a torsion spring. If the torsional stress in the bar is not to exceed 100 MPa when one end is twisted through an angle of 15degree, what must be the leng
What is the total moment M due to the force about point O? Assume that moments acting counterclockwise about point O are positive whereas moments acting clockwise are negative.
What is the initial mass of LIQUID water? If piston hits stops, what is its temp and pressure, at that instant? If it does not hit the stops, what is the final volume?
Calculate the span of a differential pressure transmitter that is mounted 10 inches below the bottom instrument tap on an open process tank that contains a liquid with a specific gravity of 1.1.
1.7 pound-mass of water fills a container whose volume is 3.7ft³. The pressure in the container is 70 psia. How do you calculate the total internal energy and enthalpy in the container?
Find the force required to pull the block. Assume the velocity distribution in the oil film is linear. The surface is inclined at an angle of 25º from the horizontal.
The process begins with p1=250 kPa and v1=1.5m^3 and ends with p2=100kPa. Determine the final specific volume in m^3/kg. Plot the process on graph of pressure versus specific volume.
Accounting for the variation of specific heats,according to temperature determine the air temperature at the compressor exit, the back work ratio and the thermal efficiency.
Then calculate the annual cost to operate a 60-W, 75-W, and 100-W incandescent bulb and a 15-W compact fluorescent bulb. Assuming the average household operates six 60-W, four 75-W.
What is the maximum pressure (gauge) of the pressurized gas that the pipe can carry before the mercury spills out the open end the manometer?
The allowable stress in tension is epsillon allow=17000psi and the elongation of the bar must not exceed 0.04 in. what is the allowable value of the forces p?
Suppose that you can change the direction of F while keeping its magnitude constant, and you want to choose a direction that maximizes the moment of F about A. What is the magnitude of the resulting