Problem 3 - Sparky needs helium for an experimental project. The helium is stored in a storage tank at 20°C and 300 kPa. The helium exits through a converging nozzle to the environment (100 kPa atmospheric pressure) and has 10 mm exit diameter. Determine the exit flow rate of the helium. Helium's ratio of specific heats is 1.667. This is a compressible flow problem. Only use equations and tables from the textbook to solve this problem. Note the figures in the textbook and textbook appendices are based in air, not helium, and are not valid for this problem. 1 10 mm

Liquid A, B, and C in the container shown below have specific gravities of 0.80, 1.00 and 1.60, respectively. With the liquid surfaces at the elevation shown, what is the pressure in Pascal on the bottom of the tank? At what elevation will the liquid stand in each of the piezometer tubes?

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Several liquids are layered inside a tank with pressur- ized air at the top. If the air pressure is 3.2 kPa, calcu- late the pressure at the bottom of the tank if the lay- ers include 20 cm of SAE 10 oil, 10 cm of water, 15 cm of glycerin, and 18 cm of carbon tetrachloride.

Problem 4 -Flame Consulting designed an experiment where helium is extracted from a storage tank and flows through a 150 mm diameter pipe that is 90 m long. The inlet conditions for the pipe (location 1 in the diagram) are as follows: inlet temperature of 285 K; absolute pressure of 165 kPa; and inlet velocity of 125 m/sec. The consulting company determined the average friction factor in the pipe (f) is 0.004. Helium's specific heat ratio (k) is 1.667. Determine the mass flow rate through the pipe and if the pipe exit is choked (including justification). Additionally outline how Sparky could determine the friction force acting on the duct (do not solve the problem just outline the solution process). This is a compressible flow problem. Only use equations and tables from the textbook to solve this problem. Note the figures in the textbook and textbook appendices are based on air, not helium, and are not valid. Evaluate the gas constant at 20°C. It may help to create a free-body diagram,…

The cyclindrical tank with hemispherical ends shown in Fig. contains a volatile liquid and its vapor. The liquid density is 800 kg/m', and its vapor density is negligible. The pressure in the vapor is 120 kPa (abs), and the atmospheric pressure is 101 kPa (abs). Determine: (a) the gage pressure reading on the pressure gage; and (b) the height, h, of the mercury manometer. Open Vapor 1m 1 m Liquid 1 m Mercury E E

Argon gas flows through a well-insulated nozzle at steady state. The temperature and velocity at the inlet are 570°R and 150 ft/s, respectively. At the exit, the temperature is 460°R and the pressure is 40 lb/in². The area of the exit is 0.0085 ft². Use the ideal gas model with k = 1.67, and neglect potential energy effects. Determine the velocity at the exit, in ft/s, and the mass flow rate, in lb/s.

Crude oil (with specific weight γoil = 55 lb/ft3 ) is pumped at a rate of 400 gallons per minute from a test separator at A to the stock tank shown using a pipe that has a diameter of 4 inches. The pressure at A (to the left of the pump or prior to the pump) is 4 psi and the stock tank is open to the atmosphere. The friction head loss along the entire length of the pipe from A to B is 45 inches. Note that 1ft3 = 7.48 gallons. (a) Determine the velocity in the pipe. (b) Determine the head gain, ℎ??, delivered by the pump to the flow. (c) Determine the power required to run the pump if it is 90% efficient.

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•Determine the unit weight of the liquid when it is at the level shown. (Express the answer in English unit) •Determine the weight of the liquid. (Express the answer in English unit) •Assuming no mixing of liquids occur, if glycerin (SG= 1.26) is poured into the tank: a.) it will sink to the bottom of the tank b.) it will float on the surface of the liquid c.) it will be suspended in the liquid  * answer should be in 3 decimal places