1) A production well was discharged and tested through an atmospheric silencer at sea level (1 barabsolute) using a lip pipe with a diameter of 25 cm and a weir box with a 90 ° V-notch weir. The well wasflowing at a wellhead pressure of 6.5 bar gauge and the measured lip pipe pressure and weir heightwere 3 bar gauge and 0.10 m, respectively. Calculate the discharge enthalpy and total mass flow of thewell. 2) answer A B AND C on the pic 4. A geothermal power plant with two production wells and one reinjection well is operating at aseparator pressure of 7 bar gauge, turbine inlet pressure of 6.5 bar gauge and condenser pressure of0.10 bar absolute. Production well no. 1 has a mass flow rate of 35 kg/s and enthalpy of 2150 kJ/kg.Production well no. 2 has a steam fraction of 64% and enthalpy of 1975 kJ/kg. Total mass flow enteringthe separator is 88 kg/s. Isentropic efficiency of the turbine is 82%. The power plant's house load due topumps and compressors is 1.4 MW. (Note: Include solutions to your answers to get full credit).Calculate the following: (26 points)a) Steam flow of production well no. 2b)Enthalpy of the two-phase fluid entering the separatorc) Steam flow going to the turbined) Brine flow for reinjectione) Gross turbine powertwo-phaseSEPARATORwwPRODUCTION WELLSsteamdump linetTHERMAL PONDSILENCERbrineROCK MUFFLERSCRUBBERREINJECTION WELLTURBINEFigure for Problem No. 4NCG EJECTORGENERATORNCGCONDENSERcondensatecooling waterPUMPCOOLING TOWERcondensateblowdown

A production well was discharged and tested through an atmospheric silencer at sea level (1 bar absolute) using a lip pipe with a diameter of 25 cm and a weir box with a 90 ° V-notch weir. The well was flowing at a wellhead pressure of 6.5 bar gauge and the measured lip pipe pressure and weir height were 3 bar gauge and 0.10 m, respectively. Calculate the discharge enthalpy and total mass flow of the well.

A production well was discharged and tested through an atmospheric silencer at sea level (1 bar absolute) using a lip pipe with a diameter of 25 cm and a weir box with a 90 ° V-notch weir. The well was flowing at a wellhead pressure of 6.5 bar gauge and the measured lip pipe pressure and weir height were 3 bar gauge and 0.10 m, respectively. Calculate the discharge enthalpy and total mass flow of the well.

Sustainable Energy

2nd Edition

ISBN:9781337551663

Author:DUNLAP, Richard A.

Publisher:DUNLAP, Richard A.

Chapter14: Ocean Thermal Energy Conversion And Ocean Salinity Gradient Energy

Section: Chapter Questions

Problem 20P

See similar textbooks

Similar questions

4.15 A gas-condensate reservoir has an areal extent of 200 acres, an average thickness of 15 ft, an average porosity of 0.18, and an initial water saturation of 0.23. A PVT cell is used to simulate the production from the reservoir, and the following data are collected: Condensate Produced from Separator (moles) Wet Gas Pressure Produced (psia) (cc) Wet Gas 4000 (dew point) 3700 3300 0. 0.75 400 0.77 0.0003 450 0.81 0.0002 The initial cell volume was 1850 cc, and the initial gas contained 0.002 moles of condensate. The initial préssure is 4000 psia, and the reservoir temperature is 200°F. Calculate the amount of dry gas (SCF) and condensate (STB) recovered at 3300 psia from the reservoir. The molecular weight and specific gravity of the condensate are 145 and 0.8, respectively.
Water is pumped from a large reservoir to a storage tank 30m above via a constant diameter pipe. The volumetric flow rate during pumping is 55 L/s. This is found to require 25kW of electrical power input to the motor driving the pump. The top of the storage tank is open to the atmosphere. The water density, p=1000kg/m³, and the absolute viscosity, u=1mPa.s. Determine: a) The overall efficiency of the pump-motor unit if all frictional losses in the pipes are neglected. b) The pressure difference between the inlet and the exit of the pump for the same case as part a). c) Frictional losses in the pipe are found to be significant. If the length of pipe between the pump and the storage tank is 130m, the pipe diameter is 20cm, and the surface roughness is 0.4mm, determine a more accurate estimate for the overall efficiency of the pump-motor unit. Minor losses can be neglected.
A power plant in rough terrain has a 100-m stack with an inside radius of 1 m. The plant emits 300 g/s of SO2 from the stack with an exit velocity of 10 m/s at a temperature of 120oC. Ambient temperature is 6oC and the temperature increases at a rate of 2 K/km. At 10 m above ground, surface windspeed is 1.5 m/s on a mostly cloudy night. Find the concentration (mg/m3) of SO2: Directly downwind at a distance of 2 km. At a point located 2 km downwind and 0.1 km off the downwind axis. At the point downwind where it is a maximum. Approximately how far from the stack does this occur?
Given that atmospheric pressure head = 9 m, vapour pressure head (max.) = 1 m, failure head = 40 m and cavitation coefficient o = 0.15, the height at which the turbine can be set above the tail race level is
A pump is attached to a fire hydrant to produce a jet that rises to a minimum height of 13.5 m at a rate of 20 L/s. The pressure is estimated as 100 kPa at the attachment. The hose attached to the pump is 75 mm in diameter and 1.5 m long with a discharge nozzle at the end. The nozzle is inclined at an angle of 50 degrees to the horizontal. The pump has an efficiency of 80%. Neglect friction. Jet 13.5 m 14.0 Determine the minimum power that the pump can supply. a.) 2793 W b.) 3298 W 15.0 Determine the minimum rated power of the pump. c.) 3088 W e.) d.) 2882 W a.) 3860 W c.) 3492 W e.). b.) 3603 W d.) 4123 W
The difference in elevation between the surfaces of water in the storage reservoir and the intake to a turbine was 40.4m. During a test the pressure head at the later point was 38.6m and the discharge was 1.25 m/sec. What was the power delivered to the turbine in KW
You are asked to determine the depth of the well in (cm) for a geothermal operation for producing a power of 854.5 KJ/sec for a water mass flow rate of 2.730 x 106 Kg / hour .
Water from a large tank enters into a pipe and discharges to the atmosphere through a nozzle connected at the other end of the pipe. The tip of the nozzle is located 240 m below the water surface in the reservoir. The jet formed at the tip of the nozzle has a diameter of 100 mm and velocity of 60 m/s. Neglecting minor losses, a) Compute the power produced by the jet in hpb) compute the power lost due to friction in the pipe
8. Energy Equation Water at the Lake William Dam enters a hydraulic turbine through a 30 cm diameter pipe at a rate of 0.6 m³/s and exits through a 25-cm diameter pipe. For the system, elevation effects are negligible and the pressure drop across the turbine is measured to be 148 kPa. For a combined turbine-generator efficiency of 83 percent, calculate (a) hurbine and (b) Wubrine- You look in the FE handbook and see: W turbine = 7/turbine-gen”ightutine, e turbine-genhtubine, e 30 cm diameter 25 cm diameter Turbine Generator
An open tank contains 5.7 m of water covered with 2.8 m of kerosene with unit weight of 8.0 kN/m³. Find the following: A. Pressure at the interface (kPa) B. Pressure at the bottom of the tank (kPa)
7. A heavy Oil (y = 9000 N/m³) is flowing at a rate of 0.65 m³/s in the system shown. If the total head lost between point reservoir A to closed tank B is 2.5 m and the pressure at B is 70 kPa A) Compute the added energy produce by the pump B) Compute the power in hp that must be supplied by the pump to the flow C) Compute for the pressure head at point 1 if the pipe from A to 1 is 150 m long and 600 mm diameter, n = 0.011 EL 50m 600 mm El Om 70 kPa El 60 m
For an SBR process, the sludge takes 45 minutes to settle and the depth of liquid in the reactor is 40% of the depth of the reactor after draw-off to prevent disturbing the settled sludge. The draw-off period takes an additional 20 minutes after the settle face. An idle time of 10 minutes is to be allowed. What is the required volume of each of the tanks in 2-tank and 3-tank SBR systems to handle a flow of 55000 M cubed per day to provide a react time of 60 minutes?