- The Design Margin For The Flow Rate Is 10 You Must Design One Of The Following Sets Of Piping And Determine The Specs 1 (198 KiB) Viewed 53 times
- The Design Margin For The Flow Rate Is 10 You Must Design One Of The Following Sets Of Piping And Determine The Specs 2 (136.46 KiB) Viewed 53 times
- The Design Margin For The Flow Rate Is 10 You Must Design One Of The Following Sets Of Piping And Determine The Specs 3 (100.54 KiB) Viewed 53 times
assignment
The design margin for the flow rate is 10%. You must design one of the following sets of piping and determine the specs for the associated centrifugal pump/turbine, which is based around your student number (B = second-to-last digit): B Design task 0-4 Feed + Feed pump + HP feed 5-9 HP steam - Turbine + Steam The length of piping and pipefitings are based around your student number (y = third-to-last digit, 8 = fourth-to-last digit): Inlet pipe length = 10 ilm Outlet pipe length = 20+ y alm Inlet pipe fittings 90° standard elbows = 258 Fully open gate valves = 1 Couplings = 157 Outlet pipe fittings 90° standard elbows = 3-5 a Fully open gate valves = 1 Couplings = 28 You must determine the following for your piping design, provided that 25-33% of the total pressure drop occurs across the control valve: Nominal pipe sizes in mm and material of construction Fluid velocity in m/s Volumetric flow rate in m3/h Duty in kW System head as a function of 10% flow rate in m vs m3/h for both pipe sections Control valve characteristics for a control valve on each section of piping (pressure drop across the valve in kPa, valve coefficient, valve authority, rangeability) You must also undertake a fel case study and determine which is the best fuel to use for the co-generation plant, from a selection of choices which is based around your student number (y = third-to-last digit). 6 Y Fuel A Fuel B 0 Gasoline Biodiesel 1 Diesel Biodiesel 2 CNG Biodiesel 3 LPG Biodiesel 4 Bioethanol Biodiesel 5 Gasoline Bioethanol Diesel Bioethanol 7 CNG Bioethanol 8 LPG Bioethanol 9 Diesel CNG The boiler duty is 15MW and the attainment is predicted to be 90%. You must determine the following for your fuel case study: Fuel quantity in Lly for both fuel options Fuel costs in Rly for both fuel options Carbon emissions in tCO2-eqly for both fuel options Recommendation for the better choice between the two fuel options In terms of the organisation of this project for ACME Chernical Company LLC, the project manager is Ms Nxumalo, process design will be done by the firm Mokoena & Associates LLC, specialist design will be done by the team led by Mr Ngcongo, procurement will be handled by Mr Singh, and construction will be undertaken by the firm PP Mbona CC. You are performing some of the specialist design work under the supervision of Mr Ngcongo.
Your task is to design some of the piping for a cogeneration plant. Your task is to design a cogeneration plant for the ACME Chemical Company LLC that will supply power to the electrical grid and heat to an industrial client (i.e. a nearby plant) and to undertake a fuel choice case study for the plant. All liquid velocities must be between 1 and 3 m/s. All gas/vapour velocities must be between 15 and 30m/s. The total pressure drop across each section of pipe should be less than 1bar. The basic layout for the plant is as follows: MITIMI Condensate Recycle Hot recycle Cooling tower Heat Condenser Mixer Client discharge LP steam Client Water reservoir 30°C 1barg Excess steam -Work Feed -Duty HP feed Splitter Feed pump Steam Boiler Power HP steam Turbine As shown in the diagram, the condenser must be air-cooled. You are given the following stream information which is based around your student number (a = last digit): Stream Feed HP Feed HP steam Steam Flow rate (kg/h) Temperature (°C) Nominal pressure (barg) 10 000 + 1000 GS 30 1 10 000 + 1000 gs 30 100 10 000 + 1000 s 600 100 10 000 + 1000 5 241 3
You are given the following data to work with: Fuels Gasoline Diesel CNG Cost (R/L) Energy density (MJ/L) Emission factor, LCA method (tCO2-eq/MWh) 12.15 33.9 0.299 13.01 35.7 0.305 8.71 9.0 0.237 10.28 25.0 0.237 10.21 23.2 0.206 12.30 33.3 0.156 LPG Bioethanol Biodiesel Valve coefficient (liquids) Cv = Q (SG/AP)0.5 Where Q = flow rate in gpm AP = pressure drop at design flow rate in psi Valve coefficient (steam) Cv = WK/[2.1 (AP (P1 + P2)0.5 ] Where W = steam flow in lb/h K = 1 + 0.0007*T superheat) for T in OF AP = pressure drop at maximum flow in psi P1 = inlet pressure in psi P2 = outlet pressure in psi 3