Page 1 ENEC14017 Water Engineering Associated Learning outcomes LO1, LO2, LO3 and LO6 Key Features Project Type Individual Work Project Starts Week 1 Project Ends Week 5 Report Due 4:00 pm AEST Friday Week 6 26 Aug 2016 Components of the Report Main Report including detailed calculation and references Drawings as appropriate Project Description There are three small projects. These problems are open-ended by design so you may need to make several assumptions or develop your own approach to complete the task. Individual Project 1 Drinking water and WastewaterENEC14017 Water Engineering Project 1 Page 2 Project 1: Determine the design flow for the transmission pipes RA, AB and BC shown on the figure below. Also determine the storage volume required at the storage Reservoir. Design Data: 1. Pump P1 is 3 m below the reservoir water level. 2. Water demand 500 L/c/d 3. Pipe roughness height = 1mm 4. Maximum day factor = 1.8 5. Maximum hour factor = 3.25 6. Assume Pipe diameter Elevation Population to serve Length of Transmission pipe Fire flow demand Minimum pressure required Reservoir Level 100.00 m Distribution Point A 120.00 m 50,000 R to A = 5 Km 15000 L/min 600 kPa Distribution Point B 140.00 m 20,000 A to B = 7 Km 10,000 L/min 550 kPa Distribution Point C 170.00 m 30,000 B to C = 10 Km 12,000 L/min 480 kPa Project 2: Figure 1.0 Water Transmission system P1 P2 P3 A C B RENEC14017 Water Engineering Project 1 Page 3 Project 2: Water supply system design Figure 2.0 represents a simplified pipe network of a small newly planned city with current population P (See P value in Table 1.0). The pipe network is going to be built by using at least two kinds of pipe materials available in the current market. Flows for the area have been disaggregated to the nodes and percentage of population to be served has been added at the node as marked on Figure 2.0. Figure 2.0 Network configuration Table 1.0 Population (for each Team) Team 1 2 3 4 5 6 7 Population P 5000 6000 70000 8000 9000 10000 150000 Use program EPANET (http://www.epa.gov/nrmrl/wswrd/dw/epanet.html#downloads ) to design the network. Velocities in the pipes should be between 0.3 m/s to 1.2 m/s. Pressures at any node cannot drop below 40 m above the ground level. Use a typical hourly demand pattern from the standard or the textbook with reference. If the system is not sufficient to be fed by gravity install pumps after one or more reservoirs. Select pump head characteristic curve from the market. Present a short report from your simulations stating the proposed pipe diameters, pressure and velocities, pump types and operation hours. In the report include output table modified with significant numbers only. The report should include a diagram showing initial assigned flow (and direction) through each pipe before simulation. The loops should be clearly marked. Note: before using program EPANET read the basic information about EPANET provided in the link EPANET Users Manual (PDF). In preparation of your program follow carefully the instructions.ENEC14017 Water Engineering Project 1 Page 4 Project 3: Wastewater system design Design the sanitary sewer system for a rapidly growing city apartment district shown below. The length of the sewer segments, the tributary area of each, and the ground-level elevations are shown. The present population density is 2100/ha. The life span of the sewer system is estimated to be 50 years. Maximum rate of sewage flow (including infiltration) is 500 L/person per day. Required cleansing velocity is 0.6 m/s. Assume minimum pipe diameter of 150 mm and round design pipe diameters to the nearest 5 mm. Assume minimum cover is 1.5 m above the top of the pipes. Assume suitable pipe material. Draw the sketch of sewer arrangement along manholes. The crown levels of severs at the manholes should match. Check velocities in pipes after the final design. Write a short report, clearly stating your input data, calculation example and the final results. Table 2.0 Inflows at the manholes 1 and 6 for different groups Team Input flow at Manhole 1 Input flow at Manhole 6 1 100 l/min 600 l/min 2 200 l/min 500 l/min 3 300 l/min 400 l/min 4 400 l/min 300 l/min 5 500 l/min 200 l/min 6 600 l/min 100 l/min 7 0 l/min 500 l/min