Laboratory Project Report – Diesel Vs Electric - Engineering Assignment Help

Assignment Task:

Task:

Please complete the laboratory exercise and submit a report. The report should be produced with a word processor such as Microsoft Word. Although you will do laboratory work in groups, each student must submit their own individual laboratory report. https://www.cleanenergyfuels.com/driving-a-diesel-car/ Fig. 1 Diesel vs Electric. The comic shown in Fig. 1 raises some important questions for the engineer. Your task is to take results from the lab comparing two different types of motors – a diesel motor and an electric motor and compare them for use in an engineering application described below Laboratory

1: Diesel vs Electric You are part of an engineering team that is developing a trickle irrigation system for agricultural purposes. The system consists of a 22000 L water tank on a stand which is 16 m high and a petrol or diesel powered pump to pump the water from a dam up into the elevated tank (Fig. 2). Your task is to report on the expected performance (from a thermodynamics point of view) of some available motor and pump combinations for the system. You must base your conclusions on experimental data you have collected from the laboratory. The range of choices under consideration has been narrowed to three pumps and two motors. One of the motors is a 5HP four-stroke diesel motor and the other is a 5HP electric motor. These motors are located in the mechanical engineering lab at Griffith University along with test beds and dynamometers which you will use to measure their performance and simulate the load that would be placed on the motor by the pump. The electric motor is at Nathan Campus while the diesel motor is on the Gold Coast. You will test the motor on your campus and raw data will be provided for the motor on the other campus. For those who cannot attend the lab due to studying remotely or if the 2 2201ENG Thermodynamics – Lab. Assignment lab is closed due to the pandemic, the required data for both motors will be provided to complete the assignment. Another engineer on the team has analized the piping system in Fig. 2 (you will learn how to do this when you study fluid mechanics) and has found that if the flow rate, Q (m3 /s) is decided then the required difference in head (meters of water) between the inlet and outlet of the pump follows the following equation (Note: in hydraulics traditionally, pressure is measured in meters of water and is called ‘head’. Multiply hpump by (?g) to get pressure difference between pump outlet and inlet in pascals): ????? = 18 + ?.?? ?? ???? ? (1) This equation is usually called the ‘system curve’. It is unique for each pipe system. It is different depending on the length and diameter of the pipe, the pipe fittings selected for the system and the difference in elevation between the supply water and tank. D is the inlet diameter of the pipe (in meters) and Q is the flow rate in m3 /s. Q2 /D4 appears in the equation because losses in a piping system are usually proportional to the square of the water velocity inside the pipe. The engineer suggests a pipe with inside diameter D = 32 mm = 0.032 m. Fig. 3 shows the characteristic performance curves for three different pumps being considered: Pump A, Pump B and Pump C supplied by the manufacturer. The curves show the difference in head supplied by the pump for any given flow rate. Efficiencies listed in Fig. 3 are mechanical efficiencies for the pump. If you plot Eq. (1) on the graph shown in Fig. 3, the points where Eq. (1) intercepts the characteristic curves for pumps A, B and C will show the required operating conditions for your motor.

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