Draw a schematic diagram of a supercharged engine and a turbocharged engine layout:
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- I need help on answering these from the following question below: 1. you need to calculate the mass flow rate of air inducted to the engine 2. from your answer, in the question above, you need to determine the ratios of heat release in the flue gas and cooling water against input power for the engine 3. you need to discuss how emissions can be minimised with regards to the engine The question: A diesel engine is a type of internal combustion engine that uses compression ignitio to turn energy in diesel fuel to rotary mechanical energy. A four-stroke (i = 0.5 for fourstroke engine, stroke = 150 mm and revolution = 2100 min−1) diesel engine with 6 cylinders and an effective specific fuel consumption of 0.23 kg kW−1h−1 has an effective and indicated mean pressure of 9.2 bar and 6.8 bar, respectively, and a compression ratio of 17. The ambient temperature and pressure of the diesel engine is 30 ℃ and 1.017 bar, respectively, and the temperature of the exhaust gas is 650 ℃. The clearance…Explain in detail what is the Feed and the Product streams for Mechanical Draft Cooling TowerExplain with suitable sketches the function of: i) Components in the vapour compression cycle ii) The indoor unit and outdoor unit iii) Cooling tower iv) Chiller|
- Task 8 - Induction Systems In order for combustion to take place an induction system is required to feed fuel and air into the cylinder of an engine. To improve efficiency and performance spark ignition (SI) engines are now adopting compression ignition (CI) engine technology by injecting fuel directly into the cylinder just before the point of ignition however these engines still require an air induction system. Carburettors: before fuel injection technology had been fully developed carburettors (carbs) were used to create a fuel/air ratio at different engine speeds and loads. A cold start facility was also fitted albeit manually operated. The demand for more performance has meant the fixed choke carb' was no longer suitable. More complex carbs' were developed (twin choke) as well as variable choke (constant depression) carbs which used engine vacuum (during throttle opening) to vary the size of choke according to operating requirements.In aircon sizing, what do you think are other examples of factors affecting the heat load of a certain room?Why is information regarding the specific volume of gases important to the designer of air-conditioning, heating, and refrigeration equipment?
- -Experiment- Air conditioning (Study of Air Conditioning Unit: Evaluation of heating and steam injection performance) 1.Compare the effect of steam injection on humidification process with that of hot water spraying? 2. Why does the process of steam injection used in applications which need to maintain air with high humidity? 3. What is the reason of having preheater before steam injector?(b) Bathroom sinks and some other fixtures include an overflow opening in the basin. This opening is located on the wall and near the top of the basin. The overflow opening serves two important functions: If the water tap is left on while the drain stopper is closed, the opening will channel water down into the drain opening rather than letting is spill out of the sink onto the floor. The overflow allows the sink to drain faster by introducing air into the system. A sink with a dimension given in Figure Q2(b), has water flows into it at a rate of 8 L/min. If the drain stopper is closed and water level in the sink remains constant, determine the average velocity of water flows through the 3.0 cm diameter overflow hole. Front 3 cm diameter overflow holes Q-8 L/min 15 3/4| 40 cm 15 cm Side (a) Figure Q2: (a) Picture of the sink; (b) Sink dimension (Ь)Please help me. (45 mins. left), I'll give a thumbs up) Given the ultimate/gravimetric analysis of coal as follows: C=81.95%, H2 = 4.63%, S=0.96%, N2=1.3%, O2=5.75%, Ash=6.09%, Moisture = 3.05% Using ash and moisture free analysis. Determine the; mass of the wet flue gas
- Q.4 (a) Explain the steps involved in representing the natural and mechanically driven air flows within a building using the nodal network method.intake valve intake compression JO BI Tuel injector the temperature of the gas; power exnaust vaive 0010 exhaust The diagrams show the cylinder of a petrol engine in 4 stages. Petrol vapour and air are drawn into the cylinder, The mixture is then squeezed together, and then exploded by a spark. The explosion pushes down the piston. The exhaust gases are then expelled from the cylinder. Use the first law of thermodynamics to analyse the energy changes during the process. At each stage explain what happens to i) the pressure of the gas; ii)Total heat input (Qin)Notes: Assume the steam is reheated to the inlet temperature of the high-pressure turbine. The moisture content of the steam at the exit of the low-pressure turbine is not to exceed 9.5%