Question 2 Calculate the chemically correct air/fuel ratio for the combustion of coal with the following mass analysis: C (74%), H (5%), O (5%), N (1%), S (1%), H₂O (9%), Ash (5%). [10.01]
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- 1. How does the presence of Nitrogen in air affect the outcome of a combustion process? How does the presence of moisture in air affect the outcome of a combustion process? and What are the approximate chemical compositions of gasoline, diesel fuel, and natural gas? BoldItalicUnderlineSuppose we got the following data during a test of a 2- stroke engine in which gas is usedas a fuel:Diameter of the piston = 149 mmStroke length = 179 mmClearance volume = 0.88 literrpm of the engine = 302Indicated mean effective pressure = 6.0 barGas consumption = 6.0 m3/hCalorific value of the gas (fuel) = 16990 kJ/m3Make a clear sketch the geometry of this engine using the data and determine thefollowing:i. Indicated power developed by the engine in watt.ii. Air Standard Efficiencyiii. Indicated thermal efficiency of the engine.Within the cylinder of an internal combustion engine, gasoline with an ordinary octane rating (C8H18) is intended to burn with an excess of air equal to fifty percent. a) Please display the actual equation for combustion.b) You need to calculate the actual air fuel ratio.c) Figure out the mass of wet products of combustion produced per kilogram of fuel, as well as the mass of dry products of combustion produced per kilogram of fuel
- A fuel has the following composition by weight : Carbon = 86% ; hydrogen = 11.75% and oxygen = 2.25%. Calculate the theoretical air supply per kg of fuel, and the weight of products of combustion per kg of fuel.Subject: Air Pollution Formation and Control Do not just copy and paster other online answers Estimate the total volumetric flow rate gas and the total mass emission rate of the particles in Fig 4.3. Ans : (a) volumetric flowrate = 1.9E3 ft3/s or 1.1E5 acfm ; (b) mass flowrate = 58 lbm/hra) At an engine speed of 1000 rpm, what is the approximate penetration depth of the temperature fluctuations in (a) a cast iron block and (b) an aluminum engine block? b) Measurements of the exhaust gases of a hydrogen-fueled engine indicate a composition of 71.0% N2, 25.0% O2, and 3.9% H2O. At what equivalence ratio was the engine operated?
- The data provided by a water bottling company for the year 2020 to carry out Break Even Analysis and provide them the results, is as follows. The fixed cost of the year is 9000.0 R.O The estimated sales are 2200000 units The cost of water treatment / unit 12 baize The cost of bottling / unit 08 baize The cost of labelling / unit 08 baize The cost packing / unit 10 baize The cost of labour and maintenance / unit 20 baize The cost of 1 liter bottle (plastic bottle) 12 baize Each unit is sold at price 95 baize Construct the B.E.P chart on a graph sheet and indicate M.o.S, B.E.P and also indicate the new B.E.P, & M.o.S after the improvement measures has been taken and show all mathematical calculations. 1. Determine the B.E.P 2. Determine the profit 3. Margin of safety. 4. Write your decisions to improve the profits of the company and to reduce the B.E.P9.16. One kind of thermodynamic diagram that is useful in engineering problems is the P–H diagram, in which the x-axis is molar enthalpy and the y-axis is pressure.(a) Several kinds of iso-lines can be drawn in such a diagram, including isotherms(constant temperature), isentrops (constant entropy), and isochores (constant molar volume). For each of these three cases, find expressions for the slope of these lines on a P–H diagram in terms of measurable properties.(b) Find expressions for these slopes for the ideal monatomic gas, in terms of T and P. Explain on physical grounds any unusual resultsThe three T's of combustion are commonly referre1 d to as a. time, temperature, and type of fuel b. temperature, type of fuel, and turbulence c. time, turbulence, and temperature d. type of fuel, turbulence, and time
- 1a. Discuss methanol as fuel used in the transport sector. 1b. With the aid of a diagram explain greenhouse effect, state and explain how we can migrate greenhouse effect. 1c. Write briefly on how to maximize solar energy in addressing the short falls of energy demand in an area.Thermodynamics Question: Steam enters a steady-flow throttling valve at 2 kg/s, temperature 400°C, and pressure200 kPa. It leaves at temperature 100°C and pressure100 kPa. Heat is lost to surroundings at a rate of 100 kW. The surroundings are 25°C. Is this process feasible? Use: https://irc.wisc.edu/properties/a) The number of kilocalories in food is determined by calorimetry techniques in which the food is burned and the amount of heat transfer is measured. How many kilocalories per gram are there in a 5.00-g peanut if the energy from burning it is transferred to 0.500 kg of water held in a 0.100-kg aluminum cup, causing a 54.9C temperature increase? (b) Compare your answer to labeling information found on a package of peanuts and comment on whether the values are consistent.