The Efficiency of an Automobile Engine is 30 % where the Heat input is provided through the burning of fuel. The fuel burns with a value of 44,000 KJ/Kg. The fuel has a density of 800 Kg/m3 and a volume flow rate of 22 L/hr.
(i) Find the mass flow rate of fuel.
(ii) Find the Net Work Output of the Engine to the wheels
(iii) Draw a Neat Diagram exhibiting the Heat Engine.
22 Liters / hour * 800 kg / 1000 Liters = 17.6 kg/hour
17.6 kg/hour * 44,000 *10^3 J /kg = 774,400 *10^3 Joules/hr
774,400 *10^3 Joules/hr * 0.30 = 232,320 *10^3 Joules/hr output to wheels
I can not draw diagram
If draw diagram then make good solution
To calculate the mass flow rate of fuel, we need to know the volume flow rate and density of the fuel. The volume flow rate is given as 22 L/hr and the density of the fuel is 800 Kg/m3.
Step 1: Convert the volume flow rate from liters to cubic meters
1 L = 0.001 m3
So, 22 L/hr = (22 * 0.001) m3/hr = 0.022 m3/hr
Step 2: Convert hours to seconds
1 hr = 3600 seconds
So, 0.022 m3/hr = 0.022/3600 m3/s
Step 3: Calculate the mass flow rate
Mass Flow Rate = Volume Flow Rate * Density
Mass Flow Rate = (0.022/3600) * 800 Kg/s
Mass Flow Rate = 0.0001322 Kg/s
Therefore, the mass flow rate of fuel is approximately 0.0001322 Kg/s.
To calculate the net work output of the engine, we need to know the efficiency and heat input of the engine. The efficiency is given as 30% and the heat input is provided through the burning of fuel with a value of 44,000 KJ/Kg.
Step 1: Calculate the heat input rate
Heat Input Rate = Mass Flow Rate * Heating Value of Fuel
Heat Input Rate = 0.0001322 Kg/s * 44,000 KJ/Kg
Step 2: Calculate the net work output
Net Work Output = Efficiency * Heat Input Rate
Net Work Output = 0.30 * (0.0001322 Kg/s * 44,000 KJ/Kg)
Therefore, to find the net work output of the engine, you can use the given efficiency and multiply it by the calculated heat input rate.
As for drawing a neat diagram exhibiting the heat engine, I'm sorry, but as a text-based AI bot, I cannot generate or display visual content. However, you can search for "heat engine diagram" on the internet to find illustrations or diagrams that represent a heat engine and its components.