4. Considering the Typical Energy Balance for gasoline engine, @ atmospheric condition of 1.013 bar and 26°C with constant speed of 2800 rpm, intake air flow rate of 190 Kg/hr, and volumetric efficiency of 75%. If 16.61 KW of energy loss to surrounding was considered. Determine a. The amount of torque in Nm needed b. The mass flow rate of fuel in Kg/hr with calorific value of 45 400 KJ/Kg c. The volume displacement Note: Typical Full Load Energy Balance for Gasoline Engine based on 100% fuel input ЕСТВР - 25% ELTCW -30% ELTEG - 37% ELTS 8%

4. Considering the Typical Energy Balance for gasoline engine, @ atmospheric condition of 1.013 bar and 26°C with constant speed of 2800 rpm, intake air flow rate of 190 Kg/hr, and volumetric efficiency of 75%. If 16.61 KW of energy loss to surrounding was considered. Determine a. The amount of torque in Nm needed b. The mass flow rate of fuel in Kg/hr with calorific value of 45 400 KJ/Kg c. The volume displacement Note: Typical Full Load Energy Balance for Gasoline Engine based on 100% fuel input ЕСТВР - 25% ELTCW -30% ELTEG - 37% ELTS 8%

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter2: Matter And Energy

Section: Chapter Questions

Problem 30RQ: A gas is compressed inside a compressor's cylinder. When the piston is at its bottom dead center,...

See similar textbooks

Similar questions

Liquid octane enters an internal combustion engine operating at steady state with a mass flow rate of 0.004 lb/sand is mixed with the theoretical amount of air. The rate of heat transfer is 22.22 BTU/s. If the density of octane is 5.88 lb/gal, how many gallons of fuel would be used in 2 h of continuous operation of the engine?
A water vapor turbine operates between 30 bar, 400 ° C input conditions. 160 m / s and an output corresponding to saturated steam at 0.7 bar and a speed of 100 m / s. The mass flow is 1,200 kg / min. And the output power is 10,800 kW. Deter- Men the magnitude and sense of heat transferred in KJ / min, if the variation of potential energy is negligible.
A turbine is driven by a system that enters the turbine at the ff. conditions: 200 kg/h, 39 atm, 501 deg C, 49 m/s linear speed. The steam exits at a point 8 meters below the inlet stream of the turbine with the following conditions: atmospheric pressure, 290 m/s speed. 69000 W of shft work is delivered by the turbine while 100 kcal/h heat is lost. What is the value of (a) expansion work and (b) flow work? If the value is zero, explain why is it so.If it cannot be calculated, explain why.
A two stage compressor with first stage piston displacement of 94,390 cu.m/sec is driven by a motor. Motor output is 35 HP, suction temperature 22 degC, volumetric efficiency is 85%, mechanical efficiency is 95%, the intercooler pressure is 30 psi gage. Air temperature in and out of the intercooler are 105deg C and 44 degC, respectively. Final discharge pressure is 100 psi gage, while suctionis estimated to be 14.4 psi. Determine the compression efficiency.
Q22(i) Construct the flow chart (diagram) and compute the total heat required to convert 900 g of ice at –30°C to steam at 145 °C. (Cice = 2090 J/kg.°C, Cwater = 4186 J/kg.°C, Csteam = 2010 J/kg.°C, Lf = 3.33 × 105 J/kg, Lv = 2.26 × 106 J/kg.)
Air flows through a nozzle. It enters at 20 bar and 1100°F and exits at 10 bar and 800°F. The inlet diameter ratio between outlet diameter is 3. Consider steady state, determine air inlet and outlet velocities, in ft/s
os/ A 1.6m’ tank is filled with air ata pressure of § bar and a temperature of 100°C, The air is then let off to the atmosphere through a valve. Assuming no heat transfer, determine the work obtainable by utilizing the kinctic energy of the discharge air to run a frctionless turbine. Take : Atmospheric pressure = | bar ; ¢, for air = 1 Kikg K : ¢, for air = 0.711 KkgK.
A certain gas with cP= 0.530 Btu/lbm-R and R = 100 ft-lbf/ lbm-R expands from 10 cu.ft and 60 F to 30 cu.ft. while pressure remains constant at 20 psia. Compute a) T2 in oF b) dH c) dU d) dS e) For internally reversible nonflow process, what is Work?
A turbine is driven by a system that enters the turbine at the ff. conditions: 500 kg/h, 44 atm, 450 deg C, 60 m/s linear speed. The steam exits at a point five meters below the inlet stream of the turbine with the following conditions: atmospheric pressure, 360 m/s speed. 70,000 W of shaft work is delivered by the turbine while 104 kilocalories/h heat is lost. Why is expansion work 0 and why cannot the flow work be calculated?
A turbine is driven by a system that enters the turbine at the ff. conditions: 500 kg/h, 44 atm, 450 deg C, 60 m/s linear speed. The steam exits at a point five meters below the inlet stream of the turbine with the following conditions: atmospheric pressure, 360 m/s speed. 70,000 W of shaft work is delivered by the turbine while 104 kilocalories/h heat is lost. Here are the questions to be answered: 1. Why is the value of Wexp 0? (Explain) 2. Given the above values, can you calculate the Wflow? (Yes/No)
4. A 14 x 12-in., single-cylinder, double-acting air compressor with 5.5% clearance operates at 12 rpm. The suction pressure and temperature are 14 psia and 100°F, respectively. The discharge pressure is 42 psia. Compression and expansion processes are polytropic, with n= 1.30. Determine (a) the volumetric efficiency, (b) mass and volume at suction conditions handled each minute, (c) the work, (d) the heat rejected, (e) the indicated air hp developed if the polytropic compression efficiency is 75%, and (f) the compression efficiency. Answer: (a) 92.7% (b) 247.8 cfm, 16.72 lb/min (c) -18.93 hp (d) -175.7 Btu/min (e) -25.24 hp (f) 77.42%
In a constant pressure open cycle gas turbine air enters at 1 bar and 20°C and leaves the compressor at 5 bar. Using the following data: Temperature of gases entering the turbine = 680°C, pressure loss in the combustion chamber = 0.1 bar; Compressor Efficiency = 85%, Turbine Efficiency = 80%, Combustion Efficiency = 85%, k = 1.4 and Cp = 1.024 kJ/kg∙K for the air and gas.Find the quantity of air circulation, in kg/sec, if the plant develops 1,065 kW.Find the heat supplied, in kJ per kg of air circulationFind the percent thermal efficiency of the cycle, neglecting the mass of fuel.