wrong answers:1. 415kw2. 0.21473. 0.595 4. 35.31 SHOW CORRECT ANSWER DO NOT COPY ANYONE 1. A diesel engine produces 500 kW at 3800 rpm while consuming 0.02975 kg/s of fuel.During operation, data shows that its mechanical energy loses 17%, the actual volumeof air going into each cylinder is 90% (The volumetric efficiency has a negligiblevariation) and the actual fuel to air ratio is 0.05. If the ambient temperature at thislocation is 18 °C and the standard atmospheric condition is 14 °C hotter with pressure of100 kPa, what are the standard parameters of the engine:a) Brake Power, kWb) Indicated Specific Fuel Consumption, kg/kW-hrc) Mass of air, kg/sd) Indicated Mean Effective Pressure, kPa

Answered: Image /qna-images/answer/d1cbc9f6-d599-4358-8c16-b1825abffff4.jpg

1. A diesel engine produces 500 kW at 3800 rpm while consuming 0.02975 kg/s of fue During operation, data shows that its mechanical energy loses 17%, the actual volum of air going into each cylinder is 90% (The volumetric efficiency has a negligibl variation) and the actual fuel to air ratio is 0.05. If the ambient temperature at th location is 18 °C and the standard atmospheric condition is 14 °C hotter with pressure 100 kPa, what are the standard parameters of the engine: a) Brake Power, kW

1. A diesel engine produces 500 kW at 3800 rpm while consuming 0.02975 kg/s of fue During operation, data shows that its mechanical energy loses 17%, the actual volum of air going into each cylinder is 90% (The volumetric efficiency has a negligibl variation) and the actual fuel to air ratio is 0.05. If the ambient temperature at th location is 18 °C and the standard atmospheric condition is 14 °C hotter with pressure 100 kPa, what are the standard parameters of the engine: a) Brake Power, kW

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter10: Heat Exchangers

Section: Chapter Questions

Problem 10.19P

See similar textbooks

Similar questions

A 5-feet diameter Chimney is designed to handle a flue gas produced in a steam power plant at a rate of 17 lb/s. The barometric pressure is 29.92-inch Hg. Outside air enters the combustion chamber at 90 F. The average temperature of the flue gas inside the Chimney is 572 F and its molecular weight is 30. Cv = 0.35, Rair = 53.342 ft-lb/lb-R. Calculate: a. The total draft, feet of air. b. The height of the Chimney, feet
A 5-feet diameter Chimney is designed to handle a flue gas produced in a steam power plant at a rate of 17 lb/s. The barometric pressure is 29.92-inch Hg. Outside air enters the combustion chamber at 90 F. The average temperature of the flue gas inside the Chimney is 572 F and its molecular weight is 30. Cv = 0.35, Rair = 53.342 ft-lb/lb-R. Calculate: 5. The total draft, feet of air. 6. The height of the Chimney, feet
The pressure ratio during the constant volume portion of combustion in a Dual Combustion engine is 1.89 . If the pressure at the end of the constant volume addition of heat is 4.49 , what is the pressure at the beginning?
1. For a given pump, the diameter, the gauge pressures at the inlet and outlet are −30 × 103 P a and 200 × 103 P a, respectively. If the flow rate is 0.1 m3/s, and the power required is 25 kW, find the efficiency. The intake and discharge are at the same height. 2. The impeller of a radial-flow turbine has an outer radius of 4 f t, turning at 200 rpm. The volume flow rate is 1000 ft3/s, and it discharges in the axial direction. Neglect all losses. If the tangential component of the velocity at the inlet is 5 f t/s, find: (a) The torque exerted on the impeller. (b) The power developed by the machine.
Air passes through a narrow section during horizontal flow. The initial air temperature is 21 [℃], flow rate 91.5 [m / s], pressure 10.56 [Kg / cm2 abs], later flow rate 152 [m/s], pressure 7.05 [Kg/cm2. abs], what is the temperature of the air at the outlet if there is no outside or heat coming in? The average specific heat of air is 7 [kcal / kg mol. ℃] and calculate as an ideal gas.
1. A LEV system has a centrifugal fan rotating at 714 rpm. The airflow is 6210 cfm, the fan total pressure is 4.07” w.g., and the brake horsepower is 3.12 hp. If the rotating speed is decreased to 620 rpm, what are the brake horsepower? a. 1.43 hp b. 2.04 hp c. 2.41 hp d. 2.67 hp 2.A LEV system has a centrifugal fan rotating at 714 rpm. The airflow is 6210 cfm, the fan total pressure is 4.07” w.g., and the brake horsepower is 3.12 hp. If the rotating speed is decreased to 620 rpm, what are the new value for fan total pressure? 4.15" w.g. 3.87" w.g. 3.07" w.g. 3.94" w.g.
A sewage aeration blower running at 3,500 rpm is designed to deliver 34,000 m3/hr of air from 20°C and 1.03 kg/cm2 atmospheric pressure to a discharge pressure of 1.56 kg/cm2 with an efficiency of 70%. On a hot summer day, the atmospheric temperature rises to 43°C but the barometric pressure does not change. It is desired to vary the blower speed to maintain the same discharge pressure. Determine the blower speed, in RPM, for the summer operation.Determine the Brake Horsepower required, assuming that the efficiency remains constant and assume a mechanical efficiency of 0.9 (k = 1.4 for air).Determine corresponding flow in nominal meter cube per hour.
A sewage aeration blower running at 3,500 rpm is designed to deliver 34,000 m3/hr of air from 20°C and 1.03 kg/cm2 atmospheric pressure to a discharge pressure of 1.56 kg/cm2 with an efficiency of 70%. On a hot summer day, the atmospheric temperature rises to 43°C but the barometric pressure does not change. It is desired to vary the blower speed to maintain the same discharge pressure. Determine the blower speed, in RPM, for the summer operation. Determine corresponding flow in nominal meter cube per hour. Determine the Brake Horsepower required, assuming that the efficiency remains constant and assume a mechanical efficiency of 0.9 (k = 1.4 for air).
Energy balance results (in kW) obtained for the same medium speed single cylinder diesel engine are reported in the following table. For case 1, if the coolant temperature is 105 °C at the outlet of the engine and the volumetric flow rate is 0.22*10-3 m3/s, the temperature of the coolant at the inlet is (in °C): (The coolant is considered water with a density 999 kg/m3 and a specific heat 4.2 k/kg.K). Case N (rpm) bmep (bar) W. O ambient Q ahast shaft 2.2 4.2 19.1 60.3 9.90 3.52 1 500 7.1 24.5 23.8 500 6.1 3.6 5.2 400 3.50 4.9 4.1 1.4 Select one: O a. 142.1 O b. 112.7 O c. 97.31 O d. 87.2 O e. 370.31
This is from Chapter 10 of Sustainable Energy second edition by Richard Dunlap Two locations have the same average wind velocity. Location A has a constant wind velocity of 10 m/s, while Location B has a wind velocity of 5 m/s for 12 hours per day and a wind velocity of 15 m/s for 12 hours per day. Compare the total energy produced per day for identical wind turbines at the two locations. The energy is given by the formula E = 0.5*(air density)*(efficiency)*velocity^3*(Turbine area)*time. Keep the answer in terms of (efficiency)*(Area). **Also is v average velocity or regular, non-average velocity?***
Hello i have an example with an answer , please show the solution since only the answer was shown in this example. And i need its solution to review properly. Thank you 1.Question : An existing pump is used to pump water with the following data at BEP: D = 2.15 in, N = 1784 rpm, ρ = 998 kg/m3, Q = 18 gpm, H = 4.2 ft. A larger pump is to be designed based from the existing one to be used for pumping slurry (ρ = 1220 kg/m3) such that its best efficiency point occurs as close as possible to a volume flow rate of 48 gpm and at a net head of 15 ft. Calculate the new pump diameter in inches. Round off your final answer to 3 decimal placesAnswer: 2.554
explanation of the performance tests undertaken for a wind turbine. With the options found, give a justified recommendation for the best system.