Calculate the mechanical and brake thermal efficiencies

Assignment Help Mechanical Engineering
Reference no: EM131175182

A Four-cylinder petrol engine has an output of 52 kW at 2000 rev/min. A Morse test is carried out and the brake torque readings are 177, 170, 168, and 174 N m respectively. For normal running at this speed the specific fuel consumption is 0.364 kg/kW h. The of the fuel is 44 2(0 kJ" kg. Calculate the mechanical and brake thermal efficiencies of the engine.

Reference no: EM131175182

Questions Cloud

Describe the essential characteristics of a bond : Describe the essential characteristics of a bond. - Summarize call provisions and sinking fund provisions. Explain how these types of provisions individually make bonds more or less risky for a) an investor, and b) the issuer.
What its sustainable growth rate : If the Hunter Corp. has an ROE of 10 and a payout ratio of 18 percent, what is its sustainable growth rate?
Explain how these laws apply to tim coffee shoppe : Describe the types of businesses to which this technology would ideally apply. Examine whether the technology you discovered would be a good investment for Tim's Coffee Shoppe. Then discuss reasons as to why or why not.
Construct a spreadsheet to calculate the payback period : QUESTIONS 1.Construct a spreadsheet to calculate the payback period, internal rate of return, modified internal rate of return, and net present value of the proposed mine.
Calculate the mechanical and brake thermal efficiencies : For normal running at this speed the specific fuel consumption is 0.364 kg/kW h. The of the fuel is 44 2(0 kJ" kg. Calculate the mechanical and brake thermal efficiencies of the engine.
Define ongoing system maintenance roles and responsibilities : Define ongoing system maintenance roles and responsibilities. Describe procedures for evaluating and prioritizing system enhancements proposed by stakeholders.
How would you assess the business risk of hih insurance : HA3032 AUDITING AND ASSURANCE SERVICES ASSIGNMENT. How would you assess the business risk of HIH Insurance Limited? List several inherent risk factors effecting HIH at the financial report level and whether they would have contributed to an increase..
Determine the engine displacement required : The of the fuel is 44 200 Wks, and the free air conditions are 1.013 bar and 15° C.
Define and explain what variable pricing : Define and explain what Variable pricing is. Also explain why some companies refuse to use variable pricing

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  A gaseous mixture consists of 75 methane and 25 ethane by

a gaseous mixture consists of 75 methane and 25 ethane by mass. one million cubic feet of this mixture is trapped in

  Determine e the second-law efficiency of the cycle and the

a four-cylinder four-stroke 1.8-liter modem highspeed compression-ignition engine operates on the ideal dual cycle with

  Nitrogen at 900kpa and 300oc is expended adiabatically and

1. a well-insulated piston cylinder contains 5kg of saturated mixture water at 150kpa. initially three-quarter of the

  Stream consisting of two organic chemicals

A stream consisting of two organic chemicals: 1) Benzene (C6H6) and 2) Toluene (C7H8), enters a separation column. The total mass flow rate of the stream is 10,000 lbm/hr (pounds/hour). The mass percent of benzene in the stream is 40%.

  A solo motor cycle ride and passenger together have a mass

a solo motor cycle ride and passenger together have a mass of 320 kg the combined centre of gravity being 525mm above

  Determine the rate of heat transfer in the heat exchanger

A heat exchanger is to heat water (Cp= 4.18 KJ/Kg.C ) from 25 to 60 C at rate of 0.2 kg/s. the heating is to be accomplished by geothermal water ( Cp= 4.31 KJ/Kg.c ) available at 140C at a mass flow rate of 0.3Kg/s. Determine the rate of heat transfe..

  Comfortable skin temperature

Consider the conditions of Example 3.12 for an air environment, except now the air and surroundings temperatures are both 15°C. Humans respond to cold by shivering, which increases the metabolic heat generation rate. What would the metabolic heat ..

  Find the maximum thermal efficiency of this heat engine

you have a heat engine that has a thermal energy resevoir available at 500c the thermal energy to heat the engine is at

  Describe any observed out-of-control pattern

Is the process in control? If it is out of control, describe any observed out-of-control pattern.

  An opaque horizontal plate has a thickness of l21 mm and

an opaque horizontal plate has a thickness of l21 mm and thermal conductivity k25 wmk. water flows adjacent to the

  A wheel barrow is used to lift a 200 lb load the length

a wheel barrow is used to lift a 200 lb load. the length from the wheel axle to the center of the load is 2 ft. the

  Elastic moduli of cubic alsb

Estimate the ratio of the elastic moduli of cubic AlSb and cubic ZnSe. Both have the sphalerite structure. The lattice parameters are 0.6136 and 0.5669 nm, respectively.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd