The displacement volume of an internal combustion engine is 2.19 liters. The processes within each cylinder...

The displacement volume of an internal combustion engine is 2.19 liters. The processes within each cylinder of the engine are modeled as an air-standard Diesel cycle with a cutoff ratio of 2.5. The state of the air at the beginning of compression is fixed by p1 = 1.6 bar, T1 = 325 K and V1 = 2.36 liters. If the cycle is executed 2100 times per min, determine: a) the compression ratio, b) the net work per cycle, in kJ, c) the maximum temperature, in K, d) the power developed by the engine, in kW, e) and the thermal efficiency.

Expert Solution

samet mamat answered 2 years ago

The displacement volume of an internal combustion engine is 2.22 liters. The processes within each cylinder...

The displacement volume of an internal combustion engine is 2.22 liters. The processes within each cylinder of the engine are modeled as an air-standard Diesel cycle with a cutoff ratio of 2.5. The state of the air at the beginning of compression is fixed by p1 = 1.6 bar, T1 = 325 K and V1 = 2.36 liters. If the cycle is executed 2100 times per min, determine: a) the compression ratio, b) the net work per cycle, in kJ,...

The displacement volume of an internal combustion engine is 2.21 liters. The processes within each cylinder...

The displacement volume of an internal combustion engine is 2.21 liters. The processes within each cylinder of the engine are modeled as an air-standard Diesel cycle with a cutoff ratio of 2.5. The state of the air at the beginning of compression is fixed by p1 = 1.6 bar, T1 = 325 K and V1 = 2.36 liters. If the cycle is executed 2100 times per min, determine: a) the compression ratio, b) the net work per cycle, in kJ,...

A 5-cylinder square engine with a total stroke volume of 3.5 liters, operating according to a...

A 5-cylinder square engine with a total stroke volume of 3.5 liters, operating according to a 4-stroke cycle, operates at 2500 rpm. Since the mechanical efficiency of the engine is 62% and the Indicative work produced for each cylinder is 1 kJ, find the specific power of the engine in kW / cm2.

An ideal four stroke Otto cycle engine has 6 cylinders and a displacement of 4 Liters....

An ideal four stroke Otto cycle engine has 6 cylinders and a displacement of 4 Liters. It has a compression ratio of 8.5:1. If the mean effective pressure is 4000 kPa when operating at 3000 rpm, what will be the indicated power and what is the required heat transfer to the engine from a combusting fuel?

A cylinder with a volume of 10 liters contains 1.32 kg of carbon dioxide at a...

A cylinder with a volume of 10 liters contains 1.32 kg of carbon dioxide at a pressure of 75 atm. The carbon dioxide has a molecular weight of 0.044 kg / mol and its molecule has 2 free rotations. a) Calculate the gas temperature in the cylinder. If the temperature is increased by 50 degrees, how much will the pressure increase? Do not take into account the thermal expansion of the cylinder b) Calculate the number of molecules in the...

The cycle involved in the operation of an internal combustion engine is called the Otto cycle....

The cycle involved in the operation of an internal combustion engine is called the Otto cycle. Air can be considered to be the working gas and assumed perfect. The cycle consists of the following steps. reversible adiabatic compression from A to B reversible constant volume pressure increase from B to C (from the fuel combustion) reversible adiabatic expansion from C to D reversible constant volume pressure decrease from D to A Determine an expression for the efficiency of this engine...

A four-cylinder petrol engine has a swept volume of 2000 cm3, and the clearance volume in...

A four-cylinder petrol engine has a swept volume of 2000 cm3, and the clearance volume in each cylinder is 60 cm3. Calculate the air standard cycle efficiency. If the introduction conditions are 1 bar and 24 ?C, and the maximum cycle temperature is 1400 ?C, calculate the mean effective pressure based on the air standard cycle. ANSWERS(59.1%; 5.30 bar)

Research how an internal combustion engine operates. Describe four steps of a combustion cycle. What materials...

Research how an internal combustion engine operates. Describe four steps of a combustion cycle. What materials go in and out of the engine during each step? How many cylinders are involved in one cycle? What energy processes take place during each stroke? In which steps is work done?

Assume that a single cylinder of an automobile engine has a volume of 523 cm3 ....

Assume that a single cylinder of an automobile engine has a volume of 523 cm3 . a. If the cylinder is full of air at 77 ∘C and 0.980 atm , how many moles of O2 are present? (The mole fraction of O2 in dry air is 0.2095.) b. How many grams of C8H18 could be combusted by this quantity of O2, assuming complete combustion with formation of CO2 and H2O?

THERMODYNAMIC The specifications of a typical reciprocating internal combustion engine coupled with a generator are given...

THERMODYNAMIC The specifications of a typical reciprocating internal combustion engine coupled with a generator are given in Table Q2. With the aid of a P-v diagram, determine the following engine performance characteristics by using constant specific heat at room temperature: i) the total mass contained in the cylinder per cycle, ii) the mass of fuel burned per cycle, iii) the mean effective pressure, iv) the engine power in kW, and v) the specific fuel consumption in g/kWh . Table Q2...

Question