# Month: February 2022

## A stream of gases at 7.5 bar, 750°C and 140.. solved problem

A stream of gases at 7.5 bar, 750°C and 140 m/s is passed through a turbine of a jet engine. The stream comes out of the turbine at 2.0 bar, 550°C and 280 m/s. The process may be assumed adiabatic. The enthalpies of gas at the entry and exit of the turbine are 950 kJ/kg …

## The fluid rejects 100 kJ/s passing through.. solved problem

The working fluid, in a steady flow process flows at a rate of 220 kg/min. The fluid rejects 100 kJ/s passing through the system. The conditions of the fluid at inlet and outlet are given as : C1 = 320 m/s, p1 = 6.0 bar. u1 = 2000 kJ/kg, v1 = 0.36 m3/kg and C2 …

## Steam at a 6.87 bar, 205 °C, enters in an.. solved problem

Steam at a 6.87 bar, 205 °C, enters in an insulated nozzle with a velocity of 50 m/s. It leaves at a pressure of 1.37 bar and a velocity of 500 m/s. Determine the final enthalpy of steam. Steam at a 6.87 bar, 205 °C, enters in an insulated nozzle with a velocity of 50 …

## A turbine, operating.. receives 4500 kg of steam.. solved problem

A turbine, operating under steady-flow conditions, receives 4500 kg of steam per hour. The steam enters the turbine at a velocity of 2800 m/min, an elevation of 5.5 m and a specific enthalpy of 2800 kJ/kg. It leaves the turbine at a velocity of 5600 m/min, an elevation of 1.5 m and a specific enthalpy …

## In a steam plant, 1 kg of water per second.. solved problem

In a steam plant, 1 kg of water per second, is supplied to the boiler. The enthalpy and velocity of water entering the boiler are 800 kJ/kg anti 5 m/s. The water receives 22oo kJ/kg of heat in the boiler at constant pressure. The steam after passing through the turbine comes out with a velocity …

## In an air compressor air.. pressure of  7 bar solved problem

In an air compressor air flows steadily at the rate of 0.5 kg/s through an air compressor. It enters the compressor at 6 m/s with a pressure of 1 bar and a specific volume of 0.85 m3/kg and leaves, at 5 m/s, with a pressure of  7 bar and a specific volume of 0.16 m3/kg. …

## In a gas turbine unit.. is 15 kg/s and the.. solved problem

In a gas turbine unit, the gases flow through the turbine is 15 kg/s and the power developed by the turbine is  12000 kW. The enthalpies of gases at the inlet and outlet are 1260 kJ/kg and 400 kJ/kg respectively and the velocity of gases al the inlet and outlet are 50 m/s and 110 …

## 10 kg of fluid per minute goes through a.. solved problem

10 kg of fluid per minute goes through a reversible steady flow process. The properties of fluid at the inlet are : p1 = 1.6 bar, ρ1 = 26 kg/m3, C1 = 110 m/s and u1 = 910 kJ/kg and at the exit are p2 = 5.5 bar, ρ2 = 5.5 kg/m3, C2 = 190 …

## Fig shows a cylinder of 8 cm inside diameter. solved problem

Fig shows a cylinder of 8 cm inside diameter having a piston loaded with a spring (stiffness = 150 N/cm of compression). The initial pressure, volume and temperature of air in the cylinder are 3 x 105 N/m2, 0.000045 m3 and 2o°C respectively. Determine the amount of heat added to the system so that piston …

## 1 kg of ethane (perfect) gas is compressed solved problem

1 kg of ethane (perfect) gas is compressed from 1.1 bar, 27 °C according to a law pV1·3 = constant, until the pressure is 6.6 bar. Calculate the heat flow to or from the cylinder walls. Given : Molecular weight of ethane = 30, cp = 1.76 kJ/kg K. 1 kg of ethane (perfect) gas is …