Chapter 6, Problem 6.114P

THERMODYNAMICS - Conservation of Mass UPLOAD AND EXPLAIN COMPLETE SOLUTION. Consider steam that enters a turbine at 70 bar, 530oC with a velocity of 64 m/s. The turbine is operating at steady state conditions and the steam leaves the turbine as a dry saturated vapor at 10 bar. The inlet diameter of the turbine is 0.45 m and the outlet diameter is 3.6 m. Determine the mass flow rate of steam through the turbine.

Air enters a two-stage compressor operating at steady state at 560°R, 14 Ibf/in.? The overall pressure ratio across the stages is 20 and each stage operates isentropically. Intercooling occurs at constant pressure at the value that minimizes compressor work input, with air exiting the intercooler at 560°R. When the temperature of the air entering each compressor stage is the same, the minimum total compressor work input per unit of mass flowing occurs when the pressure ratio is the same across each stage. Assuming ideal gas behavior, with k = 1.4, determine the work per unit mass of air flowing for the two-stage compressor, in Btu per Ib of air flowing. W. Btu/lb m

Air modeled as an ideal gas enters a turbine operating at steady state at 1040 K, 278 kPa and exits at 120 kPa. The mass flow rate is 5.5 kg/s, and the power developed is 1120 kW. Stray heat transfer and kinetic and potential energy effects are negligible. Assuming k = 1.4 (specific heats ratio), determine the isentropic turbine efficiency. %3D 89.3% 80.4% 83.9% 91.4% 78.1%

A Gas enters an engine cylinder with volumetric analysis as follows: Oxygen =12.5%, Carbon Dioxide = 13% and nitrogen =74.5%.at the beginning of expansion, the temperature is 550° C, then expands reversibly with final to initial volume ratio of 6:1. If the process follows PV^1.25 = C, Calculate the heat flow in kJ/kg

12. thermodynamics

A steady-state system for producing power consist of a pump, heat exchanger and a turbine. Water at 1.0 bar and 20°C (state 1) enters the adiabatic pump and leaves at 10 bar (state 2). The pump draws 110 kW of power, and the mass flow rate of water is 45 kg/s. The water leaving the pump enters a heat exchanger and heated at constant pressure to 400°C (state 3) using exhaust gases (Cp of gases = 1.1 kJ/kgK) that enters at 500°C and exits at 182°C. The steam is adiabatically expanded in a turbine having an isentropic efficiency of 0.71. The turbine exhausts (state 4) to the surroundings at 1.0 bar. a.) What is the rate at which heat must be supplied from the heat source to the water to bring it to 400°C? b.) Determine the power produced by the turbine

Air as an ideal gas flows through the compressor and heat exchanger shown in the figure. A separate liquid stream also flows through the heat exchanger. The data given are for operation at steady state. Stray heat transfer to the surroundings can be neglected, as can all kinetic and potential energy changes. Determine the compressor power, in kW, and the mass flow rate of the cooling water, in kg/s.

Step by step solution please I only have 1 attempt thank you.

The O2 input conditions to a nozzle, which operates in steady state, are 60 bar, 300 K and 1 m/s. The gas expands isentropically at 30 bar. Determine the output speed in m/s. Assume that oxygen is described by the Peng-Robinson equation