Air flows through the brayton cycle with a mass flow rate

Assignment Help Mechanical Engineering

Reference no: EM13628435

Modified Brayton cycle is to be analyzed using the air-standard assumption with constant specific heats at a temperature of 300K. Air flows through the Brayton cycle with a mass flow rate of 400 kg/s and enters the first compressor with a pressure of 100kPa and a density of 1.2 kg/m3.

It is then compressed to 800kPa in the first of two compressors with an isentropic efficiency of 85%. After this compression, the air is cooled at constant pressure where it is now found to have a volumetric flow rate of 57.4 m3/s when it enters the second compressor. The second compressor has an isentropic efficiency of 85% as well and the air leaves this stage of the cycle at a pressure of 2.5 MPa.
The cycle has a regenerator with an effectiveness of 75% which heats the air to a temperature of 600K after leaving the final compressor. The air enters the first turbine which has an isentropic efficiency of 90% at a temperature of 1200K after which it expands to a pressure of 700 kPa. The second and last turbine stage has an isentropic efficiency of 80%.

Determine:

a) Sketch the cycle on a T-S diagram and clearly label all your states
b) The temperature of the air leaving the last turbine
c) The net power production of the cycle
d) The thermal efficiency of the cycle

Reference no: EM13628435

Questions Cloud

A sample of an unknown volatile liquid was injected into a : a sample of an unknown volatile liquid was injected into a dumas flask and heated until no visible traces of the liquid

Calculate the convective heat transfer coefficient : air at a pressure of 200 kpa and free stream temperature of 27 degc flows over a square plate at a velocity of 30 ms.

What is its speed when it reaches its highest point after : the string in the figure below is l 148 cm long has a ball attached to one end and is fixed at its other end. the

The life expectancy of point-of-sale pos terminals is : the life expectancy of point-of-sale pos terminals is normally distributed with a mean of 4 years and a standard

Air flows through the brayton cycle with a mass flow rate : modified brayton cycle is to be analyzed using the air-standard assumption with constant specific heats at a

Determine the mole fractions of polyvinyl chloride and : determine the mole fractions of polyvinyl chloride and polyvinyl acetate in a copolymer having a molecular weight of

The following probability distribution shows the likelihood : a company is studying the number of monthly absences among its 125 employees. the following probability distribution

A 3 micro-colomb charge is located 1m from a 5 micro-colomb : a 3 micro-colomb charge is located 1m from a 5 micro-colomb charge. what new distance between the two charges would

A rigid well insulated tank contains a two-phase mixture : a rigid well insulated tank contains a two-phase mixture consisting of 0.07lb of saturated liquid water and 0.07lb of

User Account

All Pages