8. (With regeneration and two-stage compression) Air enters the compressor of a Brayton cycle with regeneration at 100 kPa, 300K with a mass flow rate of 6 kg/s. The compressor pressure ratio is 10, and the turbine inlet temperature is 1400K. The pressure ratios across each compressor stage are equal. The intercooling is perfect. The turbine and compressor each have isentropic efficiencies of 80%. The regenerative effectiveness is 80%. Determine: (a) the thermal efficiency of the cycle (b) the back work ratio (c) the net power developed in kW

MODIFIED NON-IDEAL BRAYTON CYCLE GAS TURBINE: Use Air Standard Analysis SHOW COMPLETE SOLUTION.

Thermodynamics 1 Pls help me asap

Air enters the compressor of a regenerative ideal air-standard Brayton cycle at 100kPa,300K, with a volumetric flow rate of 4 m3/s. The compressor pressure ratio is 8, theregenerator effectiveness is 75% and the turbine inlet temperature is 1300K.Determine:(a) The back work ratio.(b) The net power developed.(c) The thermal efficiency

Consider a Brayton cycle with two stages of compression with intercooling, two stages ofexpansion with reheating and regeneration. Air enters the first stage compressor at 100kPa and 17 °C. The pressure ratio across each compressor and each turbine is 4.Temperature at the inlet of both the compressor is same. Heat transfer in combustionchamber as well as in reheater is 300 kJ/kg. The regenerator increases the temperature ofcold air by 20 °C. Calculate:a. Temperatures at all the salient points b. Heat added and heat rejected in the cycle c. Thermal efficiency

Air at 100 kPa, 300 K enters an ideal Otto cycle. The initial volume is 500 cm3. The compression ratio is 8.5, and the maximum temperature in the cycle is 2100 K. Using a cold-air standard analysis, determine the following:a. The heat addition (in kJ)b. The heat rejection (in kJ)c. The net work (in kJ)d. The cycle thermal efficiency

A gas-turbine power plant operating on an ideal Brayton cycle has a pressure ratio of(9.6). Air enters the compressor at 100 kPa, 300 K, with a volumetric flow rate of8 m3/s. The turbine inlet temperature is 1430 K.Universal gas constant (R) = 8.314 J K-1 mol-1, molar mass of air (M) = 28.97 g mol-1Neglecting all pressure losses, changes in kinetic energy determine;1. the thermal efficiency of the cycle2. the back work ratio3. the net power developed, in kW.4. Suppose in actual situation, the compressor has isentropic efficiency of 75 percent andthe turbine has isentropic efficiency of 80 percent because of irreversibilities present.Compare and evaluate the actual plant and theoretical efficiencies accounting for anydiscrepancies found.

Consider an ideal Brayton cycle operating on air. The inlet to the compressor is 300 K, 100 kPa. The compressor and turbine pressure ratios are 10. The maximum temperature in the system is 2000 K. Treat the air as an ideal gas with constant specific heats. a. What is the efficiency of this cycle? (Note: see derivation in section 10.1) b. What would the efficiency be for a Carnot cycle operating between the same temperature limits? c. You should have found that the efficiency of this cycle is less than the Carnot efficiency. So, there must be some irreversibility and entropy generation. For each of the four processes (compressor, heat addition, turbine, heat rejection), find the entropy generation per kg of air. For this analysis, assume the best-case scenario – heat is transferred to the high-T heat exchanger from a reservoir at 2000 K and heat is removed from the low-T heat exchanger to a reservoir at 300 K. d. If entropy is generated during this cycle, where does it go? e. What is…

The ideal air-standard Brayton cycle operates with air entering the compressor at 95 kPa, 22°C. The pressure ratio rp is 6:1 and the air leaves the heat addition process at 1100 K. Determine the compressor work and the turbine work per unit mass flow, the cycle efficiency, the back work ratio, and compare the compressor exit temperature to the turbine exit temperature. Assume constant properties.

A gas turbine cycle has a single compression with pressure ratio of 18, and has isentropic efficiency of 80%. The air enters the compressor at 95 kPa, 27°C. The cycle has two stages of expansion, with a reheat between the stages. Air enters the first stage at 1300°C and exits the reheat at 1050°C. The cycle also includes a regenerator with an effectiveness of 76%.Calculate the compressor work,turbine work and the thermal efficiency