Consider a regenerative Brayton cycle operating with a pressure ratio of 8, where the air enters the compressor at 300 K and 100 kPa, while it enters the turbine at 1060 K. Assume that both the compressor and turbine are isentropic, that specific heats vary with temperature, and that the regenerator has an effectiveness of 74%. Round all intermediate calculations to three decimal places. 1. How much net work is produced in kJ/kg? Round your answer to two decimal places. 2. What is the thermal efficiency as a percentage (0% - 100%)? Round your answer to one decimal place. 3. What is the thermal efficiency as a percentage (0% - 100%) if there was no regenerator? Round your answer to one decimal place.

Consider a regenerative Brayton cycle operating with a pressure ratio of 8, where the air enters the compressor at 300 K and 100 kPa, while it enters the turbine at 1060 K. Assume that both the compressor and turbine are isentropic, that specific heats vary with temperature, and that the regenerator has an effectiveness of 74%. Round all intermediate calculations to three decimal places.

1. How much net work is produced in kJ/kg? Round your answer to two decimal places.

2. What is the thermal efficiency as a percentage (0% - 100%)? Round your answer to one decimal place.

3. What is the thermal efficiency as a percentage (0% - 100%) if there was no regenerator? Round your answer to one decimal place.