Air enters the compressor of a regenerative gas turbine engine at 310 K and 100 kPa, where it is compressed to 900 kPa and 650 K. The regenerator has an effectiveness of 78 percent, and the air enters the turbine at 1400 K. Assume variable specific heats for air. Problem 09.114.b - Thermal Efficiency of a Gas-Turbine Engine Using Variable Heat Capacities For a turbine efficiency of 90 percent, determine the thermal efficiency. The thermal efficiency is [ %.

Air enters the compressor of a regenerative gas turbine engine at 310 K and 100 kPa, where it is compressed to 900 kPa and 650 K. The regenerator has an effectiveness of 78 percent, and the air enters the turbine at 1400 K. Assume variable specific heats for air. Problem 09.114.b - Thermal Efficiency of a Gas-Turbine Engine Using Variable Heat Capacities For a turbine efficiency of 90 percent, determine the thermal efficiency. The thermal efficiency is [ %.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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### Required Information

**Problem 09.114 - Regenerative Brayton Cycle with Effectiveness using Variable Specific Heats - DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS**

Air enters the compressor of a regenerative gas turbine engine at 310 K and 100 kPa, where it is compressed to 900 kPa and 650 K. The regenerator has an effectiveness of 78 percent, and the air enters the turbine at 1400 K. Assume variable specific heats for air.

---

**Problem 09.114.b - Thermal Efficiency of a Gas-Turbine Engine Using Variable Heat Capacities**

For a turbine efficiency of 90 percent, determine the thermal efficiency.

The thermal efficiency is ________%.

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