Sujoy Kumar Saha is a Professor in the Mechanical Engineering Department of the Indian Institute of Engineering Science and Technology, Shibpur Howrah, West Bengal, India. Madhu Sruthi Emani is a doctoral candidate working under the supervision of Dr. Sujoy Kumar Saha, at Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India. She is working in the area of Heat Transfer Enhancement for her PhD thesis. Anand Kumar Bharti is a doctoral candidate working under the supervision of Dr. Sujoy Kumar Saha, at Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India. He is working in the area of Heat Transfer Enhancement for his PhD thesis. Hrishiraj Ranjan is a doctoral candidate working under the supervision of Dr. Sujoy Kumar Saha, at Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India. He is working in the area of Heat Transfer Enhancement for his PhD thesis.

• Chapter 1. Introduction.- Chapter 2. Single Phase Flow Performance Evaluation Criteria.- Chapter 3. Performance Evaluation Criteria based on Laws of Thermodynamics.- Chapter 4. PEC for Two-Phase Flow.- Chapter 5. Conclusions.

Sujoy Kumar Saha is a Professor in the Mechanical Engineering Department of the Indian Institute of Engineering Science and Technology, Shibpur Howrah, West Bengal, India. Madhu Sruthi Emani is a doctoral candidate working under the supervision of Dr. Sujoy Kumar Saha, at Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India. She is working in the area of Heat Transfer Enhancement for her PhD thesis. Anand Kumar Bharti is a doctoral candidate working under the supervision of Dr. Sujoy Kumar Saha, at Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India. He is working in the area of Heat Transfer Enhancement for his PhD thesis. Hrishiraj Ranjan is a doctoral candidate working under the supervision of Dr. Sujoy Kumar Saha, at Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India. He is working in the area of Heat Transfer Enhancement for his PhD thesis.

• Chapter 1. Introduction.- Chapter 2. Single Phase Flow Performance Evaluation Criteria.- Chapter 3. Performance Evaluation Criteria based on Laws of Thermodynamics.- Chapter 4. PEC for Two-Phase Flow.- Chapter 5. Conclusions.

Sujoy Kumar Saha is a Professor in the Mechanical Engineering Department of the Indian Institute of Engineering Science and Technology, Shibpur Howrah, West Bengal, India. Madhu Sruthi Emani is a doctoral candidate working under the supervision of Dr. Sujoy Kumar Saha, at Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India. She is working in the area of Heat Transfer Enhancement for her PhD thesis. Anand Kumar Bharti is a doctoral candidate working under the supervision of Dr. Sujoy Kumar Saha, at Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India. He is working in the area of Heat Transfer Enhancement for his PhD thesis. Hrishiraj Ranjan is a doctoral candidate working under the supervision of Dr. Sujoy Kumar Saha, at Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India. He is working in the area of Heat Transfer Enhancement for his PhD thesis.

• Chapter 1. Introduction.- Chapter 2. Single Phase Flow Performance Evaluation Criteria.- Chapter 3. Performance Evaluation Criteria based on Laws of Thermodynamics.- Chapter 4. PEC for Two-Phase Flow.- Chapter 5. Conclusions.