This course is focused on the learning of Recovery of thermal energy that are reusable for different other aspects like pre heating, electricity generation etc.This course consist a total 6 lecture that provides learning exposer of Waste Heat Recovery and their different aspectsLecture 1: This lecture is about Introduction of WHR that includes examples of WHR, selection parameters of WHR etc.Lecture 2: This lecture is about Recuperator & it's types. It is a type heat exchanger to transfer thermals to where heat is needed.Lecture 3: This lecture is about Heat Wheel & it's types as well as it's basic working principle. It is used to transfer heat to a useful purpose.Lecture 4: This lecture is about heat pipe that transfers heat from one end to another. The lecture covers it's basic parameters as well as it's potential use.Lecture 5: This lecture is about regenerative burner and economizer. The lecture describes it's basic working principle as well as different parameters.Lecture 6: This lecture is about Plate heat exchanger & Heat Pump. The working principle are of both the device are mentioned. The lecture conclude the Course by providing The short summary of all WHR technologies with their benefits & Limitations.Benefits of the course1. Potential of waste heat recovery 2. Introduction to WHR3. Selection of WHR4. Quantifying waste heat5. Different types of Waste heat recovery methodsRecuperatorRotary Wheel (Heat Wheel)Heat Pipe Heat ExchangerWaste heat BoilerThermoelectric GeneratorHeat Recovery Steam Generator (HRSG)Regenerative & Recuperative burnersEconomizerDirect & Indirect contact condensation recovery6. Hurdles in the Waste Heat Recovery Process