JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Prerequisites

Environment Studies, Elements of Mechanical Engineering, Thermodynamics

Course Objectives:

• 1. To understand the principles of energy conservation
• 2. To understand thermal insulation & refractors.
• 3. To know waste heat recovery systems.
• 4. To gain knowledge about engineering economics.
• 5. To impart knowledge Energy management programs.

Course Outcomes:

• 1. Explain the basic concept of energy conservation and its role in energy management.
• 2. Focus on thermal Insulation & refractors, classification and applications
• 3. Discuss the energy conservation opportunities in the energy intensive industries by waste heat recovery system
• 4. Analyze the quantum of electrical energy that can be saved by the use of energy efficient lighting systems and energy audit parameters
• 5. Understand concept of Project management and energy management Programs

UNIT - I

Energy Conservation: Rules for efficient energy conservation – technologies for energy conservation – outline of waste heat and material reclamation, load management, alternate energy sources, and energy storage.

UNIT - II

Thermal Insulation: Heat loss through un-insulated surfaces, effects of insulation on current carrying wires – economic thickness of insulation – critical radius of insulation –properties of thermal insulators – classification of insulation materials – classification of refractors –properties of refractors – criteria for good refractory material – applications of insulating & refractory materials.

UNIT - III

Waste Heat Recovery Systems: Guideline to identify waste heat – feasibility study of waste heat – shell and tube heat exchanger – thermal wheel – heat pipe heat exchanger – heat pump – waste heat boilers – incinerators. HEAT RECOVERY SYSTEMS & HEAT EXCHANGER NETWORKS: Liquid to liquid heat exchangers – gas to liquid heat recovery systems, regenerators, recuperators, rotating regenerators – miscellaneous heat recovery methods – selection of materials for heat exchangers – combined radiation and convective heat exchanger, U tube heat exchanger, tube heat exchanger, fluidized bed heat exchanger – economizer.

UNIT - IV

Engineering Economics: Managerial objectives, steps in planning – efficiency of organization- capital budgeting – classification of costs – interest – types – nominal and effective

interest rates – discrete and continuous compounding – discounting - time value of money – cash flow diagrams – present worth factor, capital recovery factor, equal annual payments – equivalent between cash flows. ENERGY AUDITING: A definition – objectives – level of responsibility – control of energy – uses of energy – check lists – energy conservation schemes – energy index – cost index – pie charts – sankey diagrams – load profiles – types of energy audits – questionnaire – energy audit of industries – general energy audit – detailed energy audit – energy saving potential.

UNIT - V

Project Management: Method of investment appraisal – rate of return method, pay back method, net present value method (NPV) – adoption of the methods in energy conservation campaign – types of projects –– propose of project management – classification – role and qualities of project manager – types of budgets - budget committee – budgeting. ENERGY MANAGEMENT PROGRAMS: Necessary steps of energy management programme – concepts of energy management – general principles of energy management – energy management in manufacturing and process industries – qualities and functions of energy managers – duties of energy manager - language of energy manager – checklist for top management.

TEXT BOOKS:

• 1. Waste heat recovery systems -D.A. Reay/Pergmon Press
• 2. Energy Management -W.R. Murphy & G.Mickay, Butterworths

REFERENCE BOOKS:

• 1. Energy Conservation -P.W.O’ Callaghan, Pargamon Press 1981
• 2. Engineering Heat Audits -C.P. Gupta & Rajendra Prakash, Nechand & Bros.
• 3. Hand book of energy audits -Albert Thumann, The F.Airmont Press Inc., Atlanta Georgia, 1979.
• 4. Energy Management Principles -Craig B. Smithm, Pergarmon Press M.Tech, I Year, II Sem