JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objectives:

• To know the necessity of conservation of energy
• To generalize the methods of energy management
• To illustrate the factors to increase the efficiency of electrical equipment
• To detect the benefits of carrying out energy audits.

Course Outcomes

Upon the completion of this course, the student will be able to

• Tell energy audit of industries
• Predict management of energy systems
• Sequence the methods of improving efficiency of electric motor
• Analyze the power factor and to design a good illumination system
• Determine pay back periods for energy saving equipment

UNIT - I

Basic Principles of Energy Audit: Energy audit- definitions, concept , types of audit, energy index, cost index ,pie charts, Sankey diagrams, load profiles, Energy conservation schemes- Energy audit of industries- energy saving potential, energy audit of process industry, thermal power station, building energy audit.

UNIT - II

Energy Management: Principles of energy management, organizing energy management program, initiating, planning, controlling, promoting, monitoring, reporting- Energy manger, Qualities, and functions, language, Questionnaire – check list for top management.

UNIT - III

Energy Efficient Motors: Energy efficient motors, factors affecting efficiency, loss distribution, constructional details , characteristics - variable speed , variable duty cycle systems, RMS hp- voltage variation-voltage unbalance- over motoring- motor energy audit

UNIT - IV

Power Factor Improvement, Lighting and Energy Instruments: Power factor – methods of improvement, location of capacitors, pf with non linear loads, effect of harmonics on power factor, power factor motor controllers - Good lighting system design and practice, lighting control, lighting energy audit - Energy Instruments- wattmeter, data loggers, thermocouples, pyrometers, lux meters, tongue testers ,application of PLC’s.

UNIT - V

Economic Aspects and Analysis: Economics Analysis-Depreciation Methods, time value of money, rate of return , present worth method , replacement analysis, life cycle costing analysis- Energy efficient motors- calculation of simple payback method, net present worth method- Power factor correction, lighting - Applications of life cycle costing analysis, return on investment .

TEXT BOOKS:

• 1. Energy management by W.R. Murphy AND G. Mckay Butter worth, Heinemann publications.
• 2. Energy management by Paul o’ Callaghan, Mc-graw Hill Book company-1st edition, 1998

REFERENCES:

• 1. Energy efficient electric motors by John .C. Andreas, Marcel Dekker Inc Ltd-2nd edition, 1995
• 2. Energy management hand book by W. C. Turner, John wiley and sons
• 3. Energy management and good lighting practice : fuel efficiency- booklet 12- EEO M. TECH – I YEAR – II SEM. (EPE/EPS/ PSC&A)