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The subject of electrical energy conservation and auditing is crucial for final year students in 2023-24. It covers topics like energy resources, conservation, auditing, and efficiency. The document provides a comprehensive overview, including power factor, energy management, and energy-efficient technologies. This makes it a valuable resource for students preparing for exams, assignments, or essays related to electrical energy conservation and auditing.
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1 Compare Commercial and Non-Commercial Energy. 2 Illustrate Primary Energy Resources and Their Conversion to Secondary Resources. 3 What Is the Role of Commercial and Non-Commercial Energy Sources in Country’s Economy? 4 Explain India’s commercial energy production scenario. 5 Write energy sector reforms in India. 6 Elaborate on energy conservation and why it is important. 7 Write about energy conservation Act-2001 and its feature. 8 What are the causes and impact of energy consumption on air pollution? 9 Explain the challenges and opportunity for Energy Security in India. 10 Explain various forms of energy in details, explain what is high grade and low- grade energy.
1 Define the term power factor, reactive power, active power &load factor 2 Define the term tariff used in electricity bill? Write a short note on contract demand and maximum demand. 3 What is the role of capacitors in electrical energy transmission? Comment on selection and location of capacitors. 4 Define the terms a) Heat capacity b) Sensible heat c) Latent heat d) Temperature and pressure 5 Define following terms a) Evaporation b) Condensation c) Moist air d) humidity
1 What are the major steps involved in an electrical energy audit? Explain with a suitable example. 2 Define energy management and write down its various objectives. 3 Write down the various names of instruments required for performing an energy audit and explain how they work.? 4 Draw and explain the material and energy balance diagram. 5 Write details about the facility as an energy system with the help of a neat diagram. 6 What is benchmarking and what are the parameters for it? What are the permits required for benchmarking and energy performance?
7 What do you understand by the term fuel substitution? Give examples.
1 Write methods to improve the power factor and its benefits. 2 What are the factors affecting induction motor performance? 3 What are the cost benefits of PF improvement? Write advantages of PF improvement. 4 Write a performance assessment of power factor capacitors. 5 A process plant consumes of 12500 kWh per month at 0.9 Power Factor (PF). What is the percentage reduction in distribution losses per month if PF is improved up to 0.96 at load end? 6 A 3-phase, 415 V, 100 kW induction motor is drawing 50 kW at a 0.75 PF Calculate the capacitor rating requirements at motor terminals for improving PF to 0.95. Also calculate the reduction in current drawn and kVA reduction, from the point of installation back to the generated side due to the improved PF. 7 Write system distribution losses and also write various optimisation options available.
1 What are the types of air compressors, and comment on compressor efficiency? 2 Write pumping system and pump types. Also write factors affecting pump performance. 3 How to achieve energy efficiency in pumping system. 4 Write fans and blowers types. Also write performance evaluation.
1 Explain the working of a soft starter and its advantage over other conventional starters. 2 What are the advantages of energy efficient motors? What are the precautions to be taken in the case of energy efficient motor application? 3 Illustrate energy efficient technologies in electrical systems in detail. 4 Write details about the Automatic Power Factor Controllers.