Important RGPV Question
EX-703 (B) Energy Audit & Management
VII Sem, EX
UNIT-I
Q.1 What is environmental aspects of energy utilization in renewable and non-renewable energy sources? Explain the elements of systematic environmental assessment. (RGPV DEC 2024)
Q.2 Define energy management. Distinguish between ‘preliminary energy audit’ and ‘detailed energy audit’. (RGPV DEC 2024)
Q.3 Define energy audit. Also discuss about the various duties and responsibilities of energy auditor. (RGPV DEC 2024)
Q.4 Describe the role of energy managers. (RGPV NOV 2022)
Q.5 List the various equipment required for energy audit and explain the working principle of any one from them. (RGPV NOV 2022)
Q.6 Explain the general principles of energy management. (RGPV NOV 2022)
Q.7 Write the barriers in energy auditing and how it can be eliminated? (RGPV NOV 2022)
Q.8 Distinguish between ‘preliminary energy audit’ and ‘detailed energy audit’. (RGPV NOV 2022)
UNIT-II
Q.1 Explain in detail the best location for capacitors banks for power factor improvement from energy conservation point of view. (RGPV DEC 2024)
Q.2 What is the difference between HT and LT Line? Describe the advantages and disadvantages of low power factor, as well as the reasons for it. (RGPV DEC 2024)
Q.3 What are effects of harmonics? Explain harmonic distortion evaluation procedure? (RGPV DEC 2024)
Q.4 Explain the use of capacitor for power factor improvement. (RGPV NOV 2022)
Q.5 Describe the bad effect of harmonics on electrical equipment. (RGPV NOV 2022)
Q.6 Explain the scope of energy conservation in lighting system. (RGPV NOV 2022)
Q.7 Describe the features of energy efficient motors. (RGPV NOV 2022)
Q.8 Explain the procedure to save the energy of a lighting system. (RGPV NOV 2022)
UNIT-III
Q.1 The efficiency of a boiler on GCV basis is 90%. The fuel contains 1.5% moisture and 15% hydrogen. The GCV of fuel is 11,500 Kcal/kg. What is the boiler efficiency on the basis of net calorific value? (RGPV DEC 2024)
Q.2 Explain why low pressure steam is more efficient? What are the advantages of using minimum excess air for combustion for a furnace application? How it can be achieved? (RGPV DEC 2024)
Q.3 What do you mean by “Economic thickness of insulation”? Also explain the process of condensate recovery and flash steam utilization. (RGPV DEC 2024)
Q.4 Explain the direct and indirect methods for calculating efficiency of a boiler. (RGPV NOV 2022)
Q.5 Describe the role of furnaces in steel industries with the help of neat diagram. (RGPV NOV 2022)
Q.6 Explain flash steam utilization using suitable example. (RGPV NOV 2022)
UNIT-IV
Q.1 What is the fan design and selection criteria? Also explain the fan performance evaluation and efficient system operation. (RGPV DEC 2024)
Q.2 What is the factors affecting pump performance? Also explain the energy conservation opportunities in pumping systems. (RGPV DEC 2024)
UNIT-V
Q.1 What is basic concept of ESCO? Also explain the payback period and its merits and demerits. (RGPV DEC 2024)
Q.2 What are advantages of NPV method over Simple Payback Period method? Calculate Net Present Value (NPV) for an investment towards a LED Lamp having life of 2 years. The discount rate is 15% per year. The cost of lamp is Rs. 2000. Due to investment, annual savings in first year and second year is Rs. 22000 cash. (RGPV DEC 2024)
Q.3 Explain payback and return on investment with suitable example. (RGPV NOV 2022)
EXTRA QUESTIONS
Q.1 What are the benefits of Power Factor (PF) improvement?
During June-2023, the plant has recorded a maximum demand of 700 kVA and average PF is observed to be 0.85 lag, the minimum average PF to be maintained is 0.90 lag as per the independent utility supplier and every one % dip in PF attracts a penalty of Rs 15,000/in each month. Calculate new kVA and the improvement in PF for July-2023 by installing 100 kVAr capacitors. (RGPV DEC 2024)
Q.2 Write short notes on: (any Two) (RGPV DEC 2024)
a) Various types of instruments and monitoring systems used for energy auditing.
b) Concept of furnace and its classifications.
c) Various losses in a transformer and how to minimized
d) Discount period and net present value.
Q.3 Write a short note on any two: (RGPV NOV 2022)
a) ESCO concept
b) Life cycle costing
c) Illumination Lux
— Best of Luck for Exam —
