SPPU Mechanical Engineering (Semester 7)
Energy Audit Management
May 2017
Total marks: --
Total time: --
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary

Solve any one question from Q.1(a,b) &Q.2(a,b)
1(a) Write a short note on:
i) Commercial & non-commercial energy.
ii) Renewable & non-renewable energy
6 M
1(b) Explain preliminary energy audit & its importance.
4 M

2(a) Explain detailed energy audit with its 10 steps.
6 M
2(b) Explain following instruments used in Energy Audit with their application:
i) Combustion analyzer
ii) Infrared pyrometer
4 M

Solve any one question from Q.3(a,b) &Q.4(a,b)
3(a) What is the NPV of an energy conservation project with cash flow given below:
Initial investment Rs. (1,000,000)
Saving in Year Cash Flow
1 Rs.200,000
2 Rs. 200,000
3 Rs. 300,000
4 Rs. 300,000
5 Rs. 350,000

The discount rate k = 10% Is the proposal attractive?
6 M
3(b) Write a short note on Return on Investment.
4 M

4(a) A economizer cost Rs. 200000 and will last for 10 years. It will generate a saving of Rs. 35,000 per year with a maintenance cost of Rs.5000 per year. The discount rate is 10% and salvage value is Rs. 5000 at the end of 10 years. Is the proposal attractive by NPV method?
8 M
4(b) What is the simple payback period?
2 M

Solve any one question from Q.5(a,b) & Q.6(a,b)
5(a) Explain merits and demerits of Direct and Indirect methods used for calculating boiler efficiency.
8 M
5(b) Write down varies energy conservation opportunities in HVAC System and DG set.
8 M

6(a) Explain various losses in industrial furnace system with a neat schematic sketch. Explain the indirect method of performance evaluation of a furnace.
8 M
6(b) What is the importance of Analysis and Recommendation for Energy Audit?
8 M

Solve any one question from Q.7(a,b) &Q.8(a,b)
7(a) Explain electrical billing tariff structure for an industrial consumer.
8 M
7(b) What is power factor? What are the benefits of improving power factor?
8 M

8(a) What is maximum demand in electrical systems? Explain how maximum demand is calculated with the help of a load curve.
8 M
8(b) What are the types s of lamps used in lighting system? Write down their features with typical applications.
8 M

Solve any one question from Q.9(a,b,c) Q.10(a,b,c)
9(a) Describe various factors influnecing selection of co-generation plant.
8 M
9(b) Write short note on:
i) CDM projects
ii) Carbon credits
6 M
9(c) How the Waste heat recovery systems are classified?
4 M

10(a) What is cogeneration? What are the advantages of cogeneration?
8 M
10(b) What are the direct and indirect benefits of Waste Heat Recovery plant?
6 M
10(c) Explain working of convective Recuperator with neat sketch.
4 M

More question papers from Energy Audit Management