Energy Audit & Management (EX-703 (B)) - Important Questions

Describe the different types of energy audits and their significance for energy conservation.

Describe the role and responsibilities of energy managers in promoting energy efficiency in an organization.

Distinguish between preliminary energy audit and detailed energy audit.

Explain the environmental aspects associated with energy consumption / utilization, including renewable (and non-renewable) energy sources.

Write short notes on BEE audit intervals, steam distribution, LED lighting, and internal rate of return.

What is energy auditing and why is it needed in industry?

Explain the managerial functions involved in energy management and the steps for energy auditing and energy management in an institutional organization.

Explain the environmental aspects of energy utilization in renewable and non-renewable sources and explain the elements of systematic environmental assessment.

Define energy audit and discuss the duties and responsibilities of an energy auditor.

List the instruments/equipment required for energy audit and explain the working principle of an instrument

Explain the general principles of energy management.

What are the barriers in energy auditing and how can they be eliminated?

Explain the adverse effects / problems of harmonics on electrical equipment and system.

Given maximum kVA demand and average lagging power factor, calculate improved power factor and new kVA after installing a given kVAr capacitor bank, and any PF penalty.

Differences in construction/features between energy efficient motors and standard motors, advantages, and why efficiency is higher

What are the main components of electricity (EB) billing and how do demand and energy charges influence electricity cost?

Define Lux and Lumen, describe different types of lighting and explain the role of LED lighting in energy conservation.

Calculate the parallel capacitance required to raise the power factor of a single-phase motor load from one lagging value to another.

Numerical calculation of motor percentage loading from input voltage, current, power factor and rated output/efficiency

Explain the best location for capacitor banks for power factor improvement from energy conservation point of view.

What is the difference between HT and LT lines, and what are the causes, advantages and disadvantages of low power factor?

Explain the scope, necessity and procedure for energy conservation and replacement of existing lighting systems.

Explain the use of capacitors for power factor improvement.

Explain condensate recovery and flash steam utilization in thermal systems, including importance and example.

Explain the working of boilers, furnaces and thermic fluid heaters and how their efficiency is computed.

Describe the components and operation of a steam distribution system and how steam losses can be minimized.

Explain the working of a thermic fluid heating system and why it is preferred over steam heating in some cases.

Determine optimal loading of multiple boilers for a given steam demand and estimate fuel savings.

Describe the working of steam traps and methods for performance assessment.

Convert boiler efficiency between GCV basis and NCV (net calorific value) basis given fuel moisture, hydrogen and GCV.

Explain why low pressure steam is more efficient and the advantages and methods of using minimum excess air for furnace combustion.

What do you mean by "Economic thickness of insulation"? Also explain the process of condensate recovery and flash steam utilization.

Explain the direct and indirect methods for calculating boiler efficiency.

Describe the role of furnaces in steel industries with a neat diagram.

Explain factors affecting pump performance and energy conservation measures / opportunities in pumping systems, including proper selection and operation for efficiency.

Describe methods to improve energy efficiency in compressed air systems. Mention common losses and their remedies.

Explain significance of parallel operation of centrifugal pumps and factors affecting performance and energy efficiency of refrigeration plants.

What are cooling towers? Discuss their energy-saving measures and efficiency improvement techniques.

Explain fan design and selection criteria, fan performance evaluation, and efficient system operation.

What is the (simple) payback period, how is it calculated, and why is it important / how is risk considered in energy investment decisions?

What is Life Cycle Costing? Explain its process, applications and effects.

What is Net Present Value and what is its role in assessing the profitability of energy projects?

Numerical calculation of energy savings, cost savings and simple payback period for lamp replacement investment.

What is the basic concept of ESCO? Explain payback period with its merits and demerits.

What are the advantages of NPV method over Simple Payback Period method and calculate NPV for a 2-year LED lamp investment?

Write short notes on any two: ESCO concept, Life cycle costing, Illumination Lux.

Explain payback period and return on investment with a suitable example.

Write short notes on: (Any two) :

Write short notes on: (any Two)