State various types of energy losses with their control measures in any utility.

1 Answer

Answer :

Energy loss and control in any utility

Energy saving opportunities in cooling tower (These measures will save electrical energy used in fan or pumps)

1. Follow manufacturer’s recommended clearances around cooling towers and relocate or modify structures that interfere with the air intake or exhaust 2. Optimize cooling tower fan blade angle on a seasonal and/or load basis 3. Correct excessive and/or uneven fan blade tip clearance and poor fan balance 4. In old counter-flow cooling towers, replace old spray type nozzles with new square spray nozzles that do not clog 5. Replace splash bars with self-extinguishing PVC cellular film fill 6. Install nozzles that spray in a more uniform water pattern 7. Clean plugged cooling tower distribution nozzles regularly 8. Balance flow to cooling tower hot water basins 9. Cover hot water basins to minimize algae growth that contributes to fouling 10. Optimize the blow down flow rate, taking into account the cycles of concentration (COC) limit 11. Replace slat type drift eliminators with low-pressure drop, self-extinguishing PVC cellular units 12. Restrict flows through large loads to design values

OR

Energy saving in boiler ((These measures will save electrical energy used in fan or pumps)

1. Reducing excess air

2. Installing economizer

3. Reducing scale and deposits

4. Reducing blow down

5. Recovering waste heat from blow down

6. Stopping dynamic operation 

7. Reducing boiler pressure

8. Operating at peak efficiency

9. Preheating combustion air

10. Switching from steam to air atomization

Switching to lower cost fuel

Related questions

Description : List various types of costs. 

Last Answer : Types of Cost Total Cost Fixed Cost Variable cost Direct cost Indirect Cost

Description : State two objectives of energy audit.

Last Answer : Objective of energy audit  To determine ways to reduce energy consumption per unit of product output or to lower operating costs. Energy Audit provides a bench-mark" (Reference ... effective use of energy throughout the organization. Provide detailed documentation for monitoring of energy use

Description : State the use of Lux Meter and Tachometer in energy audit.

Last Answer : Use of lux meter – to measure intensity of light Use of tachometer – to measure speed

Description : State any two units of energy.

Last Answer : Units of energy: Joule Calorie Kilowatt Kilowatt-hour Watt

Description : Explain the procedure of detailed energy audit.

Last Answer : Detailed Energy Audit Detailed audit provides a detailed project implementation plan for a facility, since it evaluate all major energy using systems. This type of audit offers the ... Management aspects of design and operating data collection, field measurements, data analysis, and training

Description : Outline any four duties and responsibilities of energy manager.

Last Answer : Responsibilities and Duties of Energy Manager Responsibilities Prepare an annual activity plan and present to management concerning financially attractive investments to reduce energy costs Establish an ... and manner as may be provided in the regulations of the Energy Conservation Act.

Description : Illustrate the benefits of hydrogen energy as a future energy.

Last Answer : Benefits of Hydrogen Energy The use of hydrogen greatly reduces pollution. When hydrogen is combined with oxygen in a fuel cell, energy in the form of electricity is produced. This electricity can ... sources of fuel. This ideally means that you need less hydrogen to complete an enormous task.

Description : Explain energy conservation and its importance.

Last Answer : Energy conservation Energy Conservation is the deliberate practice or an attempt to save electricity, fuel oil or gas or any other combustible material, to be able to put to additional use for ... are produced. e) Generally to relieve shortage and improve development. f) Advantage in PAT scheme.

Description : Classify energy sources with two examples each.

Last Answer : Types of energy Source  Primary energy source is an energy form found in nature that has not been subjected to any conversion or transformation process. The primary energy sources are derived from: the sun, ... energy sources: These sources can renew again and again. e.g Solar, Wind, Biomass, Hydro

Description : List four environmental benefits of wind energy.

Last Answer : Environmental benefits of Wind Energy 1. Renewable & Sustainable 2. Environmentally Friendly 3. Reduces Fossil Fuel Consumption 4. Small Footprint

Description : Outline the process of accounting.

Last Answer : Process of accounting An accounting system tracks and controls the income and expenses of a business. Accounting systems can be as simple as a pen and notepad, and can be as complex ... find themselves required to create reports for external stakeholders, such as lenders and private investors. 

Description : Explain law of demand and law of supply.

Last Answer : The Law of Demand The law of demand states that, if all other factors remain equal, the higher the price of a good, the less people will demand that good. In other words, the higher the price, the lower ... ). At point B, the quantity supplied will be Q2 and the price will be P2, and so on.

Description : Describe the concept of fixed cost, variable cost and total cost.

Last Answer : Total cost  Total cost refers to total expense incurred in reaching a particular level of output, if such total cost is divided by quantity produced average or unit cost is obtained. The ... . Direct material, direct labour, direct expenses, variable overheads are some examples of variable cost.

Description : List the advantages and disadvantages of hydropower. 

Last Answer : Hydropower plant Advantages Renewable - Hydroelectric energy is renewable. This means that we cannot use up. However, there's only a limited number of suitable reservoirs where hydroelectric power ... MW under construction. Only one of these projects was started in the last two years. 

Description : Explain any four important properties of petroleum fuel.

Last Answer : Properties of petroleum fuel The flash point of a volatile fuel is the lowest temperature at which it can vaporize to form an ignitable mixture in air. The flash point is an important concept in ... of combustion contain the water vapor and that the heat in the water vapor is not recovered.

Description : Explain construction and working of solar water heater.

Last Answer : Solar Water Heater  Construction A typical domestic solar water heater consists of a hot water storage tank and one or more flat plate collectors. Inlet and outlet pipes are connected ... the tank continues automatically due to density difference between hot and cold water (thermosyphon effect).

Description : Define calorific value. Differentiate between net calorific value and gross calorific value.

Last Answer : Calorific value of fuel  The amount of energy produced by the complete combustion of a material or fuel.  Measured in units of energy per amount of material, e.g. kJ/kg. Difference between NCV and GCV ... is not an actual heat available for use. It is an actual heat available for use.

Description : Describe profitability evaluation by rate of return on investment. 

Last Answer : Profitability by ROI Return on investment, or ROI, is the most common profitability ratio. There are several ways to determine ROI, but the most frequently used method is to divide net profit by total ... investment types. Return on investment = (revenue − cost of goods sold) / cost of goods sold

Description : Explain construction of biogas plant.

Last Answer : Fixed Roof Biogas Plant  Construction It consits of inlet tank, digester and outlet tank. Sluury is prepeared in inlet tank. Mass is digeated in digester. Gas is collected at the top dome. Digested mass ... digester gas can supply useful energy in the form of hot air, hot water or steam.

Description : List the two factors affecting on cost estimation.

Last Answer : Factors affecting cost estimation 1) Labor Wage Rates 2) Inflation Factor 3) Project Schedule 4) Quality of Plans & Specifications 5) Reputation of Engineer 6) Regulatory Requirements 7) Insurance Requirements 8) Size and Type of Project 9) Location 10) Contingency

Description : Define balance sheet.

Last Answer : Balance sheet  It is a statement of the assets, liabilities, and capital of a business or other organization at a particular point in time, detailing the balance of income and expenditure over the preceding period.

Description : State the difference between energy conservation and energy audit. 

Last Answer : energy conservation Energy audit It is reducing the growth of energy consumption by avoiding unnecessary usage of energy It is an inspection, survey & analysis of energy flows ... Various measuring instruments, with proper sensing elements are required for the energy audit. 

Description : Problems on electrical power and energy

Last Answer : Problem on electrical power and energy 1 : https://youtu.be/ZvWHuMdmv9g Problem on electrical power and energy 2 : https://youtu.be/19IZMc6U2vs Problem on electrical power and energy 3 : https ... : https://youtu.be/iYqGIwA919A Problem on electrical power and energy : https://youtu.be/iWnWQz_mzHk

Description : Problem on electrical power and energy 2

Last Answer : Problem on electrical power and energy 2

Description : Problem on electrical power and energy 1

Last Answer : Problem on electrical power and energy 1

Description : Problem on electrical power and energy 7

Last Answer : Problem on electrical power and energy 7

Description : Problem on electrical power and energy 6

Last Answer : Problem on electrical power and energy 6

Description : Problem on electrical power and energy 5

Last Answer : Problem on electrical power and energy 5

Description : In time-cost optimization of a project, crashing is done. (A) On all the activities (B) On all the activities lying on the critical path (C) Only on activities lying on the ... critical activities and those that become critical at any stage of crashing in the order of ascending cost slope

Last Answer : D

Description : State the various lighting calculations methods and Describe any one of them.

Last Answer : Lighting calculation methods: 1. Lumens or Light flux method 2. Point to point or Inverse Square law method 3. Watts per Square meter method i) Lumens or Light ... is taken according to the illumination desired on an average value considering overall efficiency of the lighting system.

Description : Explain the “mitigation of power theft” and “faulty meter replacement” for energy conservation techniques to reduce commercial losses. 

Last Answer : Energy conservation techniques to reduce commercial losses:  1. Mitigation of Power Theft: Power theft being the most important issue which all of the service providing utilities ... agricultural sector. Prepaid meters may prove effective measures against unauthorized abstraction of energy. 

Description : Explain following techniques related to energy conservation in transmission and distribution system. (i) By balancing phase currents (ii) Variable technical losses (I2R losses).

Last Answer : (i) Balancing Phase currents: Proper (healthy balanced) three phase loads always draw equal currents in all lines but single phase loads in the 3 phase 4 wire system or loads connected between two ... . 11) Minimize I2R losses. 12) Balance the load currents. 13) Regulate the system voltages.

Description : Enlist the luminaries used in factory lighting and lux level required in various areas.

Last Answer : Area Luminaries Lux level Office building Fluorescent tube, LED, CFL 500 lux Testing centre Fluorescent tube, LED, CFL 400 to 500 lux Workshop/work place Halogen ... , LED, CFL, Projector lamp, filament lamp, Halogen Lamp, Metal Halide lamp etc Above 600 Lux

Description : Classify boilers according to various factors. 

Last Answer : Classifications of boilers 1.Use a. stationary b. mobile 2. Tube contents a. fire tube boiler b. water tube boiler 3. Tube shape and position a. Tube shape (Form) -i. Straight ii. ... . forced circulation 6. Heat source a. Fuel b. hot wastergaes c. electrical energy d. nuclear energy 

Description : Which of the following is not a greenhouse gas ? a) CFCs b) SO2 c) PFC d) SF6

Last Answer : b) SO2

Description :  Answer the following S. No Statement Chose the correct  answer OR Fill-in-the-blanks 1 Fyrite measures CO2, O2 and SO2 True/False 2 Ultrasonic Flow Meter uses the principle of____& ____ Fill in the ... of RPM  meter is used and for a visible shaft-end _______ type of  RPM meter is used.

Last Answer : Sr  No Statement Chose the correct  answer OR Fill-in-the-blanks Solution 1 Fyrite measures CO2, O2 and  SO2 True/False False 2 Ultrasonic Flow Meter uses the  principle of____& ____ ... ]  10 In a gasification system the  reduction zone is above the  combustion zone True/False False

Description : Which of the following is not a part of energy audit as per the Energy Conservation Act, 2001? a) monitoring and analysis of energy use b) verification of energy use c) submission of technical report with recommendations d) ensuring implementation of recommended measures followed by review

Last Answer : d) ensuring implementation of recommended measures followed by review

Description : An electric heater draws 5 kW of power for continuous hot water generation in an industry. How much quantity of water in litres per min can be heated from 30oC to 85oC ignoring losses?. a) 1.3 b) 78.18 c) 275 d) none of the above

Last Answer : a) 1.3

Description : State the different types of outdoor flood lighting and where are they used.

Last Answer : There are three types of projectors used for flood lighting :  a) Narrow beam Projector b) Medium angle Projector c) Wide angle Projector a) Narrow beam Projectors: - Light beam with such ... yards, stadiums, car parking area etc. 3) It is used for illuminating advertisements, boarding's etc.

Description : State different types of electrical signal and draw all types of waveforms.

Last Answer : Types of electrical signals 1) Sine wave 2) Triangular wave 3) Square wave Waveforms

Description : State the different types of engines in diesel power plant.

Last Answer : Types of engines in diesel power plant: 1) Two Stroke Diesel Engine 2) Four Stroke Diesel Engine

Description : Write function of control rods in nuclear power plant.

Last Answer : Function of control rods in nuclear power plant: The function of control rod is to control the chain reaction in reactor core by adjusting its height.

Description : Types of rolling mills and its applications

Last Answer : Types of rolling mills and its applications (1) Two-high rolling mill: used in blooming and slabbing mills (2) Three-high rolling mill: used for making plates or sections. (3) Four- ... : This mill is used for rolling stainless steel and other high strength steel sheets of thin gauge.

Description : List out types of thermic fluid.

Last Answer : Different thermic fluids 1. Dowtherm A 2. Dowtherm E 3. Therminol FR 4. Oil mobiltherm 600 5. Oil Mobiltherm light 6. Hydrotherm 750-200

Description : List the types of turbine used in hydro power plant.  

Last Answer : Following types of turbine used in hydro power plant:  1.Pelton wheel 2.Francis Turbine 3.Kaplan Turbine 4.Propeller Turbine 

Description : State elements of diesel electric power plant with their functions. 

Last Answer : Elements of Diesel Power Plant with their function):   1) Diesel Engine: - This is the main component of the P.P. which develops mechanical power. 2) Engine air intake system: - Air ... fuel as per requirement. 10) Alternator: - Its function is to convert mechanical power into electrical power.

Description : Define memory segmentation. How memory segmentation is achieved in 8086? State advantages of memory segmentation.

Last Answer : Memory Segmentation: The memory in an 8086 microprocessor is organized as a segmented memory. The physical memory is divided into 4 segments namely, - Data segment, Code Segment, Stack Segment and Extra ... 16 bit size. 6) Programs and data can be stored separately from each other in segmentation.

Description : State the use of OF and DF flags of 8086 microprocessor.

Last Answer : Overflow Flag: This flag is set if an overflow occurs, i.e. if the result of a signed operation is large enough to be accommodated in destination register. Direction Flag: It selects either increment or decrement mode for DI &/or SI register during string instructions.

Description : State the functions of following pins of 8085 1) SOD 2) HLDA

Last Answer : 1) SOD: Serial Output data SOD pin is used to transmit data serially from accumulator to the external devices connected to the pin.  2) HLDA: Microprocessor generates HLDA signal to acknowledge requesting device after HOLD signal.

Description : State the functions of temporary registers of 8085 microprocessor.

Last Answer : Temp Register (8 bits) is also called as operand register as it is used by μp for storing one of the operands during an operation and also for storing the result of any execution temproary.