Energy Classifications Quiz
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Questions and Answers

What is the definition of energy as provided in the content?

  • The capacity to generate motion
  • The ability to perform chemical reactions
  • The ability to produce heat
  • The ability to do work (correct)

    • Which of the following is classified as mechanical energy?

  • Movement of electrons
  • Energy stored in chemical bonds
  • Light from the sun
  • Energy due to an object's motion or position (correct)

    • Which energy form is derived from electromagnetic radiation?

  • Electrical energy
  • Mechanical energy
  • Thermal energy
  • Electromagnetic energy (correct)

    • What is an example of secondary energy?

    <p>Electricity</p> Signup and view all the answers

    In terms of energy classifications, what characterizes primary energy?

    <p>It exists in natural resources before transformation.</p> Signup and view all the answers

    Which type of energy includes the motion of atoms or molecules within matter?

    <p>Thermal energy</p> Signup and view all the answers

    What type of energy is caused by the movement of electrons?

    <p>Electrical energy</p> Signup and view all the answers

    Which of the following is NOT an example of electromagnetic energy?

    <p>Electric energy</p> Signup and view all the answers

    What is a characteristic of renewable energy?

    <p>It comes from sources that are naturally replenished.</p> Signup and view all the answers

    Which of the following is NOT a common power source for textile and garments factories in Bangladesh?

    <p>Wind Energy</p> Signup and view all the answers

    What aspect does performance efficiency NOT consider?

    <p>Human coordination</p> Signup and view all the answers

    Which type of efficiency involves analyzing individual pieces of equipment against design specifications?

    <p>Equipment efficiency</p> Signup and view all the answers

    What is the primary goal of energy management?

    <p>To optimize energy usage.</p> Signup and view all the answers

    Which of the following energy sources is considered nonrenewable?

    <p>Coal</p> Signup and view all the answers

    Which statement best describes technology efficiency?

    <p>It measures effective energy conversion limited by natural laws.</p> Signup and view all the answers

    In energy efficiency, what does operation efficiency evaluate?

    <p>Coordination of various system components.</p> Signup and view all the answers

    Which indicator is not used to evaluate energy efficiency?

    <p>Customer satisfaction</p> Signup and view all the answers

    What does an ad hoc approach to energy management imply?

    <p>A flexible, irregular method without fixed strategies</p> Signup and view all the answers

    Which statement best describes energy management?

    <p>The use of engineering and economic principles to control energy costs</p> Signup and view all the answers

    What is a critical aspect of maintaining an effective energy management program?

    <p>Integrating it as a fundamental company policy</p> Signup and view all the answers

    What is one of the objectives of energy management?

    <p>Minimize energy costs without affecting production and quality</p> Signup and view all the answers

    Which of the following approaches is characterized by an integrated effort including all stakeholders?

    <p>Structured approach</p> Signup and view all the answers

    How much of the electrical energy consumed by an air compressor is typically released as heat?

    <p>94 percent</p> Signup and view all the answers

    Which benefit directly contributes to reduced greenhouse gas emissions?

    <p>Reducing combustion of methane</p> Signup and view all the answers

    What is a potential impact of improved energy management on factory operations?

    <p>Savings in operational costs</p> Signup and view all the answers

    How does energy management influence health hazards?

    <p>By ensuring better factory environments through lowered energy use</p> Signup and view all the answers

    Which of the following is NOT a benefit of energy management?

    <p>Increasing air pollution</p> Signup and view all the answers

    Which factor is NOT mentioned as part of reduced GHG emissions through energy management?

    <p>Enhanced insulation in buildings</p> Signup and view all the answers

    What economic advantage does energy management provide at a national level?

    <p>Improved industrial competitiveness</p> Signup and view all the answers

    How does reduced energy consumption impact acid rain problems?

    <p>Decreases acid rain by reducing sulfur dioxide emissions</p> Signup and view all the answers

    Which of the following environmental improvements is a result of energy management?

    <p>Less thermal pollution</p> Signup and view all the answers

    What is one method of improving energy efficiency in boiler and compressor systems?

    <p>Keeping the boiler clean and removing steam leaks</p> Signup and view all the answers

    How can monitoring electric motor health contribute to energy savings?

    <p>By reducing energy consumption up to 18%</p> Signup and view all the answers

    Which of the following is a key action in the ISO 50001 energy management process?

    <p>Conducting an energy review</p> Signup and view all the answers

    What approach should be followed for the optimization of HVAC systems?

    <p>Develop a customized system based on analysis</p> Signup and view all the answers

    Which practice is essential for saving energy in lighting systems?

    <p>Implementing an efficient lighting system</p> Signup and view all the answers

    What should be done to ensure effective water management in energy management?

    <p>Identify and optimize water management opportunities</p> Signup and view all the answers

    In the context of energy management, what does the term 'heat cascading' refer to?

    <p>Recovering and utilizing waste heat from processes</p> Signup and view all the answers

    What is an effective way to enhance the operational efficiency of equipment?

    <p>Regularly audit technology and equipment for inefficiencies</p> Signup and view all the answers

    What does an energy management system (EnMS) primarily aim to improve?

    <p>Energy performance and consumption</p> Signup and view all the answers

    Which of the following is NOT mentioned as a benefit of implementing ISO 50001?

    <p>Increased employee engagement</p> Signup and view all the answers

    Why is conducting a feasibility study important in energy management?

    <p>To reduce energy costs and pollution</p> Signup and view all the answers

    Which aspect of energy management is specifically mentioned as being adaptable or implementable?

    <p>Energy management system at corporate or facility level</p> Signup and view all the answers

    Which of the following statements is true regarding ISO 50001?

    <p>It can be aligned with other management systems.</p> Signup and view all the answers

    What analogy is used to describe energy conservation in the context of energy management?

    <p>The 5th fuel source</p> Signup and view all the answers

    Which of the following is NOT a reason for the adaptation of energy conservation measures?

    <p>Increased government regulations</p> Signup and view all the answers

    In relation to energy management systems, what is the primary focus during the checking phase?

    <p>Monitoring energy performance</p> Signup and view all the answers

    Study Notes

    Course Information

    • Course Title: Environmental Management
    • Course Code: ENV 214
    • Lecturer: Haniyum Maria Khan (Hmk1)
    • Senior Lecturer, ESM
    • Lecturer: 15-16
    • Institution: North South University

    Learning Objectives

    • Understand various energy types, forms, and classifications
    • Understand energy management benefits for production sites
    • Gain practical knowledge of energy management techniques
    • Understand how energy management systems enhance production sites
    • Learn how to conduct energy-saving feasibility studies
    • Introduce background of energy and its forms
    • Understand Classifications of Energy

    What is Energy?

    • Scientists define energy as the ability to do work.

    Forms of Energy

    • Mechanical
    • Electromagnetic
    • Electrical
    • Chemical
    • Thermal

    Mechanical Energy

    • Energy due to an object's motion (kinetic) or position (potential)

    Electromagnetic Energy

    • Electromagnetic energy originates from electromagnetic radiation
    • Examples include gamma rays, x-rays, ultraviolet rays, visible light, infrared rays, microwaves, and radio waves

    Electric Energy

    • Energy caused by electron movement

    Chemical Energy

    • Energy available for release from chemical reactions

    Thermal Energy

    • Thermal energy is the energy of motion of atoms or molecules in a quantity of matter

    Energy Classifications

    • Primary energy: Energy inherent in natural resources prior to human transformations. Examples include coal, crude oil, sunlight, wind, rivers, vegetation, and uranium.
    • Secondary energy: More convenient energy forms transformed from primary energy via conversion processes. Examples include electricity (from coal, oil, natural gas, wind, water, nuclear), gasoline, and hydrogen fuels.

    Renewable Energy

    • Obtained from resources naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat.

    Non-renewable Energy

    • Generated from sources that will not be replenished for thousands or millions of years. Fossil fuels are the primary example.

    Energy Used in Textile Factories (Bangladesh)

    • Electricity (machinery, cooling, lighting, etc.)
    • Oil (boilers for steam generation)
    • Fuel Oil
    • Kerosene
    • Liquefied petroleum gas
    • Coal

    Renewable Energy and Conservation

    • Solar Energy
    • Thermal Energy (steam)

    Energy Management: Managing Energy for Optimization

    • Understand the purpose of energy management
    • Learn energy management procedures
    • Optimize energy usage

    Energy Efficiency

    • A measure of useful energy output versus energy input, evaluated across technology, equipment, operation, and performance levels.
    • Performance efficiency: Determined by external indicators (security, production, cost, energy sources, environmental impact, etc.)
    • Operation efficiency: Proper coordination of (physical, time, and human) system components.
    • Equipment efficiency: Measured by output of individual equipment considering technology design specifications.
    • Technology efficiency: Measured by energy conversion, processing, transmission and usage. Affected by natural laws, such as energy conservation.

    Energy Efficiency Indicators

    • Feasibility
    • Life-cycle cost and return on investment
    • Coefficients in converting/processing/transmitting rate

    Energy Management (Definition)

    • The use of engineering and economic principles to control the cost of energy necessary to operate buildings and industrial facilities.
    • Maximizing profits by judiciously using energy while minimizing costs and enhancing competitive positions.

    Goal and Objectives of Energy Management

    • Produce goods and services with the lowest possible costs and minimal environmental impact
    • Achieve optimal energy procurement and utilization, minimizing costs/waste without compromising production and quality. Minimize environmental impact

    Approaches to Energy Management

    • Ad hoc approach - Costs fluctuate, audits infrequent
    • Structured approach - Management commitment to program, savings sustained

    Ad Hoc Approach (Diagram)

    • Costs/investment fluctuate in the short term, with spikes and then dips. Overall increases.

    Ad Hoc Approach

    • Describes an approach without a structured plan to manage energy. Costs related to energy are unpredictable.

    Structured Approach

    • Shows investment in savings upfront but stable and predictable long-term savings as production continues.

    Structured Approach (Description)

    • Describes a structured, comprehensive, and integrated approach for organizations to address energy management.

    Typical Areas for Savings (Energy Management)

    • Lighting systems: Improved efficiency reduces electricity costs and generating plant requirements.
    • Boilers and compressors: Auditing these systems identifies inefficiencies and opportunities for technology, equipment, and operation improvements (e.g., heat cascading, insulation, maintenance).
    • Motors: Monitoring motor health can save up to 18% of energy consumption

    Typical Areas for Savings (Energy Management) (continued)

    • HVAC (Heating, Ventilation, Air Conditioning): Optimizing systems saves energy without sacrificing comfort. Identify leakages and improve maintenance routines.

    Operation & Maintenance Efficiency

    • Developing a strategic plan based on factory settings

    Water Management

    • Importance of optimizing water management in energy management projects

    ISO 50001-2011 Process (Diagram)

    • Continuous loop focused on energy policy, planning, implementation, checking, monitoring, corrective action, management review, and continual improvement.

    Benefits of Implementing ISO 50001

    • Allows the establishment and improvement of energy systems and processes
    • A continuous improvement process is introduced
    • Energy monitoring and analysis processes are formalized
    • Energy policy and objectives are formalized
    • Energy efficiency, energy use and consumption are improved; drives innovation

    Importance of Feasibility Studies

    • Rising energy costs
    • Limited availability of energy resources
    • Global competition
    • Global warming and climate change

    Importance of Feasibility Studies (continued)

    • Energy is now too expensive to waste
    • A saved kilowatt hour (kWh) is better than a generated kWh
    • Energy conservation is considered a critical resource
    • Reducing air pollution

    Typical Energy Efficiency Values in Presentation

    • Energy consumption reductions up to 18%
    • 94% of electrical energy usage in compressors is dissipated as heat
    • Reducing 2.75 pounds of carbon dioxide for every pound of methane combusted

    Acid Rain Distribution (Map)

    • Map showing areas with high acid sensitivity

    Improved Environmental Quality

    • Reduced energy consumption results in less airborne particulate, sulfur dioxide, nitric oxide emissions, acid rain, and coal/petroleum field development's on-site pollution.
    • Reduced cooling requirements/efficient systems reduce CFC use, reduces ozone depletion.

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    ENV 214 Environmental Management Lecture Notes PDF

    Description

    Test your understanding of various energy classifications and forms with this quiz. Explore mechanical energy, electromagnetic energy, and the distinctions between primary and secondary energy types. Perfect for students studying energy concepts!

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