Podcast
Questions and Answers
Renewable energy will be discussed along with their examples in the ______.
Renewable energy will be discussed along with their examples in the ______.
Philippines
The conversion of sunlight into usable energy forms is referred to as ______ energy.
The conversion of sunlight into usable energy forms is referred to as ______ energy.
solar
Direct radiation is the radiation from the sun that reaches the Earth without ______.
Direct radiation is the radiation from the sun that reaches the Earth without ______.
scattering
The amount of solar energy available at a location depends on its geographic ______.
The amount of solar energy available at a location depends on its geographic ______.
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Learning Outcome 3 involves selecting appropriate design treatment schemes for waste ______.
Learning Outcome 3 involves selecting appropriate design treatment schemes for waste ______.
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Major constraints in pursuing RE in the Philippines include insufficient fiscal and financial ______.
Major constraints in pursuing RE in the Philippines include insufficient fiscal and financial ______.
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The absence of a commercially viable market for RE systems is another major ______.
The absence of a commercially viable market for RE systems is another major ______.
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The life cycle of energy systems helps determine environmental burdens from cradle to ______.
The life cycle of energy systems helps determine environmental burdens from cradle to ______.
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For photovoltaics (PV), the operational processes contribute to ______% of CO2e emissions.
For photovoltaics (PV), the operational processes contribute to ______% of CO2e emissions.
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Wind energy generation has approximately ______ g CO2e/kWh during power generation stages.
Wind energy generation has approximately ______ g CO2e/kWh during power generation stages.
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One of the most efficient solar electric technologies is found in ______, US.
One of the most efficient solar electric technologies is found in ______, US.
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Flat plate solar collectors are mostly used in heating water for ______.
Flat plate solar collectors are mostly used in heating water for ______.
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Heliostats utilize two-axis tracking mirrors to concentrate solar ______.
Heliostats utilize two-axis tracking mirrors to concentrate solar ______.
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One advantage of solar photovoltaics is that module manufacturing allows for ______ of scale.
One advantage of solar photovoltaics is that module manufacturing allows for ______ of scale.
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A disadvantage of PV is that power output is limited to times when the sun is ______.
A disadvantage of PV is that power output is limited to times when the sun is ______.
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Biomass energy can be produced by burning wood, bark, branches, and other plant and animal ______.
Biomass energy can be produced by burning wood, bark, branches, and other plant and animal ______.
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San Carlos Biopower Inc. in Negros Occidental uses agricultural wastes such as sugarcane ______ for energy production.
San Carlos Biopower Inc. in Negros Occidental uses agricultural wastes such as sugarcane ______ for energy production.
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Burning biomass generates heat, which is then used to produce ______.
Burning biomass generates heat, which is then used to produce ______.
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Diffuse radiation is radiation that is scattered by the atmosphere and ______.
Diffuse radiation is radiation that is scattered by the atmosphere and ______.
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A solar thermal collector converts solar radiation into useful ______.
A solar thermal collector converts solar radiation into useful ______.
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The Parabolic Trough Solar Thermal System uses mirrors to concentrate sunlight onto a ______ tube.
The Parabolic Trough Solar Thermal System uses mirrors to concentrate sunlight onto a ______ tube.
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The Central Tower Solar Thermal System utilizes numerous ______ to reflect sunlight.
The Central Tower Solar Thermal System utilizes numerous ______ to reflect sunlight.
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The fluid medium in the Central Tower System can be water, fused ______, or air.
The fluid medium in the Central Tower System can be water, fused ______, or air.
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The Linear Fresnel Solar Thermal System features a one-axis solar ______.
The Linear Fresnel Solar Thermal System features a one-axis solar ______.
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Parabolic Dish Solar Thermal System focuses sunlight on an ______ with a cavity receiver.
Parabolic Dish Solar Thermal System focuses sunlight on an ______ with a cavity receiver.
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Solar Thermal technologies are accepted worldwide for applications in ______, industries, and hotels.
Solar Thermal technologies are accepted worldwide for applications in ______, industries, and hotels.
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Renewable and non-renewable sources are our options as energy ______.
Renewable and non-renewable sources are our options as energy ______.
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Denmark aims to use 100% renewable energy in energy and transport sectors by ______.
Denmark aims to use 100% renewable energy in energy and transport sectors by ______.
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In 2017, Denmark produced 28.6% of its energy from ______ sources.
In 2017, Denmark produced 28.6% of its energy from ______ sources.
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Fossil fuels account for over ______% of the global energy mix.
Fossil fuels account for over ______% of the global energy mix.
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The energy mix of a region depends on the availability of usable resources and historical, economic, social, demographic, environmental, and ______ factors.
The energy mix of a region depends on the availability of usable resources and historical, economic, social, demographic, environmental, and ______ factors.
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In the Philippines, higher energy production comes from ______ compared to South Korea and Germany.
In the Philippines, higher energy production comes from ______ compared to South Korea and Germany.
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The main renewable energy sources mentioned include hydropower, geothermal, biomass, and ______.
The main renewable energy sources mentioned include hydropower, geothermal, biomass, and ______.
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Germany and South Korea incorporate ______ power into their energy mix.
Germany and South Korea incorporate ______ power into their energy mix.
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The steam is used by a steam ______ to produce electricity.
The steam is used by a steam ______ to produce electricity.
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Falling water produces energy which is harnessed through ______ to contribute to total energy supply.
Falling water produces energy which is harnessed through ______ to contribute to total energy supply.
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In the Philippines, ______ Falls and Agus VI Hydroelectric Plant supply 200 MW of electricity.
In the Philippines, ______ Falls and Agus VI Hydroelectric Plant supply 200 MW of electricity.
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Less destructive alternatives to dams include low-head hydropower technologies and high-efficiency ______.
Less destructive alternatives to dams include low-head hydropower technologies and high-efficiency ______.
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Wind energy is captured using turbines to generate ______.
Wind energy is captured using turbines to generate ______.
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An example of wind energy in the Philippines is the ______ Wind Farm in Rizal.
An example of wind energy in the Philippines is the ______ Wind Farm in Rizal.
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Energy is the main driver of every nation's ______.
Energy is the main driver of every nation's ______.
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The potential for wind energy in the Philippines can be found on the ______ parts of the map.
The potential for wind energy in the Philippines can be found on the ______ parts of the map.
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Study Notes
Sustainable Energy Management
- Renewable energy sources and their applications are discussed, along with considerations for energy management in countries like the Philippines.
Learning Outcomes
- ILO 2: Identify environmental pollution effects and the engineer's role in material manipulation and resource management.
- ILO 3: Select appropriate waste disposal design and safety measures, and explain their community and workplace impact.
Topic Outcomes: Renewable Energy
- Renewable energy resources are described, analyzing their advantages and disadvantages.
Solar Energy
- Solar energy converts sunlight into usable forms, including solar photovoltaics (PV) and solar thermal electricity.
- Sunlight radiation arriving outside Earth has a specific spectral distribution that changes as it passes through the atmosphere.
- The amount of solar energy varies based on geographic latitude, time of day, and year.
- Solar radiation components include direct radiation, which reaches Earth without scattering, and can be concentrated.
Established Solar Technologies
- Solar PV: Directly converts solar energy to electricity, absorbing 80% of incident radiation but only converting a portion. Excess heat is released during operation.
- Solar Thermal: Solar energy is harnessed for various thermal applications like domestic use, industry, hotels, and hospitals. Use thermal energy for space heating and fluid, and generate electricity. It's been accepted globally for thermal power.
Different Solar Thermal Technologies
- Parabolic trough systems use troughs to concentrate sunlight onto receiver tubes along the focal line. (e.g., SEGS, California)
- Central tower systems use heliostats to reflect sunlight onto a high-temperature absorber on a central tower. (e.g., Ivanpah Power Facility, California)
- Linear Fresnel systems use one-axis tracking, dividing the parabola into multiple mirrors.
- Parabolic dish systems use heliostats focusing sunlight onto an engine with a cavity receiver.
- Flat plate collectors are commonly used for heating water.
Solar Photovoltaics
- Modules are manufactured in large plants to achieve economies of scale.
- PV generates power only from sunlight; power output fluctuates based on sunlight availability.
- Various solutions can address this fluctuation like flexible generation, grid infrastructure, and storage options.
Biomass Energy
- Biomass uses wood, bark, branches, starchy roots, manure, and other plant/animal materials for energy production through burning.
- Examples include sugarcane trash, coconut husks, and shells, woods, grasses, and other energy crops in the Philippines.
Biomass Energy Conversion Process
- Biomass is burned in a boiler generating steam.
- Steam drives a turbine connected to a generator that creates electricity.
Hydropower
- Falling water is harnessed for energy generation through dams.
- Dams may have environmental effects; for example drought, freshwater biodiversity issues, and impact to fishing industries and displacement of communities.
- The Philippines uses hydroelectric plants like Maria Cristina and Agus VI for energy supply.
Wind
- Wind energy captures kinetic energy from turbines to generate electricity, and can be onshore or offshore.
- Past windmills were used for irrigation.
- Examples include Pililla Wind Farm in Rizal, Philippines that supplies 54 MW to Meralco.
Sustainable Energy
- Energy is a key driver of economies, and the source choice has global effects.
- Renewable energy options are available but non-renewable sources (coal, oil, natural gas) are still needed due to global temperature considerations.
- Denmark aims for 100% renewable energy by 2050, and some countries will take some time to adopt renewable energy options.
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Description
Test your knowledge on renewable energy sources and their applications, particularly in the context of the Philippines. Explore the environmental impact of energy management strategies and analyze the advantages and disadvantages of solar energy. This quiz covers essential learning outcomes related to waste management and pollution effects.
