Guest lecture given to first-year engineering students at the University of British Columbia, 2013 Sept 10. (APSC 150)
Title: A sustainable (energy) future
After a brief preface on intellectual self-defense, the presentation discussed the science underpinning our understanding of climate change, followed by an analysis of worldwide energy use.
The experience curve was introduced as a force arguably more powerful than Moore's Law (because it applies in virtually every manufacturing sector) and the main reason that renewables (wind and solar, for the time being) are likely to displace fossil fuel and nuclear power in the coming decades -- not for reasons of conscience, but reasons of cost.
Lastly, the metaphor of the "utility death spiral" was introduced to explain the probable impact of efficiency and renewables, on the fossil-and-nuclear dominated utility sector, in coming decades.
Sustainability Reading: Natural Capital and Ecosystem RightsSam Bleiberg
A short powerpoint on the carbon cycle, natural capital, and rights for ecosystems based on readings for the Pratt Sustainable Design Foundations Course.
Guest lecture given to first-year engineering students at the University of British Columbia, 2013 Sept 10. (APSC 150)
Title: A sustainable (energy) future
After a brief preface on intellectual self-defense, the presentation discussed the science underpinning our understanding of climate change, followed by an analysis of worldwide energy use.
The experience curve was introduced as a force arguably more powerful than Moore's Law (because it applies in virtually every manufacturing sector) and the main reason that renewables (wind and solar, for the time being) are likely to displace fossil fuel and nuclear power in the coming decades -- not for reasons of conscience, but reasons of cost.
Lastly, the metaphor of the "utility death spiral" was introduced to explain the probable impact of efficiency and renewables, on the fossil-and-nuclear dominated utility sector, in coming decades.
Sustainability Reading: Natural Capital and Ecosystem RightsSam Bleiberg
A short powerpoint on the carbon cycle, natural capital, and rights for ecosystems based on readings for the Pratt Sustainable Design Foundations Course.
New energy sources and energy efficiency to prevent catastrophic global clima...Fernando Alcoforado
Regardless of the various solutions that may be adopted to eliminate or mitigate the causes of global warming, the most important is undoubtedly the adoption of measures to contribute to the elimination or reduction of the consumption of fossil fuels in energy production as well as for their more efficient use in transport, industry, agriculture and urban areas (residential and commercial), given the use and production of energy account for 57% of greenhouse gases emitted by human activity. In this sense, the implementation of a world sustainable energy system is essential.
Im Zuge der Energiewende wird die Speicherung des überschüssig anfallenden Stroms aus Wind und Sonne zu einem Schlüsselthema. Eine Lösung heißt "Methanisierung" oder Power-to-gas. Doch: Wie geht das, welche Randbedingungen gelten und wie teuer wird das?
Der Artikel von Dr. v. Schnurbein vom DEBRIV gibt hier Antwort auch für Nicht-Experten.
Eines sei vorweggenommen: Wirkungsgrad von 14 - 35%, Kosten von 79 - 228 ct/kWh!
New energy sources and energy efficiency to prevent catastrophic global clima...Fernando Alcoforado
Regardless of the various solutions that may be adopted to eliminate or mitigate the causes of global warming, the most important is undoubtedly the adoption of measures to contribute to the elimination or reduction of the consumption of fossil fuels in energy production as well as for their more efficient use in transport, industry, agriculture and urban areas (residential and commercial), given the use and production of energy account for 57% of greenhouse gases emitted by human activity. In this sense, the implementation of a world sustainable energy system is essential.
Im Zuge der Energiewende wird die Speicherung des überschüssig anfallenden Stroms aus Wind und Sonne zu einem Schlüsselthema. Eine Lösung heißt "Methanisierung" oder Power-to-gas. Doch: Wie geht das, welche Randbedingungen gelten und wie teuer wird das?
Der Artikel von Dr. v. Schnurbein vom DEBRIV gibt hier Antwort auch für Nicht-Experten.
Eines sei vorweggenommen: Wirkungsgrad von 14 - 35%, Kosten von 79 - 228 ct/kWh!
"Lernen ist dann erfolgreich, wenn sich das Verhalten geändert hat"
Wie kann das erreicht werden, welche Ansätze ergeben sich bei den heutigen technischen Möglichkeiten? Lernen kann nicht mehr losgelöst von der Arbeitswelt gesehen werden, sondern wird immer mehr Teil der Arbeit. Konkrete Trainings müssen also mehr sein, als eine Präsenzveranstaltung mit praktischen Übungen. Hier wird bei der RWE Power AG mit "Global Blended Learning" ein Ansatz verfolgt, um Lernen sukzessive zum Arbeitsinhalt zu machen.
Global Blended Learning - von der Idee in die Arbeitswelt Willi Stock
Wie sieht der Blended Learning-Ansatz der RWE Power AG aus? Warum Global Blended Learning?
Welche Lernumgebung wird hier wie genutzt? Nach knapp 2 Jahren stehen die ersten Erfahrungen und Ergebnisse fest. RWE geht weiter vorweg - auch im Lernen...
An inconvenient truth was a documentary about how the earth’s temperatures are rising, the polar ice caps are melting and the oceans are rising. Decade after decade we hear news about climate change, increasing pollution with more and more animals and people getting sick. Basically, the story was all about how the earth will die if we won’t do something about it. Get all the info you need here.
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UNDERSTANDING WHAT GREEN WASHING IS!.pdfJulietMogola
Many companies today use green washing to lure the public into thinking they are conserving the environment but in real sense they are doing more harm. There have been such several cases from very big companies here in Kenya and also globally. This ranges from various sectors from manufacturing and goes to consumer products. Educating people on greenwashing will enable people to make better choices based on their analysis and not on what they see on marketing sites.
Characterization and the Kinetics of drying at the drying oven and with micro...Open Access Research Paper
The objective of this work is to contribute to valorization de Nephelium lappaceum by the characterization of kinetics of drying of seeds of Nephelium lappaceum. The seeds were dehydrated until a constant mass respectively in a drying oven and a microwawe oven. The temperatures and the powers of drying are respectively: 50, 60 and 70°C and 140, 280 and 420 W. The results show that the curves of drying of seeds of Nephelium lappaceum do not present a phase of constant kinetics. The coefficients of diffusion vary between 2.09.10-8 to 2.98. 10-8m-2/s in the interval of 50°C at 70°C and between 4.83×10-07 at 9.04×10-07 m-8/s for the powers going of 140 W with 420 W the relation between Arrhenius and a value of energy of activation of 16.49 kJ. mol-1 expressed the effect of the temperature on effective diffusivity.
WRI’s brand new “Food Service Playbook for Promoting Sustainable Food Choices” gives food service operators the very latest strategies for creating dining environments that empower consumers to choose sustainable, plant-rich dishes. This research builds off our first guide for food service, now with industry experience and insights from nearly 350 academic trials.
Artificial Reefs by Kuddle Life Foundation - May 2024punit537210
Situated in Pondicherry, India, Kuddle Life Foundation is a charitable, non-profit and non-governmental organization (NGO) dedicated to improving the living standards of coastal communities and simultaneously placing a strong emphasis on the protection of marine ecosystems.
One of the key areas we work in is Artificial Reefs. This presentation captures our journey so far and our learnings. We hope you get as excited about marine conservation and artificial reefs as we are.
Please visit our website: https://kuddlelife.org
Our Instagram channel:
@kuddlelifefoundation
Our Linkedin Page:
https://www.linkedin.com/company/kuddlelifefoundation/
and write to us if you have any questions:
info@kuddlelife.org
"Understanding the Carbon Cycle: Processes, Human Impacts, and Strategies for...MMariSelvam4
The carbon cycle is a critical component of Earth's environmental system, governing the movement and transformation of carbon through various reservoirs, including the atmosphere, oceans, soil, and living organisms. This complex cycle involves several key processes such as photosynthesis, respiration, decomposition, and carbon sequestration, each contributing to the regulation of carbon levels on the planet.
Human activities, particularly fossil fuel combustion and deforestation, have significantly altered the natural carbon cycle, leading to increased atmospheric carbon dioxide concentrations and driving climate change. Understanding the intricacies of the carbon cycle is essential for assessing the impacts of these changes and developing effective mitigation strategies.
By studying the carbon cycle, scientists can identify carbon sources and sinks, measure carbon fluxes, and predict future trends. This knowledge is crucial for crafting policies aimed at reducing carbon emissions, enhancing carbon storage, and promoting sustainable practices. The carbon cycle's interplay with climate systems, ecosystems, and human activities underscores its importance in maintaining a stable and healthy planet.
In-depth exploration of the carbon cycle reveals the delicate balance required to sustain life and the urgent need to address anthropogenic influences. Through research, education, and policy, we can work towards restoring equilibrium in the carbon cycle and ensuring a sustainable future for generations to come.
Climate Change All over the World .pptxsairaanwer024
Climate change refers to significant and lasting changes in the average weather patterns over periods ranging from decades to millions of years. It encompasses both global warming driven by human emissions of greenhouse gases and the resulting large-scale shifts in weather patterns. While climate change is a natural phenomenon, human activities, particularly since the Industrial Revolution, have accelerated its pace and intensity
1. Renewable energy and social responsibility
The cost-energy-equivalence law
Everything that arises, needs energy (2nd law of thermodynamics).
This energy comes from the sun, from food, from manual labor, from
conventional energy sources, etc.
With the use of energy and raw
materials begins wealth, bartering
begins and life expectancy increases.
Man is the dominant creature on
Earth.
The value of exchanged goods and
raw materials is the equivalent of the
energy stuck directly or indirectly
therein.
08/31/14 Dipl.-Ing. Wilhelm Stock 1
2. Renewable energy and social responsibility
The cost-energy-equivalence law
Energy is used more and more to tap raw materials. Slowly the barter trade
is replaced by money transactions. As before, the products, money is now
also an equivalent to the energy contained in the product.
Only with the opening up of larger energy sources such as coal, oil and
nuclear energy, manages the slow social upheaval to the affluent society.
Social systems, democracy and decent life are accessible to more and more
people of the rapidly growing world population.
The increasing amount of money and commodities correlates to the value of
the consumed energy.
08/31/14 Dipl.-Ing. Wilhelm Stock 2
3. Renewable energy and social responsibility
The cost-energy-equivalence law
But goods and money (hence the energy) can also be destroyed: breaking
the exchanged pitcher, crashes a hut purchased or whole regions are
devastated in wars, the equivalent values o r parts of it are lost forever.
08/31/14 Dipl.-Ing. Wilhelm Stock 3
4. Renewable energy and social responsibility
The cost-energy-equivalence law
To summarize, money, or the value of a commodity or product is always the
equivalent of the energy contained in.
The vast majority of this energy comes from conventional energy sources.
Development of additional energy sources enables a society to achieve
prosperity and decent life. Is not enough energy available, the society
remains poor, malnourished and with low life expectancy (eg third world).
08/31/14 Dipl.-Ing. Wilhelm Stock 4
5. Renewable energy and social responsibility
The cost-energy-equivalence law
If commodities or products are subsidized, the government spends more
energy (and money) to the producer, so they can be traded at all competitive in
the market.
An example is subsidisation of renewable energies. Conventional energy must
be used to make renewables marketable.
08/31/14 Dipl.-Ing. Wilhelm Stock 5
6. Renewable energy and social responsibility
The cost-energy-equivalence law
Renewable energy is a waste of conventional energies, every kWh subsidized
"ecological energy" includes an equivalent from coal, nuclear or gas.
The subsidies in renewables are missing to secure the social systems or to
achieve for billion of people in other societies food, health and prosperity. With
each kWh consumed “green electricity” is somewhere in the world a much
needed medicine or a meal missing.
Renewable energies are therefore only socially and economically justifiable to
use when no subsidization is required.
08/31/14 Dipl.-Ing. Wilhelm Stock 6
7. Renewable energy and social responsibility
The cost-energy-equivalence law
Conclusion:
• The subsidy of inefficient renewable energy must be stopped immediately in
order to protect the environment by reducing emissions
• Research in energy efficiency technologies, renewables and nuclear fusion
must be increased to reach market maturity beyond the need for subsidies
• The third world has to be supported in developing their own energy
ressources for their own benefit
How do you tell your children, that you have taken
away and destroyed limited existing resources to
consume unlimited additional existing resources such
as wind and sun?
Thanks to Dr. Heinz Schütte, http://www.kosten-energie-aequivalenzgesetz.com/KEAG-e.pdf
and
08/31/14 Dipl.-Ing. Wilhelm Stock 7