Category Archives: Sustainable Energy

Ishmael 2013

The class I am taking on Energy and Sustainability has given me occasion to rethink the cost upon our living planet in man’s pursuit of energy, and profit.  With consciousness being the partial product of advertising, it is been difficult to imagine a world not run by the fossil fuel industry.   What would our planet be like with out burning oil fields, exploding rail cars, vast open pit mines, drilling operations, and the infrastructure required to excavate, mine, transport, refine, distribute, meter, burn,  carbon-based fuel let alone maintaining such a complex infrastructure?

Petroleum as a source of energy is a relatively recent arrival in the history of civilization.  This doesn’t mean that it is here forever; that man and carbon fuels will be joined at the hip until the end of humanity; unless of course fossil fuel consumption ushers in that end.

From the early 1600’s, until shortly after the invention of kerosene, whale oil lit the lamps of America and Western Europe.  Consumers also used the bone, fat, and meat, of whales to make soap, perfumes, hoops for dresses, shirt stays, and candles.

Whale oil lamps

1846 was the peak the whaling industry was the fifth largest income producing industry in the United States economy. Coincidentally, it was also the year in which kerosene was discovered and the petroleum industry began.

In 1851 Herman Melville’s Moby Dick was published, six years past the whaling industry’s peak. By that time, kerosene had started to make inroads into the marketplace. The advent of less-expensive, more reliable petroleum technology eroded the need for rendered fat from whales to burn for light.

By 1861 America’s once valuable fleet of 640 whaling vessels were nearly worthless. Whaling ships were purchased by the Union Army, filled with granite, and strategically sunk in a failed attempt to blockade rivers during the American Civil war.

Before the end of the century, the whaling industry had declined by ninety percent, thanks to a still burgeoning petroleum technology and the discovery of plastics.

It may be difficult to imagine, but as the reigning technology of the day, no one thought whaling would lose its position in the marketplace:

“Great noise is made by many of the newspapers and thousands of the traders in the country about Lard oil, Chemical Oil, Camphene Oil, and a half dozen other luminous humbugs; and it has been confidently predicted by more than one astute prophet that the Sperm Oil trade would soon come to an end, and the whales be left in undisturbed possession of their abode . . . But let not our envious… hog-gish opponents, indulge themselves in any such dreams.” — From whale oil and beyond By Eric Jay Dolin That text sounds a lot like the gospel spouted by petroleum bloggers and pundits of today.

Today we have other sources of energy, fashion accessories, food, and and more, but the slaughter of whales continues.

The barbaric whaling video isn’t as much of a non sequitur as you might first think.

The deal is that the technology of petroleum will inevitably face the same fate as Ahab.  The problem is that the new technologies for extracting petroleum products from the earth are equally murderous, barbaric and short-sighted.

Instead of poking harpoons into living breathing animals, we’re now doing the same to sections of the living earth which sustain us all. 97% of the water on our earth is undrinkable. After big capital has poisoned the aquifers, and solar or another technology has consumed the oil industry, Mobil, Shell, Exxon, and others will be selling you clean water to drink.  If this sounds far-fetched, or paranoid, they are already in these industries.

Given what we know of whale oil,  investing in fossil fuels today is analogous to investing in a dominant industry experiencing foundational cracks from the entry of new technology.   What is worse is that fossil fuel companies are overvalued as they rely on “stranded assets;” carbon which will become unburnable for any of a number of reasons.   This is going to result in a major loss of investment value for traditional producers.

Peter Terezakis

Tisch School of the Arts
http://www.terezakis.com

The New Oil” • “The privatization of water“Water is too cheap.” • “Oil companies buy water rights

THE SKY IS PINK by Josh Fox and the GASLAND Team from JFOX on Vimeo.

 

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Pendulum and Energy: Newton’s Shadow, continued…

3000 miles $15

Energy = (Force) (Distance) • Voltage = (Current)(Resistance) • Newton = (meter)(joule)
Potential Energy: PE = m x g x h
PE = 4.53592 kg x (9.8^) x (1.2192 m)
531.5038611456
ASSIGNMENT:
Calculate the energy stored (in joules) in your pendulum using the mass and height measurements, and record this online.

Potential Energy: PE = m x g x h
PE = 4.53592 kg x (9.8^) x (1.2192 m)
PE = 54.192 Joules

Using the duration you measured, calculate the average power, in watts, at which this initial energy was transferred to the environment.

Watt = Joules/second = 54 Watts/second. Each cycle of the pendulum measured just under four seconds.

If you used all the initial potential energy in 10 seconds, what would the power be? 540 Watts

DC motor used as generator Motor in electric drill Generated nearly 4.volts Load motor consumed 380 milliamperes

 

Open-circuit voltage: 4 volts without load. (3.7 volts in opposite direction).

Closed-circuit current for your converter 380 milliamperes (3.68 Volts with load on line).

open circuit voltage

Efficiency = Output/Input

A farad is the charge in coulombs which a capacitor will accept for the potential across it to change 1 volt. A coulomb is 1 ampere second. Example: The voltage across a capacitor with capacitance of 47 nF will increase by 1 volt per second with a 47 nA input current.

What if we can figure out how to safely charge batteries and capacitors using electrostatic energy?

Voltas_Electroscope

Wouldn’t that be something?

Peter Terezakis

Tisch School of the Arts
http://www.terezakis.com

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War of the Currents

We need a paradigm shift and soon.

In 1896, armed with Tesla’s AC patents, George Westinghouse won the contract (against Edison and D.C.) to build the ancestor of today’s power generation facilities at Niagra Falls. (The War of the Currents)

Have a look at part of Edison’s campaign to discredit AC power:

1964 is generally the year given for the advent of the first supercomputer. If the computing power from 1964 is laughable compared to what you are working on today, why are we still using nineteenth century models for the generation and distribution of electrical energy?

Peter Terezakis
ITP, Tisch School of the Arts
New York City

Pendulum experiment

First invented by Galileo Galilei around 1602, Allie, Jon, and Peter successfully reproduce a pendulum.
First invented by Galileo Galilei, Allie, Jon, and Peter successfully reproduced this six hundred ten year-old technology and discovered there was a lot to be learned from a weight swinging from the end of a string…
Here’s the data about our pendulum:
• 10 pound weight used as pendulum bob
• support string/rod 87″
• diameter of the pendulum bob 10″
• 4 feet launch height
Pendulums don’t normally come to mind these days. A short story by Edgar Allen Poe read when I was a child called “The Pit and the Pendulum,” was the stuff of nightmares for an entire winter. I am still uncertain if it was the inexorable action of the device or the fact that the Catholic Church actually sanctioned its use as a method of torture that creeped me out more.

Edgar Alan Poe  Roger Corman adaptation 1961 starring Vincent Price
Edgar Alan Poe
Roger Corman adaptation 1961 starring Vincent Price
Apart from the stuff of nightmares, the pendulum was used in time-keeping for hundreds of years.

Common use for pendulums

Then there is a permutation of the pendulum in Newton’s Cradle:

Outside of the zillions of $ that someone made with this show and the desktop toy, the pendulum seems kind of useless today; timekeeping functions (and torture devices!) have all been superseded by silicon. The machine age dies hard. Long live the electronic age!

Just like everything else that looks simple, the math relating to the pendulum is complicated.

A few items came up while researching this topic that I found interesting:
• Gravitational Potential Energy is defined as the product of Mass*Gravity*Height.
• Gravity is measured as the gravitational acceleration of an object near the surface of the Earth at 9.80665 m/s2
• Kinetic energy increases in direct proportion to the increase in mass and with the square of the increase in velocity.
• Graphed/plotted the action of the pendulum looks like a sine wave
• Given a fixed (unmoving) length, each pendulum possesses a single resonant frequency
For some inexplicable reason, I obsessed on solving for the angle of our rod/string once the bob was pulled out at four feet. I don’t know if this is correct, but this is what I am thinking:Using the data for the pendulum created in class the string (rod) measured 87″ and the diameter of massy-bob was ten inches. Literature suggests that the length of the rod be measured from the point of frictionless attachment to the center of the bob (87″ + 5″ = 92″= L).a-b-c-2
We set the bob in motion from a height of 48″ which is shown in line AC.
Point A-B is defined as AC – the height or 92 – 48 or 44″
a-b-c-3
Given side AC = 92″ and side A-B = 44″ Pythagorean theorem: A (squared)+ B (squared) = C (squared)
(X) + 44(44) = 92(92) then (x) + 1936 = 8464 then (x) = 8464-1936 or (x)= 6528 (x) = square root of 6528 = 80.79″
Which means we now have the bottom leg of the triangle (BC) measured at 80.79″ or 81″.
a-b-c-4
arccos= Hypotenuse/adjacent = arccos=92/44 = Theta = 61 degrees.
a-b-c
With little thanks to troubled years, I have earned a respectful appreciation and antipathy toward pendulum action:
Berta, Branford Marsalis • August Wilson, The Piano • YouTube link

Peter Terezakis
ITP, Tisch School of the Arts
New York City