Monthly Archives: December 2014

Proposed ‘Energy East’ Pipeline Benefits Overblown Argues Report

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The proposed Energy East pipeline won’t be the boon to Eastern Canadian refineries that supporters claim because the vast majority of the oil in it would be bound for export markets, environmental groups argue in a report being released Tuesday.

Source: www.cbc.ca

>” […]

Refinery capacity already in use

The report Tuesday said the three refineries along the Energy East route — Suncor Energy’s in Montreal, Valero’s near Quebec City and Irving’s in Saint John, N.B. — have a combined capacity of 672,000 barrels per day.

Of that, the groups figure 550,000 barrels per day can come from elsewhere — offshore crude in Atlantic Canada, booming U.S. shale resources and, eventually, via Enbridge Inc.’s recently approved reversed Line 9 pipeline between southwestern Ontario and Montreal. That leaves just 122,000 barrels per day of refining capacity that can be served by Energy East, the report said.

“It’s very frustrating to watch a company trying to convince Canadians that they should accept these massive risks based on some perceived benefit that they may receive. When you dig into it, you find that it’s an empty promise,” said Adam Scott, with Environmental Defence.

“It’s just not true that Eastern Canada’s going to benefit in the way that TransCanada’s saying they are. And when you look and see that this is a project about putting vast quantities of oil onto tankers and shipping them out of the country, people who are convinced that ‘this is going to mean more local jobs for me’ are going to be very disappointed.” […]”<

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Industrial Metals Contaminate Vancouver Community Garden – Brownfield Sites

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An eight-month study of Vancouver garden and agricultural soils has found levels of lead and other metals above the most stringent Canadian standards for human health.Samples taken from the 16 Oaks community garden averaged 219 parts per million of lead, which exceeds the standard of 70 to 140 ppm for agricultural, residential and park land set by the Canadian Council of Environment Ministers.Levels of lead — a potent neurotoxin — are five times higher than those measured at UBC Farm

Source: www.vancouversun.com

>” […] “These numbers are higher than is commonly acceptable for growing vegetables and food crops.”

Oka’s findings may call into question the City of Vancouver’s enthusiasm for urban agriculture.

“You want to be conservative. According to the precautionary principle, if you aren’t sure what you are dealing with, you have a moral and ethical responsibility to go slowly,” said Lavkulich. “We aren’t saying don’t grow food, but you want to be sure what the impacts are on human health before you start advocating for urban agriculture.”

The city encourages would-be gardeners to have their soil tested and, barring that, to grow vegetables in lined boxes with clean soil rather than in the native soil, said Coun. Andrea Reimer.

“This city has a long industrial history and they didn’t always have the environmental standards that we have today,” she said. […]”<

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Scientists Discover New Form of Crystalline Order with High Potential for Thermoelectrics

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InterlacedCrystalsSince the 1850s scientists have known that crystalline materials are organized into 14 different basic lattice structures. However, a team of researchers from Vanderbilt University and Oak Ridge National Laboratory (ORNL) now reports that it has discovered an entirely new form of crystalline order that simultaneously exhibits both crystal and polycrystalline properties, which they describe as “interlaced crystals.”

Source: www.energyharvestingjournal.com

>” […] The interlaced crystal arrangement has properties that make it ideal for thermoelectric applications that turn heat into electricity, they report. The discovery of materials with improved thermoelectric efficiency could increase the efficiency of electrical power generation, improve automobile mileage and reduce the cost of air conditioning.   “We discovered this new form while studying nano particles,” said Sokrates Pantelides, University Distinguished Professor of Physics and Engineering at Vanderbilt, who coordinated the study. “It most likely exists in thin films or bulk samples, but it has apparently gone unnoticed.”  […]

According to the researchers, the interlaced crystal structure may be just what is needed to optimize thermoelectric applications for power generation or cooling. Thermoelectric devices need a material that is an excellent electrical conductor and a poor conductor of heat. The problem is that materials like metals that are good electrical conductors also tend to be good heat conductors and vice versa. Defects and grain boundaries that retard heat flow also reduce electrical conductivity.   In addition to CuInS2, there is a large class of materials that should have similar interlaced structures. When made into thin films, they should be excellent thermoelectric materials, the researchers predict.   “We haven’t tested this yet, but we are confident that these materials have high electrical conductivity and low thermal conductivity…just what you need for thermoelectrics. The field is now wide open for scientists who can fabricate thin films and make thermoelectric measurements,” said Pantelides.”<

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Energy Efficiency Key to Reducing Energy Waste and Consumption

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Advocates say doing more with less power may be an even more critical weapon in the fight against climate change than renewable technologies.

Source: www.nytimes.com

>” […]

“Some people call energy efficiency low-hanging fruit. I would even say energy efficiency is fruit lying on the ground. We only need to bend over and pick it up.”

Realizing those energy savings would be a huge boon to the climate, ease illness-causing air pollution, reduce many nations’ reliance on fuel imports and increase competitiveness by lowering costs, the advocates say. It creates jobs in fields like upgrading buildings, and is generally cheaper than the alternative of constructing new power plants and buying more energy, they argue. […]”<

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Commercial ORC Used for Waste Heat Recovery on Industrial Electric Arc Furnace

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Turboden, a group company of Mitsubishi Heavy Industries, has implemented the first ORC-based heat recovery plant on an Electric Arc Furnace (EAF) in the world

Source: www.pennenergy.com

>” […] The heat recovery system was started up on December 2013. It is connected to the off-gas treatment system of the melting electric furnace. The recovered energy reduces net power consumption, allowing significant CO2 reduction.

In addition to electricity production, the remaining portion of the steam is fed into the Riesa Municipal steam supply system and used in a nearby tire factory production process.

Turboden designs, develops and implements generation plants, allowing reduction of industrial energy consumption and emissions containment through heat recovery from unexploited residual heat streams and exhaust gases in production processes and power plants.

This technology is best applied in energy-intensive industries such as glass, cement, aluminum, iron & steel, where production processes typically generate exhaust gases above 250°C.

These new plants not only provide advantages in terms of environmental sustainability, emissions reduction, increased industrial process efficiency and improved business performance, but they also represent opportunities for increased competitiveness.”<

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Organic Rankine Cycle (ORC) Heat Recovery Technology For Ships

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The company has developed a marine Organic Rankine Cycle (ORC) system for waste heat recovery and power generation that could reduce fuel consumption by up to 10%.

Source: www.motorship.com

“> […] Enertime’s ORC system produces between 500kW and 1MW of electrical power depending on the available amount of heat. The unit is based on a tailor-made axial turbine and is specifically designed to work in the marine environment. The development work has involved shipyards, shipowners and a classification society, says Mr David.

“Compared to a steam power cycle, ORC systems need very low maintenance, display good part-load efficiency, high availability and can be operated without permanent monitoring,” he said. “Daily operation and maintenance can be carried out without specific qualification.”

The ORC system can work with any kind of heat source. The unit can recover heat from a number of different sources singly or in combination including low-temperature jacket cooling from engines, steam or thermal oil systems and pressurised hot water. Exhaust gas from engines or auxiliaries is the main available heat on board ships, and it can be collected through an exhaust gas heat exchanger and brought to the ORC unit using steam, pressurised water or thermal oil. […]

The ORC layout is flexible and the unit can also be installed as a retrofit where it is possible to adapt the layout of the machinery to specific constraints by splitting it on different levels, for example.

“This kind of system would be very interesting for bulk carriers, small to medium size oil tankers, ferry boats, small container ships… with payback time between two to five years,” […]”<

 

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