NewNergy

Webasto Product North America, a global leader in heating and cooling solutions for the light and heavy-duty transportation industries, has received California's Air Resources Board (CARB) approval for its BlueCool Truck Bunk Cooler. Out of all CARB approved devices, BlueCool Truck (BCT) is the only engine-off technology that has no emissions when in use.

BlueCool Truck's source of cooling is a high-tech cold storage unit that is charged (frozen) while the truck is running. During times of driver rest, the system utilizes only small amounts of electricity from the existing vehicle batteries (no additional batteries are needed) to circulate super-chilled coolant between the cold storage unit and a heat exchanger installed in the truck sleeper cabin. Once charged, the system uses no diesel fuel and therefore produces no emissions during the cooling operation because it runs independently of the OEM air conditioning system.

The principle behind how BlueCool Truck works is not a new discovery, it is a natural phenomenon called latent heat. It has been known for centuries that ice has poor thermal conductivity and extracting cold storage efficiently and effectively is extremely difficult. This problem has been overcome now by embedding the water/ice in a high-tech graphite matrix, with a resulting thermal conductivity that is 100 times better than a pure water/ice exchange. The design provides a highly efficient, compact and dynamic thermal energy storage system that produces an assured cooling output at a constant temperature.

Full article here - Zero-Emission, Idle-Reducing Cooling Product From Webasto Earns CARB Approval

Labels: engines, environment, transportation

One of the most promising new ideas in energy efficiency comes from researchers at the Massachusetts Institute of Technology. The proposition: get more power and efficiency out of turbocharged motors by injecting ethanol, methanol or E85 (85 percent methanol, 15 percent gasoline) into the engine at times of higher demands for power.

The MIT crowd claims this technology can boost gas mileage by as much as 30 percent, and that it allows a high-compression engine and high-boost turbocharger to operate on regular gasoline. Daniel Cohn, senior research scientist at the MIT Laboratory for Energy and the Environment, and other MIT professors, have formed a company, Ethanol Boosting Systems, and are testing their concept with Ford Motor.

On another front, Daimler and General Motors are experimenting with motors that run on gasoline but combine features of traditional gasoline engines (fuel ignited by a spark) and diesel technology (fuel ignited by compression of fuel and air).

More from here -Automakers explore gas-saving technology

Labels: efficiency, engines, ethanol

Oxidation stability of biodiesel and blends

A standardised quality parameter to avoid motor damage can be easily determined with the highly reliable Biodiesel Rancimat from Metrohm UK. In addition to other alternative fuels such as ethanol, methanol or biogas (methane), fatty acid methyl esters are increasingly found on the market; these are then known as biodiesel, RME (rapeseed oil methyl esters) or FAME (fatty acid methyl esters).

Read more from this article @ Manufacturing Talk

Labels: biodiesel, engines

Cummins Announces Approval of B20 Biodiesel Blends

23 Mar 2007

Louisville, Kentucky [RenewableEnergyAccess.com]

Cummins Inc. announced the approval of biodiesel B20 blends for use in its 2002 and later emissions-compliant ISX, ISM, ISL, ISC and ISB engines. This includes the recently released 2007 products.

Cummins is able to upgrade its previous position on the use of biodiesel fuel, which limited the use to B5 blends only, up to B20 for three key reasons.

Read the full report from here @ Renewable Energy Access

Labels: biodiesel, engines