Analysis Of Nitrous Oxide Emissions From Light Duty Passenger Cars
Analysis Of Nitrous Oxide Emissions From Light Duty Passenger Cars
Greenhouse gas emissions (GHG) from light-duty vehicles have received attention recently because of increased focus on global warming and climate change. Relative to emissions of regulated pollutants like hydrocarbons and nitrogen oxides, nitrous oxide (N2O) emissions from all vehicles are generally very low. However, N2O is a powerful greenhouse gas, and small emissions of N2O can contribute substantially to total GHG inventories. Two fleets of different vehicle models, both meeting the current US Tier 1 emission standard, were evaluated in an effort to develop a better understanding of N2O emissions from modern three-way catalyst-equipped vehicles. Nine 1997 Ford Crown Victoria vehicles operating on clean-burning US Federal Phase 2 Reformulated Gasolines were assessed over 60,000 miles. For additional comparison, testing was also conducted with catalysts from six 1994 Toyota Camry vehicles, which had previously undergone 110,000 miles of controlled mileage accumulation. Emissions measurements were conducted on a second-by-second basis using FTIR during the US Federal Test Procedure cycle. This allowed both modal emissions analysis and calculation of equivalent mass bag emissions. Potential impacts of vehicle technology, catalyst aging, modal operation and the fuel additive MMT on tailpipe N2O emissions are discussed.
This week Porsche launched a new web tool to help customers visualize their very own custom built Porsche. With the addition of the new Porsche Car Configurator to the Fitting Lounge available to Beverly Hills Porsche customers, ordering a new Porsche car becomes an exciting event. Are you ready to build the sports car of your dreams? Let the expert staff at Beverly Hills Porsche guide you through the process with our state of the art Fitting Lounge on Rodeo Drive in Beverly Hills. Press Release: On the occasion of the world premiere of the new 911, Dr. Ing. F. Porsche AG, Stuttgart, is setting new standards on the Internet as well. The Porsche Car Configurator enables every customer to design their own personal Porsche, view it from all sides and against different backgrounds in full-screen mode and order the configuration directly from the Porsche dealer. Porsche is using a newly developed interactive 3D animation for the Porsche Car Configurator so that the customer can picture exactly what his/her new 911 will look like. This enables myriad equipment details of the customised 911, such as a wood, aluminium or leather finish, various sports seats or rims to be depicted in a realistic way. A panoramic tour then enables you to feast your eyes on your customised dream car from every angle. Beverly Hills Porsche, Number One in New Porsche Sales for all of the USA! Intelligent Performance on Every Level. Find us on Facebook! Beverly Hills Porsche is an authorized factory dealership of Porsche cars, SUVs, accessories, parts and merchandise. Centrally located to all of Los Angeles, we aim to be a complete lifestyle destination for all Porsche owners and fans! Like it, Love it, Share it! Subscribe to our blog or click on one of the social share buttons below.
Concept could be unveiled in L.A. New details are starting to emerge about the Audi A9 concept, ahead of its rumored debut at the Los Angeles Auto Show. According to Autocar, the concept is currently under construction and will be used to preview the company's future styling direction. Audi has remained tight-lipped about the car but sources have told the magazine it will be a four-door coupe with laser headlights and a "newly interpreted" version of their single frame grille. The concept is also slated to preview a production model which could be launched in 2017 to battle the Porsche Panamera and Mercedes CLS. The car will reportedly be based on the MLB Evo platform and be heavily influenced by 2016 A8. Specifications remain a mystery but the A9 will reportedly be offered with a variety of engines including a twin-turbo 3.0-liter V6 and a twin-turbo 4.0-liter V8. The latter engine will also be used in the S9 where it is rumored to produce up to 600 bhp (447 kW). Rumors also suggest there will be two diesel options including a 3.0-liter V6 and 4.0-liter V8. There could also be petrol and diesel plug-in hybrid variants but nothing is official as of yet.
The engines, as you would expect, are characterised by six horizontally opposed cylinders. The 3.4-litre engine in the 911 Carrera models produces 257 kW (350 hp) ; in the 911 Carrera S models, the 3.8-litre engine develops 294 kW (400 hp). All variants are equipped with direct fuel injection (DFI) and VarioCam Plus for increased power and comparatively low fuel consumption. On the 911 Carrera all-wheel-drive models, the enhanced Porsche Traction Management (PTM) distributes the power to the wheels according to weather and road conditions. Handling is even more poised, particularly when the car is being driven to its limits. As a result, you are safer not just in the wet and snow, but also when adopting a sporty driving style. The chassis is also packed with forward-looking technology. Fitted as standard in the 911 Carrera S and 911 Carrera S Cabriolet, Porsche Torque Vectoring (PTV) increases dynamic performance. Available as an option for the S models, Porsche Dynamic Chassis Control (PDCC) improves dynamic performance further still. Dynamic engine mounts, available as an option for all models, provide perceptibly more precise handling - and not just when cornering. The 911 has a lightweight composite construction in aluminium and steel. Used extensively and in just the right places, lightweight aluminium improves fuel economy and dynamic performance and helps to achieve an excellent weight to power ratio of 4.7 kg/kW (3.5 kg/hp) for the 911 Carrera S, for example.
