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How GM engineers are using diaper 'snow' to keep you warm

Testing how snow affects General Motors' vehicles isn't really a problem right now for the company's engineers, but in the dog days of summer the process isn't exactly easy. The only real option is for them to book time at the automaker's climatic wind tunnel. However, a flash of brilliance from an engineer allows snow to be simulated regardless of the temperature outside, and the discovery is all because of his daughter's wet diaper. The realization came to GM Thermal Systems engineer Nicholas Jahn while he was swimming with his daughter and noticed how her diaper ballooned in size in the water. He found out the substance that makes this possible is called sodium polyacrylate. When the material gets wet it grows and forms fluffy flakes that are a close imitation of snow. Best of all, the stuff can be prepared easily any time of the year, and it's reusable. The engineering team uses the material to test the effectiveness of the heating systems of GM's vehicles. They spread the sodium polyacrylate over the inlets at the base of the windshield to obstruct the airflow and then crank the heater. After some time, they can see how much is being sucked into the system and design more efficient systems in the future. See how the process works in the video above and read about the diaper discovery in GM's press release below. Diapers Change Chevy Cruze Winter Warm-up Time GM validation engineer uses diaper material "snow" to reduce frigid drives 2015-01-06 DETROIT – An item commonly found on an infant's changing table is helping General Motors' engineers simulate snow year round, ensuring heating systems in cars like the 2015 Chevrolet Cruze can quickly and efficiently warm its interior. Packed snow can prevent air from entering the inlet panel at the bottom of the windshield, obstructing the flow of air into the heating system and reducing the amount of air it can push out. This can lead to less efficient warming of the car's interior and windshield defrosting. "The last thing anyone wants to do when it's freezing cold out is scrape their windshield," said Nicholas Jahn, GM Vehicle Thermal Systems engineer. "The testing we perform on the Chevrolet Cruze with the diaper material allows us to maximize the car's heating capabilities." Ironically, Jahn stumbled upon his diaper-based testing method in the middle of summer. During a swim with his daughter, he noticed her diaper multiplied in size when it came into contact with water.

Chevy Gives World Series MVP Madison Bumgarner A Recalled Truck

Last night must have seemed like a dream come true for San Francisco Giants pitcher Madison Bumgarner. He helped his team win its third World Series Championship in four years, earned MVP status and was given a brand new 2015 Chevrolet Colorado. Bumgarner might want to hold off on taking a victory lap in his new truck however. The Colorado is currently under recall. General Motors issued a stop-delivery order earlier this month to fix the truck's air bag connectors, which were wired improperly during the manufacturing process. The faulty wiring can cause the system to deploy incorrectly. Only 138 customers have received their Chevrolet trucks, the rest were caught and repaired either in the plant or on their way to dealerships and show rooms. Recalls Chevrolet world series

Recharge Wrap-up: Indianapolis to switch 425 fleet vehicles to EVs, Chevy Corvette provides bat habitats

Indianapolis will deploy 425 battery electric and plug-in hybrid vehicles as part of its municipal fleet by 2016. The fleet will include such cars as the Nissan Leaf, Chevrolet Volt and Ford Fusion Energi. The city will also reduce its overall fleet by 100 vehicles. In all, the revised group - called the "Freedom Fleet" - will save $8.7 million and 2.2 million gallons of gasoline over 10 years. Read more at Hybrid Cars. EVs with longer range would make vehicle-to-home and vehicle-to-grid energy management systems more practical for the US. The idea of using EVs as energy storage for emergencies or times of high grid demand is currently being tested in Japan with Nissan's Leaf-to-Home system. The US is also interested in such capabilities, but the higher average energy use of American households would make larger batteries in EVs ideal for grid storage applications. Read more at Green Car Reports. LG Chem has broken ground on its EV battery plant in Nanjing, China. The factory, when constructed, will have a capacity of producing batteries for 100,000 cars per year according to the Korean company. The plant will supply batteries for Chinese automakers such as SAIC and Qoros. Construction is expected to be finished by the end of 2015 and LG Chem expects revenue of more than $933 million by 2020. Read more in the press release below. General Motors is using adhesive used in the Chevrolet Corvette Stingray to create habitat for threatened bat species. Artificial bat caves could help alleviate white-nose fungus that leads to diminished bat populations. Leftover adhesive is used to create stalactites in the artificial caves, allowing them more structure to hang from. GM has also provided Volt battery covers to create nesting habitats for bats, which eat harmful insects and help pollinate plants. See the videos and read more in the press release below. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. LG Chem officially breaks ground for China EV battery plant Seoul, Korea - Oct 30, 2014 – LG Chem, Korea's leading manufacturer of advanced batteries, held a ground breaking ceremony for the construction of electric-car battery plant in Nanjing, China, to meet growing demand in the world's biggest car market.