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G. David Felt

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Everything posted by G. David Felt

  1. And some say this is the new standard of the world? ? No wonder they are breaking the company up into 3 new independent divisions.
  2. Harley is an overrated product for the most part, I am excited by the Live Wire electric bike, but wonder what they will charge for it.
  3. @ccap41 Dogs are awesome, you cannot go wrong with them.
  4. ? By the over kill of info, the questions about Thermal Management, bringing back the name badge TriPower...........
  5. Really liked this one covering Thermal Dynamics in using waste heat from the engine to reduce fuel consumption by 4% and controlling oil temperature. https://www.asme.org/engineering-topics/articles/automotive/using-waste-engine-heat-in-automobile-engines WOW @Drew Dowdell I always find new and interesting things when questions like yours are asked.
  6. I was also wondering this and as I looked around found the following info to be informative: https://www.jcmmachineandcoatings.com/thermal-management/ Thermal management, as it applies to an internal combustion engine, is the idea of controlling heat and friction in order to attain the maximum performance, fuel economy, and longevity through the use of ceramic coatings. This is done through the use of thermal barriers, thermal dispersants, and dry film lubricants. Each of these categories is explained in detail in their corresponding pages. To fully understand the idea of thermal management, you must have an understanding of the first two laws of thermodynamics, they are as follows: 1st law - The law of conservation of matter and energy - Matter and energy cannot be created or destroyed, only changed. For example when you burn a piece of paper, it is not gone; it has changed into ash and smoke. 2nd law - This law states that heat has direction, it moves from an area of a large amount of heat to an area of a low amount of heat in order to achieve thermal equilibrium. Just as a hot cup of coffee cools off, the high amount of heat in the coffee is released into the surrounding atmosphere. Another example is an ice cube melting; in this case the heat in the atmosphere is absorbed by the ice and cool water to become the same temperature as the surrounding air. Good Read as presented on this subject from Clemson University. Advanced Thermal Management for Internal Combustion Engines.pdf SAE has a document they sell on this exact subject for maximizing engine performance. https://www.sae.org/publications/technical-papers/content/2006-01-1232/ Advanced Thermal Management for Internal Combustion Engines - Valve Design, Component Testing and Block Redesign Advanced engine cooling systems can enhance the combustion environment, increase fuel efficiency, and reduce tailpipe emissions with less parasitic engine load. The introduction of computer controlled electro-mechanical valves, radiator fans, and coolant pumps require mathematic models and real time algorithms to implement intelligent thermal control strategies for prescribed engine temperature tracking. Smart butterfly valves can replace the traditional wax-based thermostat to control the coolant flow based on both engine temperature and operating conditions. The electric water pump and radiator fan replace the mechanically driven components to reduce unnecessary engine loads at high speeds and provide better cooling at low speeds. However, implementation of electro-mechanical actuators including the alternator and electrical storage devices introduces inefficiencies in mechanical to electrical energy conversion (and electrical to mechanical energy conversion), which may require increased fuel consumption over pure mechanical components. Empirical models can provide realistic component data used in simulation tools during the development process, and also define the basis for cooling system control algorithms. In this paper, a general framework to derive these empirical models is investigated for thermal management systems where the engine temperature must be accurately controlled in both steady state and transient operation. The evolution of automotive cooling systems also requires a paradigm shift in the engine block design. The design changes include isolated cylinder water jackets, temperature sensor arrays, and distributed smart valves to enable distinct cylinder-by-cylinder temperature maintenance for optimum combustion. This paper explores the introduction of a ‘coolant rail’ to accommodate specific cylinder temperature control defined by an on-demand cylinder dependent cooling strategy. WOW, ? SAE even has a paper on Modeling of an Electric Thermal Management system https://www.nrel.gov/docs/fy15osti/63419.pdf Very interesting info on thermal management fluid loops for EV auto's batteries, cooling and heating systems.
  7. As the war continues so does the world feel the pain! https://www.reuters.com/article/us-global-economy/global-factory-growth-slowing-china-u-s-trade-war-biting-idUSKBN1KM3HG
  8. OUCH, Global is feeling the tradewar. https://www.reuters.com/article/us-global-economy/global-factory-growth-slowing-china-u-s-trade-war-biting-idUSKBN1KM3HG
  9. Wow, that is some ugly numbers.
  10. Fiat keeps crashing and Alfa, gets a temp boost due to their CUV, but after the shiny new kid on the block dules, it will join Fiat in crashing again just like past history.
  11. Wonder if they are using GORE Insulation to deal with the Thermal management. We are at Dell. Watch at 1:48 if you want to see the thermal capabilities of Gore Insulation.
  12. Nice looking car, I like the interior of the car. The exterior, I am just not a fan of all things Bling'd out. Maybe if it was black chrome rather than pearl nickel. Nice but not sure if I would spend the money on this. I am more of a monochromatic buy.
  13. Gotta Love the Manta Ray
  14. Gotta Love this Electric Bike
  15. Only Yamaha has ever had a silky smooth V-Twin I would consider. Harley's are just too much vibrations rocking along with noise.
  16. Agree, I have honestly thought if it was not for our second depression in 2007 when GM went bankrupt and Ford leveraged everything to the sky, Ford would have bought up GM's controlling stake in Subaru. Good match I think. All things Utility car married to all things Utility Truck / SUV.
  17. Ya know that a Ford badge would fit in the same place and people would think it was the second coming of Jesus from Ford Motor Co.
  18. Seems Harley Davidson is showing off their new lineup of bikes including their new EB line or Electric Bikes. https://www.autoblog.com/2018/07/30/harley-davidson-pan-america-streetfighter-cruiser-concepts/#slide-7386686 This is their new Pan America 1250 bike, picking up where deceased Buell Ulysses left off according to the story. Evolved Live Wire bike Electric off road bike concept Harley is considering a electric mountain bike.
  19. Tiny car, built by tiny people for tiny people.
  20. ? Are they wanting to be a Luxury auto brand or not? Makes no sense to drop the Black label from a version of their auto's if they are trying to be an exclusive luxury auto company. Imagine the loyal Lincoln buyer. Buyer 1 - Hey I see you have a brand new 2019 MKZ, is that a Black label like my 2018? Buyer 2 - Um, no it is their top of the line 2019 MKZ Reserve II. What do you get with the black label? They did not have it available when I bought? Buyer 1 - My Black Label gives me "membership privileges" such as 4-year maintenance plan, and getting special access to events and restaurants. Buyer 2 - O'h that would be nice. How much did you pay for yours? Buyer 1 - I paid X amount for a Black label Reserve II, How about you. Buyer 2 - Ummmmm, I also paid X amount but I did not get any of those features. ............... Now that I wrote this up, I double checked pricing and I see that prices are $3,000 higher for the top end line without the black label features. WOW, did Lincoln screw the pooch on this one. https://www.nadaguides.com/Cars/2018/Lincoln/MKZ/Black-Label-AWD/Pricing So a 2018 fully loaded Black Label MKZ AWD is $47,812 So a 2019 fully loaded Reserve II MKZ AWD is $51,740 This so does not make sense to me. ?
  21. Makes total sense with Toyota expanding their Hydrogen options that they would have a commercial van running on hydrogen even though it is a floating idea that Drew through out there. Toyota should pay Drew for the idea of a hydrogen commercial van.
  22. Gotta love dog toys and what they come up with. The Dognald! https://barkshop.com/items/the-dognald Great other dog products too, but check out the Pics from the Pack of various dogs chewing on Potus.
  23. CVT sucks and as such this auto will never be on my to consider list. Sad as there is much I do like about the Subaru products. CVT Burned makes it a nonstarter for me on any OEM.
  24. Got it, totally zoned on the business garage and that makes even more sense. I wonder what ever happened to Honda and their Home Garage fueling station that was all the rage in 2007. http://www.hydrogencarsnow.com/index.php/home-hydrogen-fueling-stations/ Now I will say I like this company's products: http://www.hydrogenhouseproject.org/index.html They have a Solar Hydrogen Fuel Cell electric lawn mower, Solar Hydrogen Fuel Cell Off-road EV, the cool part is the portable Joule box that can be used to keep your house fully in the power. Check it out. Sadly, while there was allot of concepts for home Hydrogen fueling, it has all died out due to EVs. I could only find the company above that seems to be building a unit that could be used for home fueling. Questionable if in my lifetime. All the rage in 2007 to 2012 and now dead compared to EV. So it will be interesting to see how Toyota gets this jump started as it is going to cost companies that go this route some big dollars to have hydrogen fueling equipment in places that their fleet can access and use it.
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