I just wanna see your design for cow converters -Kyle
On Tue, Oct 11, 2011 at 11:46 AM, <[email protected]> wrote: > This is almost like an oil thread now. > > I under stand hat in some places we need converters. In the La. area > where they are in a fish bowl. It is almost like running your car in the > garage, even with the door open it is not good for you. > > Mt Saint Helen put more pollutants in the air than all the > automobiles ever built. > > The livestock are the second polluters. Maybe we need to put converters > on them. Humans are number three. Maybe we will have them also. > > Hey holler save the Wales. They eat Plankton by the thousands. Plankton > produce more oxygen than trees. > > It's all about money! > > My two cents. > > rodhall > cb550sc > > > -----Original Message----- > From: Kurt Nolte <[email protected]> > To: nighthawk_lovers <[email protected]> > Sent: Tue, Oct 11, 2011 6:38 am > Subject: Re: [Nighthawk Lovers] Re: emissions - Motorcycle versus car > > I feel that the exposure is the greatest issue, rather than length or > size of exhaust. All catalyzing agents currently in use rely on being at a > certain temperature to even work, and tend to, within reason, improve in > efficiency as their temperature rises. > As such, the relatively high surface area of the catalyst and exhaust > exposed to the air, coupled with a relatively low volume of gases flowing > through especially at idle, no doubt conspire to pull the average catalyst > temperature down. > I wonder if this is partially the reason that exhausts passing under the > seat area have seemingly begun to increase in popularity in recent years? > Placing the catalyst behind the engine, in the warm air wash from the > cooling system versus the cooler outside air, then trapping it in a pocket > of panel and insulation, would undoubtedly improve heat retention. > It is likely that, as emissions regulations become more stringent as they > are often prone to doing, that the field of insulating coatings for exhaust > flows, as well as lightweight insulation and lower temperature catalysts > will be explored. They undoubtedly exist in some form now, but are not at > present cost effective. > Also very likely is open embrasure of variable valve timing and direct > injection, as both are very compact systems that, while complex, can promise > very dramatic improvements in power output, with the salutary effect of also > reducing fuel consumption and emissions. > Kurt > > On Oct 11, 2011 9:30 AM, "Noah Goodall" <[email protected]> wrote: > > There's been some published research on this, and they generally agree > with mythbusters. From the abstract: > > ----------- > Even though the motorcycle, fleet is small in comparison with the car > fleet, and logs lower yearly mileage per vehicle, their contribution > to traffic emissions has become disproportionately high. Exhaust > emissions of CO, HC, NOx, and CO2 from 8 powered two-wheelers were > measured and compared to previous measurements from 17 > gasoline-powered passenger cars performed at EMPA with the aim of > ascertaining their relevance. Using exhaust emission ratios from both > vehicle types, comparisons based on mean unit, mean yearly, and fleet > emissions are considered. Present-day aftertreatment technologies for > motorcycles are not as efficient as those for cars. A comparison of > mean unit emissions shows that motorcycles exceed cars in NOx > emissions. All comparisons reveal a significant HC ratio, to the > detriment of two-wheelers. Overall, the relevance of emissions from > powered two-wheelers is not negligible when compared with modern > gasoline-powered passenger cars. > ----------- > > Here's the listing. I don't have access to the full article. > http://trid.trb.org/view/2006/C/782272 > > Noah > > > On Mon, Oct 10, 2011 at 11:39 PM, Pat Patterson <[email protected]> wrote: > > Bikes have all sorts of p... > > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/nighthawk_lovers?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/nighthawk_lovers?hl=en. > -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en.
