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Messages - BruceM

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Other Slow Speed Diesels / Re: Still at work, original 6 hp Bamford
« on: May 14, 2023, 08:29:02 PM »
Hi Butch,
My health has been poor so struggling to keep up with the basics.  Not much going on to post here.  I did replace my UV wrecked Dorman plastic radiator overflow tank with an aluminum one to keep the Listeroid 6/1 going.

Its fantastic what you've done to restore those Bamfords!

Best Wishes,

Other Slow Speed Diesels / Still at work, original 6 hp Bamford
« on: May 14, 2023, 07:17:30 PM »
Ive been a fan of Bamfords since 38ac first showed one here many years ago.
I ran into this video that others might enjoy.

General Discussion / Re: Next! 16/2 Lister
« on: May 02, 2023, 03:15:50 AM »
Running a line shaft for an Amish wood shop-  What a lovely application for your 16/2 restoration, Butch. 
Lucky woodshop owner!

General Discussion / Re: Electric car question
« on: February 12, 2023, 08:37:14 PM »
+1 on Lister on free fuel plus solar charging an EV.
I enjoyed the Telsa video. Nuts for the noise levels but lots of fun to watch.  Diesel electric trains have long proven that approach.

Lister Market Place (things for Sale) / Re: Metro 6/1 setup and ready to go
« on: February 07, 2023, 04:59:43 AM »
Very sorry to hear you're having serious health problems, 32Coupe.  I hope you'll get a reprieve. 
Best Wishes,

General Discussion / Re: Electric car question
« on: December 27, 2022, 10:20:50 PM »
A generator charger which could do the 4 KW of battery pre-heating on a sub zero morning could be helpful.  I saw a video where a -12F cold soaked Tesla M3 (parked overnight next to the charger) took 40 minutes of 4KW heating before it would then charge the battery.  If the car is garaged and/or kept above freezing, then that's a non issue. 

General Discussion / Re: Electric car question
« on: December 27, 2022, 08:09:31 PM »

This is a bit more current on actual charger/battery losses.... and they are seeing about 20% losses for charger and battery, which is way better than starting at 35%. 

ST head efficiency is more likely around 80% despite the simplicity and high THD. So add another 20% to the 80% for charger and battery losses, and it's still 60% efficiency.

So 6 gallons of diesel for 4 gallons of gas mileage is reasonable.  Cold weather is another story; the present LFP batteries need heating in cold temperatures which eats into the charge power/efficiency dramatically.  But if the fuel is free that isn't a deal breaker.

The 6/1 is pretty small for car battery charging. 
Many Chevy Bolt drivers see 3.7 miles per kilowatt hour.  Assuming 3Kwh per hour of 6/1 charging, 12 hours of charging would be 12x3kwh =36 kwhrs x 3.7= 133 miles.  If you estimate your full load fuel use for those 12 hours at 0.33 gallons per hour thats 5.2 gallons for those driven 133 miles.   133 mi/5.2 gallons= 25.5 mpg using the CS as generator for an EV.

This is consistent with my previous estimate.  The fuel consumption at 0.33 gallons per hour at 3KW is something you can check yourself as this may be off.  Plug in your own number and see what you get.

General Discussion / Re: Electric car question
« on: December 27, 2022, 07:31:08 PM »
You only need to fudge some additional losses over the standard 35% battery/charger losses for additional ST head losses.  So maybe 55% of total losses over direct diesel car use.  You do gain back energy for regenerative breaking, which can be significant for in town driving.

So if you needed 4 gallons of gas for the car's weekly drive,  you should be around 5-6 gallons of diesel. (Used oil.)

Lithium batteries are way higher in charge/discharge efficiency, over 80%; the 65% figure includes this and charger losses.  38ac's range needs are so low that he can easily stay in the highest efficiency range of battery charge.

Charge efficiency improves at lower charge rates, and you will be operating in the higher efficiency range. 

Bronco is thinking this was a lead acid battery?   There is no penalty for partial charges in lithium batteries, only some penalty for full charging some lithium ion/cobalt batteries.  Not so much for LFP.

General Discussion / Re: Electric car question
« on: December 27, 2022, 06:14:24 PM »
I think we are painting a darker picture than is warranted.
Using the same fuel in a diesel engine car will only result in 30% efficiency as well, so the IC engine loss is a wash; you lose it either way so it does not count.

A 65% charge/battery charge combined efficiency is often reported.  So the only question is whether that 35% loss is really a loss considering that the fuel is essentially free.  I'd say so.

This also lends itself to adding some solar so that in sunny parts of the year, the oil can be conserved and CO2 reduction is provided. 

General Discussion / Re: Next! 16/2 Lister
« on: December 03, 2022, 10:44:32 PM »
Brilliantly simple boring bar drive, Butch.  My favorite kind of solution.   

General Discussion / Re: Next! 16/2 Lister
« on: December 03, 2022, 02:05:19 PM »
Very impressive work, Butch. I have recently enjoyed several boring bar and related tool fabrication videos by an Aussie machinist on youtube.  Its a fascinating process that takes a lot of knowledge and skill.

How did you make the drive connection to the slow speed drill motor?

Other Slow Speed Diesels / Re: Bamfords shop work
« on: November 24, 2022, 07:09:35 PM »
What a beauty.   Great that she's going to be a working engine again!

General Discussion / Re: Next! 16/2 Lister
« on: November 17, 2022, 03:30:44 PM »
Is that a gap line showing between liner and cylinder or just shadow from liner not flat and flush? 

Can you use Rajkot parts for a replacement cylinder?

Glad you got a bonus on the valve seats!

General Discussion / Re: Next! 16/2 Lister
« on: November 17, 2022, 01:23:03 AM »
I look forward to your assessment as the project progresses. 

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