|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
23 W, 17000 CBCP light for my experimental bike
Hello, alt.mountain-bike readers.
I have read about the superior Lupine Edison series of lights. I have been working on an experimental bicycle aiming for a battery-free night century ride. My current setup is Lightning Thunderbolt recument and an EV Wilderness 600 W, 36 V brushed, gearless front hub motor/generator with six Maxwell Technologies PC 2500 2700 farad ultracapacitors rated 2.5VDC and a Samlex sine wave inverter rated 150 W. I have a compact fluorescent light on a bit of track under the boom but it's not wired yet. I have researched GE's new Ceramic Metal Halide lights and find the PAR 30, 20W light just might be suitable for mountain biking or a night century. There is a track lighting fixture available to take this 20W bulb or a mini 20W bulb. All the CMH bulbs produce some of the best lumens per watt, but the key to road use seems to be Center Beam Candle Power, CBCP. This fixture is rated 17,000 plus CBCP. It's used for spotlighting merchandise in upscale retail stores, and in homes as an accent light. The mini 20W fixture with integrated electronic ballast from Aromat consumes 23 W and the inverter idles at 6W. A 25W inverter would idle at only 2W. Bearing drag on the hub is around 3W at 8 mph. Motor/generator efficiency is lower than I had thought; there are many ways to test it, and all take physics lab work, which I don't have access to, so I just coast down local hills and see how the charge on the ultracapacitors comes out. I am going for a ride now; it's almost dawn. I think soon I will be ready for my night century. Just thought I would drop by and ask if there are any riders in the DC area who would like to try a night century. Maybe a metric century to start. Also, do any of you know CBCP ratings for any MTB lighting system? Doug Goncz Replikon Research Seven Corners, VA 22044-0394 |
Ads |
#2
|
|||
|
|||
23 W, 17000 CBCP light for my experimental bike
The Dougster wrote:
Hello, alt.mountain-bike readers. ??? |
#3
|
|||
|
|||
23 W, 17000 CBCP light for my experimental bike
The Dougster wrote:
Hello, alt.mountain-bike readers. I have read about the superior Lupine Edison series of lights. I have been working on an experimental bicycle aiming for a battery-free night century ride. My current setup is Lightning Thunderbolt recument and an EV Wilderness 600 W, 36 V brushed, gearless front hub motor/generator with six Maxwell Technologies PC 2500 2700 farad ultracapacitors rated 2.5VDC and a Samlex sine wave inverter rated 150 W. I have a compact fluorescent light on a bit of track under the boom but it's not wired yet. I have researched GE's new Ceramic Metal Halide lights and find the PAR 30, 20W light just might be suitable for mountain biking or a night century. There is a track lighting fixture available to take this 20W bulb or a mini 20W bulb. All the CMH bulbs produce some of the best lumens per watt, but the key to road use seems to be Center Beam Candle Power, CBCP. This fixture is rated 17,000 plus CBCP. It's used for spotlighting merchandise in upscale retail stores, and in homes as an accent light. The mini 20W fixture with integrated electronic ballast from Aromat consumes 23 W and the inverter idles at 6W. A 25W inverter would idle at only 2W. Bearing drag on the hub is around 3W at 8 mph. Motor/generator efficiency is lower than I had thought; there are many ways to test it, and all take physics lab work, which I don't have access to, so I just coast down local hills and see how the charge on the ultracapacitors comes out. I am going for a ride now; it's almost dawn. I think soon I will be ready for my night century. Just thought I would drop by and ask if there are any riders in the DC area who would like to try a night century. Maybe a metric century to start. Also, do any of you know CBCP ratings for any MTB lighting system? Sorry, we're not really overnight bent century geeks here. There are a few 24 hour freaks here but they ride real bicycles. Greg |
#4
|
|||
|
|||
23 W, 17000 CBCP light for my experimental bike
G.T. wrote:
The Dougster wrote: Hello, alt.mountain-bike readers. I have read about the superior Lupine Edison series of lights. I have been working on an experimental bicycle aiming for a battery-free night century ride. My current setup is Lightning Thunderbolt recument and an EV Wilderness 600 W, 36 V brushed, gearless front hub motor/generator with six Maxwell Technologies PC 2500 2700 farad ultracapacitors rated 2.5VDC and a Samlex sine wave inverter rated 150 W. I have a compact fluorescent light on a bit of track under the boom but it's not wired yet. I have researched GE's new Ceramic Metal Halide lights and find the PAR 30, 20W light just might be suitable for mountain biking or a night century. There is a track lighting fixture available to take this 20W bulb or a mini 20W bulb. All the CMH bulbs produce some of the best lumens per watt, but the key to road use seems to be Center Beam Candle Power, CBCP. This fixture is rated 17,000 plus CBCP. It's used for spotlighting merchandise in upscale retail stores, and in homes as an accent light. The mini 20W fixture with integrated electronic ballast from Aromat consumes 23 W and the inverter idles at 6W. A 25W inverter would idle at only 2W. Bearing drag on the hub is around 3W at 8 mph. Motor/generator efficiency is lower than I had thought; there are many ways to test it, and all take physics lab work, which I don't have access to, so I just coast down local hills and see how the charge on the ultracapacitors comes out. I am going for a ride now; it's almost dawn. I think soon I will be ready for my night century. Just thought I would drop by and ask if there are any riders in the DC area who would like to try a night century. Maybe a metric century to start. Also, do any of you know CBCP ratings for any MTB lighting system? Sorry, we're not really overnight bent century geeks here. There are a few 24 hour freaks here but they ride real bicycles. and 1. count it. sounds like my solution to 'how to get a 'bent upstairs' on their NG. couldn't resist. |
#5
|
|||
|
|||
23 W, 17000 CBCP light for my experimental bike
cc wrote, up thread: sounds like my solution to 'how to get a 'bent upstairs' on their NG. couldn't resist. Yeah. That diamond frame over-the-shoulder thing can't be beat, especially with a nice light bike. My next energy bike, using smaller caps, will be shoulder-carry. Sure does give you some options on where to live. Schmoopie and I fight over where to park the damn thing and how to keep a path clear. Is that an article (post) you wrote in rec.bicycles.recumbent titled "How to Get a 'Bent Upstairs", or something like that? I really must look that up. Doug |
#6
|
|||
|
|||
23 W, 17000 CBCP light for my experimental bike
I think I found cc's post in arbr. Made me laugh.
Get wedgified! Haha. Not bad advice, though. Sure is funny how the MTB diamond frame allows use in rough terrain. Not many MTRs. Doug The Dougster wrote: cc wrote, up thread: sounds like my solution to 'how to get a 'bent upstairs' on their NG. couldn't resist. Yeah. That diamond frame over-the-shoulder thing can't be beat, especially with a nice light bike. My next energy bike, using smaller caps, will be shoulder-carry. Sure does give you some options on where to live. Schmoopie and I fight over where to park the damn thing and how to keep a path clear. Is that an article (post) you wrote in rec.bicycles.recumbent titled "How to Get a 'Bent Upstairs", or something like that? I really must look that up. Doug |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Groningen in Holland: 60% of people travel by bike | cfsmtb | Australia | 12 | June 18th 06 12:51 AM |
Tour suggestions for Great Plains (central USA) | Dave Rusin | Rides | 10 | March 16th 06 01:44 AM |
What is the best bike light in the $20 - $50 CDN range? (Approx $13 - $38 USD ) | Zero_Enigma | Mountain Biking | 3 | June 11th 05 12:45 AM |
aus.bicycle FAQ (Monthly(ish) Posting) | kingsley | Australia | 3 | February 24th 04 08:44 PM |
FAQ | Just zis Guy, you know? | UK | 27 | September 5th 03 10:58 PM |