Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Electronics, Lighting, & Gadgets HRM, GPS, MP3, HID. Whether it's got an acronym or not, here's where you'll find discussions on all sorts of tools, toys and gadgets.

Reply
 
Thread Tools Search this Thread
Old 03-06-08, 01:08 AM   #26
Thirstyman
Senior Member
 
Join Date: May 2007
Location: New York metro area
Bikes:
Posts: 458
If I offended anyone with my satire I must be doing something right.[/QUOTE]

Only offended by your grammer and spelling.
Thirstyman is offline   Reply With Quote
Old 03-06-08, 01:18 AM   #27
Mr York
Senior Member
 
Mr York's Avatar
 
Join Date: Feb 2008
Bikes:
Posts: 197
You mean grammar right ;-)
Mr York is offline   Reply With Quote
Old 09-25-09, 03:51 PM   #28
oliverb
Junior Member
 
Join Date: Sep 2009
Bikes:
Posts: 7
I built this generator last winter. http://www.brettoliver.org.uk/bicycle_generator.htm from plans off the net.

I got fed up with the regular power cuts we get. The generator is designed to keep my gas central heating boiler electrics running so I at least get some heat and hot water while the power is out. Can also be used for my laptop and internet too.

The inverter is powered from the battery and is topped up by the bike charger.
oliverb is offline   Reply With Quote
Old 09-25-09, 04:01 PM   #29
AEO
Senior Member
 
AEO's Avatar
 
Join Date: Jun 2007
Location: A Coffin Called Earth. or Toronto, ON
Bikes: Bianchi, Miyata, Dahon, Rossin
Posts: 12,258
__________________
Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
http://sanfrancisco.ibtimes.com/arti...ger-photos.htm
AEO is offline   Reply With Quote
Old 01-17-14, 10:51 AM   #30
hillcrawler
Senior Member
 
hillcrawler's Avatar
 
Join Date: Jun 2012
Location: Turkiye
Bikes:
Posts: 346
If strava datas are anything to go by, a Professional cyclist can generate an average of 300-350W throughout a 200 km course. Sprinters like Greipel can peak out at 1.300-1.400w momentarily during a sprint.

Last edited by hillcrawler; 01-17-14 at 12:51 PM.
hillcrawler is offline   Reply With Quote
Old 01-17-14, 11:42 AM   #31
Road Fan
Senior Member
 
Road Fan's Avatar
 
Join Date: Apr 2005
Location: Ann Arbor, MI
Bikes:
Posts: 12,231
Quote:
Originally Posted by Photosmith View Post
100-200 watt/hour for an sustainable level, 500+ peak for very short bursts of 20 seconds to a few minutes depending on fitness level. This means if you cycled on your generator for a whopping two full hours at a nice 160 watt clip, you'd generate 0.32 kw/hour of electricity. You'd likely burn something like 1000 Calories in the process. I can imagine you'd spend at least a few dollars to eat enough food to replenish the 1000 Calories burned. On the other hand, here in Arizona electricity costs about 10 cents per kw/h, so you're looking at it costing you around 3.2 cents.

If you were thinking more of an off-grid setup, you can do a 160 watt/hour solar panel with inverter and battery backup and stuff for something like $1000 and have a generator that produces power for 4+ hours a day, plus battery backup, for no further investment. Humans really aren't very cost effective power generation stations.
I'd think a moving cyclist can produce more power on a sustained basis than a stationary one, based on available cooling. The body can't produce as much power when overheated as it can when well-cooled. Check out "Bicycling Science" by Wilson, published by MIT Press.
Road Fan is offline   Reply With Quote
Old 01-17-14, 12:56 PM   #32
caloso
Packfodding 3
 
caloso's Avatar
 
Join Date: Jul 2002
Location: Sacramento, California, USA
Bikes: Ridley Excalibur, Gazelle Champion Mondial, On-One Pompino, Specialized Rock Hopper
Posts: 33,482
Here is a data point. I am a 46 year old Cat 3. Currently my FTP (that is my 60' avg max power) is 275w and my absolute max is 1325w. These are pretty so-so numbers for racers.
caloso is offline   Reply With Quote
Old 01-17-14, 03:13 PM   #33
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 18,086
But can you power a 100 watt 110volt Load? running a dynamo generator,
to light a bulb like you have in your house?
fietsbob is offline   Reply With Quote
Old 01-17-14, 04:14 PM   #34
davidad
Senior Member
 
Join Date: Feb 2009
Bikes:
Posts: 4,803
Eddy Merckx averaged about 469 watts for an hour when he set the record.
davidad is offline   Reply With Quote
Old 01-18-14, 07:57 PM   #35
Winfried
Senior Member
 
Winfried's Avatar
 
Join Date: Aug 2011
Location: Paris, France
Bikes:
Posts: 1,143
Quote:
Originally Posted by BIG-E View Post
I want to build a pedal powered generator. Does anyone know how many watts a good fit cyclist can produce? Both peak and steady.
Not nearly enough to get over peak oil.

"How much of a slave master am I?"
http://www.manicore.com/anglais/docu..._a/slaves.html
Winfried is online now   Reply With Quote
Old 06-10-14, 03:26 PM   #36
dwmckee
Senior Member
 
dwmckee's Avatar
 
Join Date: Jun 2008
Location: Pittsburgh, PA
Bikes: Co-Motion Cappuccino Tandem, Jamis Xenith Race,'88 Bob Jackson Touring Bike (I love this one best), Co-Motion Cascadia Touring Bike, Salsa Fargo, Burley TAB
Posts: 1,471
Quote:
Originally Posted by jeff-o View Post
Which is why The Matrix made no sense to me. Just kill all the humans, and install ground source heat pumps everywhere.

Back on topic: yeah, 100-200W is about right. Considering the speeds you can reach with such a small amount of power (compared to a car), it makes a cyclist a very efficient mode of transport.
It might be better to install all of the ground heat pumps BEFORE you kill all of the people...
dwmckee is offline   Reply With Quote
Old 01-23-16, 08:20 PM   #37
Tyler Torrey
Newbie
 
Join Date: Jan 2016
Bikes:
Posts: 1
I am chubby at 5'11" and 207 pounds and I can sustain an average of 250 watts for an hour. I guess my legs are just naturally strong. Too bad I'm not naturally skinny.
Tyler Torrey is offline   Reply With Quote
Old 01-24-16, 10:49 AM   #38
chasm54
Banned.
 
Join Date: May 2010
Location: Uncertain
Bikes:
Posts: 8,657
[video=youtube_share;S4O5voOCqAQ]http://youtu.be/S4O5voOCqAQ[/video]
chasm54 is offline   Reply With Quote
Old 01-24-16, 11:07 PM   #39
dwmckee
Senior Member
 
dwmckee's Avatar
 
Join Date: Jun 2008
Location: Pittsburgh, PA
Bikes: Co-Motion Cappuccino Tandem, Jamis Xenith Race,'88 Bob Jackson Touring Bike (I love this one best), Co-Motion Cascadia Touring Bike, Salsa Fargo, Burley TAB
Posts: 1,471
Quote:
Originally Posted by DanteB View Post
I did a double century last month and avg. 215 watts for 12:46. Last weekend's ride was 253 for just under 3 hours.
I am just curious, is that average while pedaling only. or does it include coasting time in the average?
dwmckee is offline   Reply With Quote
Old 01-25-16, 11:03 PM   #40
gregf83 
Senior Member
 
Join Date: Jun 2008
Location: Vancouver, BC
Bikes:
Posts: 7,192
Quote:
Originally Posted by dwmckee View Post
I am just curious, is that average while pedaling only. or does it include coasting time in the average?
You might need to wait another 8 years for an answer...
gregf83 is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 08:49 AM.