Previous in Forum: Bio Diesal   Next in Forum: Geothermal Power Generation - The sleeping giant?
Close
Close
Close
6 comments
Rate Comments: Nested
Commentator

Join Date: Feb 2007
Location: El Salvador
Posts: 82

solar pannles for cars

02/14/2008 8:16 PM

Any one can advise or offer me solar pannles for my car´s roof, to charge my batteries and save fuel?

__________________
Wheter if you believe that you are right or not, you are right.
Register to Reply
Pathfinder Tags: solar pannels cars
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Guru
Engineering Fields - Control Engineering - New Member China - Member - New Member

Join Date: Sep 2006
Location: CHINA
Posts: 2945
Good Answers: 14
#1

Re: solar pannles for cars

02/14/2008 8:59 PM

I can offer u the solar cell. how much power do u want to buy?

Register to Reply
Commentator

Join Date: Feb 2007
Location: El Salvador
Posts: 82
#5
In reply to #1

Re: solar pannles for cars

02/17/2008 8:52 PM

Only enought for recharging a car´s battery, so the alternator will consume less hp from the motor

__________________
Wheter if you believe that you are right or not, you are right.
Register to Reply Off Topic (Score 5)
Guru
United States - Member - New Member Engineering Fields - Power Engineering - New Member

Join Date: Sep 2006
Location: California, USA, where the Godless live next door to God.
Posts: 4665
Good Answers: 804
#2

Re: solar pannles for cars

02/14/2008 11:27 PM

Batteries for what? Your cell phone, then no problem.

To run the car? Is your car the size of a bus and the weight of a motorcycle? If not, no point in wasting your money. As a quick and dirty example, to attain the power of an average lawn mower (5HP or 3.7kW), you need approximately 600 square feet of a medium efficiency PV system. For a visual, the average 4 door sedan would be 160 square feet. Keep in mind that any motor power less than about 50HP is pretty much useless off of the golf course.So for a 50HP motor yu will need 6000 square feet of solar cell, larger than the average house in Los Angeles! Even if you could afford the best solar cells with twice the efficiency, you still need 3000 sq. ft.

__________________
** All I every really wanted to be, was... A LUMBERJACK!.**
Register to Reply
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#3

Re: solar pannles for cars

02/15/2008 4:40 AM

Now, if it were a boat, that would be different. Boat users habitually use solar and wind capture to trickle-charge their domestic and starting batteries.

With a boat, the features are:

  • Longer distances to, and frequent absences of, grid outlets
  • Lower use/idle ratio compared to a car
  • Higher surface-area-to-starting-power requirements compared to a car.

So for a car, trickle-charging the batteries might prove attractive, though for other reasons like low-use. The fuel saving is insignificant compared to the savings to be gained from adopting other operating factors, like:

  • Correcting the tyre pressures at regular intervals
  • Adopting wussy driving techniques, including driving significantly below the posted speed limit, where it can be done without delaying other vehciles, and partial slip-streaming behing larger vehicles
  • Combining several tasks into one journey

and certainly could not be used as the basis for justifying an investment that will give an attractive payback.

__________________
"Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
Guru
New Zealand - Member - Interested in everything- see my Profile please APIX Pilot Plant Design Project - Member - Member Engineering Fields - Electrical Engineering - Member Engineering Fields - Power Engineering - Member Engineering Fields - Civil Engineering - Member Hobbies - Musician - Autoharp and Harmonica Hobbies - Hunting - Member Hobbies - Fishing - Member

Join Date: Nov 2007
Location: Christchurch, (The Garden City), South Island, New Zealand
Posts: 4395
Good Answers: 230
#4

Re: solar pannles for cars

02/16/2008 5:24 AM

Hello Cuyanausul

If you want to trickle charge your car battery, yes, such chargers are available easily.

Run your heavy vehicle from the solar cells, not at this time.

Perhaps another 10 years of Solar Cell and Fuel Cell development, and a car using four electric wheels, then it may be possible.

As for your present car, unless it is a toy one, no chance, sorry.

Kind Regards....

__________________
"The number of inventions increases faster than the need for them at the time" - SparkY
Register to Reply
Commentator

Join Date: Feb 2007
Location: El Salvador
Posts: 82
#6
In reply to #4

Re: solar pannles for cars

05/28/2009 12:53 PM

Thanks parkstation

Yea, I meant trickle, just to save some fuel

Regards

__________________
Wheter if you believe that you are right or not, you are right.
Register to Reply
Register to Reply 6 comments
Copy to Clipboard

Users who posted comments:

cnpower (1); Cuyanausul (2); JRaef (1); PWSlack (1); Sparkstation (1)

Previous in Forum: Bio Diesal   Next in Forum: Geothermal Power Generation - The sleeping giant?
You might be interested in: Industrial Batteries, Solar Mounts

Advertisement