Welcome to the Solar Collector
Brainstorming and Development Page!


 

Home

Hot Air Collector

Hot Water Project 1

Hot Water & Space Heating

Solar Electric

Solar Construction 101

FAQs

Best Collectors

Simply Solar
Register Calendar Latest Topics
 
 
 


Reply
  Author   Comment   Page 2 of 5      Prev   1   2   3   4   5   Next
stmbtwle

Avatar / Picture

Registered:
Posts: 2,766
Reply with quote  #11 
"It would be easier for you to read the Thermistor and control the PWM board with your Arduino. "

That was my conclusion too though I'd use a DS18B20 sensor instead of a thermistor, I would have more precise control and programming would be easier.

Once the arduino is in the system the possibilities are nearly endless, fan control, vent control, temp readout, etc etc.

__________________
Solar is like the wind. It may be free, but putting it to work isn't!
Willie, Tampa Bay

Rick H Parker

Avatar / Picture

Registered:
Posts: 757
Reply with quote  #12 
Once the arduino is in the system the possibilities are nearly endless, fan control, vent control, temp readout, etc etc.


You could read air speed with a Pitot tube and a Differential pressure transducer.
From that you can calculate flow, BTUs, energy gain .....

__________________
Rick H Parker
Kansas, USA
Electronics Engineering Technologist
stmbtwle

Avatar / Picture

Registered:
Posts: 2,766
Reply with quote  #13 
Even efficiency with a light sensor.

__________________
Solar is like the wind. It may be free, but putting it to work isn't!
Willie, Tampa Bay
Rick H Parker

Avatar / Picture

Registered:
Posts: 757
Reply with quote  #14 
You can make inexpensive Pyranometers but, getting one calibrated without buying a real one ... if you figure out that one let me know.
__________________
Rick H Parker
Kansas, USA
Electronics Engineering Technologist
stmbtwle

Avatar / Picture

Registered:
Posts: 2,766
Reply with quote  #15 
Probably have to buy one. I think mine was about $50. Today they're more.


__________________
Solar is like the wind. It may be free, but putting it to work isn't!
Willie, Tampa Bay
Rick H Parker

Avatar / Picture

Registered:
Posts: 757
Reply with quote  #16 
$50.00 for a Pyranometer or a Pyrometer. A Pyranometer will knock you back $200 - $5000.
__________________
Rick H Parker
Kansas, USA
Electronics Engineering Technologist
stmbtwle

Avatar / Picture

Registered:
Posts: 2,766
Reply with quote  #17 
Whatever...

https://www.chargerbuy.com/drmeter-sm206-digital-solar-power-meter.html

It's good enough for my purposes.

__________________
Solar is like the wind. It may be free, but putting it to work isn't!
Willie, Tampa Bay
Rick H Parker

Avatar / Picture

Registered:
Posts: 757
Reply with quote  #18 
That answers my question.  I never came across a Pyranometer that low priced.
__________________
Rick H Parker
Kansas, USA
Electronics Engineering Technologist
gbwillson

Avatar / Picture

Registered:
Posts: 2,264
Reply with quote  #19 
Could you use a Lux meter? They are inexpensive, and are accurate enough for photographic work.

https://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias%3Daps&field-keywords=light+meter

Greg in MN
stmbtwle

Avatar / Picture

Registered:
Posts: 2,766
Reply with quote  #20 
I imagine you could, but converting the units might be an issue. My meter reads directly in watts/sq meter or btu/hr/sq foot. It's real easy to compare the collector with it.

__________________
Solar is like the wind. It may be free, but putting it to work isn't!
Willie, Tampa Bay
Previous Topic | Next Topic
Print
Reply

Quick Navigation:

Easily create a Forum Website with Website Toolbox.

 

web statistics