Recent content by RyanS1

  1. R

    Heat transfer theory

    Interesting. So the heater I linked must be relying on a really low air flow rate?  http://www.hmc-products.com/fotos/image/VARIA/Varia/0021-7000a/MANUAL%20USER/0021-8001a-0102a.pdf  being a 40mm fan at low speed. I actually have it running at the moment and about 8cm away you can barely feel...
  2. R

    Heat transfer theory

    Thanks. I'm not sure if I'm applying this formula correctly but using this fan as an example: http://www.gelidsolutions.com/products/index.php?lid=2&cid=5&id=28&tab=2 Flow rate is 27 CFM == 12,740 cm3/s  minimum room temperature is usually 20C I want to raise by 35C to get 55C...
  3. R

    Heat transfer theory

    Hi, I'm new to the forum, and I'm a beginner into electronics. I'm trying to design a small fan heater using an 80mm PC fan and a nichrome wire heating element. It will be used as a hand warmer for bad circulation. I have a similar device which uses a 40mm fan, a commercial product that is very...
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