Recent content by AnnArborBuck

A better method is having the fan blow the air up from the bottom while the water falls down from the top. Essentially you want a counter-current flow of water to the air, not a perpendicular flow (think contact time here). That is how swamp coolers work and nuclear power plant coolers work.

I guess I mis understood the question because I thought he RO/DI was not producing enough water. As for your comments to my comments, I agree on most of it. Using an inline heater is not the best option, but the rate an RO operates is tied in fairly heavily with temp. And if you restrict...

The key parameter for the performance of a RO unit is the entering pressure and the temp. Here is a link to see how pressure affects the rate on RO units http://www.gewater.com/library/tp/808_Fundamentals_of.jsp. If you need to boost the performance of you RO unit you can get a pressure pump...

Epsom salt is Magnesium Sulfate. You should be able to find the things you are looking for from an online science store or chemical supply company. I would check with the science stores first as they deal with teachers and may not require you to have a business to purchase.

The only issue with your design using a sheet is that you have a very small surface area. The amount of heat that you can trasfer from the hot side is directly related to the surface error for exhange, the heat transfer coefficient of the transfer barier (titanium in your case) and the temp...

This is a simple heat transfer problem. The first thing you have to do is figure out how much energy you need to remove. That will be the baseline for your cooling system. Figure in house ambient temp, lighting, pumps, etc, etc. From there you will need to use some rather simple heat...

You can get a medo 505 off of ebay for $25 to $30 plus shipping. One Medo 505 is probably as powerfull as 3 Tetra DW96-2 air pumps. There are large medo out there too, but I only have used the 105 and the 505.

ScubaDude has made some tonga looking DIY rock. Here is a link. Tongra Branch Rock I have made some tonga branch rock using a mortar bag. It looks like a large cake decorating thingie, i found it in the cement aisle at HD. I just filled the bag with the mixture and squeezed out long...