Recent content by Avis

Here is a rough drawing of what I'm dealing with. https://www.dropbox.com/s/ywv6ikgpkooc3ib/Photo%2012-11-2013%2C%209%2045%2007%20AM.jpg I would assume No heat loss as bunker inside temperature is equal to bunker exterior temperature. This air comes in from the adjacent area which has...

We call it a bunker on site but a better term would be a silo. It is a metal container which is located inside. It is a safe assumtion that the intitial inside conditions are the same as the incoming air (air is pulled through filtered grates) This is what I've done so far: (leas note I was...

Ok What If i were to have the following conditions. Volume of space: 2200m^3 Temperature: 20°C Initial Relative Humidity: 18% Desired Relative Humidity: 65% Air exhauted from space at: 0.25m^3/s How much water would I have to spray in per hour or second to achieve that humidity level?

Not really following you. So if say at 20°C the vapor pressure is 2.3 kPa how much water per volume do i need?

I have to design a system to increase the relative humidity in a bunker. I would like to use a spray nozzle and service water. How could I determine how much the relative humidity would raiser per volume of water sprayed into the bunker. Known: - Volume of Bunker - Temperature - Initial...

Very Intresting. I will contact the manufacturer! Thanks!

Yes it would work, But I can't find a product that exists.

Unfortunatly they don't deal with dust monitors.

I have been tasked with what seems an almost impossible feat. It sounds simple but for some reason it is not. I am looking for a device that can monitor combustible dust, in this case wood dust from pellets. It must be able to handle concentrations of 50g/m^3. The area to be monitored is a...

Thanks for the help. I'm going to have to go to my Project supervisor for some serious advice. I think I'm in a little over my head.

Trying something different, higher COP, smaller components. Looking to go green. We are realizing however that its a bit out of our league right now. Would you have any resources for designing a heat pump (sizing components and what not) for using R134A as the working fluid?

Nobody has an idea? I am stuck beyond stuck. Havent dealt with this kind of thing before and it hard to find resources.

BRP has electronic reverse on my of there skidoo snowmobiles. It shuts the engine down and starts it up in the reverse direction to allow the snowmobile to back up. Great invention. Lightweight and reliable!

Hey guys, I'm looking at designing a heat pump system that uses CO2 as the working fluid. I'm not exactly sure how to pick the components that I need like a compressor, expansion valve, etc. I am trying to create an experimental device that will work in conjunction with my CO2 thermosyphon...

Exactly high pressure will cause CO2 to liquefy thus at roughly 31 degrees it will change state and evaporate. I am a student and I am building this as part of my degree project. We do not need much. We have a very limited budget. I haven't had any experience in doing this so I'm basically...