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I have natural shale, most of it underground but near the surface. Some weathered and on the surface. That's very common, of course. But it's also in a location where a small kiln and truck access could be made pretty easily, so I was wondering if it is feasible to think of making my own...

I have a great deal of shale ... Has anyone ever heard of onsite processing of expanded shale? It might be useful in improving the very heavy silty clay loam elsewhere on the property.

Thanks for the answers .. and that "Unlimited" part is why I'm asking, and proceeding with caution. The floodplain, in this case, is identified and closer to the stream. The vegetation is to my eye not wetland plants, but the soil is definitely wet. The area upslope from the sawmill used...

On a site in eastern US mountains, there was a sawmill for many years (35?). The operation was placed on level land between a fairly steep slope and a stream. It spread about 1000 feet parallel with the stream. In addition, another 500 feet down stream was used for a sawdust spread area...

Thank you, Shmulik, too!

Thank you! Wow, very complete and much appreciated.

Most of the ideas proposed have to do with AC ... in MA you are probably more concerned with heating. 20,000 btu/hr seems minimal, and probably too small, to me, but numbers like 500 BTU/hr/ft2 * 1500 ft2 = 750,000btu/hr are way too large. Your local library probably has do-it-on-paper...

iainuts, thank you for the details ... I think I must have been typing a response to I2I while you were typing yours. I'm going to be studying ....

I2I, that's probably true ... just not sure how to enter the right conditions. When I get an isobaric chart of temperature vs enthalpy, it looks like one of the lines of the figure you posted. But the chart of Saturation properties does not: it shows enthalpy of liquid going up on the left...

Thanks for the nist free reference. It is indeed awesome, and I'll have to try REFPROP soon. BUT: The CO2 enthalpy for vapor does seem to change at around 248 deg K , rising with temperature up to 248 and then falling. According to the NIST table, at 247K it's 19.234kJ/mol; at 248K...

Thank you, David ... that's enough to get me going again to figure out the readings. Now I just have to find a better co2 table ... looks like the nist information is by subscription only, which I'm not ready to do yet ...

1. Be kind, first post by engineering school dropout, now entrepeneur. 2. I'm working out a power-required calculation for a CO2 refrigerant heat pump. Consulting an old Handbook of Engineering Calculations by T.G. Hicks, I find he derives power requirements for the compressor from the...