Topic: Diablo Mining Company - page 43. (Read 96474 times)

Thats not what wolfram alpha thinks.

http://www.wolframalpha.com/input/?i=tons%20of%20heat%20to%20kwh

I think you missed a digit. To cool a 100kW load you would need around 28-29 tons of cooling. I might have missed a note about this somewhere in the wall of text, just thought I'd let you know this though. Cooling 100kW with a/c is not cheap.

(Update: I had the cooling factor wrong, lets try this again)

Lets get back to the subject of the green facility.

Geothermal heat pumps are a combined heating/cooling system that dumps heat into the ground and take it back out in the winter (presumably for heating, although nothing stops you from just using it as a heatsink only, and dumping the heat from the system outdoors in the winter).

Around here, ground temperatures 4 feet deep (approximately the frost line) peaks at 50f, or about 40 degrees below air temperature in the hottest of the summer, and drops down to 20f or about 10 degrees above air temperature in coldest of the winter.

To cool the facility for the 3 hottest months of the year (July, August, September) and given 100kw (or twice what the plan calls for) for the facility and 1 ton of heat is 3.5kw, we would need 29 tons of cooling, and factoring in cooling loss/heat gain through the building itself and peak efficiency of a unit is around 3/4ths of its maximum capacity we need about 40 tons. The other 9 months can be cooled effectively using just minimally conditioned air exchange. 8 hours a day of cooling is assumed. Also, $0.10/kwh electricty is assumed.

Cost of air exchange system and ducting is not included, and would be identical for any of the cases. Also, this represents the absolute worst case scenarios for each, actual cooling costs should be much less. These numbers are very rough, and probably slightly wrong.

EER: Energy Efficiency Ratio, or the efficiency of the system at 95f outside temp and 80f inside temp.
EER to kW/h per ton: 12000 BTU/h / EER / 1000

Standard air conditioning
Large scale high efficiency (13 EER) commercial air conditioning is about $800-1000 and 930 watts per ton.  For the three months of summer, that would be about 670 kwh per ton, or about $67.00.

Total cost of ownership for 10 years per ton is $1570, or $62800 for 40 tons.

Vertical closed loop, horizontal closed loop, horizontal closed slinky loop
A typical vertical closed loop geothermal pump drilled 125-250 feet down (250-500 feet of pipe) would sink one ton to two tons of heat. It costs about $3 per foot for the complete cost of drilling and piping, or $750 per ton.

A typical horizontal closed loop geothermal pump is done using 6 foot deep ditches with solid copper coils to distribute the heat. 150 foot long 3 foot wide installations of coils (about 600 feet of copper coil) with 3 feet in between them, and can sink 1 ton of heat. Installation cost is about $1500 per ton.

A typical slinky loop geothermal pump is done using 4-6 foot deep ditches with slinky loops to distribute the heat. 1000 feet of loop sinks 1.5 tons of heat, and are put in ditches 150 foot long and 3 foot wide (or about 1.5x more per surface square foot than copper coils), with 3 feet in between ditches. It costs about $1300 per ton.

The pump costs about $900 per ton, but efficiency goes up to at least 21 EER, so 572 watts and about 411 kwh per ton for the three months of summer, or about $41.10.

Total cost of ownership for 10 years per ton for vertical is $2061, or $82440 for 40 tons
Total cost of ownership for 10 years per ton for horizontal is $2606, $112440 for 40 tons
Total cost of ownership for 10 years per ton for slinky is $2611, $104440 for 40 tons

I'm not going to consider closed loop geothermal pumps because they tend to form leaks around pipe joints and leak all their refrigerant away, especially in northern regions that get significantly cold.

Evaporative cooling
At least one company makes an evaporative cooler that does not humidify the air and runs at 40+ EER and uses about 300w per ton and costs about $1200 per ton. That'd be about 216 kwh for the 3 months of summer, or $21.60.

Total cost of ownership for 10 years per ton is $1416, or $56640 for 40 tons.

However, evaporative cooling does not perform well in humid weather, and although Maine doesn't get like, say, Florida does, its enough to decrease the efficiency of the systems.

So who wins?
Surprisingly, standard AC, assuming any of these numbers are realistic. Even over the whole green battle, I can just install more solar/wind to compensate.

Now, since we're already installing solar and/or wind, heres the numbers for standard AC with solar, assuming the cost of 670 kwh of solar (spread out over the whole year, using 1200kwh per 1kw of panel) is $391:

Total cost of ownership for 10 years per ton is $1291, or $51640.

Now, as I stated above, this would be for 100kw, or twice what we need. I specifically ran the numbers for such in the case we start renting out excess space (which I really want to do). If I want to meet the $150k soft estimate, the building and land is going to have to cost around $100k.

I think I need some sort of transnational popcorn manufacturing business.

Edit: I don't think he meant to say I'm the largest, just that I will be the largest. At 1+ thash, that really is true, unless its a stealth farm, I'm not aware of anyone larger.

If that's the only "PR fiasco" Diablo has to deal with, he's looking quite dandy. Deathbylollipop's videos are just hilarious. I really doubt anyone pays serious attention.

You really have to shut this guy up..  http://www.youtube.com/watch?v=ol2STodQCQI&feature=plcp

He is making you look stupid, as well as himself (which seems par for him anyways).

He is calling YOU the largest farm currently in existence etc, etc.

If you are happy being associated with this scammer, great....

I've added Red Star Mining (RSM) to the swap list.

Ive added the sizes of the companies to the trade script.

Using those numbers, we're bigger than 007, ABM, JAH, and FPGA.CONTRACT, but not JLP-BMD.

No, opposite. I require people to trade in more bonds to get the same number of DMC than before. So, if you had 2 bonds of 1mh each, I would trade 1 DMC to you. You now need 2 and a quarter bonds to get the same 1 DMC, and next month you will need 2 and a half bonds to get the same 1 DMC.

doesn't that cause dilution to your earlier investors?

Congrats, Diablo!

Happy Dividend Day!
Today marks the first half a month of Diablo Mining Company's existence.

Shares sold to date: 1804
Dividends paid out today: 10.132855645 BTC
Dividends per share paid out today: 0.00561688228658537 BTC
Dividends that would have been paid out today if it was a full month: 0.0112337645731707 BTC

Dividends paid out all time: 10.132855645 BTC
Money uninvested: 0.79785902 BTC

Shares held:
97 TYGRR-TECH (7.6 mhash) = 203.70 BTC (737 mhash)
661 BMMO (1 mhash) = 231.35 BTC (661 mhash)
715 BTC-MINING (3.63 mhash) = 715.00 BTC (2595 mhash)
9 007 (1 mhash) = 2.61 BTC (9 mhash)

Total investments: 1152.66 BTC
Total hashing power: 4002 mhash (equivalent to 0.45 mhash/$)

Announcements:
Starting today, I am changing the "bonds for DMC" deal. Before I was trading 2 mhash in bonds for 1 share of DMC, now it will be 2.25 mhash per 1 share of DMC. Next month I will be changing it to 2.5 mhash per 1 share of DMC.

The bond trading chart is available at http://caspar.adterrasperaspera.com/dmc/trade/

I won't be doing that overnight, obviously, and it may be quite some time before I decide to do that.

will be fun times when you decide to cash out of these swaps ))

Hey guys, I was just looking at the other mining companies on GLBSE.

DMC, at 3.5gh, is bigger than 007 (0.80gh), ABM (0.83gh), JAH (2.5gh), FPGA.CONTRACT (2.8gh), and JLP-BMD (3.36gh), and we're closing in on YABMC (5gh) and TYGRR.BOND-A (5gh).

Fuck yeah.

I've updated the bond swap table script. It now reacts in real time over bid/ask to adjust what I'm offering.

I've moved the bond swap table to its own dedicated Perl script: http://caspar.adterrasperaspera.com/dmc/trade/

Don't do it man. Can't you see that this is a scam? The highest bid for DMC is 0.00000001! Great way to get nothing for something.
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Pff.

Diablo might be a nerdy twat but he's definitely not a scammer.

I've added 007 to the swap list.

Yeah I already saw that. I'm going to see it when I believe it. There has been several attempts at ASICs, all of them failed except for ArtForz's, and he wasn't too happy with his attempt.