Showing posts with label weather. Show all posts
Showing posts with label weather. Show all posts

Sunday, 18 January 2009

Advertisement: New Snow-Making Equipment

If you are one of the many (dozens?) of persons who love the beauty of snow -- and who doesn't down deep inside, really? -- the Royal Society for the Advancement of Knowledge in the Natural Sciences is proud to offer you new SNOW-MAKING EQUIPMENT.

Derived from the still-secret technology behind the Loch Avie Cryogenic Seasonal Support System, this personal-sized snow-making device is IDEAL for use around your home, office, or lair.
This kit offers one water pump, copyable copper piping, and as many copies of the REVOLUTIONARY small-sized snow blower as you care to have.

To complete the effect, which numerous persons have called EXTRAORDINARY, your are provided, gratis, with a pile of manufactured snow, with full mod- and copy- permissions.
In no time at all, the discerning snow enthusiast can push back the forces of nature, and re-claim the charm of winter the whole year 'round!

A demonstration model has been set up in Caledon Tamrannoch where one can MARVEL at this new technological wonder.
This apparatus is offered for the reasonable price of L$ 100, which is roughly $US 0.41, or € 0,31, or £ 0.26.

Why not make this small investment in your PEACE OF MIND, knowing that winter (or some semblance of it) will always be at your fingertips?

Regards,

Kate Nicholas, FRS

http://slurl.com/secondlife/Caledon%20Tamrannoch/121/16/22

Sunday, 29 June 2008

The Tunguska Event at 100.

On June 30, 1908 (NS) *, at 7:14 A.M., a massive explosion occurred in the taiga forest deep in Siberia, near the Tunguksa river, leveling trees up to 30 km away from the centre of the blast, and causing global climatic and geophysical sequelae.



This event has captured the enduring interests of scientists, both professional and laymen, and has intertwined itself in popular culture, science fiction, and conspiracy theories.



The devastation, as recorded by Leonid Kulik during expeditions beginning in 1921, would remain unparalleled until the atomic bombings of Hiroshima and Nagasaki in 1945.

While the immediate effects of the explosion were confined to the swamps and forest within 40-50 km of the centre, the blast caused a number of global atmospheric phenomena, e.g., noctilucent clouds which made it possible to read the newspaper, or take photographs at night, in London. Seismometers read tremors that would register in the 5s on the modern Richter scale, and microbarometers recorded a shock wave that traveled around the globe at least twice before dissipating.

The local tribesmen thought that the wrath of the thunder god Agdy had been brought down by a neighbouring tribe's shaman. Peasant villagers sent a delegation to the local archpriest to ask how the preparations for the end of the world were coming along. Scientists in the European capitals tried to connect the phenomena of the atmospheric and geologic activities.

In this modern day of instant access to all manner of information (I am currently watching lightning-strike data superimposed on a Doppler radar loop, as storms approach from the west), it is hard to imagine that an event of the magnitude of Tunguska could occur without some knowledge of just what happened.

Over the next few days I will be presenting some further discussion regarding the event, which connects to several points of our collective Victorian/steampunk experience.

--
* The local date was June 17 using the so-called "Old Style" Julian calendar. The majority of the west had already adopted the Gregorian (or "New Style") calendar, but the Russians, being, well, Russian and Orthodox, did not take well to innovation, especially innovation coming from the Bishop of Rome. But that is clearly a story for another day.

Friday, 14 March 2008

Failure analysis of the Loch Avie Cryogenic Seasonal Support Engine

Nicholas K, Bellambi E. Failure analysis of the Loch Avie Cryogenic Seasonal Support Engine (CSSE). Proc Royal Soc 1898;3.

Abstract.
The Loch Avie Cryogenic Seasonal Support Engine (CSSE) unexpectedly failed in February 1898, with resultant thermal destabilisation of the terrain. This analysis was conducted to determine the cause of failure, as well as to identify other potential failure modes of the engine. The root cause appears to be geothermal anomalous events triggered by plate tectonic movements. Various preventative strategies are discussed.

Background.
The CSSE was implemented during the current winter season in Caledon to support and enhance the ground and air temperature cooling needed to ensure persistent snow cover (maximum -3.5 degrees Centigrade) and precipitation occurring as snow (maximum -2.2 degrees C.) The system exhibited a meta-effect of allowing shallow-water ice to form to depths of up to 1 metre. (Fig. 1.)





The system was controlled from a certain location within Loch Avie. Electromagnetic relays were used to control various aspects of the system. Coolant temperature, flows, and hydraulic pressure were measured at the control panel. (Fig. 2.)





At various locations around the Loch, coolant pipes were exposed to the water and atmosphere to enable convective heat exchange to occur. Figure 3 demonstrates one such submerged pipe.



Note that the combination of the amount of dissolved solutes and particulate matter in the Loch water have dropped the freezing point to below the coolant temperature, as no ice build-up is seen. (Fig. 3a.)


Figure 4 demonstrates one of the above-ground heat-exchange mechanisms, which were used in tandem with the exposed pipe apparatus used for submersible cooling.

The details of the design of the cryogenic plant itself, and the method for dissipating heat from the system remain classified, as they were commissioned originally for The Security Service (Box 500, Loch Avie, Caledon).

System failure.
During the week of February 21, ambient air temperatures and soil temperatures began climbing by an average of 0.17 degrees C. per day, from their prior stable baselines of -3.5 and -2.2 degrees C. respectively. Snow cover began to dissipate immediately due to solar heating, and new precipitation fell as rain and freezing rain by February 26. By the first week in March, existing snow cover had vanished, and there was no contiguous ice remaining on the Loch.

During the warming event, the cryogenic fluid production remained constant, with nominal temperatures. (Fig. 5.) Readings from the heat dissipation system showed increasingly-warmer effluent.







Flow and pressure monitors recorded no pressure drops or coolant leaks. (Fig. 6.)


Analysis.
The data support that the system encountered increased ambient heat which could not be effectively dissipated, resulting in increasingly less-efficient cooling. While available readings from surrounding areas are scant, the data suggest increased energy deposition into the air, water, and soil. Electromagnetic (EM) sensors did not indicate any change in background EM or radio-frequency energies. Seismic readings, though, showed low-level activity beginning and increasing in a temporally-associated fashion with the warming event. One hydrothermal vent which is routinely monitored indicated increased output of geothermal energy.

Conclusions.
The CSSE failure was a result of its heat-exchanging system being overwhelmed by an unusual increase in hydrothermal energy. The increase in seismic activity in the area is the most likely etiology. The CSSE operated as designed, without any loss of system integrity . Based on the system design, and the observed mode of failure, the CSSE failed safely. The design could not have been modified on-line to accomodate the increased need for heat dissipation. The authors recommend that the system, now off-line, be re-engineered to increase heat transfer and dissipation, and that seismic monitoring be instituted to allow for better prediction of the need for increased efficiency. Finally, a further study of the unusual seismic events should be undertaken, as the increased geothermal activity provides demonstrable evidence of a change in tectonic interactions.