摘要:
Générateur magnétohydrodynamique comprenant une paire de chambres primaires (1a et 1d) contenant une quantité de fluide conducteur comprenant un métal liquide et chauffé par une source de chaleur. Les chambres primaires (1a et 1d) sont reliées entre elles à leurs extrémités inférieures par un canal comprenant une cellule magnétohydrodynamique, chaque chambre primaire (1a et 1d) étant reliée à une source séparée (42a et 42d) de fluide gazeux actif à travers un régénérateur de chaleur (31a et 31d), par lequel ledit fluide actif est injecté dans le fluide conducteur en une position intermédiaire espacée de l'extrémité inférieure et située sous le niveau du fluide conducteur, ladite injection commençant lorsque le niveau du fluide conducteur dans la chambre primaire (1a et 1d) approche de son maximum et durant la descente dudit niveau. Ledit fluide actif est évacué de la chambre primaire (1a et 1d) en un point situé au-dessus du niveau du fluide conducteur, un dispositif étant prévu pour refroidir et comprimer le fluide actif évacué pour une injection ultérieure dans la chambre primaire, ledit régénérateur de chaleur (31a et 31d) extrayant la chaleur dudit fluide actif évacué et chauffant ledit fluide actif avant son injection dans la chambre primaire (1a et 1d).
摘要:
A method of sinking shafts comprising excavating a series of lifts wherein each lift is excavated by drilling a pattern of blast holes for the full depth of the lift including boring a large diameter hole and creating a chamber at the lower end of the large diameter hole, blasting the walls of the chamber to deposit rock material into the chamber, extracting at least a portion of the rock material created by the blast and repeating the blasting and extraction step throughout the length of the lift wherein on the volume of said lift being blasted the remaining rock broken material is extracted.
摘要:
PCT No. PCT/AU82/00185 Sec. 371 Date Jun. 21, 1983 Sec. 102(e) Date Jun. 21, 1983 PCT Filed Nov. 12, 1982 PCT Pub. No. WO83/01830 PCT Pub. Date May 26, 1983.A solar collector comprising a hemisphere (111) having a reflector internal surface; a caustical concentrator (116) located at the focus of the hemisphere (111) and having a concentrated second focus for radiation reflected onto its surface from said hemisphere, a heat exchanger (120) located at the second focus, said caustical conical concentrator (116) being mounted to rotate about a substantially North-South axis passing through said second focus and being driven by a drive such that with movement of the sun, incident solar radiation is constantly directed at said second focus.
摘要:
A method of sinking shafts comprising excavating a series of lifts wherein each lift is excavated by drilling a pattern of blast holes for the full depth of the lift including boring a large diameter hole and creating a chamber at the lower end of the large diameter hole, blasting the walls of the chamber to deposit rock material into the chamber, extracting at least a portion of the rock material created by the blast and repeating the blasting and extraction step throughout the length of the lift wherein on the volume of said lift being blasted the remaining rock broken material is extracted.
摘要:
PCT No. PCT/AU82/00185 Sec. 371 Date Jun. 21, 1983 Sec. 102(e) Date Jun. 21, 1983 PCT Filed Nov. 12, 1982 PCT Pub. No. WO83/01830 PCT Pub. Date May 26, 1983.A solar collector comprising a hemisphere (111) having a reflector internal surface; a caustical concentrator (116) located at the focus of the hemisphere (111) and having a concentrated second focus for radiation reflected onto its surface from said hemisphere, a heat exchanger (120) located at the second focus, said caustical conical concentrator (116) being mounted to rotate about a substantially North-South axis passing through said second focus and being driven by a drive such that with movement of the sun, incident solar radiation is constantly directed at said second focus.
摘要:
A magnetohydrodynamic generator comprising a pair of primary chambers (1a and 1d) containing a quantity of conducting fluid comprising a liquid metal and heated by a heat source, the primary chambers (1a and 1d) are interconnected at their lower ends by a channel incorporating a magnetohydrodynamic cell, each primary chamber (1a and 1d) being connected to a separate source (42a and 42d) of gaseous working fluid through heat regenerator (31a and 31d), whereby said working fluid is injected into the conducting fluid at an intermediate position spaced from the lower end and below the level of the conducting fluid, said injection being commenced when the level of conducting fluid in the primary chamber (1a and 1d) approaches its maximum and during the descent of that level and said working fluid is exhausted from the primary chamber (1a and 1d) from above the level of the conducting fluid, means being provided to cool and compress the exhausted working fluid for subsequent injection into the primary chamber and said heat regenerator (31a and 31d) extracts heat from said exhausted working fluid and heats said working fluid prior to its injection into the primary chamber (1a and 1d).
摘要:
PCT No. PCT/AU82/00185 Sec. 371 Date Jun. 21, 1983 Sec. 102(e) Date Jun. 21, 1983 PCT Filed Nov. 12, 1982 PCT Pub. No. WO83/01830 PCT Pub. Date May 26, 1983.A solar collector comprising a hemisphere (111) having a reflector internal surface; a caustical concentrator (116) located at the focus of the hemisphere (111) and having a concentrated second focus for radiation reflected onto its surface from said hemisphere, a heat exchanger (120) located at the second focus, said caustical conical concentrator (116) being mounted to rotate about a substantially North-South axis passing through said second focus and being driven by a drive such that with movement of the sun, incident solar radiation is constantly directed at said second focus.