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Lethbridge Herald Newspaper Archives

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Lethbridge Herald, The (Newspaper) - June 6, 1974, Lethbridge, Alberta Thursday, June 6, 1974 THE LETHBRIDGE HERALD-27 Not arrogant Margaret Trudeau in her first-ever political speech in British Columbia, told a West Vancouver audience that her husband is not arrogant as charged by his opponents, but rather a "very warm loving human being." Study launched Water may heat homes OTTAWA (CP) It's time to end an energy drain whereby two million gallons of warmed water is pumped wastefully into Lake Ontario every minute from the Pickering nuclear power station, says an Ottawa nuclear engineer. Armed with a federal energy department grant. Prof. J.T Rogers of Carieton "University has launched with colleagues a study on the use .of energy. They will examine, among other things, ways to heat homes and run industries with the waste heat from nuclear reactors. Each year the waste heat in water used to cool Pickering's four nuclear reactors has an energy equivalent of more than 30 per cent of the province's total electrical energy production for the year. Prof. Rogers said Wednesday in an interview the technology is at hand to capture some of the wasted energy. With a large nuclear-power expansion planned for the country, and the threat of dwindling fossil fuel supplies, it was vital that this energy be conserved. If it was not, not only would energy be squandered, but the warmed water could cause thermal pollution by heating rivers and lakes and causing environmental havoc, he said. According to the second law of thermodynamics, there is a limit of about 30 per cent on how efficiently thermal energy can be transformed into work or electricity. But there is no theoretical Record invasion of war veterans From AP-REUTER RANVILLE. France (CP) The biggest anniversary celebration of the Allied invasion of Nazi-conquered Europe 30 years ago began here Wednesday with a wreath-placing ceremony at a British cemetery within sight of the battlefield. The commemoration includes parachute drops, an assault on a 100-foot cliff by U.S Rangers and several military parades, firework- displays and speeches. To complete the tableau of nostalgia for the 360 Allied officials and 1.500 D-Day veterans here, more than" 100 vintage war vehicles will wind through the twisting Normandy roads, towns and villages which first had a glimpse of the long awaited invaders on June 6. 1944 The oldest ship in the Royal Navy. HMS Undaunted, is lying off the invasion beaches ft look part in D-Day operations and later carried Supreme Commander Gen. Owight Easenhower on an inspection of the beachhead LEADERS RETURN The U.S. delegation is led by Gen Omar Bradley. SI, only livinp American five-star gen- eral On D-Day, Bradley stuffed his oars with cotton to Work out the sound of gunfire and monitored the invasion from the flagship August a The British delegation in- cludes Gen Sir Hirhard Gale, who commanded the 6th Air- borne Division which niecess- fully captured intact a vital bridge near here in the first hours of the invasion Ambassadors and delegates here also represent Canada. France, Belgium Norway and the Netherlands all of which tiad units in Operation Over- lord, code name of the invasion Offings of the rencb com- mittee organizing the celebra- tion said it expects that senior veterans will not attend the next major commemoration on the 35th anniversary of D- Day in 1979. "Many veterans now in their fifties also feel this is a good time to revisit the scene of their exploits." an official said. "This is what accounts for the unusually large turnout." For those with no memories of the invasion, it is hard to imagine the scenes of carnage and destruction. BLASTS FORGOTTEN Omaha Beach now is an tranquil four-mile stretch of clean sand gently lapped by the Atlantic At Arromanches. a few con- crete caissons are the only vestiges of a huge artificial harbor built by the Alhes in the British sector of the beachhead. German pillboxes and bunk- ers still dot the cliffs over the beaches, some with rusting puns BuJ at the western end of Omaha where assault troops died by the hundreds under the curtain of death poured out by the a bunker has been turned into a lifeguard post roming to Normandy. Bradley visited the grave of the late president Charles de Gaulle at Colombey Lcs Deux in eastern France Britain's ambassador to France. Sir Edward Tomkms. said in a prepared speech at Ver-Sur-Mrr. '1 hope 'hat our presence may serve to strengthen the between Europe and the United States and Canada We cannot afford to put at nsk the fundamental principles for whirh 'the Ku- CommiimU t alliance stands for the of sconng points off rarh nil cr upper limit on how efficiently thermal energy can be used to provide heat for any purpose, said Prof Rogers who worked for several years with private nuclear companies in Canada and the United States. Accordingly, it might be possible to recoup almost all the waste energy from a nuclear reactor which, in the case of Candu reactors, is about 70 per cent of the total energy produced from the fission of natural uranium. An Atomic Energy of Canada Ltd. official said the cooling water that circulates from Lake Ontario around the reactors and back into the lake is only heated 15 to 20 degrees, and is not hot enough to be put to a practical use. Ontario Water Resources Commission guides stipulate that the water should not be heated more than 20 degrees if it is dumped back into a waterway. If the cooling water was cir- culated more slowly, it could be heated under pressure to very high temperatures, but the decrease in the cooling effect would reduce the capability of a nuclear reactor to produce electricity, the spokesman said. To overcome this problem, nuclear-plant designers should view the plants as units capable of operating more economically by producing electricity as well as thermal energy in the form of hot pressurized water or steam, said Prof. Rogers While electricity production might be reduced, the over-all effect would be a more economical system if most of the thermal energy could be tapped He hoped to devise a system to do this within one year. The hot water or steam could be piped into an urban district and used to heat homes. At present, home heating accounts for about 30 per cent of total oil consumption Prof. Rogers said he knew of only one nuclear reactor in the world that produces useful thermal energy. The Agesta reactor near Stockholm produces about 10 megawatts of electricity and 55 megawatts of thermal energy for district heating. Hospital sale EDMONTON