Ett av de strsta problemen som ortodoxa frintelsehistoriker tampats med de senaste 40 ren r hur krematorierna i Auschwitz-Birkenau kunde kremera hundratusentals kroppar utan att det eldfasta teglet i ugnarna behvde bytas, en mdosam process som innebar att krematoriet behvde stngas ned, ugnarna nedkylas, och tegelverket kring ugnarna lggas om.
Kremeringsugnarna i Auschwitz var, precis som moderna 2000-talskrematorier, byggda med ett enormt murverk i eldfast tegel, vars syfte var att absorbera den vrme som genererades vid frbrnningen av koks, och utstrla denna vrme till kremeringskammaren i nskad temperatur. I slutet p 30-talet var eldfast tegel certifierat fr ca. 2000-3000 kremeringar, varefter ett serviceunderhll behvde genomfras och teglet bytas. Inte mycket har hnt sedan 30-talet, och ven idag r eldfast tegel certifierat fr ca. 2000-3000 kremeringar. Sklet till detta r att den vrmestress som teglet utstts fr leder till sprickbildning och flagningar, vilket snker absorberingsfrmgan och gr teglet obrukbart.
Det nordamerikanska kremeringsfrbundet frgade sina medlemmar hur ofta deras moderna krematorier behvde genomfra tegelbyten, och fick till svar att byten genomfrdes efter i genomsnitt 1250-2500 kremeringar:
Denna gckande frga har tagits upp av frintelserevisionister s tidigt som p 80-talet, och redan vid Zndelrttegngen i Kanada r 1988 s diskuterades frgan. Frsvaret hade kallat expertvittnet Ivan Lagac, som var en certifierad kremeringstekniker och frestndare fr ett krematorium i Alberta. Lagac vittnade bland annat om fljande i relation till det eldfasta tegelverket i krematoriet:
En av de frsvrande omstndigheterna fr det officiella frintelsenarrativet r att ett annat tyskt koncentrationslger, Gusen i sterrike, genomfrde ett dokumenterat tegelbyte efter 3200 kremeringar, vilket tog en ingenjr ca. 1 mnad att genomfra. Sklet till det omfattande tegelbytet var den hga belastning som krematoriet utsatts fr. Fr Auschwitz finns dock ingen som helst dokumentation om ngra tegelbyten, trots att hela det enorma arkivet frn det centrala byggnadskontoret i Auschwitz, Zentralbauleitung, finns bevarat i Moskva och studerats uttmmande av frintelseforskare sedan 90-talet. Frestllningen att Auschwitz-ugnarna genomgick hundratusentals kremeringar utan omfattande tegelbyten r tekniskt absurt.
Kremeringsugnarna i Auschwitz var, precis som moderna 2000-talskrematorier, byggda med ett enormt murverk i eldfast tegel, vars syfte var att absorbera den vrme som genererades vid frbrnningen av koks, och utstrla denna vrme till kremeringskammaren i nskad temperatur. I slutet p 30-talet var eldfast tegel certifierat fr ca. 2000-3000 kremeringar, varefter ett serviceunderhll behvde genomfras och teglet bytas. Inte mycket har hnt sedan 30-talet, och ven idag r eldfast tegel certifierat fr ca. 2000-3000 kremeringar. Sklet till detta r att den vrmestress som teglet utstts fr leder till sprickbildning och flagningar, vilket snker absorberingsfrmgan och gr teglet obrukbart.
Det nordamerikanska kremeringsfrbundet frgade sina medlemmar hur ofta deras moderna krematorier behvde genomfra tegelbyten, och fick till svar att byten genomfrdes efter i genomsnitt 1250-2500 kremeringar:
Even the most sophisticated refractory materials will wear out over time and need to be replaced since the refractory floor or hearth is subject not only to the intense heat of cremation, but to the abrasion of sweeping and cleaning out cremated remains after every cremation. Its typical for the floor to be the first, and most common, area that is replaced in a cremator. Because refractory repairs are such a necessary (and expensive) part of operating a crematory, we went to the experts.https://www.cremationassociation.org...tor-Efficiency
We asked all CANA member crematory equipment manufacturers questions regarding the replacement of the hearth or floor of a cremator, seeking their insight and wisdom as well as any tips on how to increase the longevity of the refractory hearth.
HOW OFTEN SHOULD A CREMATORY OPERATOR EXPECT TO REPLACE THE REFRACTORY FLOOR IN THEIR CREMATOR?
This question got quite a range of answers anywhere from one thousand to five thousand cremations! Our experts agreed that so much of the lifespan depended on the design of the units and the materials that are used. Determining the longevity of the floor (or hearth) is based on frequency of use, load volume, and remember that loading the case and removing the cremated remains causes abrasions. The average of the companies responses ranged from 1,250 to 2,500.
IS THERE A SPECIFIC OR PARTICULAR TYPE OF REFRACTORY MATERIAL THAT YOU USE? WHAT ARE ITS ADVANTAGES? DISADVANTAGES?
To a one, this was proprietary no one wanted to say what was in the secret sauce but all have tried and tested many materials until they found ones that could withstand very high heat, held up with heavy use, and created a smooth surface.
Denna gckande frga har tagits upp av frintelserevisionister s tidigt som p 80-talet, och redan vid Zndelrttegngen i Kanada r 1988 s diskuterades frgan. Frsvaret hade kallat expertvittnet Ivan Lagac, som var en certifierad kremeringstekniker och frestndare fr ett krematorium i Alberta. Lagac vittnade bland annat om fljande i relation till det eldfasta tegelverket i krematoriet:
To repair the unit in such circumstances the operator had to cease operation of the retort, allow the machine 48 hours of cooling down time with the door fully open, and preferably with a fan flowing through the machine. The bricks or tiling then had to be removed and new ones cemented. The average life expectancy of floor refractory was 1,500 cremations. The bricks of the retort's walls and ceilings were rated for 3,000 cremations while the bricks of the afterburn chamber were rated for roughly 2,000 cremations.Trots att frgan r helt avgrande fr den pstdda kremeringskapaciteten i lgret, som i vrigt inte kunnat belggas med empiriska data, s har problemet avhandlats ytterst sparsamt i den befintliga frintelseortodoxa litteraturen, och tekniska studier p frgan har istllet lagts p revisionisternas axlar, som avhandlat frgan i flertalet primrstudier.
The time to cremate a human being (the cremation cycle) took an average of two hours. After the first cremation of the day was completed, the operator must let the retort cool-down for a minimum of one hour before beginning the second case. After the second cremation, a cool- down period of at least two hours was required. Even with cool-down times, Lagac testified that cremations could not be done "24 hours a day, round the clock, day after day the refractory will not tolerate it." Factory recommendation for normal operation was a maximum of three cases per day in a normal eight hour work day. No more than 50 -- 60 cases should be processed in any month so that the refractory life was prolonged. That was an average of 2 cases a day.
There was no way to speed up this process, Lagac testified, without effecting the refractory brick and endangering the life of the operator. If no cool-down period was allowed between cremations, the temperature would go out of control and probably exceed the 2,200 degrees Fahrenheit rated for the bricks. This would cause excessive spalling, or flaking, of the bricks. Secondly, the operator could not safely open a retort having an internal temperature of 2,000 degrees Fahrenheit. "I have to allow for cool-down time, for my safety," said Lagac, "and to bring the temperature in the retort to a point where there is safe loading of the next case."
Lagac introduced a sample brick into evidence which the jury was allowed to handle. The brick was extremely light and brittle making it an extremely good insulator, but also very delicate: "I could take an ordinary handsaw and cut it in half." The brick was able to withstand 2,600 degrees Fahrenheit, and was therefore a little better than the average firebrick.
In a new crematory, the new refractory brick had to be cured or dried out during a break-in cycle of one cremation per day for 25 days. If this number was exceeded, refractory failure would certainly be caused.
During normal cremations, there was some flaking of brick, wearing it from the inside to the outside. If the brick was overheated, however, it would simply crack along its length to about one half of its depth, thereby causing premature failure. In such a case, the fire would not be contained within the retort and the metal superstructure, which supported the retort, would buckle. Eventually, testified Lagac, the retort would collapse and a fire would occur outside the cremation chamber.
En av de frsvrande omstndigheterna fr det officiella frintelsenarrativet r att ett annat tyskt koncentrationslger, Gusen i sterrike, genomfrde ett dokumenterat tegelbyte efter 3200 kremeringar, vilket tog en ingenjr ca. 1 mnad att genomfra. Sklet till det omfattande tegelbytet var den hga belastning som krematoriet utsatts fr. Fr Auschwitz finns dock ingen som helst dokumentation om ngra tegelbyten, trots att hela det enorma arkivet frn det centrala byggnadskontoret i Auschwitz, Zentralbauleitung, finns bevarat i Moskva och studerats uttmmande av frintelseforskare sedan 90-talet. Frestllningen att Auschwitz-ugnarna genomgick hundratusentals kremeringar utan omfattande tegelbyten r tekniskt absurt.