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Liquid Air: Air Compressed to 170 Atmospheres and Expanded through the Hampson Liquefier (Travers 1901)
Charlie

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Charlie

1. Novemba 2026DE
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Liquid Air: Air Compressed to 170 Atmospheres and Expanded through the Hampson Liquefier (Travers 1901)

Air freed of carbon dioxide and water is pumped to about 170 atmospheres and let out through a fine valve at the foot of long copper coils. The expanding air cools a little and flows back over the coils, cooling the air coming down, until some of it turns liquid and drips into a vacuum vessel. Result: liquid air, about 1-1.5 litres an hour, the first after about four minutes. Source: M. W. Travers, The Experimental Study of Gases (1901), pp. 190-194, Fig. 100 (shown above). High pressure and liquid air: Travers warns that a sudden fault can cause a serious accident.
Juu
1 day

Maagizo

1

Draw air through slaked lime

Draw the air into the compressor through a cylinder of moist slaked lime spread on trays.

Vifaa kwa hatua hii:

Hewa ya angahewa - DuniaHewa ya angahewa - Dunia1 as required

Zana zinazohitajika:

Hidroksidi ya kalsiamu (chokaa iliyozimwa)Hidroksidi ya kalsiamu (chokaa iliyozimwa)
2

Compress in two stages

Compress in two stages to 160-180 atmospheres (the first to about 16), each stage followed by a copper coil in running water and then a water separator. A little water goes in with the air to lubricate; blow it off from the separator now and then. Travers' compressor was driven by a 5 horse-power electric motor.

Zana zinazohitajika:

Kibana gesiKibana gesi
Mota ya umemeMota ya umeme
MajiMaji
Kipima ShinikizoKipima Shinikizo
3

Dry over caustic potash

Pass the air through a cylinder of lumps of caustic potash to take out the water vapour and the last carbon dioxide. Run off the little water that collects after some weeks.

Zana zinazohitajika:

Hidroksidi ya potasiamuHidroksidi ya potasiamu
4

Liquefy

Lead the dry air into the Hampson liquefier, its lower end and valve inside a vacuum vessel. Start the motor, blow a little air through, close the valve and let the pressure rise to 170 atmospheres. Open the valve and keep the flow steady by the glycerol gauge on the exit (about 10 cm of glycerol with an exit rubber tube 80 cm long and 2 cm across). Liquid air appears in about four minutes; about 5 % of the air liquefies.

Zana zinazohitajika:

Kiyeyusha-hewa cha HampsonKiyeyusha-hewa cha Hampson
Chombo cha ombwe (Dewar)Chombo cha ombwe (Dewar)
Bomba la MpiraBomba la Mpira
GlaiseroliGlaiseroli
Kipima ShinikizoKipima Shinikizo
5

Draw it off, watch the machine

Run off the liquid air through the tap from time to time, about 1-1.5 litres an hour. Watch the machinery the whole time.

Zana zinazohitajika:

Chombo cha ombwe (Dewar)Chombo cha ombwe (Dewar)

Vifaa

1

Zana Zinazohitajika

10

CC0 Umma Wote

Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.

Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.

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