Nā mea hoʻoheheʻe, i ʻike ʻia ʻomea hygroscopic, he mau mea paʻa e hoʻoheheʻe a hoʻopaʻa kemika i ka mahu wai. ʻO kahi desiccant hewai-mea wehee hoʻopaʻa i ka maʻu mai ka lewa.
ʻO kāna kumu hoʻomaloʻo, ʻo ia ka hoʻoheheʻe kino ʻana i nā molekala wai i loko o kona ʻano ponoʻī a i ʻole ke hoʻoheheʻe ʻana i nā molekole wai a hoʻololi i kona ʻano kemika e lilo i ʻano ʻē aʻe. mea waiwai.
ʻO ka desiccant no ka wehe ʻana i ka mahu wai ma ka adsorption he silica gel, alumina gel, molecular sieve, activated carbon, iwi lanahu, lanahu a i ʻole ka pālolo hana.
Wehe ʻia ka mahu wai e ke ʻano hoʻoheheʻe kemika, a ʻo ka desiccant i hoʻohana maʻamau ʻia he mea i loaʻa ka pilina kemika nui me ka mahu wai e like me ka calcium chloride, quicklime a i ʻole phosphorus pentoxide.
mahu wai: ʻo ka mahu wai ka māhele kinoea o ka wai. ʻO ia kahi kūlana wai i loko o ka hydrosphere. Hiki ke hana ʻia ka mahu wai mai ka hoʻoheheʻe ʻana a i ʻole ka paila ʻana o ka wai wai a i ʻole ka sublimation o ka hau. ʻAʻole like me nā ʻano wai ʻē aʻe, ʻike ʻole ʻia ka mahu wai.
He mea like anei ka mahu a me ka wai?
Aia ka wai ma ke ʻano he wai a me ke kinoea i ka lewa. Inā he kinoea ka wai, ua kapa ʻia ʻo ia he mahu wai. ʻAʻole hiki iā ʻoe ke ʻike i ka mahu wai i ka lewa, no ka mea, liʻiliʻi loa nā molekala wai . ... Hiki i ka ea mehana ke hoʻopaʻa i ka mahu wai, ʻoiai ʻaʻole hiki ke paʻa ka ea anuanu.
Nā huahana pale: ka hoʻohana ʻana i nā desiccants e hoʻomoʻa i ka w, Kina e hoʻohana ana i nā desiccants e hoʻomoʻa i nā mea hana w, nā mea hoʻolako, nā hale hana