ʻO nā ʻano mea hoʻoheheʻe ʻokoʻa ʻē aʻe
R600A
ʻO ka R600a kahi mea hou hydrocarbon refrigerant me ka hana maikaʻi loa. Loaʻa ia mai nā mea kūlohelohe, ʻaʻole ia e hoʻopōʻino i ka papa ozone, ʻaʻohe hopena ʻōmaʻomaʻo, a he ʻōmaʻomaʻo a me ke kaiapuni.
Loaʻa iā ia ka wela latent kiʻekiʻe o ka evaporation a me ka hiki ke hoʻomaha maikaʻi: maikaʻi ka hana kahe, haʻahaʻa haʻahaʻa Pressure, haʻahaʻa ka hoʻohana ʻana i ka mana, a me ka hoʻihoʻi lohi o ka haʻahaʻa haʻahaʻa. Hoʻohālikelike me nā lubricants compressor like ʻole, he mea ʻokoʻa ia i ka R12.R600a he kinoea lapalapa.
R404A
Hoʻohana nui ʻia ʻo R404A e pani iā R22 a me R502. Hōʻike ʻia ia e ka maʻemaʻe, haʻahaʻa haʻahaʻa, wai ʻole, a me ka hopena refrigeration maikaʻi. ʻAʻohe hopena koʻikoʻi ka mea hoʻoheheʻe R404A i ka papa ozone
Hoʻokumu ʻia ka R404A me HFC125, HFC-134a, a me HFC-143. He kinoea waihoʻoluʻu ʻole ma ka lumi wela a me ka wai ʻākala ʻole ʻole ma kona kaomi.
He kūpono no nā mea hoʻoheheʻe pāʻoihana hou, ka lawe ʻana i nā mea hoʻoheheʻe ʻana, a me nā mea hoʻoheheʻe ma ke ʻano haʻahaʻa.
R407C
ʻO ka R407C ka mea hoʻoheheʻe he hui o nā hydrofluorocarbons. Hoʻohana mua ʻia ka R407C e pani i ka R22. He maʻemaʻe, haʻahaʻa haʻahaʻa, ʻaʻole hiki ke puhi ʻia, a he mau hōʻailona o ka hopena refrigeration maikaʻi.
Ma lalo o ka ea ea, ʻo ka nui o ka nui o ka hoʻoluʻu a me ka coefficient refrigeration ʻaʻole ia ma mua o 5% o R22. ʻAʻole loli nui kona koena hoʻoluʻu ma nā haʻahaʻa haʻahaʻa, akā ʻo 20% ka liʻiliʻi o kona mana hoʻomaha no kēlā me kēia leo.
R717 (Amonia)
ʻO R717 (Amonia) he ammonia mānoanoa i hoʻohana ʻia i loko o ka pahu hau haʻahaʻa haʻahaʻa. He kala ʻole a ʻona loa. Akā he mea hoʻoheheʻe maikaʻi loa me ka hiki ʻole ke hoʻomehana honua.
He mea maʻalahi ka loaʻa, he haʻahaʻa kumu kūʻai, haʻahaʻa haʻahaʻa, hoʻoluʻu ʻāpana nui, coefficient exothermic kiʻekiʻe, aneane hiki ʻole ke hoʻoheheʻe ʻia i ka ʻaila, liʻiliʻi ke kahe ʻana. Akā he mea hoʻonāukiuki a ʻona ka ʻala, hiki ke puhi a pahū.
Hoʻohālikelike o nā mea hoʻoheheʻe
ʻO nā mea i makemake ʻia o kahi mea hoʻoheheʻe maikaʻi:
Manaʻo ʻia kahi mea hoʻoheheʻe he mea hoʻoheheʻe maikaʻi wale nō inā loaʻa iā ia nā waiwai penei:
1. Lae paila haahaa
Pono e haʻahaʻa ka pae hoʻolapalapa o ka mea hoʻoheheʻe maikaʻi ma mua o kēlā mehana ma ke kaomi maʻamau e like me ka wela i makemake ʻia no ka mālama anu, pahu lolo, a i ʻole kahi anu. ʻO ia hoʻi, kahi e hoʻoheheʻe ai ka refrigerant.
Pono e ʻoi aku ke kiʻekiʻe o ke kaomi i loko o nā coils o ka refrigerant ma mua o ke kaomi ʻana i ka lewa i hiki ke nānā maʻalahi i ka leakage o ka refrigerant mai nā coils.
2. Latent Heat Of Vaporization
ʻO ka wela huna (ka nui o ka wela e pono ai e hoʻololi mai ka wai a i ke kinoea ma ka mahana like) no ka evaporator o ka mea hoʻoheheʻe wai e kiʻekiʻe.
ʻO nā wai me ka wela latent ʻoi aku ka nui o kēlā me kēia kg e waiho i kahi hopena hoʻomaha ʻoi aku ka nui ma o ka hoʻohana ʻana i ka wela ma mua o ka wai me ka wela liʻiliʻi.
3. Volume kiko'ī haʻahaʻa
Pono e emi ka nui pili o ke kinoea refrigerant i hiki ke hoʻopiha hou ʻia ke kinoea i loko o ka Compressor i ka manawa. Hoʻoholo ʻia ka nui o ka mīkini hoʻoheheʻe ma muli o ka wela latent a me ka nui pili o ka refrigerant.
4. Liquify ma ke kaomi haʻahaʻa
Hoʻololi ka mea hoʻoheheʻe maikaʻi i wai me ka haʻahaʻa haʻahaʻa wale nō ma ka hoʻoluʻu ʻana me ka wai a i ʻole ka ea. Loaʻa kēia waiwai i ka amonia (NH3).
ʻŌlelo:
Lawe ʻia kekahi o nā ʻatikala mai ka Pūnaewele. Inā loaʻa kekahi hewa, e ʻoluʻolu e kelepona mai iā mākou e holoi. Inā makemake ʻoe i nā huahana pauma wela, e ʻoluʻolu e hoʻokaʻaʻike i ka hui ʻo OSB wela wela, ʻo mākou kāu koho maikaʻi loa.
Ka manawa hoʻouna: Jan-09-2023