Chonde dziwani! Mafiriji anayi ndi oyaka moto komanso amaphulika!

1. R32 firiji

R32, yomwe imadziwikanso kuti difluoromethane ndi carbon difluoride, ilibe mtundu komanso yopanda fungo, ndipo imakhala ndi chitetezo cha A2. R32 ndi cholowa m’malo mwa Freon wokhala ndi zida zabwino kwambiri zamagetsi. Ili ndi mawonekedwe otentha kwambiri, kuthamanga kwa nthunzi ndi kuthamanga, koyefishienti yayikulu, kuzizira kwa ozoni phindu, koyefishienti yaying’ono yotentha, yoyaka komanso yophulika. Malire oyaka mlengalenga ndi 15% ~ 31%, ndipo ipsa ndi kuphulika ikayaka lawi.

R32 ili ndi cholumikizira chotsika chotsika komanso kutentha kwambiri. Ngakhale R32 ili ndi maubwino ambiri, R32 ndimoto woyaka komanso wophulika. Kukhazikitsa ndi kukonza zowongolera mpweya ndizowopsa. Tsopano kuphatikizidwa ndi zinthu zosatsimikizika za R32, nkhani zachitetezo ziyenera kuganiziridwa. Kukhazikitsa ndi kuwotcherera zida za firiji za R32 ziyenera kusamutsidwa.

2. R290 firiji

R290 (propane) ndi mtundu watsopano wa refrigerant yosavomerezeka ndi zachilengedwe, yomwe imagwiritsidwa ntchito kwambiri pakatenthedwe kampweya, ma air conditioner opopera, makina opangira mpweya wapanyumba ndi zida zina zazing’ono za firiji. Monga firiji ya hydrocarbon, R290 ili ndi mtengo wa ODP 0 ndi GWP mtengo wochepera 20. Poyerekeza ndi mafiriji wamba, R290 ili ndi zabwino zachilengedwe, monga zikuwonetsedwa pansipa:

2.1 Kuwonongeka kwa ozoni wosanjikiza ndi R22 firiji ndi 0.055, ndipo kozizira koyefishienti ndi 1700;

2.2 Kuwonongeka kwa ozoni wosanjikiza ndi R404a firiji ndi 0, ndipo kozizira koyefishienti ndi 4540;

2.3 Kuwonongeka kwa ozoni wosanjikiza ndi R410A firiji ndi 0, ndipo kozizira koyefishienti ndi 2340;

2.4 Kuwonongeka kwa ozoni wosanjikiza ndi R134a firiji ndi 0, ndipo kozizira koyefishienti ndi 1600;

2.5 Kuwonongeka kwa ozoni wosanjikiza ndi R290 firiji ndi 0, ndipo kozizira koyefishienti ndi 3,

Kuphatikiza apo, refrigerant ya R290 ili ndi mawonekedwe a kutentha kwaposachedwa kwamadzi, madzi abwino, ndi kupulumutsa mphamvu. Komabe, chifukwa cha kuwotcha komanso kuphulika, kuchuluka kwa kulowetsedwa kumakhala kochepa, ndipo chitetezo ndi A3. Zingalowe zimafunika mukamagwiritsa ntchito R290 firiji yoyatsira komanso malawi otseguka saloledwa, chifukwa kusanganikirana kwa mpweya (oxygen) kumatha kupanga zosakanikirana, ndipo pamakhala chiopsezo choyaka ndi kuphulika mukakumana ndi magwero a kutentha ndi malawi otseguka.

3. R600a firiji

R600a isobutane ndi mtundu watsopano wa hydrocarbon refrigerant yokhala ndi magwiridwe antchito abwino, omwe amachokera kuzipangizo zachilengedwe, sichiwononga ozone wosanjikiza, ilibe mphamvu yotenthetsera, ndipo ndiyosamalira zachilengedwe. Makhalidwe ake ndi kutentha kwakukulu kotuluka kwamasamba ndi kuzirala kwamphamvu; magwiridwe antchito abwino, kuthamanga kwakanthawi kochepa, kugwiritsa ntchito mphamvu zochepa, komanso kutentha kwakanthawi kochepa. Zimagwirizana ndi mafuta osiyanasiyana a compressor. Ndi mpweya wopanda mtundu pa kutentha kwabwino komanso madzi opanda utoto komanso owonekera pompopompo. R600a imagwiritsidwa ntchito makamaka m’malo mwa R12 refrigerant, ndipo tsopano imagwiritsidwa ntchito kwambiri pazida za firiji.

Kuchuluka kwa malire a R600a refrigerant ndi 1.9% mpaka 8.4%, ndipo chitetezo ndi A3. Itha kupanga chisakanizo chophulika mukasakanikirana ndi mpweya. Ikhoza kuwotcha ndikuphulika ikawonetsedwa poyatsira kutentha ndi malawi. Imachita mwamphamvu ndi ma oxidants. Mpweya wake umalemera kuposa mpweya. Gawo lakumunsi limafalikira patali kwambiri, ndipo limayaka mukakumana ndi gwero lamoto.

4. R717 (ammonia) firiji

4.1 Pomaliza, tiyeni tikambirane za R717 (ammonia) refrigerant. Amoniya ndi owopsa kuposa mitundu itatu yomwe ili pamwambapa ya mafiriji. Ndi ya sing’anga wa poizoni ndipo ili ndi mlingo wa kawopsedwe.

4.2 Mpweya wa ammonia mu nthunzi ukafika 0.5 mpaka 0.6%, anthu amatha kupatsidwa chiphe mwa kukhalamo kwa theka la ola. Chikhalidwe cha ammonia chimatsimikizira kuti kuyendetsa ndi kukonza dongosolo la ammonia kuyenera kuyendetsedwa, ndipo anthu omwe ali mufiriji ayenera kumvetsera akagwiritsa ntchito.