Uma kukhulunywa ngokufakwa komoya oshisayo, kubalulekile ukuthi abakhi kanye nabaninikhaya baqonde izindlela ezahlukene zokulinganisa ezisetshenziswa ukuhlola ukusebenza kwayo. Kulezi zindlela zokulinganisa, inani le-K, inani le-U, kanye nenani le-R yizona ezisetshenziswa kakhulu. Lezi zindlela zonke zibonisa ukusebenza kokushisa kwemikhiqizo yokufakwa komoya oshisayo, okuhlanganisa nokufakwa komoya oshisayo kwe-FEF (foam extruded polystyrene). Lesi sihloko sizohlola ubudlelwano phakathi kwalezi zindlela nokuthi zihlobene kanjani nemikhiqizo yokufakwa komoya oshisayo ye-FEF.
Inani le-K: i-coefficient yokuqhuba ukushisa
Inani le-K, noma i-thermal conductivity, liyisilinganiso sekhono lento yokuqhuba ukushisa. Iyunithi yayo yi-Watts ngemitha-Kelvin (W/m·K). Uma inani le-K liphansi, i-insulation iba ngcono, kodwa lokhu kusho ukuthi into yokuqhuba ukushisa ayisebenzi kahle. Kuzinto zokuvimbela i-FEF, inani le-K libalulekile ngoba lithinta ngqo ikhono lento yokumelana nokugeleza kokushisa. Ngokuvamile, imikhiqizo yokuvimbela i-FEF inenani le-K eliphansi, okwenza isebenze kahle kakhulu ezinhlotsheni ezahlukene zokusebenza, kusukela ezakhiweni zokuhlala kuya kwezentengiselwano.
Inani le-U: Isilinganiso sokudlulisa ukushisa sisonke
Inani le-U libonisa i-coefficient yokudlulisa ukushisa iyonke yesakhi sesakhiwo, njengodonga, uphahla noma phansi. Livezwa ngama-Watts ngemitha yesikwele-Kelvin (W/m²·K) futhi alinaki nje kuphela izinto zokufaka ukushisa, kodwa futhi nemiphumela yezikhala zomoya, umswakama nezinye izinto. Uma inani le-U liphansi, kulapho ukufakwa ukushisa kungcono khona, njengoba kusho ukuthi kulahleka ukushisa okuncane noma kutholakale ngesakhi sesakhiwo. Lapho kuhlolwa imikhiqizo yokufaka ukushisa ye-FEF, inani le-U libalulekile ukuqonda ukuthi lizosebenza kanjani ezisetshenzisweni zangempela, ikakhulukazi uma lihlanganiswa nezinye izinto zokwakha.
Inani le-R: ukumelana nokugeleza kokushisa
Inani le-R lilinganisa ukumelana nokushisa kwento, okubonisa ukuthi imelana kahle kangakanani nokugeleza kokushisa. Amayunithi ayo ayimitha yesikwele-i-Kelvin nge-watt (m²·K/W). Uma inani le-R liphakeme, kulapho ukufudumala kungcono khona, okusho ukuthi into ivimba ukudluliselwa kokushisa ngempumelelo. Imikhiqizo yokufudumala ye-FEF ngokuvamile inamanani aphezulu e-R, okwenza ibe yindawo ekahle yokwakha eyonga amandla. Inani le-R libaluleke kakhulu kubanikazi bezindlu abafuna ukunciphisa izindleko zamandla nokwandisa induduzo yezindawo zabo zokuhlala.
Ubudlelwano phakathi kwenani le-K, inani le-U kanye nenani le-R ekufakweni kwe-FEF
Ukuqonda ubudlelwano phakathi kwe-K-value, i-U-value kanye ne-R-value kubalulekile ekuhloleni ukusebenza kwemikhiqizo yokuvikela ye-FEF. I-K-value igxila ezintweni ngokwazo, i-R-value ilinganisa ukumelana kwayo, kanti i-U-value inikeza isithombe esibanzi sokusebenza okuphelele kwento yokwakha.
Ukuze kuhlotshaniswe la manani ngokwezibalo, ifomula elandelayo ingasetshenziswa:
- **Inani lika-R = 1 / Inani lika-K**: Lesi sibalo sithi njengoba inani lika-K lehla (okubonisa ukuhanjiswa okungcono kokushisa), inani lika-R liyakhuphuka, okusho ukusebenza okuthuthukisiwe kokushisa.
- **Inani lika-U = 1 / (Inani lika-R + amanye ama-resistor)**: Le fomula ikhombisa ukuthi inani lika-U alithintwa nje kuphela yinani lika-R lesendlalelo sokufaka umoya, kodwa futhi nezinye izici ezifana nezikhala zomoya namabhuloho okushisa.
Ngemikhiqizo yokuvikela i-FEF, amanani aphansi e-K anegalelo emananini aphezulu e-R, okusiza ekufinyeleleni amanani aphansi e-U uma ehlanganiswa nezakhiwo. Lo mphumela wokubambisana wenza ukuvikela i-FEF kube ukukhetha okuthandwayo kwabakhi bezakhiwo nabakhi abafuna imiklamo eyonga amandla.
Ngamafuphi, inani le-K, inani le-U kanye nenani le-R kuyizinkomba ezihlobene ezihlinzeka ngemininingwane ebalulekile ngokusebenza kokushisa kwemikhiqizo yokushisa ye-FEF. Ngokuqonda lobu budlelwano, abakhi kanye nabaninikhaya bangenza izinqumo ezinolwazi mayelana nezinto zokushisa, ekugcineni badale izindawo zokuhlala ezisebenzisa amandla kahle nezikhululekile. Njengoba ukusebenza kahle kwamandla kuqhubeka nokuba yinto eza kuqala embonini yokwakha, ukubaluleka kwalezi zindinganiso kuzokhula kuphela, ngakho-ke kumele kucatshangelwe lapho kukhethwa izixazululo zokushisa.
Isikhathi sokuthunyelwe: Meyi-17-2025
