Mō te whakamahana, he mea nui kia mārama ngā kaihanga me ngā kaipupuri whare ki ngā inenga rerekē e whakamahia ana hei aromatawai i tōna whai huatanga. O ēnei inenga, ko te uara-K, te uara-U, me te uara-R ngā mea e whakamahia whānuitia ana. E whakaata ana ēnei uara katoa i te mahi wera o ngā hua whakamahana, tae atu ki te whakamahana FEF (foam extruded polystyrene). Ka tūhuratia e tēnei tuhinga te whanaungatanga i waenga i ēnei uara me te pānga ki ngā hua whakamahana FEF.
Uara K: tauwehenga kawe wera
Ko te uara-K, te kawe wera rānei, he ine i te kaha o tētahi rauemi ki te kawe i te wera. Ko tōna waeine ko Watts ia mita-Kelvin (W/m·K). Ko te iti iho o te uara-K, ko te pai ake o te whakamarumaru, engari ko te tikanga he iti ake te pai o te kawe i te wera e te rauemi. Mō ngā rauemi whakamarumaru FEF, he mea nui te uara-K nā te mea ka pā tika ki te kaha o te rauemi ki te ātete i te rere o te wera. I te nuinga o te wā, he iti ngā uara-K o ngā hua whakamarumaru FEF, ā, he tino whai hua ēnei i roto i ngā momo tono, mai i ngā whare noho ki ngā whare arumoni.
Uara-U: Tauwehenga whakawhiti wera whānui
Ko te uara-U e tohu ana i te tauwehenga whakawhiti wera whānui o tētahi wāhanga whare, pērā i te pakitara, te tuanui, te papa rānei. Ka whakaaturia i roto i te Watts ia mita tapawha-Kelvin (W/m²·K) ā, e kore e whakaarohia anake te rauemi whakamarumaru, engari ko ngā pānga o ngā āputa hau, te haumākū me ētahi atu āhuatanga. Ko te iti iho o te uara-U, ko te pai ake o te whakamarumaru, nā te mea he iti ake te wera e ngaro ana, e whiwhihia ana rānei mā roto i te wāhanga whare. I te aromatawai i ngā hua whakamarumaru FEF, he mea nui te uara-U kia mārama ai me pēhea tana mahi i roto i ngā tono o te ao tūturu, inā koa ka honoa ki ētahi atu rauemi hanga.
Uara R: ātete ki te rere o te wera
Ko te uara-R te ine i te ātete wera o tētahi rauemi, e whakaatu ana i te pai o tōna ātete ki te rere o te wera. Ko ōna waeine ko te mita tapawha-Kelvin ia watt (m²·K/W). Ko te teitei ake o te uara-R, ko te pai ake o te whakamarumaru, ko te tikanga he pai ake te aukati a te rauemi i te whakawhiti wera. Ko ngā hua whakamarumaru FEF he nui ake ngā uara-R, he mea pai mō te hanganga penapena-pūngao. He mea nui rawa te uara-R mō ngā kaipupuri whare e hiahia ana ki te whakaiti i ngā utu pūngao me te whakanui ake i te whakamarie o ō rātou wāhi noho.
Te hononga i waenga i te uara K, te uara U me te uara R i roto i te whakamarumaru FEF
He mea nui te mārama ki te whanaungatanga i waenga i te uara-K, te uara-U me te uara-R hei aromatawai i te mahi a ngā hua whakamahana FEF. E aro ana te uara-K ki te rauemi tonu, ka ine te uara-R i tōna ātete, ā, ka homai e te uara-U he tirohanga whānui ake mō te mahi whānui o tētahi wāhanga whare.
Hei hono i ēnei uara mā te pāngarau, ka taea te whakamahi i te tātai e whai ake nei:
- **Uara-R = 1 / Uara-K**: E kī ana tēnei whārite, i te hekenga o te uara-K (e tohu ana i te pai ake o te kawe wera), ka piki ake te uara-R, ko te tikanga he pai ake te mahi whakamarumaru.
- **Uara U = 1 / (Uara R + ētahi atu ātete)**: E whakaatu ana tēnei tātai kāore te uara R o te paparanga whakamarumaru anake e pāngia ana te uara U, engari e ētahi atu āhuatanga anō hoki pērā i ngā āputa hau me ngā piriti wera.
Mō ngā hua whakamahana FEF, ka nui ake ngā uara-K iti, ā, ka āwhina i te whakatutuki i ngā uara-U iti ina whakauruhia ki ngā huihuinga whare. Nā tēnei pānga mahi tahi ka waiho te whakamahana FEF hei whiringa rongonui mā ngā kaihoahoa me ngā kaihanga e rapu ana i ngā hoahoa penapena-pūngao.
Hei whakarāpopototanga, ko te uara-K, te uara-U me te uara-R he tohu e hono tahi ana, e whakarato ana i ngā māramatanga whai hua ki te mahi wera o ngā hua whakamahana FEF. Mā te mārama ki ēnei whanaungatanga, ka taea e ngā kaihanga me ngā kaipupuri whare te whakatau whai whakaaro mō ngā rauemi whakamahana, ā, ka waihangahia he wāhi noho pai ake, he wāhi noho whakamarie hoki. I te mea kei te noho tonu te whai huatanga o te pūngao hei kaupapa matua i roto i te umanga hanga, ka piki ake te hiranga o ēnei uara, nō reira me whai whakaaro ki a rātou i te wā e whiriwhiri ana i ngā otinga whakamahana.
Wā tuku: Mei-17-2025
