Ibirahuri by'ubwoya bw'ikirahuri ku rukuta rwa sandwich bigabanijwemo ubwoko bubiri: ubwoya bw'ikirahuri bwerekanwe hamwe n'ikibaho cy'ubwoya bw'ikirahure.Ubuso bwikibaho cyangwa ikibaho burashobora gutwikirwa kole yumukara cyangwa gufatanwa nigice cyumukara (isoko: Ubushinwa Insulation Network) fibre yikirahure yunvikana kugirango ikomeze.Irakwiriye gukoreshwa mubucuruzi., Ubushyuhe bwumuriro winkuta ebyiri mumazu yinganda na rusange.

Ibirahuri by'ubwoya bw'ikirahuri ku rukuta rwa sandwich birashobora kuguha inyungu zikurikira: Irinde kondegene, kugabanya uburemere bw'urukuta, kongera aho ukoresha, kuzigama ingufu, kongera ihumure, kubika amajwi, no kwirinda umuriro.

Centrifugal ibirahuri byubwoya bifite amajwi meza yo kwinjiza amajwi hagati-hejuru-y-amajwi menshi.Ibintu nyamukuru bigira ingaruka kumikorere yijwi ryimyenda ya centrifugal yubwoya ni ubunini, ubucucike no kurwanya umwuka.Ubucucike nuburemere bwibintu kuri metero kibe.Kurwanya umwuka ni igipimo cyumuvuduko wumwuka n umuvuduko wumwuka kumpande zombi yibintu kuri buri gice.Kurwanya umwuka ni ikintu cyingenzi kigira ingaruka kumikorere yijwi ryubwoya bwikirahure cya centrifugal.Niba kurwanya imigezi ari bito cyane, bivuze ko ibikoresho ari bike kandi kunyeganyega kwumwuka byoroshye kunyuramo, kandi imikorere yo kwinjiza amajwi iragabanuka;niba irwanya umuvuduko ari munini cyane, bivuze ko ibikoresho ari byinshi, kunyeganyega kwumwuka biragoye kohereza, kandi imikorere yo kwinjiza amajwi nayo iragabanuka.

Kubirahuri bya centrifugal yubwoya, imikorere yo kwinjiza amajwi ifite imbaraga zo guhangana neza.Mu buhanga nyabwo, biragoye gupima imyuka ihumanya ikirere, ariko irashobora kugereranywa no kugenzurwa nubunini nubucucike bwinshi.

1. Hamwe no kwiyongera kwubugari, coefficente yijwi ryijwi ryikigereranyo giciriritse na gito cyiyongera cyane, ariko umuvuduko mwinshi uhinduka gake (kwinjiza inshuro nyinshi ni nini).
2. Iyo umubyimba udahindutse, ubwinshi bwubwiyongere bwiyongera, kandi coefficente yijwi ryijwi rya mid-low frequency nayo iriyongera;ariko iyo ubwinshi bwinshi bwiyongereye kurwego runaka, ibintu biba byinshi, kurwanya imigezi biruta uburyo bwiza bwo guhangana n’amazi, kandi coefficente yo kwinjiza amajwi igabanuka aho.Kubirahuri bya centrifugal yubwoya hamwe nubucucike bwa 16Kg / m3 hamwe nubunini burenga 5cm, umuyoboro muke wa 125Hz ni 0.2, naho coefficente yo kwinjiza amajwi yo hagati kandi nini (> 500Hz) yegereye 1.
3. Iyo umubyimba ukomeje kwiyongera kuva kuri 5cm, coeffisiyoneri yo kwijwi ryumuvuduko muke iriyongera buhoro buhoro.Iyo umubyimba urenze 1m, coefficente ya 125Hz yo kwinjiza amajwi nayo izaba hafi ya 1. Mugihe umubyimba uhoraho kandi ubwinshi bwubwinshi bwiyongera, coefficente yijwi ryamajwi yo hasi yubwoya bwa centrifugal yubwoya buzakomeza kwiyongera.Iyo ubwinshi bwinshi buri hafi 110kg / m3, imikorere yo kwinjiza amajwi igera ku giciro cyayo kinini, ikaba igera kuri 0,6-0.7 ku bunini bwa 50mm hamwe na 125Hz.Iyo ubwinshi bwinshi burenze 120kg / m3, imikorere yo kwinjiza amajwi iragabanuka kubera ko ibintu biba byinshi, kandi imikorere yo hagati yo hagati na nini cyane irakorwa cyane.Iyo ubwinshi bwinshi burenze 300kg / m3, imikorere yo kwinjiza amajwi igabanuka cyane.

Ubunini bwamajwi yikirahure yubwoya bukunze gukoreshwa muri acoustique yububiko ni 2,5cm, 5cm, 10cm, kandi ubwinshi bwayo ni 16, 24, 32, 48, 80, 96, 112kg / m3.Mubisanzwe ukoreshe 5cm z'ubugari, 12-48kg / m3 ubwoya bw'ikirahuri.