1. Zazzabi: Zazzabi yana da tasiri kai tsaye a kan tasirin thermal na abubuwa daban-daban na thermal.Yayin da yawan zafin jiki ya karu, ƙaddamarwar thermal na kayan yana tashi.

2. Danshi abun ciki: Dukan thermal rufi kayan da wani porous tsarin da sauki sha danshi.Lokacin da abun ciki na danshi ya fi 5% ~ 10%, danshi ya mamaye wani yanki na sararin samaniya wanda aka cika da iska a asali bayan kayan yana shayar da danshi, yana haifar da tasiri mai tasiri na thermal don karuwa sosai.

3. Girman girma: Girman girma shine alamar kai tsaye na porosity na kayan.Tun da yanayin zafi na lokacin gas yawanci ƙasa da na ƙaƙƙarfan lokaci, kayan daɗaɗɗa na thermal suna da babban porosity, wato, ƙananan ƙananan yawa.A ƙarƙashin yanayi na al'ada, haɓaka pores ko rage yawan yawa zai haifar da raguwar haɓakar thermal.

4. Barbashi Girma na sako-sako da abu: A dakin da zafin jiki, thermal conductivity na sako-sako da abu rage a matsayin barbashi size ragewa.Lokacin da girman barbashi ya yi girma, girman ratar da ke tsakanin barbashi yana ƙaruwa, kuma yanayin zafi na iska a tsakanin zai ƙaru babu makawa.Karami girman barbashi, ƙarami ƙimar ƙimar thermal conductivity.

5. Matsayin zafi na zafi: Alakar da ke tsakanin zafin jiki da zafin zafi yana samuwa ne kawai a cikin kayan anisotropic, wato, kayan da ke da sassa daban-daban a wurare daban-daban.Lokacin da hanyar canja wurin zafi ya kasance daidai da hanyar fiber, aikin haɓakar thermal yana da kyau fiye da lokacin da yanayin zafi ya kasance daidai da hanyar fiber;Hakazalika, aikin daɗaɗɗen thermal na kayan aiki tare da adadi mai yawa na rufaffiyar pores kuma ya fi wannan tare da manyan buɗaɗɗen pores.Stomatal kayan an kara raba kashi biyu iri: m kwayoyin halitta tare da kumfa da kuma m barbashi a kadan lamba tare da juna.Daga hangen nesa na tsari na kayan fibrous, akwai lokuta guda biyu: shugabanci da zafin zafi yana da tsayi da kuma hanyar fiber da zafin zafi suna daidaitawa.Gabaɗaya, tsarin fiber na kayan rufewar fiber shine na ƙarshe ko kusa da na ƙarshe.Yanayin yawa iri ɗaya ɗaya ne, kuma yanayin zafinsa Ƙaƙƙarfan ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙanƙara ya fi ƙanƙanta da yanayin yanayin zafi na sauran nau'ikan kayan rufewar porous.

6. Tasirin cika iskar gas: A cikin kayan haɓakar thermal, yawancin zafi ana gudanar da shi daga iskar gas a cikin pores.Sabili da haka, ƙaddamarwar thermal na kayan daɗaɗɗen abu an ƙaddara shi da nau'in iskar gas.A cikin injiniyan ƙananan zafin jiki, idan helium ko hydrogen ya cika, ana iya ɗaukarsa a matsayin ƙima na farko.An yi la'akari da cewa yanayin zafi na kayan da aka rufe yana daidai da yanayin zafi na wadannan iskar gas, saboda yanayin zafi na helium ko hydrogen yana da girma.

7. Kimanin iyawar zafi: takamaiman ƙarfin zafi na kayan masarufi yana da alaƙa da ƙarfin sanyaya (ko zafi) da ake buƙata don sanyaya da dumama na insulating tsarin.A ƙananan yanayin zafi, ƙayyadaddun ƙarfin zafi na duk daskararrun ya bambanta sosai.A karkashin yanayin zafi na al'ada da matsa lamba, ingancin iska bai wuce 5% na kayan rufewa ba, amma yayin da zafin jiki ya ragu, yawan iskar gas yana karuwa.Sabili da haka, ya kamata a yi la'akari da wannan factor lokacin ƙididdige kayan aikin thermal da ke aiki a ƙarƙashin matsa lamba na al'ada.

8. Ƙimar haɓakar haɓakar layi: Lokacin ƙididdige ƙarfi da kwanciyar hankali na tsarin rufi a cikin aiwatar da sanyaya (ko dumama), yana da muhimmanci a san ma'auni na fadada layin layi na kayan rufewa.Idan madaidaicin faɗakarwar faɗaɗawar kayan daɗaɗɗen thermal ɗin ya fi ƙanƙanta, tsarin ƙirar thermal ɗin ba shi da yuwuwar lalacewa saboda haɓakar zafi da ƙanƙancewa yayin amfani.Ƙididdigar faɗaɗa madaidaiciyar mafi yawan kayan rufin zafi yana raguwa sosai yayin da zafin jiki ya ragu.