nkhani

Ili ndi funso labwino kwambiri lomwe limakhudza phata la momwe kapangidwe kazinthu zimakhudzira magwiridwe antchito.

Mwachidule,chowonjezera galasi CHIKWANGWANI nsalusagwiritsa ntchito ulusi wagalasi wokhala ndi kukana kutentha kwambiri. M'malo mwake, mawonekedwe ake apadera "okulitsidwa" amakulitsa kwambiri mphamvu zake zonse zotchinjiriza ngati "nsalu". Izi zimathandiza kuteteza zinthu zapansi pamadzi m'malo otentha kwambiri ndikuteteza ulusi wake kuti usawonongeke mosavuta.

Mutha kuzimvetsa motere: Onsewa amagawana "chinthu" chagalasi chofanana ndi kutentha kofanana, koma "mapangidwe" amalola kuti nsalu yokulirapo izichita bwino kwambiri pakutentha kwambiri.

Pansipa, tikufotokozera mwatsatanetsatane chifukwa chake "kukana kutentha" kumakhala kopambana kudzera mu mfundo zingapo zofunika:

1. Chifukwa Chake: Kusintha Kwamapangidwe - "Fluffy Air Layers"

Ichi ndiye chinthu chofunikira kwambiri komanso chofunikira kwambiri.

• Nsalu yokhazikika yagalasi ya fiberglass imalukidwa mwamphamvu kuchokera ku ulusi wopindika ndi wa weft, ndikupanga mawonekedwe owundana okhala ndi mpweya wochepa wamkati. Kutentha kumatha kusuntha mwachangu kudzera mu ulusi womwewo (solid thermal conduction) ndi mipata pakati pa ulusi (thermal convection).
• Nsalu ya fiberglass yowonjezeraamapatsidwa chithandizo chapadera "chokulitsa" pambuyo pa kuluka. Ulusi wake umakhala wokhazikika, pomwe ulusi wowongoka ndi ulusi wotalikirapo (wotayirira kwambiri). Izi zimapanga matumba ang'onoang'ono osawerengeka, osalekeza mkati mwa nsalu.

Air ndi insulator yabwino kwambiri. Ma thumba a mpweya osasunthika bwino awa:

• Kulepheretsa matenthedwe conduction: Kuchepetsa kwambiri kulumikizana ndi njira zotumizira kutentha pakati pa zinthu zolimba.
• Kanikizani kusuntha kwamafuta: Zipinda zazing'ono za mpweya zimatsekereza kuyenda kwa mpweya, ndikudula kutengera kutentha kwa convective.

2. Kupititsa patsogolo Chitetezo cha Thermal Performance (TPP) - Kuteteza Zinthu Zotsika

Chifukwa cha wosanjikiza wotenthetsera wa mpweya wabwino kwambiriwu, pamene magwero otentha kwambiri (monga malawi kapena chitsulo chosungunula) agunda mbali imodzi ya nsalu yowonjezedwa, kutentha sikungathe kulowa mbali inayo.

• Izi zikutanthauza kuti zovala zosagwira moto zomwe zimapangidwa kuchokera pamenepo zimatha kuteteza kutentha kwa khungu la ozimitsa moto kwa nthawi yaitali.
• Zofunda zowotcherera zomwe zimapangidwa kuchokera pamenepo zimateteza bwino kuti zipsera ndi slag zosungunula zisayatse zinthu zoyaka zomwe zili pansipa.

"Kutentha kwake" kumawonekera bwino kwambiri mu mphamvu yake ya "thermal insulation". Kuyesa kukana kwake kwa kutentha sikumangoyang'ana nthawi yomwe imasungunuka, koma momwe kutentha kwakunja kungathe kupirira ndikusunga kutentha kotetezeka kumbali yake yakumbuyo.

3. Kuwongoleredwa kwa Thermal Shock Resistance - Kuteteza Zingwe Zake Zomwe

• Nsalu zowundidwa wamba zikakumana ndi kugwedezeka kwa kutentha kwambiri, kutentha kumadutsa mu ulusi wonse, kupangitsa kutentha kofanana ndikufikira mwachangu pofewetsa.
• Kapangidwe kansalu kokulitsidwa kumalepheretsa kutentha kwanthawi yomweyo kumitundu yonse. Ngakhale kuti ulusi wapamwamba ukhoza kutentha kwambiri, ulusi wakuya umakhalabe wozizira kwambiri. Kutentha kosiyana kumeneku kumachepetsa kutentha kwa zinthu zonse, kumapangitsa kuti zisawonongeke. Zili ngati kugwedeza dzanja mofulumira pa lawi la kandulo popanda kuyaka, komabe kugwira nyale kumavulaza nthawi yomweyo.

4. Kuwonjezeka kwa Kutentha Kwambiri Dera

Pamwamba pansalu yowonjezedwa, wosafanana, wonyezimira umapereka malo okulirapo kuposa nsalu wamba yosalala. Pa kutentha komwe kumaperekedwa ndi ma radiation (mwachitsanzo, cheza cha ng'anjo), malo okulirapo awa amatanthauza kutentha kochulukirapo kumawonekeranso m'malo momwedwa, kupititsa patsogolo mphamvu yotchinjiriza.

Fanizo la Kumvetsetsa:

Tangoganizani mitundu iwiri ya makoma:

1. Khoma la njerwa lolimba (lofanana ndi nsalu wamba ya fiberglass): Ndilo lolimba komanso lolimba, koma lokhala ndi zotsekereza.

2. Khoma kapena khoma lodzaza ndi thovu lotsekereza (lofanana ndinsalu yowonjezera ya fiberglass): Kutentha kwapakhoma kwachilengedwe sikusintha, koma chiphuphu kapena thovu (mpweya) kumapangitsa kuti khoma lonse lizigwira ntchito bwino.

Chidule:

Chifukwa chake, mawu omaliza ndi awa: "Kukana kutentha kwambiri" kwa nsalu yowonjezera ya fiberglass makamaka imachokera kuzinthu zake zodzitchinjiriza chifukwa cha mawonekedwe ake opepuka, m'malo mwakusintha kwamankhwala aliwonse mu ulusi womwewo. Imakwaniritsa ntchito m'malo otentha kwambiri mwa "kudzipatula" kutentha, potero kudziteteza yokha ndi zinthu zotetezedwa.