Gawayi

Charcoal wani abu ne mai sauƙi wanda aka samar ta hanyar dumama dabba-linkid="13" href="./Wood" id="mwNQ" rel="mw:WikiLink" title="Wood">itace (ko wasu dabbobi da kayan shuka-shuke) a cikin ƙananan iskar oxygen don cire duk ruwa da masu saurin canzawa. A cikin al'adun gargajiya na wannan tsarin pyrolysis, wanda ake kira ƙone gawayi, sau da yawa ta hanyar samar da murhun gawayi, ana ba da zafi ta hanyar ƙone wani ɓangare na kayan farawa da kansa, tare da iyakantaccen isar da iskar oxygen. Hakanan za'a iya dumama kayan a cikin rufewar. briquettes na zamani "charcoal" da aka yi amfani da su don dafa abinci a waje na iya ƙunsar wasu kayan ƙari da yawa, misali kwal.https://en.wikipedia.org/wiki/Charcoal#References

Wannan tsari yana faruwa ta halitta lokacin da ƙonewa ba ta cika ba, kuma wani lokacin ana amfani dashi a cikin radiocarbon dating. Hakanan yana faruwa ba tare da saninsa ba yayin ƙone itace, kamar a cikin wuta ko murhu na itace. Wutar da ake gani a cikin waɗannan saboda ƙonewar iskar gas da aka fitar yayin da itace ya juya zuwa gawayi. Rashin da hayaki da aka saba bayarwa ta hanyar gobarar itace sakamakon ƙonewar da ba ta cika ba na waɗancan abubuwa masu tasowa. Kayan kwal yana ƙonewa a zafi jiki mafi girma fiye da itace, tare da kusan harshen wuta mai ganuwa, kuma yana fitar da kusan komai sai zafi, ruwa, da carbon dioxide.

Tarihi
Samar da gawayi a wuraren da akwai yalwar itace ya samo asali ne daga zamanin d ̄ a. Gabaɗaya yana farawa tare da ɗora takardun itace a kan iyakar su don samar da tarin conical. Ana barin buɗewa a kasa don shigar da iska, tare da tsakiya na tsakiya wanda ke aiki a matsayin hayaki. Dukan tarin an rufe shi da turf ko yumɓu mai laushi. Ana fara harbi a kasan hayaki, kuma a hankali yana yadawa waje da sama. Nasarar aikin ya dogara da yawan konewa. A karkashin matsakaicin yanayi itace yana ƙarar da kusan 60% gawayi ta hanyar girma, ko 25% ta hanyar nauyi;One or more of the preceding sentences incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Charcoal". Encyclopædia Britannica. Vol. 5 (11th ed.). Cambridge University Press. p. 856  ƙananan hanyoyin samarwa galibi suna samar da kusan 50% kawai ta hanyar girma.

Manazarta