A al'ada ce a yi amfani da hanyar samun iska a tsaye don sanyaya kaji a lokacin zafi. Don noman ƙwai mai yawan yawa, saurin iska a cikingidan kazaYa kamata ya kai aƙalla mita 3/s, kuma saurin iska a gidan kaza a wuraren da ke da zafi da zafi ya kamata ya kai fiye da mita 4/s domin samun ingantaccen "sauƙin sanyaya iska".
"Tasirin sanyaya iska" galibi yana nufin saurin iska don rage zafin jiki na kaji.
Yaya tasirin saurin iska zai iya yi wa zafin jikin kaji?
"A cewar wani bincike da Jami'ar Georgia ta gudanar, saurin iska ya karu daga 0m/s zuwa 2.54m/s. Zafin jikin kaji zai ragu da fiye da 6m/s."°C.
Domin samun saurin iska mai yawa, ni ne abin da na saba yi shi ne in yigidan kazarufi, rage tsayin gidan kaji, ko kuma daga saman gidan kaji a kan rufin mai kusurwa uku a tsaye ƙasa da kowace tazara don sanya labulen hana iska ko hana iska don rage yankin da ke tsakanin gidan kaji don inganta saurin iska a cikin gidan.
Me yasa ake yin haka, musamman saboda saurin iska yana da alaƙa da yankin giciye nagidan kaza.
Lissafin saurin iska a cikin gidan kaza mai iska mai tsayi: saurin iska = girman iska / yanki na giciye na gidan
A bayyane yake daga wannan dabarar cewa don ƙara saurin iska na gidan, ko dai a ƙara iskar gidan, wato a ƙara yawan fanfunan da ke jure matsin lamba, ko kuma a rage yankin da ke tsakanin sassan gidan.
Ƙara fanka yana nufin ƙara farashi, ƙara yawan amfani da wutar lantarki, ƙara farashin gyara, da kuma ƙara yawan kuɗaɗen aiki ga kamfanin a cikin dogon lokaci.
Sannan ya kamata a yi la'akari da ƙara saurin iska daga rage yankin giciye nagidan kazaA ƙasa mun fahimci canje-canjen gidan kaji kafin da kuma bayan ƙara labulen toshe iska ta hanyar takamaiman lissafi.
Misali: gidan kaza mai faɗin mita 12, tsawon mita 100, bangon gefe na gidan yana da tsayi mita 2.4, tsakiyar gidan (mafi girma) shine mita 4.8, an sanya gidan tare da fanka mai inci 10 50, iskar da kowanne fanka ke iya samu a -50 Pa ita ce mita 31000.³/h.
Sannan saurin iskar gidan kaji ya kamata ya zama: saurin iska = girman iska / yankin giciye = 31000 / 3600× 10 / [12]× (4.8 + 2.4) / 2] = 86.1/43.2 = 1.99m / s
Idan muka sanya rufin ko labulen iska a cikin gidan kaza, ta yadda tsayin saman gidan ko gefen ƙasan labulen daga ƙasa ya kai mita 3.6, kuma tsayin ɓangarorin biyu na gidan ba ya canzawa, saurin iska shine = 31000/3600×10/[12]×(3.6+2.4)/2]=86.1/36=2.39m/s
Saboda haka, idan aka samu irin wannan adadin fanka, ta hanyar rage yankin giciye na gidan kaji zai iya ƙara saurin iska bisa ga asalin 0.4m/s, wato, ingancin ya ƙaru da kashi 20%, canjin saurin iska da tasirin sanyaya iska ya haifar shi ma ya bambanta, bambancin da ke tsakanin tasirin sanyaya iska guda biyu ya yi daidai da zafin jiki na kimanin digiri 2.℃, idan akwai yanayin zafi mai tsanani, bambancin zafin jiki na 2℃ya isa ya haifar da mummunar illa ga kaji.
Lokacin Saƙo: Agusta-12-2022
