Lissafin Kariya
Kafin amfani da moling mai narkewa, don ƙarin fahimtar aikinta, a zahiri, ƙarshen sanyi na hanzarta, akwai su zafi daga kewayen, akwai biyu Joule Deck QJ; Sauran shine zafi qk. A halin yanzu wucewa cikin ciki na thermeclecrics don samar da Joule zafin, rabin zafin da aka watsa daga ƙarshen zafi ga sanyi karshen.
Coldwararrawar Cold QC = Qπ-QJ-Qk
= (2p-2n) .tc.i-1 / 2j²r-k (th-tc)
Inda r yana wakiltar jimlar juriya da kalau da k shine jimlar jimlar aikin da ke faruwa.
Zafi watsawa daga zafin QH = Qπ + QJ-Qk
= (2p-2n) .th.i + 1 / 2i²r-k (th-tc)
Ana iya gani daga abubuwan da aka tsara na sama da ke sama da wutar lantarki ita ce ta bambanci tsakanin zafin rana da zafi.
Qh-qc = i²r = p
Daga cikin dabara na sama, ana iya yanke hukunci cewa 'yan matan wuta qh sun yi daidai da adadin wutar lantarki da fitowar sanyi, kuma a yanke hukunci cewa QC fitarwa QC daidai yake da banbanci tsakanin zafin rana ta fito da ƙarshen wutar lantarki da wutar lantarki.
QH = P + QC
QC = qh-p
Hanyar ƙididdigar hanyar matsakaiciyar ƙarfin narkewa
A.1 Lokacin da zazzabi a ƙarshen zafi th shine 27 ± 1 ℃, Bambancin zafin jiki shine △ t = 0, kuma i = ima.
Matsakaicin ƙarfin sanyi mai laushi mai laushi (W) bisa ga dabara (1): Qcmax = 0.07Ni
Inda n - logarithm na na'urar kwayar cutar, ni - iyakar zazzabi na yanzu na na'urar (a).
A.2 Idan zazzabi na zafi na zafi shine 3 ~ 40 ℃, ya kamata a gyara mafi girman ikon qmax (w) a gwargwadon tsari (2).
Qcmax = qcmax × [1 0.0042 (th - 27)]
(2) a cikin dabara: qcmax - zafi surcizing th = 2 27 ℃ ± 1 ℃) Powerarfin sanyi
Tes1-12106t125 bayani
Saurayi mai zafi shine 30 c,
Imax: 3a,
Umax: 14.6v
Qmax: 50.8 w
Delta T Max: 67 c
ACR: 2.1 ± 0.1ohm
Girma: 48.4x36.2x3.3mm, girman ramin rami: 30x17.8mm
Tufafin: An rufe ta 704 RTV (farin launi)
Waya: 20WG PVC, jure yanayin zazzabi 80 ℃.
Wire tsawon: 150mm ko 250mm
Littafin Tarihi: Bayyanar Briisuride
Lokaci: Oct-19-2024
