Rau qhov loj zog ntawm cov qhov rooj thiab qhov rai
1. thermal rwb thaiv tsev, lossis K nqi
2. cua tsis kam
3. Dej tsis qab ntsev
4. huab cua nruj
5. nruab hnub nrig
6. suab nrov rwb thaiv thiab suab nrov txo
I. Dab tsi yog K nqi ntawm lub qhov rooj thiab qhov rai?
1. lub tswvyim: K tus nqi tseem hu ua tshav kub hloov coefficient, yav tas los hu ua tag nrho cov nyiaj hloov kub hloov ua kom sib tshooj. Cov qauv thiab cov qauv hauv tebchaws niaj hnub no yog cov qauv hu ua hloov tshav kub coefficients. K tus nqi ntawm cov tshav kub hloov coefficient yog hais txog qhov hloov cov cua kub mus txog thaj tsam 1 square meter thaj tsam li 1 teev ntawm huab cua kub qhov sib txawv ntawm ob sab ntawm cov txheej txheem cua sov ua kom ruaj khov, nyob hauv chav ntsuas watt / square meter (W / K, ℃ K).
K ntawm tshav kub hloov coefficient ntawm ntau cov qhov rooj thiab qhov rai khoom (W / K)
General txhuas alloy profile: 6.6
Rwb thaiv tsev aluminium profile: 4.0
Ntoo qhov rai: 1.8
Glass iav dawb: 5.5 (5+12 A+5) iav dawb hli: 2.8
(5+9 A+5) Daim iav iav hauv ㎜: 3.0
(5+6 A+5) Daim iav iav hauv hli: 3.2
Cov txheej txheem yooj yim rau xam K tus nqi ntawm lub qhov rooj thiab qhov rai (huab cua nruj tsis suav nrog)
Ntawm cov qhov rooj dav dav thiab cov qhov rai, qhov sib piv ntawm qhov chaw profile yog li 25%, qhov sib piv ntawm cov cheeb tsam iav yog li 75%, thiab K tus nqi ntawm tshav kub hloov coefficient ntawm txhua hom qhov rooj thiab lub qhov rais tau muab xam raws li hauv qab no:
Ua kom zoo nkauj aluminium alloy profile qhov rooj thiab qhov rai: K = 6.6 × 25+2,75 = 3.75
Thermal rwb thaiv tsev aluminium profile qhov rooj thiab qhov rai: K = 4.0 × 25+2.8 × 75% 3.10
Muab xam cov qauv ntawm tshav kub ntawm qhov rooj thiab lub qhov rais
Kev tshav kub kub tag nrho ntawm lub qhov rais tau suav nrog lub tshav kub hloov coefficient K tus nqi ntawm 3.5 W / (K), cua sov sab nraum zoov kub txog 0 ℃ thiab cua kub sab hauv tsev tsim qhov kub ntawm 20 (ceeb toom: tsis suav nrog cov cua sov ua rau los ntawm huab cua to):
3.5×(1.2×1.5)×20=126
II.Dab tsi yog qhov cua siab tsis kam ntawm cov qhov rooj thiab lub qhov rais?
Cov Tswv Yim: cua siab ua hauj lwm hais txog lub peev xwm ntawm lub qhov rais kaw kom tsis txhob muaj kev puas tsuaj thiab tsis ua hauj lwm hauv qab cua. Qhov ntsuas no yog qhov tseem ceeb ntawm peb qhov tseem ceeb ntawm lub cev qhov rooj ntawm qhov rooj thiab lub qhov rais. Qhov rooj thiab qhov rai cua siab tsim qauv tsim ua raws li GB 50009 《Lub tsev teeb tsa chaw thau khoom Code ntsig txog qhov yuav tsum tau ua.
III.Dab tsi yog qhov watertightness ntawm lub qhov rooj thiab lub qhov rais?
Cov dej kaw ntom ntom yog hais txog lub peev xwm ntawm cov kaw qhov rais sab nraud kom tsis txhob Los nag Cov dej txeem raws li kev ua ntawm cov cua thiab nag. Qhov ntsuas no yog ib qho ntawm peb qhov yooj yim lub cev ntawm lub qhov rooj thiab lub qhov rais.
IV.Dab tsi yog qhov airtightness ntawm lub qhov rooj thiab qhov rais?
Kev tswj cua ntawm lub cev yog hais txog lub peev xwm ntawm sab nraud (qhov rooj) qhov rai kom tiv thaiv cua nkag mus hauv lub xeev kaw. Qhov ntsuas no yog ib qho ntawm peb qhov yooj yim lub cev ntawm lub qhov rooj thiab lub qhov rais.
V.Lub nruab hnub ntawm cov qhov rooj thiab cov qhov rai yog dab tsi?
Tswv yim: kev nruab hnub nrig yog hais txog lub hnub ci thiab lub hnub ci. Lub teeb coefficient: qhov piv ntawm thaj chaw qhib ntawm lub qhov rais tsev mus rau hauv pem teb chaw ntawm thaj chaw. Hauv cov tuam tsev dav dav qhov rooj thiab qhov rai, qhov feem ntawm qhov profile ntawm tus kheej yog thaj tsam 25, iav thaj tsam yog thaj tsam li 75,
VI.Lub suab rwb thaiv tsev ua tau zoo li cas ntawm cov qhov rooj thiab qhov rai?
Lub suab rwb thaiv kev ua tau zoo ntawm lub qhov rooj thiab lub qhov rais hais txog lub peev xwm ntawm cov qhov rooj thiab qhov rais kom tsis muaj zog lub suab tawm los ntawm cov suab tawm rau cov mloog.
Tam sim no, lub teb chaws tus qauv, kab tus qauv tsis muaj lub qhov rooj thiab lub qhov rai suab rwb thaiv tsev kev kawm ua yuav tsum tau ua.