-25 ℃ Qhov kub qis txias cia khoom

Cov duab chav cia khoom kub qis Qhov kub cia ntawm chav cia khoom kub qis feem ntau yog: -22 ～ -25 ℃. 

Vim tias qee yam khoom noj xws li ice cream thiab cov khoom noj ntses thiab lwm yam khoom noj nqaij yuav tsum tau khaws cia rau qhov kub ntawm -25 ° C ua ntej lawv yuav tsis lwj, yog tias ice cream khaws cia rau hauv qab 25 ° C, nws cov ntxhiab tsw yuav ploj mus; qhov saj thiab saj tsis zoo dua; qhov tshwj xeeb ntawm kev khaws cia qhov kub qis yog: cov khoom noj maj mam muab tso rau hauv qhov chaw txias los ntawm lub sijhawm mus rau lub sijhawm. Tom qab ib lub sijhawm, qhov kub ntawm qhov chaw txias ncav cuag -25 ℃. Tsis muaj qhov yuav tsum tau tshwj xeeb rau lub sijhawm no. Qhov kub khaws cia muaj cov kev cai nruj, ntawm -22 ℃ ～ 25 ℃, qhov no yog qhov chaw khaws cia qhov kub qis ib txwm muaj.

Txoj kev xam qhov muaj peev xwm cia khoom txias

● Kev xam qhov hnyav ntawm qhov chaw cia khoom txias:

1. Qhov hnyav ntawm qhov chaw cia khoom txias = qhov ntim sab hauv ntawm chav cia khoom txias × qhov siv tau ntawm qhov ntim × qhov hnyav ntawm cov khoom noj.

2. Qhov ntim sab hauv ntawm chav cia khoom txias ntawm qhov chaw cia khoom txias = qhov ntev sab hauv × dav × siab (cubic)

3. Qhov siv tau ntawm qhov chaw txias:

500 ~ 1000 cubic meters = 0.40

1001 ~ 2000 cubic = 0.50

2001 ~ 10000 cubic meters = 0.55

10001 ~ 15000 cubic meters = 0.60

● Qhov hnyav ntawm cov khoom noj:

Nqaij khov = 0.40 tons/cubic

Cov ntses khov = 0.47 tons/cubic

Cov txiv hmab txiv ntoo thiab zaub tshiab = 0.23 tons/m3

Tshuab ua dej khov = 0.75 tons/cubic

Cov qhov yaj khov = 0.25 tons/cubic

Nqaij tsis muaj pob txha lossis cov khoom seem = 0.60 tons/cubic

Cov nqaij qaib khov hauv cov thawv = 0.55 tons/m3

● Txoj kev xam ntawm qhov ntau ntawm cov khoom khaws cia txias:

1. Hauv kev lag luam khaws khoom, cov qauv rau kev xam qhov ntim cia siab tshaj plaws yog:

Qhov ntim ntawm cov khoom siv tau (m3) = tag nrho cov khoom siv (m3) X0.9

Qhov ntim cia siab tshaj plaws (tons) = tag nrho qhov ntim sab hauv (m3) / 2.5m3

2. Qhov ntim cia siab tshaj plaws ntawm kev khaws cia txias ntawm lub xov tooj ntawm tes

Qhov ntim ntawm cov khoom siv tau (m3) = tag nrho cov khoom siv (m3) X0.9

Qhov ntim cia siab tshaj plaws (tons) = tag nrho qhov ntim sab hauv (m3) X (0.4-0.6) / 2.5m3

0.4-0.6 yog txiav txim siab los ntawm qhov loj thiab qhov cia ntawm qhov chaw txias.

3. Qhov ntim cia khoom siv txhua hnub tiag tiag

Yog tias tsis muaj lub npe tshwj xeeb, qhov ntim khoom khaws cia txhua hnub yog xam ntawm 15% lossis 30% ntawm qhov ntim khoom khaws cia siab tshaj plaws (tons) (feem ntau 30% yog xam rau cov uas tsawg dua 100m3).