【正文】 ?ude （湍流） 330 00 ?????? ?? ?Cp 殼程中水被加熱，則 w0 ?μμ 。排列， Ft= Np=6 )( 2i mA ? smV is 360070000Vu i ???? 10 3 ?? ???? ?i iiii ud ? ? 設(shè)管壁粗糙度 ε =，則ε /di=??8 查圖得： λ = 摩檫系數(shù)λ與雷諾數(shù) Re 及相應(yīng)粗糙度ε /d 的關(guān)系 所以 )( 221 paudLP ii ????????? ?? 換熱器的設(shè)計 水冷卻牛奶 第 16 頁 )( 222 pauP ii ??????? ? 則： k p ak p apaNFppP pt)()( 21i??????????? 管程流體壓強(qiáng)在允許范圍之內(nèi)。 七、輔助設(shè)備的計算及選型 管箱 因為 DN=1200mm≥ 900mm 之間，所以應(yīng)選封頭管箱。 Nc=27 取隔板間距 B=450mm 61 ????? BLN B折流板數(shù)目 、接管 換熱器的設(shè)計 水冷卻牛奶 第 18 頁 ① 程流體進(jìn)出口接管：取接管內(nèi)牛奶流速 u1=，則接管內(nèi)徑為 mmmuv 7000044d111 ????? ??? ? ②殼程流體進(jìn)出口接管：取接管內(nèi)冷卻水流速 u1=，則接管內(nèi)徑為 mmmuv 4 5 0 .7 54 5 0 7 5 .7 244d 10 5222 ????? ???? ? 、導(dǎo)流筒 殼程流體的進(jìn)出口 和管板間必須存在有一段流體不能流動的空間（死角），為了提高傳熱效果，常在管束外增設(shè)導(dǎo)流筒，使流體進(jìn)出殼程時必然經(jīng)過這個空間。 s） 310?? 310?? 熱導(dǎo)率（ W/m 十 參考文獻(xiàn) ??1 乳與乳制品工藝學(xué)，張?zhí)m威主編，中國農(nóng)業(yè)出版社 ??2 食品工程原理 ，趙思明主編，科學(xué)出版社。 ??6 化工原理（第二版上冊），天津大學(xué)出版社 ??7 [1]《化工原理》（第二版） 柴誠敬 主編 天津大學(xué)化工學(xué)院；高等教育 出版社 2021 ??8 、食品工程原理，劉成梅 羅舜菁 張繼鑒主編，化學(xué)工業(yè)出版社。t appealed against the disciplinary action your employer has taken against you. However, if you win your case, the tribunal may reduce any pensation awarded to you as a result of your failure to appeal. Remember that in most cases you must make an application to an employment tribunal within three months of the date when the event you are plaining about happened. If your application is received after this time limit, the tribunal will not usually accept it. If you are worried about how the time limits apply to you, take advice from one of the anisations listed under Further help. Employment tribunals are less formal than some other courts, but it is still a legal process and you will need to give evidence under an oath or affirmation. Most people find making a claim to an employment tribunal challenging. If you are thinking about making a claim to an employment tribunal, you should get help straight away from one of the anisations listed under Further help. If you are being represented by a solicitor at the tribunal, they may ask you to sign an agreement where you pay their fee out of your pensation if you win the case. This is known as a damagesbased agreement. In England and Wales, your solicitor can39。s 150th anniversary celebrations and will attend City39。s governing body, has also ordered an immediate investigation into the referee39?；蛟S是愧疚于自己似乎把轉(zhuǎn)瞬即逝的很多個不同的日子過成了同一天的樣子；或許是追溯過去，對自己那些近乎偏執(zhí)的怪異信念的醒悟，這些天以來，思緒一直很凌亂，在腦海中不斷糾纏。 Junior high school, thought to have a crush on just means that the real growth, but over the past three years later, his writing of alumni in peace, suddenly found that isn39。t remember his appearance. 童年時，覺得壓歲錢和新衣服是過年必備，但是隨著年齡的推進(jìn)，會越來越發(fā)現(xiàn)，那些東西根本就可有可無；初中時，以為要有一場暗戀才意味著真正的成長，但三年過去后，自己心平氣和的寫同學(xué)錄的時候，突然就發(fā)現(xiàn)是不是真正的成長了，好像并沒有那么重要了；然后到了高中，覺得非要吐露出自己的心聲才能為高中生涯里的懵懂情愫劃上一個句點，但畢業(yè)晚會的時候最終還是被梗塞在了咽喉，后來再次站在他曾經(jīng)揮汗如雨的球場，看著他投過籃球的球框時，突然間發(fā)現(xiàn)自己已經(jīng)想不起他的容顏。想要的，不想要的，界限明確，好像沒有什么可以撼動自己。 At the moment, the sky is dark, the air is fresh factor after just rained. Suddenly thought of blue plaid shirt。t start planning... Those years, those days of do, finally, like youth, will end in our life. 此刻，天空是陰暗的，空氣里有著剛下過雨之后的清新因子。s not needed. Instead, he plans to deploy his 270squarefoot (25squaremeter) main chute at an altitude of around 5,000 feet (1,524 meters). In order to deploy this chute successfully, he will have to slow to 172 mph (277 kph). He will have a reserve parachute that will open automatically if he loses consciousness at mach speeds. Even if everything goes as planned, it won39。 Baumgartner the disappointing news: Mission aborted. r plays an important role in this mission. Starting at the ground, conditions h