تـأثیر سطح مقطع بر پـارامترهای تـرمودینامیکی
فصل اول: کليـات
1-1- مقدمه ..........................................................................................................2
1-2- منابع حرارتی..........................................................................................................5
1-3-کاربرد مبدلهای حرارتی ................................................................................................6
فصل دوم:اجـزای مبـدل
2-1SHELL..............................................................................................................8
2-2- TUBE BUNDEL ................................................................................................8
2-3- TUBE.......................................................................................................................9
2-4- TUBE SHEELT ..................................................................................................10
2-4-1- TUBE SHEELT...........................................................................................10
2-4-2- TUBE SHEELT / TUBE SHEELT LAYOUT ......................................10
2-5- BAFFLE...............................................................................................................11
2-5-1- بفل عرضی ...........................................................................................................11
2-5-2- بفل طولی ...........................................................................................................12
2-5-3- SUPPORT TYPE .............................................................................................13
2-5-4- IMPINGEMENT BAFFLE .........................................................................13
2-5-5-Baffle spacing .................................................................................................14
2-6- TIE ROD&SPACER ..........................................................................................14
2-7- EXPANSION JOINT...........................................................................................15
2-8- فین و نقش آن در مبدل ..........................................................................................................16
2-9- تعداد گذر در مبدل ..........................................................................................................17
فصـل سوم:انـواع مبدل
3-1- از نظر شرایط تماس ..........................................................................................................19
3-2- از نظر جهت جریان ..........................................................................................................20
3-2-1- جریان هم جهت (co-current) ..............................................................................20
3-2-2- جریان مخالف (counter current ) ......................................................................20
3-2-3- جریان عمود(cross current) ................................................................................21
3-3 - انواع مبدلهای حرارتی بر اساس نوع ساختمان و نحوه عملکرد ...........................................22
3-3-1- مبدل های حرارتی لوله ای (tube" heat exchanger") ........................................22
3-3-2 مبدل های حرارتی صفحه ای (("plate" heat exchanger ......................................31
3-4-انواع خاص ..........................................................................................................32
3-4-1- Bayonet..........................................................................................................32
3-4-2- Double tube sheet..........................................................................................33
3-4-3- Double Bundle..........................................................................................................33
3-5 -از نظر استاندارد TEMA..........................................................................................................34
3-5-1- stationary head..........................................................................................................34
3-5-2- Sell..........................................................................................................34
3- 5-3- rear head ..........................................................................................................35
فصل چهارم:بعضی از خصوصیات مبدلهای حرارتی
4-1- BET ..........................................................................................................38
4-2 - AES..........................................................................................................39
4-3 - BEP..........................................................................................................40
4-4- BEM..........................................................................................................40
4-5- BEU ..........................................................................................................41
4-6- AEW..........................................................................................................42
4-7 -طراحی سفارشی ..........................................................................................................43
4-7-1- نوع اول ..........................................................................................................43
4-7-2- نوع دوم ..........................................................................................................44
فصل پنجم:كاربردهاي عملياتي مبدل
5-1-کندانسور...................................................................................................................47
5-3- ریبویلرkettle ..........................................................................................................48
5-4 کولر ..........................................................................................................50
5-5 -هیتر ..........................................................................................................50
5-6 - چیلر ..........................................................................................................51
فصل ششم:تحليل و طـراحی بـه وسیله نـرم افزار GAMBIT
6-1- طراحی به وسیله نرم افزار Gambit............................................................................54
6-2-تعریف هندسه مسئله..................................................................................................54
6-2-1-ایجاد راس..........................................................................................................54
6-2-2-ایجاد ضلع..........................................................................................................55
6-2-3- ایجاد صفحه......................................................................................................................56
6-2-4- مش بندی شکل..........................................................................................................57
6-2-5- تعیین شرایط مرزی.....................................................................................................59
6-2-6- ذخیره نمونه طراحی شده............................................................................................62
6-3- تحلیل به وسیله نرم افزار Fluent....................................................................................62
6-4- نتیجه گیری..................................................................................................................72
پيوست
منابع و مأخذ .........................................................................................................................78