Kendi kendine soğuyan transformatörlerde radyatörlerin sıcaklık ve basınç düşümü hesabı
Temperature and pressure drop calculation in radiators of self-cooled transformers
- Tez No: 39801
- Danışmanlar: PROF.DR. NURDAN GÜZELBEYOĞLU
- Tez Türü: Yüksek Lisans
- Konular: Elektrik ve Elektronik Mühendisliği, Electrical and Electronics Engineering
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 1994
- Dil: Türkçe
- Üniversite: İstanbul Teknik Üniversitesi
- Enstitü: Fen Bilimleri Enstitüsü
- Ana Bilim Dalı: Belirtilmemiş.
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: 80
Özet
w AQ p c A0, (6) CO w: Oil velocity [m/s] It can be seen that the oil velocity is inversly proportional to difference temperature A8C0 of radiator inlet and outlet oil temperature. When the oil velocity is doubled, A8C0 reduces at the same proportion and the surface temperature drop is decreased %88. When the heat dissipated of one radiator element P is doubled, the surface temperature drop is increased to 1,655 times its original. The oil velocity and viscosity in the radiators causes the pressure drop: Ap C v al *o \,Po n z ) + B' zz \2,Po n z> (7 C'= 48,5 x 10s x ht [itTekg] hr Po n z: B t_ : Radiator length [m] : Axial averege viscosity of the oil [m2/s] : Mean density of oil flowing in radiators [kg/m3] : Number of radiator groups mounted on a tank of a transformer : Number of elements which is arrenged one behind another in each radiator group 5, 63 x 106 [m~7 kg] In conclusion it should be chosen radiators by being made use of diagrams and tables which is used in practice then, be checked the truth of the radiators choice by being calculated the temperature and pressure drop. Thus, as a result of the following reasons: 1) Economical problems IX
Özet (Çeviri)
2) Endurance of transformers it is obtained the best solution for both customers and producers.w AQ p c A0, (6) CO w: Oil velocity [m/s] It can be seen that the oil velocity is inversly proportional to difference temperature A8C0 of radiator inlet and outlet oil temperature. When the oil velocity is doubled, A8C0 reduces at the same proportion and the surface temperature drop is decreased %88. When the heat dissipated of one radiator element P is doubled, the surface temperature drop is increased to 1,655 times its original. The oil velocity and viscosity in the radiators causes the pressure drop: Ap C v al *o \,Po n z ) + B' zz \2,Po n z> (7 C'= 48,5 x 10s x ht [itTekg] hr Po n z: B t_ : Radiator length [m] : Axial averege viscosity of the oil [m2/s] : Mean density of oil flowing in radiators [kg/m3] : Number of radiator groups mounted on a tank of a transformer : Number of elements which is arrenged one behind another in each radiator group 5, 63 x 106 [m~7 kg] In conclusion it should be chosen radiators by being made use of diagrams and tables which is used in practice then, be checked the truth of the radiators choice by being calculated the temperature and pressure drop. Thus, as a result of the following reasons: 1) Economical problems IX2) Endurance of transformers it is obtained the best solution for both customers and producers.w AQ p c A0, (6) CO w: Oil velocity [m/s] It can be seen that the oil velocity is inversly proportional to difference temperature A8C0 of radiator inlet and outlet oil temperature. When the oil velocity is doubled, A8C0 reduces at the same proportion and the surface temperature drop is decreased %88. When the heat dissipated of one radiator element P is doubled, the surface temperature drop is increased to 1,655 times its original. The oil velocity and viscosity in the radiators causes the pressure drop: Ap C v al *o \,Po n z ) + B' zz \2,Po n z> (7 C'= 48,5 x 10s x ht [itTekg] hr Po n z: B t_ : Radiator length [m] : Axial averege viscosity of the oil [m2/s] : Mean density of oil flowing in radiators [kg/m3] : Number of radiator groups mounted on a tank of a transformer : Number of elements which is arrenged one behind another in each radiator group 5, 63 x 106 [m~7 kg] In conclusion it should be chosen radiators by being made use of diagrams and tables which is used in practice then, be checked the truth of the radiators choice by being calculated the temperature and pressure drop. Thus, as a result of the following reasons: 1) Economical problems IX2) Endurance of transformers it is obtained the best solution for both customers and producers.
Benzer Tezler
- Kendi kendine soğuyan kuru tip güç transformatörlerinde sargı ısınma hesabına katkılar
Contributions to the calculation of winding temperature rise of the naturally cooled dry type power transformers
GÜVEN KÖMÜRGÖZ
Doktora
Türkçe
2002
Elektrik ve Elektronik Mühendisliğiİstanbul Teknik ÜniversitesiElektrik Makineleri Ana Bilim Dalı
PROF. DR. NURDAN GÜZELBEYOĞLU
- Fabrication and characterization of SOI based photodetectors with graphene electrode
Grafen elektrotlu SOI tabanlı fotodedektörlerin üretimi ve karakterizasyonu
ALPER YANILMAZ
Doktora
İngilizce
2023
Fizik ve Fizik Mühendisliğiİzmir Yüksek Teknoloji EnstitüsüFotonik Bilimi ve Mühendisliği Ana Bilim Dalı
PROF. DR. CEM ÇELEBİ
PROF. DR. SİNAN BALCI
- Experimental and numerical analysis of the thermoelectric cooling of photovoltaic panels
Fotovoltaik panellerin termoelektrik ile soğutulmasının deneysel ve sayısal analizi
ALI TALIB DAKHAL
Yüksek Lisans
İngilizce
2023
EnerjiAtatürk ÜniversitesiMakine Mühendisliği Ana Bilim Dalı
PROF. DR. KENAN YAKUT
- Kütahya ili Merkez ilçesindeki savatlı gümüş takılar
It is provided with documenting by researching the niello style applied to silver ornament it Kütahya
AYŞEN ARAT ÖZKUL
Yüksek Lisans
Türkçe
2004
El SanatlarıGazi ÜniversitesiGeleneksel Türk El Sanatları Ana Sanat Dalı
YRD. DOÇ. DR. TOMRİS KATLI
- Kahramanmaraşlı bir halk şairi İsa Karaturna'nın 8-10. şiir defterleri üzerine biçimsel ve tematik bir inceleme
8-10 of İsa Karaturna, a folk poet from Kahramanmaraş a stylical and thematic study on poetry notebooks
HALİL KARCI
Yüksek Lisans
Türkçe
2023
Halk Bilimi (Folklor)Kahramanmaraş Sütçü İmam ÜniversitesiTürk Dili ve Edebiyatı Ana Bilim Dalı
DOÇ. DR. KEMALETTİN KOÇ