Bilgisayar destekli sıvılı düzlemsel güneş kollektörlerinin optimizasyonu
Compute aided optimization of liguid flat-plate solar colectors
- Tez No: 24322
- Danışmanlar: PROF. DR. GÜRBÜZ ATAGÜNDÜZ
- Tez Türü: Yüksek Lisans
- Konular: Enerji, Energy
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 1992
- Dil: Türkçe
- Üniversite: Ege Üniversitesi
- Enstitü: Güneş Enerjisi Enstitüsü
- Ana Bilim Dalı: Enerji Teknolojisi Ana Bilim Dalı
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: 87
Özet
Abstract Of M.S. Thesis COMPUTER AIDED OPTIMIZATION OF LIQUID FLAT-PLATE SOLAR COLLECTORS M.S. Student : Hüseyin GONERHAN Supervisor : Prof. Dr. -Ing. Gürbüz ATAGÜNDüZ Abstract In Turkey the most common usage of natural and inexhaustible solar energy is done by liquid flat-plate collectors. There is no need complicated technology for manufacturing flat-plate collectors. Therefore there are cheaper than the other systems. In general they consist of one glass cover, one absorber plate which bears pipes, insulation material and one frame. Heat ing and hot water demand have been supplied by liquid flat- plate collectors. * Although in Turkey collectors are manufactured according to Turkish Standarts (TS 3680, TS 3817, TS 4801) one can find collectors with different quality and different sizes. In this present work, under all other constant remaining conditions, i.e., one or two parameters are taken variable and the others kept constant, the influence of the number of pipes, the distance between two pipes, the ratio of width/length of the collector and the material of the absorber plate on the thermal efficiency coefficient and the heat collected by the collector has been investigated theoretically using experimental data. The aim of this work is the design of an optimum liquid flat-plate solar collector with suitable properties such as width/lenght ratio, number ofpipes, distance between two pipes and material. In previous research works, the influence of the material, the material of absorbing plate, the thickness of the absorbing plate, the convective heat transfer coefficient in pipes; the liquid velocity in pipes, the geometry of pipes, the distance between the glass cover and the absorbing plate, the liquid properties, the insulation material and their thickness and the overall heat transfer coefficient on the thermal efficiency coefficient has been investigated, but the ratio of width/length, number of pipes and the distance between two pipes have been not discussed. In addition, at the moment, classically manufactured collectors by the firms which are available in the market have been investigated for the months May, June, July, August and September where the thermal efficiency coefficient curves have been compared under each other and the best thermal efficiency coefficient curve has been determined. In the 1st part of the present work mathematical modelling has been done which bases on the fin theory. By means of the fin theory correlation the outlet temperature of the water and the thermal efficiency coefficient have been calculated. In the second part of the work experiments, in the 3rd part the investigations in details and in the 4th part the results have been discussed. At the end this investigation it has been seen that the thermal efficiency coefficient of a liquid flat-plate solar collector is function of following parameters: - Material of absorbing plate and pipes, - Number of pipes, - The distance between two pipes, - The ratio of width/length, - Outside temperature, - The solar radiation intensity. The optimum liquid flat-plate collector has been obtained for the following data: - Width/Lenght = 1.4/1.4 = 1.0, - Number of pipes =13, - The distance between two pipes = 0.1038 m, - Material of the collector = Copper. The months in which the best thermal efficiency coefficient curve has been obtained are June and July.
Özet (Çeviri)
Abstract Of M.S. Thesis COMPUTER AIDED OPTIMIZATION OF LIQUID FLAT-PLATE SOLAR COLLECTORS M.S. Student : Hüseyin GONERHAN Supervisor : Prof. Dr. -Ing. Gürbüz ATAGÜNDüZ Abstract In Turkey the most common usage of natural and inexhaustible solar energy is done by liquid flat-plate collectors. There is no need complicated technology for manufacturing flat-plate collectors. Therefore there are cheaper than the other systems. In general they consist of one glass cover, one absorber plate which bears pipes, insulation material and one frame. Heat ing and hot water demand have been supplied by liquid flat- plate collectors. * Although in Turkey collectors are manufactured according to Turkish Standarts (TS 3680, TS 3817, TS 4801) one can find collectors with different quality and different sizes. In this present work, under all other constant remaining conditions, i.e., one or two parameters are taken variable and the others kept constant, the influence of the number of pipes, the distance between two pipes, the ratio of width/length of the collector and the material of the absorber plate on the thermal efficiency coefficient and the heat collected by the collector has been investigated theoretically using experimental data. The aim of this work is the design of an optimum liquid flat-plate solar collector with suitable properties such as width/lenght ratio, number ofpipes, distance between two pipes and material. In previous research works, the influence of the material, the material of absorbing plate, the thickness of the absorbing plate, the convective heat transfer coefficient in pipes; the liquid velocity in pipes, the geometry of pipes, the distance between the glass cover and the absorbing plate, the liquid properties, the insulation material and their thickness and the overall heat transfer coefficient on the thermal efficiency coefficient has been investigated, but the ratio of width/length, number of pipes and the distance between two pipes have been not discussed. In addition, at the moment, classically manufactured collectors by the firms which are available in the market have been investigated for the months May, June, July, August and September where the thermal efficiency coefficient curves have been compared under each other and the best thermal efficiency coefficient curve has been determined. In the 1st part of the present work mathematical modelling has been done which bases on the fin theory. By means of the fin theory correlation the outlet temperature of the water and the thermal efficiency coefficient have been calculated. In the second part of the work experiments, in the 3rd part the investigations in details and in the 4th part the results have been discussed. At the end this investigation it has been seen that the thermal efficiency coefficient of a liquid flat-plate solar collector is function of following parameters: - Material of absorbing plate and pipes, - Number of pipes, - The distance between two pipes, - The ratio of width/length, - Outside temperature, - The solar radiation intensity. The optimum liquid flat-plate collector has been obtained for the following data: - Width/Lenght = 1.4/1.4 = 1.0, - Number of pipes =13, - The distance between two pipes = 0.1038 m, - Material of the collector = Copper. The months in which the best thermal efficiency coefficient curve has been obtained are June and July.
Benzer Tezler
- Aerial package delivery via smart parachute-payload system
Akıllı paraşüt-yük sistemiyle havadan paket teslimi
SİNAN ALNIPAK
Yüksek Lisans
İngilizce
2024
Bilgisayar Mühendisliği Bilimleri-Bilgisayar ve Kontrolİstanbul Teknik ÜniversitesiMakine Mühendisliği Ana Bilim Dalı
PROF. DR. ERDİNÇ ALTUĞ
- İnternet üzerinden bilgisayar destekli bakım yönetim sistemi ve havacılık uygulaması
Computer aided maintenance management systems on internet and aviation practice
ALPER DALKIRAN
Yüksek Lisans
Türkçe
2004
Sivil HavacılıkAnadolu ÜniversitesiSivil Havacılık Ana Bilim Dalı
PROF.DR. HİKMET KARAKOÇ
- Bilgisayar destekli din öğretimi
Computer aided instruction in religious education
AŞKIN ASAN
Doktora
Türkçe
1998
DinOndokuz Mayıs ÜniversitesiFelsefe ve Din Bilimleri Ana Bilim Dalı
PROF. DR. HÜSEYİN PEKER
- Cessna 172S skyhawk performans karar destek sisteminin geliştirilmesi
Decision support system development for performance determination of cessna 172S skyhawk
BAHADIR CİNOĞLU
Yüksek Lisans
Türkçe
2019
Bilgisayar Mühendisliği Bilimleri-Bilgisayar ve KontrolEskişehir Teknik ÜniversitesiPilotaj Ana Bilim Dalı
DR. ÖĞR. ÜYESİ UĞUR ÖZDEMİR
- Application of the 3G PCS technologies to the mobile subsystem of the next generation tactical communications systems
Üçüncü nesil PCS teknolojilerinin gelecek nesil taktik muharebe sistemlerinin gezgin altsistemine uyarlanması
ERDAL ÇAYIRCI
Doktora
İngilizce
2000
Bilgisayar Mühendisliği Bilimleri-Bilgisayar ve KontrolBoğaziçi ÜniversitesiBilgisayar Mühendisliği Ana Bilim Dalı
DOÇ. DR. CEM ERSOY