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TERMOELEKTRİK MODÜLÜN JENERATÖR OLARAK MODELLENMESİ VE DENEYSEL ÇALIŞMASI

MODELLING AND EXPERIMENTAL STUDY OF TERMOELECTRIC MODULE AS GENERATOR

Journal Name:

  • Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

Publication Year:

  • 2011

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
In this study, mathematical model simulation was done for using Thermoelectric Module (TEM) as Thermoelectric Generator (TEG) by Matlab/Simulink simulation program; and mathematical model and simulation results for different temperature ranges were confirmed by experiments. Current, voltage, power, hot side and cold side heats and temperature difference between the surfaces of module values for continuous monitoring and registration of a special SCADA program was developed. When Matlab/Simulink simulation results obtained from the theoretical were compared with the experimental results measured by the SCADA, the results were as follows; system average error percentages; for current, voltage and power: 5.57%, 5.12%, 3.72% respectively. TEG output voltage Vmax = 2.2V, output power Pmax = 6.71W and efficiency 3.4% were obtained, when amount of waste heat sink into TEG was QH =197W and the matched load resistance was matched to the internal resistance at the 100°C temperature difference. The results of experimental and theoretical analysis show that TEG has a promising potential at the recovery of waste heat for low temperatures in especially industrial and geothermal areas.
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Abstract (Original Language): 
Bu çalışmada, Matlab/Simulink benzetim programıyla Termoelektrik Modülün (TEM) Termoelektrik Jeneratör (TEJ) olarak kullanılması için, matematiksel modelinin benzetimi yapılmış ve farklı iki sıcaklık aralıkları için benzetim sonuçları deneylerle teyit edilmiştir. Modüle ait akım, gerilim, güç, sıcak yüzey ve soğuk yüzey sıcaklıkları ve bu yüzeyler arasındaki sıcaklık farkı değerlerinin sürekli izlenmesi ve kayıt altına alınması için özel bir SCADA programı geliştirilmiştir. Matlab/Simulink benzetimiyle elde edilen teorik sonuçlarla SCADA sistemiyle ölçülen deneysel sonuçlar karşılaştırılmış, ortalama hata yüzdeleri; sırasıyla akım, gerilim ve güç için %5,57, %5,12 ve %3,72 olmuştur. 100°C sıcaklık farkında, TEJ’e giren atık ısı miktarı QH =197W iken, TEJ ve yük dirençleri birbirine eşitlendiğinde; çıkış gerilimi Vmax = 2,2V, çıkış gücü Pmax = 6,71W ve verim %3,4 elde edilmiştir. Deney ve teorik analizin sonuçları, özellikle endüstriyel ve jeotermal alanlarda, düşük sıcaklıklar için atık ısı geri kazanımında, TEJ’in umut verici potansiyele sahip olduğunu göstermiştir.
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