Geri Dön

Power management systems for biomass-based energy harvesting

Başlık çevirisi mevcut değil.

PDF İndir

  1. Tez No: 523333
  2. Yazar: RIDVAN UMAZ
  3. Danışmanlar: Dr. LEI WANG
  4. Tez Türü: Doktora
  5. Konular: Enerji, Energy
  6. Anahtar Kelimeler: Belirtilmemiş.
  7. Yıl: 2018
  8. Dil: İngilizce
  9. Üniversite: The Unıversıty Of Connectıcut
  10. Enstitü: Yurtdışı Enstitü
  11. Ana Bilim Dalı: Belirtilmemiş.
  12. Bilim Dalı: Belirtilmemiş.
  13. Sayfa Sayısı: Belirtilmemiş.

Özet

Özet yok.

Özet (Çeviri)

Energy harvesting aims to convert ambient available energy from the surrounding environment into usable electrical energy. There have existed many energy sources can be found to harness environmental energy, but the focus of this thesis is to harvest energy from aquatic environment to power up underwater devices. Microbial fuel cells (MFCs) are important energyharvesting devices for underwater sensors and electronic devices. MFCs are a promising technology that converts bio-energy in the biomass substrate through electrochemical reactions into electricity. Due to the low voltage and power at MFC outputs, a power management system (e.g., power converter) is needed to boost the low voltage to a usable level by these devices. This thesis thus, presents power management circuits for biomass energy harvesting sources. New architectures and design techniques are discussed to achieve high system efficiency and effective design for MFCs. The first part of this thesis focuses on the development of the maximum power extraction from energy sources by deploying an inductorless power converter (i.e. capacitive power converter). The maximum power extraction is not targeted for a specific energy sources, but rather is designed for both low-power energy source and high-power energy source without increasing complexity of system and the need of power hungry peripheral circuits. Proposed power converter is divided into two stages; a number of first-stage in parallel and shared-stage. The first-stage maximizes power extraction from the energy source while the shared-stage operates as a conventional charge pump. The peak end-to-end efficiency is enhanced by 98\% as compared to the conventional converter. The proposed inductorles power converter has been implemented on a 0.13μm CMOS process. The second part of the thesis discusses energy combiner architecture for multiple microbial energy harvesting sources. Combining four identical MFCs (i.e. the same material, size and structure) through their power converter is achieved by deploying digital circuit to allow them to connect in-order to either a load or a battery. Proposed design let's all sources contribute to the output and minimize the overall efficiency. The proposed efficient energy combiner architecture is implemented on a 0.13μm CMOS process. The remainder of the thesis deals with power management circuits that have ability to recover bioturbation issue in MFCs. A unique issue in marine sediment MFCs is related to underwater bio-stress, referred to as bioturbation is discussed. Solution to bioturbation issue brings new requirements on the design of power management systems (PMSs). The third part of the thesis presents an off-the-shelf power management system for multi anode MFCs. The PMS has been tested through a prototype BFMC. Experimental results demonstrate the effectiveness of this design for multi anode MFCs. The last part of the thesis discusses an integrated circuit for multi anode MFC to detect automatically impaired anodes. The evaluation is made in using a 90nm CMOS technology. The proposed design provides 42% more efficiency than conventional design under the worst-case scenario.

Benzer Tezler

  1. Tez No

    66637

    Yüzen akuatik bitki sistemlerinde azot giderim prensipleri

    The principles of nitrogen removal in floating aquatic plant systems

    BERRAK EROL

    Yüksek Lisans

    Türkçe

    Türkçe

    1997

    Çevre Mühendisliğiİstanbul Teknik Üniversitesi

    Çevre Mühendisliği Ana Bilim Dalı

    DOÇ. DR. LÜTFİ AKÇA

  2. Tez No

    856536

    Simulation and life cycle assessment of combined bioheat and biopower plant using hungary oak (Quercus frainetto L.) coppices as a feedstock

    Macar meşesi (Quercus frainetto L.) baltalıklarını hammadde olarak kullanan birleşik biyoısı ve biyogüç santralinin simülasyonu ve yaşam döngüsü analizi

    FAHRİYE ENDA TOLON

    Doktora

    İngilizce

    İngilizce

    2024

    Enerjiİstanbul Teknik Üniversitesi

    Enerji Bilimi ve Teknolojileri Ana Bilim Dalı

    PROF. DR. FİLİZ KARAOSMANOĞLU

  3. Tez No

    104

    Sivas'ta kadınların işgücüne katılım farklılıkları

    Başlık çevirisi yok

    BİNNUR ERCEM

    Yüksek Lisans

    Türkçe

    Türkçe

    1984

    SosyolojiCumhuriyet Üniversitesi

    Kurumlar Sosyolojisi Ana Bilim Dalı

    YRD. DOÇ. DR. FARUK KOCACIK

  4. Tez No

    155

    Mikro bilgisayarla güç kompanzasyonu

    Başlık çevirisi yok

    NAFİZ ÜNLÜ

    Yüksek Lisans

    Türkçe

    Türkçe

    1985

    Bilgisayar Mühendisliği Bilimleri-Bilgisayar ve KontrolUludağ Üniversitesi

    Elektronik Ana Bilim Dalı

    PROF. DR. ERGÜR TÜTÜNCÜOĞLU

  5. Tez No

    410

    Katı yakıtların akışkan yatakta yakılması ve katı miktarının yatak yüksekliğine etkisi

    Combustion of solid fuels in the fkuidized beds and the effects of solid quantity to the height of bed

    KAMİL BEKİR KOÇ

    Yüksek Lisans

    Türkçe

    Türkçe

    1987

    Makine MühendisliğiGazi Üniversitesi

    Makine Eğitimi Ana Bilim Dalı

    YRD. DOÇ. DR. ALİ YÜCEL UYAREL

Geri Dön