ISBN: ISBN 984-32-1803- 6
PROCEEDINGS
Short Course on Energy Efficiency
25-30 October 2008
Centre for Energy Studies
Bangladesh University of Engineering and Technology Dhaka 1000
and
German Technical Cooperation (GTZ)
Editors: Shahidul I. Khan and M. Obaidullah
Published by
Centre for Energy Studies
Bangladesh University of Engineering and Technology, Dhaka 1000, Bangladesh
E-mail: dirces@buet.ac.bd
Website: http://www.buet.ac.bd/ces/
ISBN: ISBN 984-32-1803- 6
The articles published in this book reflect the opinions of the authors and not necessarily reflect the views of the Centre for Energy Studies, Bangladesh University of Engineering and Technology.
PREFACE
We are pleased to publish the Proceedings of the short course on ‘Energy Efficiency’ organized by the Centre for Energy Studies (CES) of Bangladesh University of Engineering and Technology (BUET) and German Technical Cooperation (GTZ). Energy has been the primary input behind the evolution of the human civilization up to the new millennium marked with astounding technological developments. However, while the demand for energy is ever escalating the commercially viable and exploitable resources for bulk energy are getting shrunk in the world. Therefore, alongside ensuring access to energy for all, affordable and pragmatic technical means need to be devised and implemented so that energy can be saved through reducing the consumption. This proceedings focuses through a number of articles contributed by the noted experts in respective fields that energy saving and auditing i.e. conservation is an interdisciplinary topic that requires integration of architectural, mechanical and electrical engineering solutions on one side and the financial analysis on the other side. The articles illustrate how energy saving can be affected through the architecture, lighting, motors and transformers, ventilation and air conditioning, heating systems and cogeneration in residential or industrial and commercial buildings/plants. We take this opportunity to acknowledge our profound gratitude to Prof. Dr. A. M. M. Safiullah, the Hon’ble Vice-Chancellor of BUET, all the resource persons, Mr. Erich Otto Gomm, of GTZ and Mr. Mohammad Zahirul Islam, Librarian of BUET for their contributions towards the publication of this proceedings. The last but not the least, our special appreciation goes to Mr. Md. Abdur Rab of CES for his untiring efforts for publishing this Proceedings.
Shahidul Islam. Khan, M. Obaidullah
CONTENTS
Energy Efficient Lighting 1 
Shahidul I. Khan, BUET
Fundamentals of Electric Motors and Transformers 15
Rajib Mikail, BUET
Energy Saving Through Improved Boiler and Pipeline Schemes 28
Md. Ehsan, BUET
Energy Saving Through HVAC System Improvement 45
Md. Zahurul Haq, BUET
Cogeneration and Energy Savings 61
M. A. Rashid Sarkar, BUET
Financial Analysis of Energy Savings 97
Ijaz Hossain, BUET
Experiences in Installation and Operation of Energy Efficient Rice Parboiling Systems 108
M. A. Baqui, M. Ahiduzzaman and M. M. Rahman, BRRI
Fundamental of Solar Water Heaters 125
Shahidul I. Khan and M. Obaidullah, BUET
Energy Auditing and Energy Management 133
Md. Mustafizur Rahman, Energy Audit Cell
Energy Saving with Electronic Ballasts in Readymade Garments (RMG) Factories 139
Asma Huque, Prokaushali Sangsad Ltd.
Energy Audit Case Studies in Different Enterprises 143
Md. Mustafizur Rahman, Energy Audit Cell
Energy Efficient Machines 156
Fayyaz Khan, UIU
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