| Author | Khan, A. K. M. Kamrul Hasan |
| Call Number | AIT Thesis no. ET-90-3 |
| Subject(s) | Buildings--Energy conservation
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | With the increasing trend of price and changed rate structure
of electricity, most widely used form of energy in buildings
necessitates an immediate steps to implement different load
management techniques for the reduction of energy cost. This study
is mainly concerned with the evaluation of potential for different
load management techniques in buildings. It provides an evaluation
of both economical and technical potential saving of self power
generation by HFO driven diesel engine, cogeneration with the
double effect absorption chiller and thermal storage in conjunction
with the cogeneration for different scenarios in AIT as a case
study. The evaluation was performed analyzing the typical
electrical and cooling load profiles of the institute on the basis
of performances, costs and other parameters elaborated in
manufacturer's catalogue and literatures. Sensitivity analysis was
also performed for different scenarios on the important parameters
such as fuel and electricity prices, interest rates and loan terms,
and installed cost.
Self-power generation shows a good margin of saving per kWh
of power generated but shows low IRR (less than 15%) because of the
high initial investment. On-site cogeneration provides a more
economically attractive technique and shows a potential of 13% peak
demand reduction and around 18% energy consumption saving with the
recovery of invested money in less than 4.5 years and provides very
attractive IRR, greater than 21% but saving potential is limited
by the low demand of cogenerated chilled water. Thermal storage
in conjunction with cogeneration offers a simple and economically
attractive approach for maximizing the utilization of cogenerated
chilled water and shows a reduction of peak demand and energy
consumption by 23% and 21% respectively,and also provides higher
internal rate of return (greater than 22%) .for all scenarios. From
the study it was evident that among the different scenarios, base
load shows the best economy which provides an IRR 23. 88% for
cogeneration and more than 25% with the addition of storage.
In the last part, ~he potential of saving by implementing duty
cycling to fan coil and air handling units, and efficient lighting
systems are studied . Both the techniques show a considerable
amount of saving with low costs. |
| Year | 1990 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Energy Technology (ET) |
| Chairperson(s) | Mohanty, B. |
| Examination Committee(s) | Mora, Jean-Claude ;Surapong Chirarattananon |
| Scholarship Donor(s) | Government of France |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1990 |