الفهرس 
Literature ReviewOnly 14 pages are availabe for public view
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Abstract
Efficient energy use is the goal to reduce the amount of energy required to operate air-conditioning plant and other services and consequently less heating and cooling energy to achieve and maintain a comfortable temperature. Improvements in energy efficiency are generally achieved by adopting a more efficient technology or by application of accepted methods to reduce energy losses.
Saving energy reduces energy costs and may result in a financial cost saving over consumers as energy savings eliminate any additional cost of implementing an energy efficient technology. On the other hand, reducing energy is also seen as a solution to the problem of reducing greenhouse gas emissions.
Therefore, the present study attempts to apply a convenient method to reduce the amount of energy through development of a control strategy for electrical energy usage to run air-conditioning unit so that it can reduce the cost of electrical power consumption.
The thesis includes historical efforts made by scientists in AHU control systems in this field through previous years.
In addition, the thesis formulates its equations based on the basics of heat transfer to represent various modes of heat transfer that has an effect on the temperature distribution in buildings for controlling and enhancement room temperature.
The control system is described by some differential equations which represent the walls temperature using a method called “Lumped Capacitance”. At that point the equations of the system in “state space” are represented and the state variables are defined.
The system has been approximated to another simplified model with reduced order and simultaneously preserve the same transfer function.
The optimal control technique governs the time-varying manner of thermal loads operating at more economically and more efficiently and simultaneously fulfils the desired comfort level.
Switching curve for Double Integral Time-Optimal System helps to drive system from any starting initial state at (x1(0) , x2(0)) to final state at origin (0 , 0) in a minimum time.
Pontryagin’s Minimum Principle controller is used to design dynamic optimal control algorithm which is capable of getting. various required states in minimum time.
It is devoted in the current study to represent the results and discussions of various cases, where results showed the studied parameters as well as the most important results obtained in this work, concludes remarks and observations relative to this dissertation work, including the identification of the future work areas. Finally, it has been citing the references used in this thesis.