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1 2010

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Heating ventilation and air conditioning system; enhancement of energy consumption via control optimisation

Zajic I., Burnham K. J., Larkowski T., Hill D.

Systems Science

2010

Vol. 36, no 3

39-47

Nowadays, because of higher energy costs and the awareness of the environmental issues a general trend can be observed to increase the energy efficiency of heating ventilation and air conditioning (HVAC) systems. The paper demonstrates that this aim can be achieved by highly stable control allowing for operation close to the specification limits, where the highest profitability can be obtained. In this regard, black-box models of both the controlled zone air temperature and humidity are constructed for a subsequent analysis of the present control system via a computer simulation. The results obtained are utilised for tuning of controllers on a real plant leading, subsequently, to substantial energy savings. The paper also investigates a potential scope for further energy savings.