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ENERGY MANAGEMENT SOLUTIONS TO INCREASE PERFORMANCE OF A SUPPLIER AND CONSUMER SYSTEM: CASE STUDY FOR AN UNIVERSITY CHP
Abstract
One of the main factors that influence the efficient use of cogeneration systems is the heat demand variation. The second influencing factor is generated by the restrictions imposed by the related legislation. Besides this two, the poor stage of the consumer?s insulation and of the heat distribution network, or the lack of the main know-how energy management concepts seriously affects the good functioning of a producer-consumer energy mix. The university together with the university Combined Heat and Power Plant (CHP) represent a supplier and consumer system. In this paper, are presented a few major energy management decisions that has been taken and applied to the university CHP and campus. This package of energy management solutions has been taken to increase the performances of university CHP and to bring them in accordance with the state of the art. At the present, in order to optimize the operating regimes of the cogeneration plant, authors have studied the correlation between functioning load of the plant and the possible solutions that could be applied to increase the plant performances. Those solutions have to be strongly correlated with the consumers? heat demand. In this regard one proposed measure is to sell the heat into the district heating network of the city. Another proposed solution for which there has been performed a technical-economic analysis, is the implementation of a new equipment that can generate centralized cold in order to supply a part of the University Campus buildings. The new cooling system will use as primer energy source the heat recovered from the CHP plant. In this special case study, two main important problems occurs, both being related to the type of the consumer: public institution where the demand for cooling suffers huge variations and where occupants have little incentive to follow the rules of good energy management.
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