engleski

A Monovalent Heat Pump Installation for Hotels of High Category

In the paper, by means of numerical modeling, the small power energy station for the application at hotels of high category has been analysed. Hotel of higher category requires an air-conditioning system and a suitable source for heating and cooling purposes. A monovalent heat pump installation could be an adequate solution. The heat pump installation consists of a water-water heat pump, water-air heat exchanger, two hot water storage tanks and electric heater of water at peak consumption periods. The basic parameters for the optimisation of such a system with a heat pump are the hotel building construction elements, meteorological data of external parameters from a Test Referent Year, the chosen hotel location, as well as hot water consumption during the day. In the paper the special accent is given to the condenser heat utilisation during the summer cooling period. In the same period, at night, during the lowest electric energy tariff, the heat pump is used for heat production. The heat is stored in two strage tanks and utilised for heating the hot water which is consumed during morning hours. At wintertime heat pump is used for space heating and hot water heating. Heat pump price compared to water chiller slightly increases the cost of investment. The analysis has shown that appliance of this system reaches reasonable energy savings and reduces the engaged electrical power in relation to the conventional solutions.

monovalent heat pump installation; thermal energy system; optimisation

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