Treball desenvolupat dins el marc del programa 'European Project Semester'.

For the last fifteen weeks our team, consisting of four members, has been carrying out the project entitled “Heating and ventilating system for IFE building, with the use of renewable energy sources” for the European Project Semester (EPS). This project is devoted to establish the review analysis of energy consumption of the building in order to determine the most promising solution of the problem which affects this building: using the central heating system, fed by the urban supply. This consumption is not rentable in terms of economy and is not using a renewable energy source. According to the Directive 2010/31/EU of the European Parliament and of the Council of 19 May 2010 on the energy performance of buildings (recast), the energy consumption of newly developed buildings (starting from 2020) has to reach 20% in use of the renewable energy sources and restricting the CO2 emissions by 20%. To deal with this problem it was necessary to analyze all the types of heat sources available in Łódź, which could be used within the buildings premises. The project output is to create a heating system for the building, using the so-called heat pump device, situated inside the basement of IFE building. The first design assumption was the use of a system of heat exchangers restoring the required amount of energy form a ground, covering the buildings' energy needs. Solar radiation, air, ground and water source are the analyzed energy sources applicable for a heat pump or a binary system (heat pump with its source + other applicable), which, in fact, the mother source is solar radiation, stored or taken directly. The next step was to compute the power demand of the building monthly, to decide on the size of a chosen heat pump, using the optimization of the size in the cost function, or more specifically, the cost (power) minimization. To do this we had to contact the providers to get information about the most appropriate heat pumps and other relevant costs in order to make the good investment, taking in a count the repayment and the right efficiency of the system. We made also the overall SWOT analysis to make sure the final outcome is the most appropriate. In the end, we decided which source and heat pump would the best solution for our problem, and introduced the design process with its outcome (installation design of the heat pump with the lower heat source and its' placement in the IFE building premises).