Bachelor's thesis Sebastian Trunk


Economic evaluation of plant engineering for heating, cooling and ventilation systems at Forschungszentrum Jülich

Economic evaluation of plant engineering Copyright: EBC Economic evaluation of plant engineering at Forschungszentrum Jülich

In context of energy revolution, the energetic optimization is more and more focused on the building sector. Laws like EnEV and EEWärmeG force the exchange of outdated technical systems and the role model of the state sector in relation to energy efficiency and expansion of renewable energies. So, it makes sense to focus on Forschungszentrum Jülich, too.

The focus of this Thesis is the economic evaluation of the exchange of technical systems which are installed at Forschungszentrum Jülich. For that, cost functions are developed and compared. Those cost functions are based on different sources. To find the technical systems for exchanging, a method is developed, which connects building characteristics and technical system characteristics. Furthermore, energetic potential savings are carved out for air conditioning plants and refrigerating plants. If a system is found by using the method, investment costs, capital value, annuity and dynamic amortization time are calculated. The most profitable system TK8 is described detailed in this Thesis. With those calculations the results of the method and the method itself get analyzed.

So, it comes clear, that the method is suitable to find out technical systems for an economical exchange. Although only 45 percent of the chosen systems are economically useful for an exchange, those systems possess an accumulated capital value of 0,51 Mio Euro and accumulated economizations per year of 51.777 Euro. Contrary to that the accumulated investment costs are only about 0,22 Mio. Euro. For Forschungszentrum Jülich two building are interesting, because in those two buildings five and four respectively systems are identified. Especially systems TK8, A19 and A8 are economically profitable, because those systems have a high capital value and amortize after two years.