20.500.12556/RUL-126299 Exergoeconomic optimization of a district cooling network A district cooling system (DCS) is superior to conventional air conditioning as it helps to reduce energy consumption and protect the environment by reducing carbon dioxide emissions. The main disadvantages of a DCS are the high initial investment costs and the long payback period. The distribution network (DN) represents a large share of initial investment costs; therefore, it has a great impact on the decision to construct a DCS. In order to ensure the competitiveness of DCS, the DN has to be optimized. In this paper the exergoeconomic concept is applied to evaluate a DN in a DCS. The objective function in the analysis is defined as the exergy based cost of the final product-cold. The exergy-based cost of cold depends on the total annual cost of a DN, the input exergy to the DN, the exergy losses and the exergy destruction. The aim of this study is to find the exergetic optimal pipe diameter and the insulation thickness, as well as the exergoeconomic optimal pipe diameter and the insulation thickness. The analysis was made for different cooling capacities and for two types of pipes: pre-insulated steel pipes, where the insulation material is polyurethane, and polyethylene pipes, without any insulation. exergoeconomic analysis district cooling network optimal diameter exergo-economic optimal insulation thickness eksergoekonomska analiza omrežje sistema daljinskega hlajenja optimalni premer eksergoekonomska optimalna debelina izolacije true false true Angleški jezik Slovenski jezik Članek v reviji 2021-04-15 21:10:24 2021-04-15 21:10:28 2022-09-05 03:54:39 0000-00-00 00:00:00 2017 0 0 Str. 342-351 Vol. 135 Sep. 2017 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 2016-10-17 2017-06-20 2017-06-22 2019-06-22 697:620.9(045) 0360-5442 10.1016/j.energy.2017.06.126 15891995 25394688 https://www.sciencedirect.com/science/article/pii/S0360544217311246 1 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=142203 RAZ_Duh_Coz_Tjasa_2017.pdf RAZ_Duh_Coz_Tjasa_2017.pdf 1 B6F817EE0112E7517741A55AA56CE445 ee758b2218c75163c5b8d71e21ccf34e10b44ec5502e0b3e410b37e6c9d40a01 1691bb12-a215-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=142340 Fakulteta za strojništvo 0 0 0