An Efficient and Reliable District Heating and Cooling Supplier

In this study, by employing solar parabolic trough collectors, the supply of the thermal energy demand of an absorption chiller, as well as a portion of the local district heating demand, is proposed for a case study. The case study already uses the local district heating system to support the chiller which makes problems during the warm months of the year. The results show that the system totally resolves the technical problem of the case study, offers a great contribution to providing the district heating demand and leads to a more favorable economic index compared to the old design. It is observed that the heat demand of chiller is zero for one-third of the year. For a quarter of the year, the system feeds district heating over 1 MW heat and the IRR value of the system is 5.7% for 8 years of operation.