TY - JOUR AB - Dairy farming is one of the most energy- and emission-intensive industrial sectors, and offers noteworthy opportunities for displacing conventional fossil-fuel consumption both in terms of cost saving and decarbonisation. In this paper, a solar-combined heat and power (S–CHP) system is proposed for dairy-farm applications based on spectral-splitting parabolic-trough hybrid photovoltaic-thermal (PVT) collectors, which is capable of providing simultaneous electricity, steam and hot water for processing milk products. A transient numerical model is developed and validated against experimental data to predict the dynamic thermal and electrical characteristics and to assess the thermoeconomic performance of the S–CHP system. A dairy farm in Bari (Italy), with annual thermal and electrical demands of 6000 MWh and 3500 MWh respectively, is considered as a case study for assessing the energetic and economic potential of the proposed S–CHP system. Hourly simulations are performed over a year using real-time local weather and measured demand-data inputs. The results show that the optical characteristic of the spectrum splitter has a significant influence on the system’s thermoeconomic performance. This is therefore optimised to reflect the solar region between 550 nm and 1000 nm to PV cells for electricity generation and (low-temperature) hot-water production, while directing the rest to solar receivers for (higher-temperature) steam generation. Based on a 10000-m2 installed area, it is found that 52% of the demand for steam generation and 40% of the hot water demand can be satisfied by the PVT S–CHP system, along with a net electrical output amounting to 14% of the farm’s demand. Economic analyses show that the proposed system is economically viable if the investment cost of the spectrum splitter is lower than 75% of the cost of the parabolic trough concentrator (i.e., <1950 €/m2 spectrum splitter) in this application. The influenc AU - Wang,K AU - Pantaleo,AM AU - Herrando,M AU - Faccia,M AU - Pesmazoglou,I AU - Franchetti,BM AU - Markides,CN DO - 10.1016/j.renene.2020.05.120 EP - 1065 PY - 2020/// SN - 0960-1481 SP - 1047 TI - Spectral-splitting hybrid PV-thermal (PVT) systems for combined heat and power provision to dairy farms T2 - Renewable Energy UR - http://dx.doi.org/10.1016/j.renene.2020.05.120 UR - https://www.sciencedirect.com/science/article/pii/S0960148120308247?via%3Dihub UR - http://hdl.handle.net/10044/1/80538 VL - 159 ER -