TY - JOUR
T1 - Economic analysis for the selection of low temperature solar thermal utility systems
AU - Caballero-Esparza, Mónica
AU - Lizárraga-Morazán, Juan Ramón
AU - Picón-Núñez, Martín
N1 - Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/10
Y1 - 2022/10
N2 - The supply of low temperature heat to a process plant can be accomplished using different types of solar thermal technology such as Flat Plate Collectors (FPC), Compound Parabolic Collectors (CPC) or Parabolic Trough Collectors (PTC). These technologies differ in the surface area required, the initial investment cost and the number of hours in the day they can provide the required heat duty to replace the use of fossil fuel. Out of these technologies, the PTC proves to be the most convenient in the lifetime horizon despite the large initial costs either for low or for medium temperature applications. This is demonstrated using the net present value of the life cycle energy savings. It is shown that for a process with a heat duty of 700 kW, supply temperature of 130 °C and assuming the lowest solar radiation, the PTC requires a surface area of 3191.76 m2 giving a life cycle energy saving of 1967089.32 USD and a payback of 3 years. For a case with 400 kW and supply temperature of 70 °C, the PTC remains the best option with a surface area of 1768.42 m2 and a life cycle energy saving of 1085939.35 USD and a payback of 4 years.
AB - The supply of low temperature heat to a process plant can be accomplished using different types of solar thermal technology such as Flat Plate Collectors (FPC), Compound Parabolic Collectors (CPC) or Parabolic Trough Collectors (PTC). These technologies differ in the surface area required, the initial investment cost and the number of hours in the day they can provide the required heat duty to replace the use of fossil fuel. Out of these technologies, the PTC proves to be the most convenient in the lifetime horizon despite the large initial costs either for low or for medium temperature applications. This is demonstrated using the net present value of the life cycle energy savings. It is shown that for a process with a heat duty of 700 kW, supply temperature of 130 °C and assuming the lowest solar radiation, the PTC requires a surface area of 3191.76 m2 giving a life cycle energy saving of 1967089.32 USD and a payback of 3 years. For a case with 400 kW and supply temperature of 70 °C, the PTC remains the best option with a surface area of 1768.42 m2 and a life cycle energy saving of 1085939.35 USD and a payback of 4 years.
KW - Life cycle energy savings
KW - Solar collector networks
KW - Solar collector technology
KW - Solar thermal integration
KW - Utility selection
UR - http://www.scopus.com/inward/record.url?scp=85133927923&partnerID=8YFLogxK
U2 - 10.1016/j.applthermaleng.2022.118913
DO - 10.1016/j.applthermaleng.2022.118913
M3 - Artículo
AN - SCOPUS:85133927923
SN - 1359-4311
VL - 215
JO - Applied Thermal Engineering
JF - Applied Thermal Engineering
M1 - 118913
ER -