Modeling and Calculation of Air Flow in Solar Chimney Power Plant
Abstract
Solar updraft power technology is attracting interest in many
regions worldwide, being a compelling prospect for producing
clean and renewable energy. Very import operational parameters of
solar chimney power plant (SCPP) are mass flow rate and pressure
difference inside the chimney. Based on the assumption of
one-dimensional flow, a comprehensive mathematical model for
buoyancy driven air flow inside the SCPP is developed. It consists
of system of nonlinear differential equations which describes the
flow inside collector and the chimney, and algebraic equations which
describes the flow in collector to chimney transition section and
turbines. Validity of the model is confirmed by numerical solution
of the equations for the case of Manzaneres SCPP, where good
agreement is found between obtained solution and available
experimental data. Additionally, nonlinear differential equations
that describes the flow in the chimney are further analyzed
... analytically. A perturbational approach based on Rayleigh-Janzen
perturbation scheme is developed, in which effects of gravity and
variability of cross section are considered in first approximation,
while inertia and friction are treated in second approximation. For
both approximation, the exact analytical solution is found. That
fact enables very good insight into the role of each important
parameter that governs the flow inside the chimney, which is also
elaborated. This theory also enables evaluation of chimney shape
that affects the flow in a way which can be prescribed in advance.
Keywords:
solar chimney power plant / one-dimensional compressible flow / Rayleigh-Janzen expansionSource:
Conference on Modelling Fluid Flow (CMFF’18), 2018Funding / projects:
- Application of Novel Measurement and Computational Techniques on Investigation of Air Flow in Ventilation Systems of Energy Extremely Efficient (“Passive”) Buildings (RS-MESTD-Technological Development (TD or TR)-35046)
- Serbian Academy of Science and Arts through project F 196
Collections
Institution/Community
Mašinski fakultetTY - CONF AU - Ćoćić, Aleksandar AU - Đorđević, Vladan PY - 2018 UR - https://machinery.mas.bg.ac.rs/handle/123456789/5523 AB - Solar updraft power technology is attracting interest in many regions worldwide, being a compelling prospect for producing clean and renewable energy. Very import operational parameters of solar chimney power plant (SCPP) are mass flow rate and pressure difference inside the chimney. Based on the assumption of one-dimensional flow, a comprehensive mathematical model for buoyancy driven air flow inside the SCPP is developed. It consists of system of nonlinear differential equations which describes the flow inside collector and the chimney, and algebraic equations which describes the flow in collector to chimney transition section and turbines. Validity of the model is confirmed by numerical solution of the equations for the case of Manzaneres SCPP, where good agreement is found between obtained solution and available experimental data. Additionally, nonlinear differential equations that describes the flow in the chimney are further analyzed analytically. A perturbational approach based on Rayleigh-Janzen perturbation scheme is developed, in which effects of gravity and variability of cross section are considered in first approximation, while inertia and friction are treated in second approximation. For both approximation, the exact analytical solution is found. That fact enables very good insight into the role of each important parameter that governs the flow inside the chimney, which is also elaborated. This theory also enables evaluation of chimney shape that affects the flow in a way which can be prescribed in advance. C3 - Conference on Modelling Fluid Flow (CMFF’18) T1 - Modeling and Calculation of Air Flow in Solar Chimney Power Plant UR - https://hdl.handle.net/21.15107/rcub_machinery_5523 ER -
@conference{ author = "Ćoćić, Aleksandar and Đorđević, Vladan", year = "2018", abstract = "Solar updraft power technology is attracting interest in many regions worldwide, being a compelling prospect for producing clean and renewable energy. Very import operational parameters of solar chimney power plant (SCPP) are mass flow rate and pressure difference inside the chimney. Based on the assumption of one-dimensional flow, a comprehensive mathematical model for buoyancy driven air flow inside the SCPP is developed. It consists of system of nonlinear differential equations which describes the flow inside collector and the chimney, and algebraic equations which describes the flow in collector to chimney transition section and turbines. Validity of the model is confirmed by numerical solution of the equations for the case of Manzaneres SCPP, where good agreement is found between obtained solution and available experimental data. Additionally, nonlinear differential equations that describes the flow in the chimney are further analyzed analytically. A perturbational approach based on Rayleigh-Janzen perturbation scheme is developed, in which effects of gravity and variability of cross section are considered in first approximation, while inertia and friction are treated in second approximation. For both approximation, the exact analytical solution is found. That fact enables very good insight into the role of each important parameter that governs the flow inside the chimney, which is also elaborated. This theory also enables evaluation of chimney shape that affects the flow in a way which can be prescribed in advance.", journal = "Conference on Modelling Fluid Flow (CMFF’18)", title = "Modeling and Calculation of Air Flow in Solar Chimney Power Plant", url = "https://hdl.handle.net/21.15107/rcub_machinery_5523" }
Ćoćić, A.,& Đorđević, V.. (2018). Modeling and Calculation of Air Flow in Solar Chimney Power Plant. in Conference on Modelling Fluid Flow (CMFF’18). https://hdl.handle.net/21.15107/rcub_machinery_5523
Ćoćić A, Đorđević V. Modeling and Calculation of Air Flow in Solar Chimney Power Plant. in Conference on Modelling Fluid Flow (CMFF’18). 2018;. https://hdl.handle.net/21.15107/rcub_machinery_5523 .
Ćoćić, Aleksandar, Đorđević, Vladan, "Modeling and Calculation of Air Flow in Solar Chimney Power Plant" in Conference on Modelling Fluid Flow (CMFF’18) (2018), https://hdl.handle.net/21.15107/rcub_machinery_5523 .