Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Bingguo Zhu"'
Publikováno v:
Frontiers in Energy Research, Vol 11 (2023)
In this paper, a mathematical and physical model is established to study the convective heat transfer performance of supercritical carbon dioxide (SCO2) in three kinds of horizontal semicircular channels (uniform cross-sectional channel, diverging an
Externí odkaz:
https://doaj.org/article/e664f844e65c4dd185512e977f1a7f8b
Publikováno v:
Energies, Vol 16, Iss 5, p 2289 (2023)
Waste heat air-source heat pump water heater (WH-ASHPWH) systems have been widely used to provide water heating in buildings due to their advantages of high efficiency and low environmental impact. It is important to determine reasonable operating co
Externí odkaz:
https://doaj.org/article/beffa71d39734e6b8308fa578d07030e
Publikováno v:
Entropy, Vol 25, Iss 2, p 339 (2023)
Tangential leakage loss is the primary factor that significantly affects the output performance of oil-free scroll expanders. A scroll expander can function under different operating conditions, and the flow of tangential leakage and generation mecha
Externí odkaz:
https://doaj.org/article/8c1d99cef91b4e8083aff44255156e88
Publikováno v:
Metals, Vol 12, Iss 9, p 1407 (2022)
The flow stress and dynamic recrystallization behavior of A356 aluminum alloy was studied, with a strain rate ranging from 0.001 s−1 to 1 s−1 and temperature ranging from 300 to 500 °C. Both the true stress–strain curves and microstructure exa
Externí odkaz:
https://doaj.org/article/0066ede6eee144c5901508444abfa850
Publikováno v:
Entropy, Vol 24, Iss 1, p 79 (2022)
In this work, the heat transfer characteristics of supercritical pressure CO2 in vertical heating tube with 10 mm inner diameter under high mass flux were investigated by using an SST k-ω turbulent model. The influences of inlet temperature, heat fl
Externí odkaz:
https://doaj.org/article/55eab20b967643f0a13094cc028e86c0
Publikováno v:
Energies, Vol 14, Iss 21, p 7329 (2021)
In order to study the matching characteristics of the positive displacement air compressor and the PEMFC (proton exchange membrane fuel cells), air supply subsystem, the basic operating performance parameters of the scroll and single-screw air compre
Externí odkaz:
https://doaj.org/article/4a3e42eda7b144069457d3aef6a2c711
Publikováno v:
Materials, Vol 13, Iss 3, p 723 (2020)
It is great significance to understand the mechanism of heat transfer deterioration of supercritical CO2 for heat exchanger design and safe operation in the supercritical CO2 Brayton cycle. Three-dimensional steady-state numerical simulation was perf
Externí odkaz:
https://doaj.org/article/5c20c92a2e024806aca7507abb3c2639
Publikováno v:
Insight: Non-Destructive Testing & Condition Monitoring. May2022, Vol. 64 Issue 5, p262-269. 8p.
Publikováno v:
Journal of Energy Storage. 63:106896
Publikováno v:
Journal of Thermal Science. 30:1751-1767
Accurate prediction of supercritical CO2 (scCO2) heat transfer is important for heat exchanger design and safe operation of scCO2 power cycles. The main prediction method is empirical correlation. This paper demonstrates an alternative way by artific