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A model based on microcanonical Monte Carlo method is used to study the application of the temperature gradient along a two-dimensional (2D) Ising system. We estimate the system size effects on thermal conductivity, K, for a nano-scale Ising layer with variable size. It is shown that K scales...
Persistent link: https://www.econbiz.de/10011058459
Among other applications, the study of thermal properties of large networks of carbon nanoparticles may have a critical impact in loss-free, more compact and efficient thermal storage systems, as well as thermally conducting polymeric materials for innovative low-cost heat exchangers. In this...
Persistent link: https://www.econbiz.de/10011077346
Thermal response tests conducted to assess the subsurface thermal conductivity for the design of ground-coupled heat pump systems require a power source of about 7–12kW to heat water circulating in a ground heat exchanger. This high power is commonly supplied with a fuel-fired generator, which...
Persistent link: https://www.econbiz.de/10011263240
A kind of heat conduction-enhanced shape-stabilized PCM (HCE-SSPCM) was utilized in the under-floor heating system for house heating in winter. This system charges heat by using cheap nighttime electricity and provides heating needs throughout all day. The effect of thermal conductivity of the...
Persistent link: https://www.econbiz.de/10011263266
The cement material adopted for a new geothermal well project in South Korea is specialized as the G-class cement, which is commonly used in the oil-well industry, and regulated by the API (American Petroleum Institute). In order to maintain the optimal generating performance of geothermal...
Persistent link: https://www.econbiz.de/10011263737
Concentrated Solar Power (CSP) is considered as a viable large-scale renewable energy source to produce electricity. However, current costs to produce electricity from CSP are not cost competitive as compared to the traditional energy generation technologies based on fossil fuels and nuclear. It...
Persistent link: https://www.econbiz.de/10011263790
Thermal Energy Storage (TES) is an important challenge for the development and implementation of Concentrated Solar Power (CSP) plants. The heat can be stored in a sensible, thermochemical or latent form. Recently, the latent heat thermal energy storage (LHTES) kind has gained the most of...
Persistent link: https://www.econbiz.de/10012652109
In recent years, there has been an increase in motorization; therefore, the demand for high-efficiency motors in automobiles and aircrafts will further increase. A drone is an aircraft that flies without a human pilot onboard; it has a short flight time because the size of the mounted battery is...
Persistent link: https://www.econbiz.de/10012652276
The commercial purity dibromobenzene (DBB) and succinonitrile (SCN) were purified using a columnar distillation system. Thin walled rectangular specimen cells (60–80 μm thick) were fabricated and filled with the purified materials under the vacuum. The specimen cell was placed in a horizontal...
Persistent link: https://www.econbiz.de/10004996406
By using entropy and entropy production, we calculate the steady flux of some phenomena. The method we use is a competition method, SS/τ+σ=maximum, where SS is system entropy, σ is entropy production and τ is microscopic interaction time. System entropy is calculated from the equilibrium...
Persistent link: https://www.econbiz.de/10011060805