czas-i-pomiary: Heat pipe

Evidence: 34 • authority: 80

Thermal Conductivity of Heat Pipe Container and Wick Materials

Evidence: 34 • authority: 92

Optimization of fin design and nanoparticle doping for accelerated PCM melting.. Latent heat thermal energy storage (LHTES) represents a promising renewable energy technology that can help alleviate the global energy shortage. This work numerically investigates the thermal charging process in a n-octadecane PCM-based double-pipe LHTES using a 2D COMSOL Multiphysics model. The study evaluates and analyzes the performance enhancement of the LHTES with various metallic fins, different distributions, inner tube placement, and Cu nano-additive concentrations. The study examines five fin arrangements, C 1 to C 5, three positions of the inner tube, P 1 to P 3, and three concentrations of Cu nanopa…

Evidence: 31 • authority: 92

Thermo-hydraulic performance analysis of a horizontal slinky-type geothermal heat exchanger under turbulent flow vonditions.. Horizontal Slinky-type geothermal heat exchangers (GHEs) are widely used in ground-source heat pump systems due to their compact layout and low installation cost, yet their performance is often constrained by shallow burial depth and weak internal flow mixing. This study presents a three-dimensional CFD analysis of a horizontal Slinky GHE enhanced with Twisted-tape inserts. The effects of Twisted-tape pitch (100, 250, and 350 mm), burial depth (0.5-1.5 m), and water mass flow rate (0.30-1.0 kg/s) are investigated under turbulent flow conditions using ANSYS Fluent wit…

Evidence: 30 • authority: 80

Effective Thermal Conductivity of Saturated Sintered Nickel Loop Heat Pipe Wicks

Evidence: 30 • authority: 80

Effective thermal conductivity of a nitrogen heat pipe

Evidence: 30 • authority: 80

Effective thermal conductivity of sintered heat pipe wicks

Evidence: 30 • authority: 92

Combined experimental and numerical evaluation of heat loss from natural fiber composites used as thermal insulation.. In recent times, most of the industries have adopted Polyurethane Foam (PUF) as a thermal insulation for steam pipes. Although it is good in terms of thermal insulation, it is non-disposable and non-biodegradable, which makes it harmful to the environment. In case of a fire accident, it may release hydrogen cyanide, which is toxic and detrimental to human beings. Considering these factors in the current work, PUF has been replaced with natural fiber-reinforced composites. An Experimental comparison of heat loss from the steam pipe using two natural fiber composite materials…

Evidence: 22 • authority: 80

Thermal conductivity of heat pipe container and wick materials

Evidence: 22 • authority: 80

Thermal Conductivity of Heat Pipe Container and Wick Materials

Evidence: 22 • authority: 92

Corrosion Screening of Greenhouse Structural Steel Pipes Using Cold Infrared Thermography.. Greenhouse structural steel pipes are susceptible to internal and external corrosion under hot and humid service conditions, leading to cross-sectional loss and reduced structural strength. This study proposes a cold infrared thermography method for screening corroded pipes and identifies effective indicators for different cooling-affected regions. Experiments were performed using three non-corroded and five salt-spray-corroded SPVHS-grade specimens and three field-corroded specimens. After a cooling stimulus was applied using an ice pack, time-series mean surface-temperature data were acquired using…

Evidence: 22 • authority: 80

Biomimetic Copper Forest Wick Enables High Thermal Conductivity Ultrathin Heat Pipe

Evidence: — • authority: 65