Showing 1 - 10 of 76
Eutectic molten salt can be used as the latent thermal energy storage (LTES) medium in solar energy applications. In the present study, eutectic salt (50wt% NaNO3, 50wt% KNO3) with a melting temperature of about 220°C was employed as the PCM for the middle-temperature solar energy application,...
Persistent link: https://www.econbiz.de/10011116077
To investigate into the synergistic effect of depressurization and heat stimulation on hydrate dissociation and the three-dimensional heat transfer characteristics during hydrate dissociation in the porous media, a series of the hydrate dissociation experimental runs by the depressurization in...
Persistent link: https://www.econbiz.de/10011190895
This paper is the first portion of a two-part study of the heat transfer characteristics of a shell-tube latent thermal energy storage (LTES) system. A three-dimensional computational fluid dynamics model based on enthalpy method was developed to investigate the charging characteristics of the...
Persistent link: https://www.econbiz.de/10011190898
The convective heat transfer and pressure drop characteristics of flow in corrugated channels have been experimentally investigated. Experiments were performed on channels of uniform wall temperature and of fixed corrugation ratio over a range of Reynolds number, 3220≤Re≤9420. The effects of...
Persistent link: https://www.econbiz.de/10011055243
Microencapsulated phase change materials (MPCM) have been recognized as effective materials to enhance heat transfer, and to improve heat storage performance in thermal energy system. Microencapsulated phase change material slurry (MPCS) can apply to heat transport and thermal energy storage...
Persistent link: https://www.econbiz.de/10010573468
Fatty acids as phase change materials have attracted much attention for their various applications in building energy efficiency, solar heating systems and air-conditioning systems. After summarizing the basic characteristics of fatty acids, eutectic mixtures of fatty acids and fatty acid...
Persistent link: https://www.econbiz.de/10010719442
In this study, gas and steam bottoming cycles, driven by the exhaust gas of Gas turbine cycle, are analyzed thermodynamically. The waste heat of the Gas turbine topping cycle (GT) exhaust gas is used partially to heat the air in the air bottoming cycle and partially to generate steam by passing...
Persistent link: https://www.econbiz.de/10012651895
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
On the basis of the Number of Transfer Units (NTU) method a functional relation between electric power for fans/pumps and effectiveness in dry coolers and wet cooling towers is developed. Based on this relation, a graphical presentation method of monitoring and simulation data of heat rejection...
Persistent link: https://www.econbiz.de/10011127938
Air solar heaters have more and more applications in many areas, including the building sector, food industry, and agricultural sector. This paper presents a novel construction of a forced air solar heater based on a confined single slot jet of air impinging on the flat surface of an absorber...
Persistent link: https://www.econbiz.de/10011208360