-
24941
Simulation of stress, strain and heat generation in landing gear
Published 2014“…In this project, COMSOL version 4.3b, an updated version was used to study the heat and stress generation of the landing gear during an aircraft's landing using the multibody dynamics and heat transfers in solids modules. Landing gear is an important structural component of the aircraft and the taking off and landing of the aircraft is considered the most crucial and dangerous operations during a flight. …”
Get full text
Final Year Project (FYP) -
24942
Analysis of magnetized micropolar fluid subjected to generalized heat-mass transfer theories
Published 2023-10-01“…The effect of the chemical reaction under the generalized Fourier–Fick law is considered to investigate the heat transference rate at the vertical sheet. Under the flow assumptions, the boundary layer approximations were applied to the nonlinear differential equations and partial differential equations were obtained. …”
Get full text
Article -
24943
Analytical Solutions and Optimization of the Exo-Irreversible Schmidt Cycle with Imperfect Regeneration for the 3 Classical Types of Stirling Engine Solutions analytiques et opti...
Published 2011-11-01“…In addition to new proper analytical solutions for regeneration that dramatically reduce computing time, this study of the Schmidt-Stirling engine cycle is carried out from an engineer-friendly viewpoint introducing exo-irreversible heat transfers. The reference parameters are the technological or physical constraints: the maximum pressure, the maximum volume, the extreme wall temperatures and the overall thermal conductance, while the adjustable optimization variables are the volumetric compression ratio, the dead volume ratios, the volume phase-lag, the gas characteristics, the hot-to-cold conductance ratio and the regenerator efficiency. …”
Get full text
Article -
24944
Revisiting the climate impacts of cool roofs around the globe using an Earth system model
Published 2016-01-01“…Solar reflective ‘cool roofs’ absorb less sunlight than traditional dark roofs, reducing solar heat gain, and decreasing the amount of heat transferred to the atmosphere. Widespread adoption of cool roofs could therefore reduce temperatures in urban areas, partially mitigating the urban heat island effect, and contributing to reversing the local impacts of global climate change. …”
Get full text
Article -
24945
Transient Performance of Nuclear Reactor Pressure Vessel Main Seal
Published 2023-01-01“…It is found that, there is a high resistance to the heat transferring between bolts and flange due to the existence of bolt holes. …”
Get full text
Article -
24946
User Based Design of Medical Devices for Translation from Prototype to Clinical Device
Published 2022“…The breaking of the tubing is investigated and recommendations for future designs include reducing the heat transferred to the tubing or using a tubing material with a higher tear strength, lower compression set, and/or higher yield strength. …”
Get full text
Thesis -
24947
CFD simulation of membrane-based energy recovery ventilator in air-conditioning system with experimental validation
Published 2018“…The efficiency of the ERV membrane is evaluated. The heat transferred and the mass diffused through the membrane are obtained. …”
Get full text
Thesis -
24948
Simulation investigation on spatial deflection of multiples fractures of multistage perforation clusters in hydraulic fracturing
Published 2023-09-01“…Compared with the sequential fracturing of multiple perforation clusters, the simultaneous fracturing would increase the stress shadow areas, and the alternate fracturing may conversely reduce the stress shadow areas to alleviate 3D propagation disturbance of fracture network to form an effective scheme for optimizing the spatial morphology of fracturing fracture network. The heat transfers between the fracturing fluid and the rock matrix in deep tight rock reservoirs, and the fracture propagation area and volume under each fracturing scheme were significantly enhanced, indicating that the thermal effect promoted fracture propagation and became an important factor affecting the fracture propagation.…”
Get full text
Article -
24949
Coke Formation During Hydrocarbons Pyrolysis. Part One: Steam Cracking Formation de coke pendant la pyrolise des hydrocarbures. Première partie : vapocraquage
Published 2006-11-01“…Thermal cracking is always accompanied by coke formation, which becomes deposited on the wall and limits heat transfers in the reactor while increasing pressure drops and possibly even plugging up the reactor. …”
Get full text
Article -
24950
Double skin polystyrene- aluminium radiation reflector roofs in arid environments for passive cooling - A case study in Sohar, Sultanate of Oman
Published 2021-12-01“…Integration of polystyrene foam thermal insulator, air ventilation and aluminium radiation reflector in the passive cool roof system reduces conduction, convection, and radiation heat transfers, respectively between the roof and ceiling. …”
Get full text
Article -
24951
Avaliação de oxigenador de membrana infantil em ovinos Evaluation of infant membrane oxygenator in sheep
Published 2008-09-01“…The following values were obtained: values of oxygen transference (TTO2) and carbon dioxide transference (TTCO2), haemoglobin (HBS) and free haemoglobin (HBL), the score of platelets and of leucocytes, and heat transference rate. RESULTS: TTO2 and TTCO2 were adequate. …”
Get full text
Article -
24952
Experimental Investigation of a Solar Greenhouse Heating System Equipped with a Parabolic Trough Solar Concentrator and a Double-Purpose Flat Plate Solar Collector
Published 2017-09-01“…At night, when the greenhouse temperature is lower than tank temperature, the fluid flows in a reverse direction through the solar collector and the stored heat transferred from the collector surface to the greenhouse. …”
Get full text
Article