Showing 51 - 60 of 204
The present article reports on the feasibility of using encapsulated phase change materials (EPCMs) in the dehumidifying bed of a desiccant cooling system. The mathematical model used to simulate the coupled non-equilibrium heat and moisture transfer processes in the porous composite structure...
Persistent link: https://www.econbiz.de/10010807076
In this study, heat transfer and thermal performance of a periodically dimple-protrusion patterned surface have been investigated to enhance energy-efficiency in compact heat exchangers. The local heat transfer coefficients on the dimple/protrusion walls are derived using a transient TLC...
Persistent link: https://www.econbiz.de/10010807738
Spray cooling is an effective method for dissipating high heat fluxes in the field of electronics thermal control. In this study, experiments were performed with distilled water as a test liquid to study the spray cooling heat transfer in non-boiling regime. A Phase Doppler Anemometry (PDA) was...
Persistent link: https://www.econbiz.de/10010807807
The mathematical model of plate heat exchanger (PHE) is developed using decomposition of the plate on its main corrugated field, which cause major effect on heat transfer, and distribution zone, which influences mostly the hydraulic performance. Model is validated on experimental data for some...
Persistent link: https://www.econbiz.de/10010808110
In this paper, a physical model is built to study the eutectic and progressive melting of salt solution in DSC (Differential Scanning Calorimetry) cells. The finite volume method is utilized to solve the heat transfer problem, and the general implicit source-based enthalpy method is employed to...
Persistent link: https://www.econbiz.de/10010808556
The purpose of the research is to verify the viability and the applicability of TPCT (two-phase closed thermosyphon) sucker Rod in cyclic steam stimulation for heavy oils. On the basis of the previous researches and the basic principles of TPCT, the laboratory experiment system was setup and the...
Persistent link: https://www.econbiz.de/10010808590
Most of the efforts to improve energy system configurations are directed towards the recovery of internal heat, which reduces the contribution of the external hot source and enhance system efficiency accordingly. This problem is strictly related to the synthesis of different components into...
Persistent link: https://www.econbiz.de/10010808666
In this paper, exergy transfer effectiveness is defined to describe the performance of heat exchangers operating above/below the surrounding temperature with/without finite pressure drop. It is discussed systemically that the effects of heat transfer units number, the ratio of the heat capacity...
Persistent link: https://www.econbiz.de/10010808678
In the current context of global warming due to CO2 (carbon dioxide) emissions, mainly produced by power plants and road transportation, it is imperative to optimize the operation of thermal engines in general and of gas turbines in particular. This requires accurate knowledge of their...
Persistent link: https://www.econbiz.de/10010808719
This paper is concerned with heat transfer analysis and life prediction in the after shell section of a gas turbine combustion liner with internal cooling passage. The method in the present study is the process to design cooling systems which enhance the material lifetime as well as the cooling...
Persistent link: https://www.econbiz.de/10010808791