Results 31 to 40 of about 354 (185)
CFD SIMULATION OF UPWARD SUBCOOLED BOILING FLOW OF FREON R12
Acta Polytechnica CTU Proceedings, 2016 Subcooled flow boiling under forced convection occurs in many industrial applications of purpose to maximize heat removal from the heat source by the very large heat transfer coefficient. This work deals with CFD simulations of the subcooled flow boiling
Tomas Romsy, Pavel Zacha
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Mathematical analysis of heat balance model for the bubble growth in the subcooled boiling flow
Case Studies in Thermal Engineering, 2021 Subcooled boiling flow is a typical phenomenon of a high efficiency of heat transfer in the nuclear reactor. Bubble characteristic sizes are important parameters for the mechanism investigation of subcooled boiling flow.
Xiaomeng Dong +3 more
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International Journal of Advanced Nuclear Reactor Design and Technology, 2021 In this study, the heat transfer characteristics of one-side heated screw tubes were analyzed using subcooled flow boiling experiments. The experiments were performed until the critical heat flux was reached, while the applied heat flux was gradually ...
Ji Hwan Lim +6 more
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High‐Temperature Heat Pump Test Bench with n‐Butane (R‐600) Generating Steam
Chemie Ingenieur Technik, EarlyView.This work involves building a test bench for a high‐temperature heat pump (HTHP) and analyzing the measurements. The focus is on steam generation using an HTHP to decarbonize process steam demand. The findings indicate that stable steam generation is possible, providing a higher heat transfer coefficient in the heat pump's condenser.
Sebastian Benkert +7 more
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A Methodology to Integrate Closed‐Cycle Heat Pumps into Batch Distillation Columns
Chemie Ingenieur Technik, EarlyView.Batch distillation often cannot use vapor recompression due to contamination risks in food and pharma. This study proposes a design for integrating closed‐loop heat pumps using natural fluids. Results show significant energy savings, offering a sustainable alternative to traditional setups.
Philipp Dorn +5 more
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A Short‐Cut Design Approach to Evaluate Reboiler Designs in Vapor Recompression Scenarios
Chemie Ingenieur Technik, EarlyView.A short‐cut model framework that incorporates mechanical vapor recompression (MVR) requirements into reboiler design is presented, which is particularly beneficial during early process development with limited data or initial feasibility assessments.
Franziska Lais +2 more
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CFD for Subcooled Flow Boiling: Analysis of DEBORA Tests [PDF]
The Journal of Computational Multiphase Flows, 2014 In this work we investigate the present capabilities of CFD for wall boiling. The computational model used combines the Euler/Euler two-phase flow description with heat flux partitioning. Very similar modelling was previously applied to boiling water under high pressure conditions relevant to nuclear power systems.
Krepper, E., Rzehak, R.
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Chemie Ingenieur Technik, EarlyView.Mechanical vapor recompression integration in distillation is analyzed, focusing on feed preheating and column pressure drop. Binary methanol–water and benzene–toluene separations are studied to identify optimal designs, which are further assessed in a bioethanol vacuum distillation sequence regarding energetic, ecological, and economic performance ...
Thorben Hochhaus +3 more
wiley +1 more source
Heat Transfer, EarlyView.ABSTRACT This study investigates the thermal performance of innovative biphilic boiling surfaces designed for CPU cooling applications using a two‐phase closed thermosyphon (TPCT) system. The surfaces were fabricated by applying composite coatings—comprising epoxy resin and diatomite particles functionalized with APTES and PFOTS silanes— onto Al1050 ...
José Pereira +3 more
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Journal of Applied Fluid Mechanics, 2018 An experimental study of the subcooled boiling heat transfer of axial and swirling upward flows inside vertical mini annular gaps was conducted using deionized water.
S. Ahangar Zonouzi +3 more
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