Results 41 to 50 of about 14,835 (276)

A Methodology to Integrate Closed‐Cycle Heat Pumps into Batch Distillation Columns

open access: yesChemie 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
wiley   +1 more source

A Short‐Cut Design Approach to Evaluate Reboiler Designs in Vapor Recompression Scenarios

open access: yesChemie 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
wiley   +1 more source

Impact of Distillation Column Design on Potential for the Integration of Mechanical Vapor Recompression

open access: yesChemie 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

Effect of Subcooling Circuit on Performance of Multi-split VRF System

open access: yesZhileng xuebao, 2018
The effect of the subcooling circuit on the cooling and heating performances of a multi-split VRF system was studied experimentally and a control strategy for multi-split VRF system with subcooling circuit is proposed in the paper.
Li Ziai   +4 more
doaj  

Experimental Study on Heating Performance of Air-source Heat Pump with Natural Cold Source Subcooling

open access: yesZhileng xuebao, 2021
There are many natural cold sources in the northern China in winter, and thermodynamic analysis shows that the heat released by the working medium subcooling can be compensated in the isothermal heat absorption process of the evaporator. To determine the
Niu Jianhui, Bu Qiujun
doaj  

Solidification behavior of Fe3O4 coated multi-wall carbon nanotube cool storage medium

open access: yesShenzhen Daxue xuebao. Ligong ban, 2023
In order to solve the problem of large subcooling degree and low solidification efficiency of traditional ice storage mass, highly stable Fe3O4 coated multi-walled carbon nanotube (MWCNT) nanocomposites were prepared by adding acid treatment and ...
XING Meibo   +4 more
doaj   +1 more source

Dynamics of a two-dimensional vapor bubble confined between superheated or subcooled parallel plates [PDF]

open access: yes, 2010
The dynamics of a long, two-dimensional vapor bubble confined in the gap between two superheated or subcooled parallel plates is analyzed theoretically. The unsteady expansion and/or contraction of the bubble is driven by mass transfer between the liquid
Das, K.S., Wilson, S.K.
core   +1 more source

EventFlow: Real‐time neuromorphic event‐driven classification of two‐phase boiling flow regimes

open access: yesDroplet, EarlyView.
We present a real‐time flow regime classification framework that integrates neuromorphic event‐driven sensing with deep recurrent neural networks. Unlike traditional frame‐based approaches, our system captures sparse event streams from an event‐based camera, representing only the dynamic brightness changes at the individual pixel level.
Sanghyeon Chang   +9 more
wiley   +1 more source

Recent Advances in Pickering Emulsion Templated Phase Change Material Microcapsules: Design, Fabrication, and Multifunctional Applications

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Fabrication process of phase change microcapsules using a Pickering emulsion template method and their subsequent applications. The increasing demand for efficient thermal energy storage systems has driven the development of phase change material microcapsules (PCMMs), which provide high energy‐storage density, reversible phase change, and reduced ...
Ziyan Li   +4 more
wiley   +1 more source

Numerical Simulation of Subcooled Flow Boiling in a Threaded Tube and Investigation of Heat Transfer and Bubble Behavior

open access: yesEnergies, 2023
Three-dimensional subcooled flow boiling of R134a in a threaded tube was numerically simulated at the conditions of 200~400 kW/m2 heat flux, 3~20 K inlet subcooling, and 0.2~0.6 m/s inlet velocity. The bubble behavior in the horizontal threaded tube with
Ke Lei   +3 more
doaj   +1 more source

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