Results 41 to 50 of about 1,326 (180)

Modelagem do sistema de resfriamento por imersão de carcaças de frangos utilizando redes neurais artificiais = Modeling of the poultry carcass immersion chilling system using artificial neural networks

Acta Scientiarum: Technology, 2009
A modelagem matemática fenomenológica do processo de resfriamento decarcaças de frango em chillers é complexa pela quantidade de variáveis que interferem no processo, além de tratar de um problema que envolve transferência de calor e de massa em regime ...
Túlio Klassen, Tiago Dias Martins, Lucio Cardozo Filho, Edson Antonio da Silva   +3 more
doaj  

Modelling and performance assessment of a Tri–Generation cooling system using two adsorption chillers under Jordanian climate

Case Studies in Thermal Engineering, 2023
In this study, the performance of a Tri-Generation cooling system employing two adsorption chillers will be analysed experimentally and theoretically utilizing the TRNSYS software.
Mai Bani Younes, Nabeel Abu Shaban, Yousef Altork   +2 more
doaj   +1 more source

Additive Manufacturing of Ni‐Based Thermoelectric Materials for Waste Heat Recovery

Advanced Materials Technologies, EarlyView.
Thermoelectric generators convert waste heat into electricity but are constrained by conventional fabrication. Here, laser powder bed fusion enables direct printing of customised n‐type Cu60Ni40 and p‐type Ni90Cr10 legs. The assembled module achieves 0.8% efficiency at ΔT = 419 K, demonstrating scalable additive manufacturing of eco‐friendly, design ...
Karolin Amstein, Aayush Dobhal, Heiko Reith, Ran He, Julia Kristin Hufenbach, Kornelius Nielsch, Pingjun Ying   +6 more
wiley   +1 more source

Experimental Research on Design and Operation Characteristics of Large Temperature Difference Centrifugal Chiller

Zhileng xuebao, 2021
Chilled water systems with large temperature differences are important for the design of energy-saving heating, ventilation, and air-conditioning systems, as they can reduce the energy consumption of chilled water pumps.
Zhou Yu, Zhuo Mingsheng, Zhang Longai
doaj  

Critical Limitations in Cryogenic Laser Cooling of Solids: Symmetry‐Related Fluorescence Trapping and Condensation‐Induced Parasitic Heating

Advanced Science, EarlyView.
This study uncovers two overlooked bottlenecks in cryogenic laser cooling of solids: symmetry‐driven fluorescence trapping and water vapor condensation. We demonstrate that breaking sample symmetry enhances fluorescence escape, while condensation dominates parasitic heating below 135 K.
Biao Zhong, Jiayi Zhang, Haodong Yang, Lianzhong Deng, Mauro Tonelli, Ercang Luo   +5 more
wiley   +1 more source

Compliant Polymeric Sheet‐Based Heat Exchangers

Advanced Science, EarlyView.
This work presents flexible, transparent, and deployable polymer heat exchangers that achieve a heat transfer capacity per cost up to 4x higher than the state of the art, surpassing both metal and other polymer counterparts. The tube‐on‐tube design enables efficient heat transfer without flow occlusion, while the lightweight, corrosion‐resistant, and ...
Richard J. Fontenot, Loic Duggal, Sofia Urbina, Barclay Jumet, Anoop Rajappan, Daniel J. Preston   +5 more
wiley   +1 more source

Experimental validation of the RESPONSE framework against cyberattacks on cyber‐physical process systems

AIChE Journal, EarlyView.
Abstract This work experimentally validates the RESPONSE (Resilient Process cONtrol SystEm) framework as a solution for maintaining safe, continuous operation of cyber‐physical process systems under cyberattacks. RESPONSE implements a dual‐loop architecture that runs a networked online controller in parallel with a hard‐isolated offline controller ...
Luyang Liu, Pu Du, Zaman Sajid, Benjamin Wilhite, Costas Kravaris, Faisal Khan   +5 more
wiley   +1 more source

Performance Investigation of Eco‐Friendly Refrigerant Mixtures as an Alternative to R134a in Vapour‐Compression Refrigeration System

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The growing impacts of climate change and energy scarcity demand environmentally sustainable refrigeration solutions. This study investigates eco‐friendly refrigerants (R152a, R290 and R600a) and their optimized ternary mixture as alternatives to R134a. Four blend compositions were analysed using experimental testing and REFPROP 10.0 modelling
M. Periyasamy, P. Senthilkumar
wiley   +1 more source

Effects of different slaughterhouse water chiller temperatures on the microbial quality of poultry carcasses

Journal of Zoonotic Diseases
Pathogenic bacteria are the cause of many human food poisonings during the consumption of contaminated poultry products. This study was conducted to investigate the difference in the microbial load of poultry carcasses slaughtered at different ...
Seyedeh Ommolbanin Ghasemian, Abbas Fardaei, Ehsan Gharib Mombeni   +2 more
doaj   +1 more source

A Comparative Study of the Oil-Free Centrifugal Water Chillers with the Flooded or Falling Film Evaporator—A Case Study

Energies, 2019
A comparative study regarding the performance of real-scale oil-free centrifugal chillers having the flooded evaporator or falling film evaporator was conducted in this study.
Kuo-Shu Hung, Jenn-Chyi Chung, Chung-Che Liu, Jun-Jie Lin, Chi-Chuan Wang   +4 more
doaj   +1 more source