Results 111 to 120 of about 2,491 (296)

Performance of ejector refrigeration cycle using a steady flow model

Revista Facultad de Ingeniería Universidad de Antioquia
A study of an alternative ejector cooling system is proposed in this paper. A mathematical model without irreversibility is developed and simulated. The numerical results are validated with literature data for two working fluids (R134a and R152a).
Leonardo Esteban Pacheco-Sandoval, Carlos Alirio Díaz-González, Germán David Acebedo-Roncancio, Miguel Ángel Rodríguez-Camacho   +3 more
doaj   +1 more source

A Literature Survey of Alternative Refrigerants During Single Phase Heat Transfer

, 2000
A number of new alternative refrigerants have been proposed in the past several years to replace the existing refrigerants used in air-conditioning equipment.
Krueger, B.A., Krueger, B.D., Newell, T.A., Chato, J.C.   +3 more
core  

Lessons From Drug Discovery for Cryoprotective Agent Design: An AI‐Oriented Perspective

Advanced Science, EarlyView.
Cryoprotectant design is reframed through the lens of drug discovery as a multiparameter optimization problem. This perspective highlights how AI and systematic design strategies could enable safer, more effective cryoprotectants, while identifying key limitations that currently constrain predictive progress in cryobiology. ABSTRACT Cryopreservation is
Dominika Wilczok, Jesús Valdés‐Hernández, Varinia Bernales, Alán Aspuru‐Guzik, Alex Zhavoronkov   +4 more
wiley   +1 more source

Influence of sub-cooling on the energy performance of two ecofriendly R22 alternative refrigerants

, 2015
In this study, the effects of sub-cooling on the various refrigeration cycle performance parameters using the alternative refrigerants (R432A and R433A) as working fluids were evaluated theoretically and compared with those obtained using the baseline ...
Bolaji, B
core   +1 more source

Closed‐Loop Radiative Cooling Mulch Upcycled From Agricultural Residues for Efficient Soil Heat–Water Stress Mitigation

Advanced Science, EarlyView.
Conventional passive radiative cooling films rely on costly feedstocks and energy‐intensive fabrication, with poor end‐of‐life compatibility in agriculture. To address this challenge, a sustainable radiative cooling mulch (SRCM) is developed from waste maize leaves via spontaneous hydrogen‐bond self‐assembly.
Hao Li, Dong Lv, Yang Fu, Cancheng Jiang, Wenqi Wang, Ze Li, Lin Liang, Jiayu Du, Jie Tan, Yihao Zhu, Wenjie Liu, Lamfeddal Kouisni, Kaixin Lin, Chi Yan Tso   +13 more
wiley   +1 more source

Solar‐Driven Bifunctional Adsorption‐Storage Films for Ultra‐Fast Dehumidification and Freshwater Supply in Low‐carbon Buildings

Advanced Science, EarlyView.
Bifunctional adsorption‐storage films enable autonomous indoor humidity regulation and freshwater harvesting, rapidly decreasing relative humidity from 90.7% to 21.6% within one hour while producing 1.1 kg·m−2·day−1 of water, offering a passive route towards energy‐efficient humidity control and sustainable indoor environments. ABSTRACT Indoor humidity
Yuechao Chao, Junwei Liu, Zhihua Zhou, Yahui Du, Hailu Wei, Haibin Yang, Xueqing Yang, Cheng Wang, Zhenzhong Zeng, Hongzhi Cui, Jinyue Yan   +10 more
wiley   +1 more source

Advancements in Low-GWP Refrigerant Substitution and Lubricant Technologies for Variable Refrigerant Flow Systems

Zhileng xuebao
Against the backdrop of global climate change mitigation and the accelerating transition toward low-GWP refrigerants， research on alternative refrigerants for variable refrigerant flow （VRF） systems has emerged as a critical focus in refrigeration and ...
He Hongxia Yang Zhao Zhang Shuping
doaj  

Fundamental Challenges, Physical Implementations, and Integration Strategies for Ising Machines in Large‐Scale Optimization Tasks

Advanced Electronic Materials, EarlyView.
Ising machines are emerging as specialized hardware solvers for computationally hard optimization problems. This review examines five major platforms—digital CMOS, analog CMOS, emerging devices, coherent optics, and quantum systems—highlighting physics‐rooted advantages and shared bottlenecks in scalability and connectivity.
Hyunjun Lee, Joon Pyo Kim, Sanghyeon Kim
wiley   +1 more source

A study of alternative refrigerants for the refrigeration and air conditioning sector in Mauritius

IOP Conference Series: Earth and Environmental Science, 2017
The most frequently used refrigerants in the refrigeration and air conditioning (RAC) sector in Mauritius are currently hydrochlorofluorocarbons (HCFC) and hydrofluorocarbons (HFC). However, because of their strong influence on global warming and the impact of HCFCs on the ozone layer, refrigerants such as ammonia (NH3), carbon dioxide (CO2) and ...
openaire   +1 more source

ANALYSIS OF USING ALTERNATIVE REFRIGERANTS FOR ENERGY SAVING IN DESIGN FRAMEWORK OF AIR-CONDITIONING SYSTEM

, 2017
Environmental issues enforce us to find environmental friendly alternative refrigerants. Increasing energy consumption as consequence of widespread usage of air-conditioning systems needs effort to find efficient systems.
Astina, I Made, Warsito, Warsito, Darmanto, Prihadi Setyo, Adryanto, Edwin   +3 more
core