Results 41 to 50 of about 6,115 (200)

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

A Decision‐Making Model for Implementing Green Technology in Sustainable Building Projects

Business Strategy and the Environment, EarlyView.
ABSTRACT Green technology (GT) adoption is pivotal for reconciling environmental stewardship with economic viability in the built environment, particularly in resource‐constrained emerging economies. However, empirical evidence on how specific GT drivers actively mitigate adoption barriers remains scarce.
Abdelazim Ibrahim, Ahmed Farouk Kineber, Ayodeji Emmanuel Oke, Mehrdad Arashpour, M. K. S. Al‐Mhdawi, Abe Abimbola Maxwell   +5 more
wiley   +1 more source

Intelligent Control Framework of District Heating Systems Considering Waste Heat Utilization in Data Centers

Energy Science &Engineering, EarlyView.
A deep reinforcement learning–based control architecture is proposed to coordinate heat pumps, thermal storage, renewable energy, and demand response in data center waste heat recovery systems. The agent learns optimal control actions from system states and reward feedback to achieve electrical–thermal co‐optimization under realistic operational ...
Rendong Shen, Ruifan Zheng, Shengyuan Zhong, Lei Gu, Dongfang Yang, Jun Zhao   +5 more
wiley   +1 more source

A new generation of metal chillers to control the solidification structure of Al-4.5 wt%Cu alloy

Journal of Materials Research and Technology
This paper introduces and examines a new generation of chillers for judicious control of the solidification structure of cast metals and alloys. This innovative chiller makes use of the absorption of the latent heat of melting of a Phase Change Material (
Zohrehsadat Noohi, Behzad Niroumand, Masoud Panjepour, Giulio Timelli   +3 more
doaj   +1 more source

Research on a Temperature Control Device for Seawater Hydraulic Systems Based on a Natural Gas Hydrate Core Sample Pressure-Retaining and Transfer Device

Energies, 2019
In the study of natural gas hydrates, the maintenance of the low-temperature and high-pressure state of the core sample under in situ conditions is highly important for cutting, transferring, and subsequent analysis.
Peihao Zhang, Jiawang Chen, Qiaoling Gao, Bo Xiao, Xueqiao Geng, Peng Zhou   +5 more
doaj   +1 more source

Innovative Turbine Intake Air Cooling Systems and Their Rational Designing

Energies, 2020
The efficiency of cooling ambient air at the inlet of gas turbines in temperate climatic conditions was analyzed and reserves for its enhancing through deep cooling were revealed. A method of logical analysis of the actual operation efficiency of turbine
Andrii Radchenko, Eugeniy Trushliakov, Krzysztof Kosowski, Dariusz Mikielewicz, Mykola Radchenko   +4 more
doaj   +1 more source

Energetic analysis in a hot water system: A hotel facility case study

Journal of Sustainable Development of Energy, Water and Environment Systems, 2023
This paper evaluates the energy operational performance of a system to produce domestic hot water, from the use of waste heat in a centralized air conditioning system in a hotel in Cuba. The hotel facility has two different chillers capacities, where the
Yarelis Valdivia Nodal, Hernan Hernandez Herrera, Roy Reyes Calvo, Mario Álvarez Guerra, Jorge Silva, Miguel Santana Justiz, Hernan Hernandez Herrera   +6 more
doaj   +1 more source

Wet‐Transferred MoS2 on Passivated InP: A Van der Waals Heterostructure for Advanced Optoelectronic Applications

physica status solidi (RRL) – Rapid Research Letters, Volume 19, Issue 5, May 2025.
This study presents a photodetector based on atomically thin MoS2 on an InP substrate, forming an n‐MoS2/p‐InP type‐II staggered heterojunction. The device exhibits excellent rectifying properties with an ideality factor of 1.57 and achieves a peak photoresponsivity of 960 mA W−1, while MoS2 provides stable passivation for InP. III–V semiconductors are
Dong Hwi Choi, Jae Hyeop Lee, Min Su Kim, Jaeseo Park, Jun Oh Kim, Teli Aviraj Mahadev, Beknalkar Sonali Ajay, Hong Hyuk Kim, Jae Cheol Shin   +8 more
wiley   +1 more source

Understanding Interactions Between Sustainable Development Goals Within and Between Policy Programmes: The Case of Kenya's Dairy Sector

Sustainable Development, EarlyView.
ABSTRACT Achieving Agenda 2030 depends on addressing interactions between the sustainable development goals (SDGs). In this paper, we conceptualize SDG interactions as synergies or trade‐offs, incoming or outgoing, and internal or external, and analyze how SDG 2 (Zero Hunger) interacts with other SDGs within and across policy programmes that support ...
Annita Jepchirchir Kirwa, Sylvia Karlsson‐Vinkhuyzen, Todd Andrew Crane, Art R. P. J. Dewulf   +3 more
wiley   +1 more source

Finite Size‐Effects in Martensite Microstructure of Magnetic Shape Memory Films

Small, EarlyView.
Magnetic shape memory alloys are a promising multifunctional material system for integration into microsystems. Their multifunctionality arises from the coexistence of ferroelasticity and ferromagnetism. While size‐effects in ferromagnetic microstructure are well understood, corresponding experiments on the ferroelastic microstructure are sparse.
Satyakam Kar, Aman Singh, Kornelius Nielsch, Heiko Reith, Sebastian Fähler   +4 more
wiley   +1 more source