A5002446913- Shape Memory Alloy Transformations
- High Temperature Alloys and Creep
- Refrigeration and Air Conditioning Technologies
- Advanced Thermodynamic Systems and Engines
- Mechanical Behavior of Composites
- Innovations in Concrete and Construction Materials
- Fatigue and fracture mechanics
- Additive Manufacturing and 3D Printing Technologies
- Metal Alloys Wear and Properties
- Adsorption and Cooling Systems
- Microstructure and Mechanical Properties of Steels
- Titanium Alloys Microstructure and Properties
- Metallurgy and Material Forming
- Magnetic and transport properties of perovskites and related materials
- Surface Treatment and Residual Stress
- 3D Surveying and Cultural Heritage
- Tribology and Wear Analysis
- Gear and Bearing Dynamics Analysis
- Ancient and Medieval Archaeology Studies
- Image Processing and 3D Reconstruction
- Regional Development and Management Studies
- Advanced machining processes and optimization
- Geodetic Measurements and Engineering Structures
- Quality and Management Systems
- 3D Modeling in Geospatial Applications
University of Ljubljana
2013-2024
In recent years, elastocaloric cooling has shown great potential as an alternative to vapor-compression refrigeration. However, there is still no existing device that offers fatigue-resistant operation and yet high cooling/heat-pumping performance. Here, we introduce a new design of regenerator based on compression-loaded Ni-Ti tubes, referred shell-and-tube-like regenerator. Our design, which can operate in both heat-pumping modes, enables durable record performance with maximum temperature...
The elastocaloric cooling, utilizing latent heat associated with martensitic transformation in shape-memory alloys, is being considered the recent years as one of most promising alternatives to vapour compression cooling technology. It can be more efficient and completely harmless environment people. In first part this work, basics effect (eCE) state-of-the-art field materials devices are presented. second part, we addressing crucial challenges designing active regenerators, which currently...
Elastocaloric cooling is emerging as one of the most promising alternatives to vapor-compression technology. It based on elastocaloric effect (eCE) shape memory alloys (SMAs), which occurs due a stress-induced martensitic transformation (superelasticity). In recent years, several proof-of-concept devices have been developed and best them already achieved commercially relevant characteristics. However, proposed are not yet ready for commercialization, mostly their short fatigue life,...
Due to the versatility of its implementation, additive manufacturing has become enabling technology in research and development innovative engineering components. However, many experimental studies have shown inconsistent results highlighted multiple defects materials’ structure thus bringing adoption method practical applications into question, yet limited work been carried out material modelling such cases. In order account for effects accumulated defects, a micromechanical analysis based...
This study examines the potential application of elastocaloric refrigeration (eC) technology for subcooling CO2 in transcritical single-stage cycles. Elastocaloric refrigeration, a solid-state technology, possesses significant untapped due to its environmentally friendly characteristics, primarily lack harmful operational fluids. However, direct stand-alone has been limited relatively small temperature spans produced by current proof-of-concept devices. Efforts scientific community have...
The behavior of shape memory alloys (SMAs) varies significantly when subjected to tension, compression, or torsion, greatly influencing their applications in engineering. Despite considerable advancements this field, accurate modeling the SMAs under various loading conditions remains an ongoing challenge. In study, we propose a flexible approach improving response constitutive models and torsion by varying material parameters model with novel asymmetric function. function ensures independent...
A number of engineering components, such as gears, shafts, and bearings, are frequently subjected to high very localized, static dynamic stresses strains. In order increase the load-carrying capacity durability various types treatments may be applied, primarily including heat treatments. particular, surface used selectively enhance load-bearing most heavily stressed regions component. As a consequence, resulting material exhibits layer that is considerably harder stronger than at core. Such...
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SummaryIn recent years, elastocaloric cooling has shown great potential as an alternative to vapor compression refrigeration. However, there is still no existing device that offers fatigue-resistant operation and yet high cooling/heat-pumping performance. Here, we introduce a new concept of regenerator based on compression-loaded Ni-Ti tubes, referred shell-and-tube-like regenerator. Our concept, which can operate in both heat-pumping modes, enables durable record performance with maximum...