This work gives an overview of the latest advancements in the technology of refrigeration. The work reviews various refrigeration technologies that have come across the globe in the recent past. The author analyses the effective expansion technology, pinch technology and nanotechnology for refrigeration. Moreover, the direct expansion geothermal refrigeration system, the heat driven absorption refrigeration technology, solar-driven ejector refrigeration technologies and the solar-driven hybrid absorption-thermochemical refrigeration system will be disscussed.
Table of Contents
CHAPTER-1
1.1 Effective expansion technology
1.2 Pinch technology
1.3 Bubble absorption refrigeration technology
1.4 Active off-grid refrigeration technology
1.5 Biomethane liquefaction technology
1.6 TES-backed up vapour compression refrigeration system
1.7 Nanotechnology for refrigeration
CHAPTER-2
2.1 A Combined power and refrigeration cycle
2.2 Organic absorption refrigeration processes
2.3 Biodegradable Refrigeration lubricant
2.5 Direct expansion geothermal refrigeration system
2.6 Hybrid dual-temperature absorption refrigeration system
2.7 Ejector sub cooled refrigeration system
CHAPTER-3
3.1 Cascade absorption refrigeration (CAR)
3.2 Ejector expansion refrigeration
3.3 Heat driven absorption refrigeration technology
3.4 Hybrid solar-assisted power refrigeration system
3.5 Hybrid refrigeration system for industrial waste recovery
3.6 Diffusion-absorption refrigeration technologies
3.7 Heat-driven ejector refrigeration systems
3.8 Fishing vessel refrigeration systems
3.9 Phase change Materials for Food Refrigeration Applications
CHAPTER 4
4.1 Absorption chillers
4.2 Solar sorption refrigeration technologies:
4.3 Solar-powered closed sorption refrigeration systems
4.4 Solar-driven ejector refrigeration technologies:
4.5 Magnetocaloric refrigeration effect:
4.6 Cascade Vapour Refrigeration Systems
CHAPTER-5
5.1 An Integrated Kalina and absorption refrigeration
5.2 A Multi-effect desalination unit equipped with a cryogenic refrigeration
5.3 A Two Stage Compression-Absorption Refrigeration System
5.4 Simulation Toolbox (DSST)
5.5 An alternative food transport refrigeration systems
5.6 Solar-driven hybrid absorption-thermochemical refrigeration system
CHAPTER-6
Research Objectives and Core Themes
This work provides a comprehensive review of recent technological advancements in the field of refrigeration, focusing on energy efficiency, the integration of renewable energy sources, and the development of sustainable, climate-friendly cooling processes across various industrial and domestic applications.
- Innovative expansion and absorption refrigeration technologies.
- Hybrid power and refrigeration cycles utilizing renewable energy.
- Advanced refrigeration system configurations for industrial waste heat recovery.
- Implementation of phase change materials and nanotechnology for thermal performance enhancement.
- Technological improvements in supermarket and transport refrigeration.
Excerpt from the Book
1.1 Effective expansion technology
improves expansion power and energy efficiency of vapour compression refrigeration systems. Murthy et al.[1] conducted an extensive review on the use of variety of expander mechanisms such as reciprocating piston, rolling piston, rotary vane, scroll, screw and turbine and their performance is reported. They observed that the trans-critical CO2 has reported COP of 30% whereas non - CO2 systems have registered their COP as 10%.The maximum expander efficiency was 83% obtained by the use of scroll expander in the CO2 refrigeration cycle. Further it is understood that recuperation of the energy of the expanders is an encouraging practice of refrigeration systems. Research on the topics such as irreversibility, heat transfer ,expansion process, internal leakage etc. is still open.
Summary of Chapters
CHAPTER-1: Covers fundamental technological improvements in refrigeration, including expander mechanisms, pinch technology, and emerging fields like nanotechnology and TES-backed systems.
CHAPTER-2: Focuses on advanced cycle configurations, such as combined power and refrigeration systems, organic absorption processes, and geothermal refrigeration implementations.
CHAPTER-3: Details specialized systems for industrial applications, including waste heat recovery, fishing vessel cooling, and the use of phase change materials for food refrigeration.
CHAPTER-4: Discusses climate-friendly and solar-driven technologies, including absorption chillers and the advancement of sorption-based cooling systems.
CHAPTER-5: Explores integrated and complex systems, such as Kalina-absorption cycles, two-stage compression-absorption models, and simulation toolboxes for lifecycle optimization.
Keywords
Refrigeration Technology, Energy Efficiency, Absorption Refrigeration, Vapour Compression, Renewable Energy, Solar Cooling, Waste Heat Recovery, Thermal Energy Storage, Nanotechnology, Sustainable Cooling, Exergy Analysis, Industrial Refrigeration, CO2 Refrigerants.
Frequently Asked Questions
What is the primary scope of this work?
This document serves as a quick review of recent technological developments in refrigeration, aggregating research on diverse cooling methodologies and their potential for energy saving and environmental impact reduction.
What are the central thematic areas covered?
The core themes include advanced expansion technologies, hybrid power/cooling cycles, utilization of industrial waste heat, solar-assisted refrigeration, and the application of new materials like PCMs and nanofluids.
What is the ultimate goal of the research presented?
The goal is to catalog and examine innovative solutions that move away from traditional, energy-intensive refrigeration toward more sustainable, high-efficiency, and environmentally responsible systems.
Which scientific methods are primarily employed in the referenced studies?
The cited studies utilize a mix of thermodynamic modeling, exergy analysis, techno-economic evaluations, mathematical simulations, and experimental performance testing under various operating scenarios.
What does the main body of the work focus on?
The main body systematically categorizes various refrigeration advancements ranging from component-level improvements (like expanders) to large-scale system integrations (like hybrid power-cooling cycles) and specialized industry applications.
Which keywords best characterize these research efforts?
Key terms include refrigeration efficiency, absorption technology, renewable energy integration, environmental sustainability, and thermodynamic optimization.
How does the use of CO2 as a refrigerant impact system performance?
As discussed in the review of transcritical R744 and geothermal systems, CO2 systems have demonstrated significant potential for energy savings and reduced environmental impact when compared to traditional refrigerants.
Why is the integration of industrial waste heat recovery significant?
Recovery of low-grade waste heat via technologies like cascade absorption refrigeration is crucial because it utilizes energy that would otherwise be discarded, thereby enhancing the overall thermal efficiency of industrial processes.
- Arbeit zitieren
- Nithish Reddy (Autor:in), Ms. Keerthi (Autor:in), 2020, Recent technological advancements in the refrigeration technology, München, GRIN Verlag, https://www.grin.com/document/516556
