☆ 4.7 Article

Improving efficiency of transcritical CO2 cycles through a magnetic refrigeration subcooling system

ENERGY CONVERSION AND MANAGEMENT (2022)

Related references

Note: Only part of the references are listed.

Article Thermodynamics

Experimental assessment of dedicated and integrated mechanical subcooling systems vs parallel compression in transcritical CO2 refrigeration plants

Laura Nebot-Andres et al.

Summary: Mechanical subcooling systems have great potential to improve CO2 refrigeration systems. The COP increments of these systems have been theoretically determined, but not yet experimentally contrasted. In this study, the dedicated and integrated mechanical subcooling systems are experimentally compared to the parallel compression system. The results show significant improvements in COP for both subcooling systems compared to the base system.

ENERGY CONVERSION AND MANAGEMENT (2022)

Add to Collection

Article Thermodynamics

Performance assessment of a rotary active magnetic regenerator prototype using gadolinium

M. Masche et al.

Summary: An experimental rotary magnetocaloric prototype utilizing active magnetic regeneration was presented as an alternative to traditional cooling systems. The prototype achieved efficient cooling using gadolinium spheres and water mixed with ethylene glycol as the refrigerant and heat transfer fluid, respectively. Operating near room temperature, the system demonstrated cooling powers exceeding 800 W at 1.4 Hz, comparable to existing magnetocaloric devices.

APPLIED THERMAL ENGINEERING (2022)

Add to Collection

Article Thermodynamics

A lumped-element magnetic refrigerator model

A. T. D. Nakashima et al.

Summary: This study presents a dynamic lumped parameter model to predict the cabinet temperature, energy consumption and efficiency parameters of a small capacity magnetic refrigerator. The model's primary inputs are geometric features, power source frequencies and speeds, and magnetic material compositions and properties. Special emphasis is placed on the lumped AMR model, which accurately predicts performance based on experimental validation.

APPLIED THERMAL ENGINEERING (2022)

Add to Collection

Article Thermodynamics

Experimental determination of the optimum working conditions of a commercial transcritical CO2 refrigeration plant with a R-152a dedicated mechanical subcooling.

Laura Nebot-Andres et al.

Summary: This study experimentally tested the working performance of a transcritical CO2 plant with an R-152a DMS system and found the optimal operating parameters for maximizing COP under different working conditions. The results show that different working conditions, such as ambient temperature and cold source temperature, can significantly impact the cooling capacity and COP of the system. Two correlations were proposed to determine the optimal pressure and subcooling degree for CO2 plants using DMS based on gas-cooler outlet temperature and evaporation level.

INTERNATIONAL JOURNAL OF REFRIGERATION (2021)

Add to Collection

Article Thermodynamics

A numerical modelling of a multi-layer LaFeCoSi Active magnetic regenerator by using Artificial Neural Networks

Angelo Maiorino et al.

Summary: In the field of magnetic refrigeration, the limitation of low adiabatic temperature changes in magnetocaloric materials has led researchers to focus on developing multi-layer Active Magnetic Regenerators. The integration of numerical models with Artificial Neural Networks has shown to improve the accuracy and reliability of the model, aiding in the optimization of magnetic refrigeration system configurations.

APPLIED THERMAL ENGINEERING (2021)

Add to Collection

Article Thermodynamics

Experimental determination of the optimum intermediate and gas-cooler pressures of a commercial transcritical CO2 refrigeration plant with parallel compression

Laura Nebot-Andres et al.

Summary: This study presents an experimental optimization of a transcritical CO2 plant with parallel compression, aiming to improve its energy efficiency. By testing different discharge pressures and secondary compressor speeds, optimal working conditions and performance parameters achievable in real operations were identified.

APPLIED THERMAL ENGINEERING (2021)

Add to Collection

Article Thermodynamics

Performance analysis of a high-efficiency multi-bed active magnetic regenerator device

M. Masche et al.

Summary: The active magnetic regenerator prototype utilizes a multi-bed concept and parallel flow circuit, with a powerful permanent magnet and mixed alloy particles. The opening behavior of solenoid valves is adjusted to correct flow imbalances, achieving a maximum cooling power of 815 W, with system performance affected by flow imbalances.

APPLIED THERMAL ENGINEERING (2021)

Add to Collection

Article Thermodynamics

Novel design of a high efficiency multi-bed active magnetic regenerator heat pump

S. Dall'Olio et al.

Summary: The design features a unique magnet and regenerator construction, allowing operation at high frequencies and providing efficient cooling performance.

INTERNATIONAL JOURNAL OF REFRIGERATION (2021)

Add to Collection

Article Thermodynamics

Experimental determination of the optimum working conditions of a transcritical CO2 refrigeration plant with integrated mechanical subcooling

Laura Nebot-Andres et al.

INTERNATIONAL JOURNAL OF REFRIGERATION (2020)

Add to Collection

Article Thermodynamics

Experimental enhancement of a CO2 transcritical refrigerating plant including thermoelectric subcooling

D. Sanchez et al.

INTERNATIONAL JOURNAL OF REFRIGERATION (2020)

Add to Collection

Review Green & Sustainable Science & Technology

Review on the developments of active magnetic regenerator refrigerators - Evaluated by performance

Muhammad Sajid Kamran et al.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2020)

Add to Collection

Article Thermodynamics

Improvements in the cooling capacity and the COP of a transcritical CO2 refrigeration plant operating with a thermoelectric subcooling system

D. Astrain et al.

APPLIED THERMAL ENGINEERING (2019)

Add to Collection

Review Thermodynamics

A review of the state of the art of solid-state caloric cooling processes at room-temperature before 2019

A. Greco et al.

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID (2019)

Add to Collection

Article Thermodynamics

Subcooling methods for CO2 refrigeration cycles: A review

Rodrigo Llopis et al.

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID (2018)

Add to Collection

Article Thermodynamics

Integrated supermarket refrigeration for very high ambient temperature

Nilesh Purohit et al.

ENERGY (2018)

Add to Collection

Article Thermodynamics

An application of the artificial neural network to optimise the energy performances of a magnetic refrigerator

Ciro Aprea et al.

INTERNATIONAL JOURNAL OF REFRIGERATION (2017)

Add to Collection

Article Thermodynamics

Experimental evaluation of transcritical CO2 refrigeration with mechanical subcooling

John Bush et al.

SCIENCE AND TECHNOLOGY FOR THE BUILT ENVIRONMENT (2017)

Add to Collection

Article Thermodynamics

The energy performances of a rotary permanent magnet magnetic refrigerator

Ciro Aprea et al.

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID (2016)

Add to Collection

Article Thermodynamics

Performance evaluation of an active magnetic regenerator for cooling applications - part II: Mathematical modeling and thermal losses

Paulo V. Trevizoli et al.

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID (2016)

Add to Collection

Article Thermodynamics

Development of a novel rotary magnetic refrigerator

Jaime A. Lozano et al.

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID (2016)

Add to Collection

Article Thermodynamics

Experimental evaluation of a CO2 transcritical refrigeration plant with dedicated mechanical subcooling

Rodrigo Llopis et al.

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID (2016)

Add to Collection

Article Thermodynamics

The application of a desiccant wheel to increase the energetic performances of a transcritical cycle

Ciro Aprea et al.

ENERGY CONVERSION AND MANAGEMENT (2015)

Add to Collection

Article Thermodynamics

Design and experimental tests of a rotary active magnetic regenerator prototype

D. Eriksen et al.

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID (2015)

Add to Collection

Article Thermodynamics

Energy improvements of CO2 transcritical refrigeration cycles using dedicated mechanical subcooling

Rodrigo Llopis et al.

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID (2015)

Add to Collection

Article Thermodynamics

Initial experimental results from a rotary permanent magnet magnetic refrigerator

Ciro Aprea et al.

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID (2014)

Add to Collection

Review Engineering, Multidisciplinary

Review on Methods to Fix Number of Hidden Neurons in Neural Networks

K. Gnana Sheela et al.

MATHEMATICAL PROBLEMS IN ENGINEERING (2013)

Add to Collection

Article Automation & Control Systems

Selection of Proper Neural Network Sizes and Architectures-A Comparative Study

David Hunter et al.

IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS (2012)

Add to Collection

Review Green & Sustainable Science & Technology

Applications of artificial neural networks for refrigeration, air-conditioning and heat pump systems-A review

M. Mohanraj et al.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2012)

Add to Collection

Article Thermodynamics

Energy and exergy analysis of a combined transcritical CO2 compression refrigeration and single effect H2O-LiBr vapour absorption system

Akhilesh Arora et al.

INTERNATIONAL JOURNAL OF EXERGY (2011)

Add to Collection

Article Thermodynamics

Dynamic operation of an active magnetic regenerator (AMR): Numerical optimization of a packed-bed AMR

Jaka Tusek et al.

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID (2011)

Add to Collection

Article Energy & Fuels

A flexible numerical model to study an active magnetic refrigerator for near room temperature applications

Ciro Aprea et al.

APPLIED ENERGY (2010)

Add to Collection

Article Thermodynamics

Numerical simulation and experimental validation of internal heat exchanger influence on CO2 trans-critical cycle performance

Joaquim Rigola et al.

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID (2010)

Add to Collection

Article Thermodynamics

Performance optimization of transcritical CO2 cycle with parallel compression economization

Jahar Sarkar et al.

INTERNATIONAL JOURNAL OF THERMAL SCIENCES (2010)

Add to Collection

Article Thermodynamics

Detailed numerical modeling of a linear parallel-plate Active Magnetic Regenerator

K. K. Nielsen et al.

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID (2009)

Add to Collection

Article Thermodynamics

Optimization of a transcritical CO2 heat pump cycle for simultaneous cooling and heating applications

J Sarkar et al.

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID (2004)

Add to Collection

© Peeref 2019-2024. All rights reserved.