Results 51 to 60 of about 78,780 (311)

Comparison and Prospect of Magnetic Heat Pump Cycle and Magnetic Refrigeration Cycle

open access: yesZhileng xuebao
As one of the main application directions of magnetocaloric effect near room temperature, room temperature magnetic heat pump has the characteristics of high efficiency, environmental protection, low noise and low vibration.
许戈耀   +5 more
doaj   +2 more sources

Experimental Investigation of a New High Temperature Heat Pump Using Water as Refrigerant for Industrial Heat Recovery

open access: yes, 2012
Currently, improving energy efficiency becomes a main challenge for all industrial energy systems. This challenge involves an improved recovery of wasted heat generated by several industrial processes.
Peureux, Jean-Louis   +3 more
core  

Análise do efeito do superaquecimento sobre o desempenho de compressores alternativos aplicados a bomba de calor [PDF]

open access: yes, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Mecânica.Em sistemas de refrigeração convencionais, o superaquecimento do fluido refrigerante no interior do compressor é um dos ...
Fonseca Júnior, José Nilton
core  

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

Research Progress and Prospect of Air Source Heat Pump in Low Temperature Environment

open access: yesZhileng xuebao, 2013
Air source heat pump, a high efficiency, energy conservation and environmental protection device, is in prospect of wide application and market value.
Wang Fenghao   +3 more
doaj  

Experimental Results of a Newly Developed Very High Temperature Industrial Heat Pump (140°C) Equipped With Scroll Compressors and Working With a New Blend Refrigerant

open access: yes, 2012
During last decades more and more attention has been paid on CO2 emissions. One of the solutions for decreasing CO2 emissions concerns the substitution of fossil fuels industrial boilers by the use of very high temperature electrical heat pumps. Moreover,
Bourig, Ali, Bobelin, Damien
core  

Influence of Surface Finish on the Tribological Performance of AlTiBN Coatings Deposited on Forming Tools

open access: yesAdvanced Engineering Materials, EarlyView.
Aluminum and nitride coatings are used in industry because they are hard, resist wear, and protect against oxidation. Adding boron can improve friction behavior and other properties. This study tests coatings on surfaces with different finishes. Results show smoother surfaces perform better, while rough ones wear faster, although coatings can reduce ...
Adrián Claver   +9 more
wiley   +1 more source

Experiment on Radiant Floor Heating System of Air-source Heat Pump in Hotan Area

open access: yesZhileng xuebao, 2023
Heat pump heating can solve the environmental pollution problems caused by coal heating. This study used an air source heat pump system applied in Hotan area as the research object and tested the in-situ performance of the air source heat pump heating ...
Sun Zhili   +6 more
doaj  

Characteristics of R134a/R410A Cascade Heat Pump and Optimization

open access: yes, 2012
Single stage air source heat pump has been widely used around the world. However, it has some drawback, for example, deteriorated heating capacity and COP in cold ambient temperature.
Kim, Min Soo   +2 more
core  

Active Corrosion Protection of Sintered AA7075 Aluminum Alloy via Mn Powder Addition

open access: yesAdvanced Engineering Materials, EarlyView.
AA7075 containing Mn‐rich particles is fabricated via spark plasma sintering using AA7075 and Mn powders. Corrosion resistance is evaluated through dip‐and‐dry tests using 0.1 M NaCl (pH 6.0), and mass loss decreases with increasing Mn addition. Mn‐rich particles function as a source of Mn ions, and formation of Mn‐accumulation films on Cu‐containing ...
Ko Ebina, Masashi Nishimoto, Izumi Muto
wiley   +1 more source

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