Results 31 to 40 of about 16,308 (299)

Performance evaluation and optimal design of supermarket refrigeration systems with supermarket model "SuperSim", Part II: Model applications [PDF]

open access: yes, 2011
This is the post-print version of the final paper published in International Journal of Refrigeration. The published article is available from the link below.
Y.T. Ge, S.A. Tassou, Ge, YT, Tassou, SA
core   +1 more source

Thermodynamic performance analysis of the double effect absorption-vapour compression cascade refrigeration cycle

open access: yesJournal of Thermal Science and Technology, 2018
Absorption refrigeration cycles, the developed as an alternative to vapour-compression refrigeration cycles they are not effective at low temperatures. When the absorption and vapour compression cycles are combined as cascade the consumed compressor work
Canan CIMSIT
doaj   +1 more source

Study on Cold End Temperature Optimization of Supercritical CO2 Cycle

open access: yes发电技术, 2021
Supercritical CO2 cycle has a high cold end temperature. Optimizing the cold end temperature plays an important role in improving the cycle efficiency.
Kaiyun ZHENG
doaj   +1 more source

A novel transcritical CO2 refrigeration cycle with two ejectors [PDF]

open access: yes, 2012
In recent years, CO2 is being revisited as a fully environmentally friendly and safe refrigerant. However, basic CO2 transcritical refrigeration cycle suffers from large expansion loss due to high pressure difference between gas cooler and evaporator ...
Liu, Pei, Cen, Jiwen, Jiang, Fangming
core   +1 more source

Cooling Cycle Optimization for a Vuilleumier Refrigerator [PDF]

open access: yesEntropy, 2021
Vuilleumier refrigerators are a special type of heat-driven cooling machines. Essentially, they operate by using heat from a hot bath to pump heat from a cold bath to an environment at intermediate temperatures. In addition, some external energy in the form of electricity can be used as an auxiliary driving mechanism.
Raphael Paul   +3 more
openaire   +3 more sources

Optimization of motive nozzle position in a modified two-phase ejector expansion household refrigeration cycle using an artificial neural network

open access: yesEnergy Reports, 2022
Two-phase ejectors are highly useful devices because they can recover and use the energy lost in the expansion process of the refrigeration cycle. However, in a small-sized household refrigeration cycle, a modified ejector cycle is required due to the ...
Yongseok Jeon   +2 more
doaj   +1 more source

Technology of Refrigeration and Air-conditioning for Aircraft Environment Control System

open access: yesZhileng xuebao, 2020
An aircraft’s environment control system provides the proper environment for its safe and stable flying. The refrigeration and air-conditioning systems are the core parts of an aircraft.
Sheng Jian   +3 more
doaj  

Life cycle cost analysis of two different refrigeration systems powered by solar energy

open access: yesCase Studies in Thermal Engineering, 2019
This study provides an economic comparison between a vapor compression refrigeration system powered by a photovoltaic array and a vapor absorption refrigeration system powered by a solar evacuated tubes thermal unit.
Saad S. Alrwashdeh, Handri Ammari
doaj   +1 more source

Entropy-statistical analysis of the efficiency of cycles of refrigeration units of household refrigerators

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2023
Objective. The aim of the work is to determine the thermodynamic efficiency of the modernized refrigeration unit of a household refrigerator compared to the basic model using the entropystatistical method.Method. В ходе работы при проведении исследований
Yu. V. Kudrov
doaj   +1 more source

The performance evaluation of CO2 transcritical booster and R290/R744 cascade refrigeration systems for different cities in Turkey

open access: yes, 2017
CO2 as a natural and fully environmentally friendly refrigerant has become more preferable in refrigeration systems in recent years. Since its critical temperature is much lower than that of other refrigerants.
YILMAZ, BARIŞ
core   +2 more sources

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