Results 1 to 10 of about 132,920 (161)

Adsorption chiller in a combined heating and cooling system: simulation and optimization by neural networks [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2021
Adsorption cooling and desalination technologies have recently received more attention. Adsorption chillers, using eco-friendly refrigerants, provide promising abilities for low-grade waste heat recovery and utilization, especially renewable and waste ...
Jarosław Krzywanski   +9 more
doaj   +1 more source

Calorimetric stand for research of processes in the refrigeration unit

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2022
Objective. The aim of the work is to develop a calorimetric stand that allows simulating the operation of an energy-efficient two-evaporator refrigeration unit of a household refrigerator or freezer.Method. In the course of the work, a calorimetric setup
Yu. V. Kudrov   +3 more
doaj   +1 more source

Adsorption Solar Air Conditioning System for Singapore Climate

open access: yesEnergies, 2022
The design of an adsorption solar air conditioning system is investigated by using a model with an activated carbon–methanol working pair. This system is analysed with the solar insolation levels and ambient temperatures of Singapore. The proposed design
Zacharie Tamainot-Telto   +2 more
doaj   +1 more source

The analysis of cascade refrigeration machine cycles efficiency using carbon dioxide [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2021
The paper analyzes and proves the feasibility of improving the energy performance of low-temperature refrigeration machines operating on R744 using cascade design with R134a, R1234yf and R717 as refrigerants based on data the scientific study of two ...
A. S. Khrekin   +2 more
doaj   +1 more source

Improving Cooling Capacity of Condensation-Free Radiant Cooling for Low-Emissivity Chilled Ceiling via Adaptive Double-Skin Infrared Membranes

open access: yesFrontiers in Thermal Engineering, 2022
Radiant cooling has well been acknowledged as energy efficient and thermal comfortable technology compared to conventional convective cooling. However, the radiant cooling exists two serious problems (viz., insufficient cooling capacity and high ...
Ke Du   +9 more
doaj   +1 more source

The use of liquefied natural gas in the combined power unit of autonomous refrigerated car

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2019
A specific feature of the market for the transport of perishable goods is the length of the routes. As part of the implementation of new technical solutions for isothermal rolling stock, research is being conducted on the development of autonomous power ...
O. A. Voron
doaj   +1 more source

Draft of the MEPS and HEPS for industrial refrigeration compressor in Thailand

open access: yesEnergy Reports, 2020
This study aimed to find the high energy efficiency standard (HEPS) and minimum energy efficiency standard (MEPS) of industrial refrigeration compressors that suitable for Thailand.
Watcharapong Tachajapong   +2 more
doaj   +1 more source

IMPROVEMENT OF SYSTEMS OF TECHNICAL WATER SUPPLY WITH COOLING TOWERS FOR STEAM POWER PLANTS TECHNICAL AND ECONOMIC INDICATORS PERFECTION. Part 1

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2016
In order to reduce the temperature of cooling water and increase the efficiency of use of power resources the main directions of modernization of systems of technical water supply with cooling towers at steam power plants are presented.
Yu. A. Zenovich-Leshkevich-Olpinskiy   +2 more
doaj   +1 more source

Performance Analysis of Hybrid Desiccant Cooling System with Enhanced Dehumidification Capability Using TRNSYS

open access: yesApplied Sciences, 2021
In a field test of a hybrid desiccant cooling system (HDCS) linked to a gas engine cogeneration system (the latter system is hereafter referred to as the combined heat and power (CHP) system), in the cooling operation mode, the exhaust heat remained and ...
Ji Hyeok Kim, Joon Ahn
doaj   +1 more source

A mathematical modelling of frost growth dynamics on a surface of fin-and-tube air cooler [PDF]

open access: yesMATEC Web of Conferences, 2020
A mathematical model was developed to predict the performance characteristics of fin-and-tube air coolers with plane fins, taking into account the temperature and humidity conditions, non-uniform thickness of the frost layer along the heat exchanger core,
Marinyuk Boris T.   +2 more
doaj   +1 more source

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