Results 11 to 20 of about 142,034 (268)

INCREASING THE EFFICIENCY OF AMBIENT AIR CONDITIONING IN THE COMBINED TYPE SYSTEM

open access: yesАвіаційно-космічна техніка та технологія, 2019
One of the most attractive reserves of enhancing the energetic efficiency of air conditioning systems is to provide the operation of refrigeration compressors in nominal or close to nominal modes by choosing rational design cooling loads (cooling ...
Євген Іванович Трушляков   +4 more
doaj   +1 more source

Effect of Repeated Austenitisation and Cooling on the Microstructure, Hardness and Tensile Behaviour of 0.16 wt % Carbon Steel [PDF]

open access: yesArchives of Metallurgy and Materials, 2018
Repeated austenitisation and furnace cooling of homogenised 0.16 wt. % carbon steels result in ferrite grain sizes between 27 μm and 24 μm. Similarly, repeated austenitisation and normal-air cooling produces ferrite grain sizes between 17 μm and 12 μm ...
A.R. Subhani, D.K. Mondal
doaj   +1 more source

A new method for evaluating and calculating the potential of indirect evaporative free cooling in data center

open access: yesXi'an Gongcheng Daxue xuebao, 2022
In order to obtain the evaluation and calculation method of indirect evaporative free cooling potential in data center, a new method for evaluating the annual indirect evaporative free cooling potential of data center was proposed based on the division ...
CHU Junjie   +3 more
doaj   +1 more source

Cooling Performance Enhancement of Air-Cooled Condensers by Guiding Air Flow [PDF]

open access: yesEnergies, 2019
Adverse wind effects on the thermo-flow performances of air-cooled condensers (ACCs) can be effectively restrained by wind-proof devices, such as air deflectors. Based on a 2 × 300 MW coal-fired power generation unit, two types (plane and arc) of air deflectors were installed beneath the peripheral fans to improve the ACC’s cooling performance.
Xianwei Huang   +4 more
openaire   +2 more sources

SIMULATION OF COOLING AIR PROCESSES BY ABSORPTION LITHIUM-BROMIDE CHILLER WITH USING A SURPLUS REFRIGERATION CAPACITY IN BUSTER AIR COOLER

open access: yesРадіоелектронні і комп'ютерні системи, 2019
The heat-humidity processes of gas turbine unit intake air cooling to the temperature of above 15 °C with the use of a cold water at the temperature of about 10 °C as a coolant and the absorption lithium-bromide chiller utilizing the turbine exhaust gas ...
Андрій Миколайович Радченко   +4 more
doaj   +1 more source

Optimization of Cooling Water System with Precooling Air Cooler

open access: yesChemical Engineering Transactions, 2018
Each year, large quantity of fresh water is consumed by cooling water system. Installing air coolers in cooling water system leads to a reduction on work load of cooling tower and saves on fresh water.
J. Zhang, T.X. Ren, Y. Wang
doaj   +1 more source

Vertical forced air pre-cooling of orange fruits on bin: Effect of fruit size, air direction, and air velocity

open access: yesJournal of the Saudi Society of Agricultural Sciences, 2020
Orange is an important commercial crop, which is being exported from Egypt. Citrus packhouses in Egypt receive, ship excessive quantity to overseas during glut. Since most of the facilities have limited refrigeration capacity to deal with this situation,
A.M. Elansari, Yehia S. Mostafa
doaj   +1 more source

Study on Humid Air Turbine Cooling Technique

open access: yes发电技术, 2021
In order to study the influence of humid air on the cooling performance of turbine blade and build the cooling performance prediction model of humid air turbine, the experimental platform of normal pressure turbine blade cooling was established, and the ...
Hua ZHU, Biao YAN, Yusong LIU, Liang LI
doaj   +1 more source

Microstructure and Mechanical Properties of Friction Stir Processed A356 Cast Al under Air Cooling and Water Cooling

open access: yesHigh Temperature Materials and Processes, 2018
In this work, friction stir processing (FSP) was used to modify the microstructure of A356 cast aluminum alloy under air cooling and water cooling conditions. The microstructure and mechanical properties of air cooling and water cooling FSP specimens and
Ai Xinxin, Yue Yumei
doaj   +1 more source

Enhancing thermal performance in a magnetized square cavity: Novel insights from mixed convection of Ag-MgO nanofluid around a rotating cylinder

open access: yesInternational Journal of Thermofluids
This numerical investigation considers the mixed convection of a magnetically influenced hybrid nanofluid in a two-dimensional square cavity containing a centrally positioned rotating circle cylinder with a radius of R = 0.12.
Falah A. Abood   +4 more
doaj   +1 more source

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