Results 101 to 110 of about 3,587 (228)

METHOD OF DETERMINATION OF THERMAL LOAD AIR CONDITIONING SYSTEMS BY MAXIMUM COLD PERFORMANCE RATE (on the example of air conditioning for energy purposes)

open access: yesАвіаційно-космічна техніка та технологія, 2018
It is justified the necessity of taking into consideration changes in thermal loads on the air conditioning system (heat and moisture treatment of air by cooling it with decreasing temperature and moisture content) in accordance with the current climatic
Микола Іванович Радченко   +4 more
doaj   +1 more source

Technical and Economic Analysis of an Absorption Chiller

open access: yesThe Eurasia Proceedings of Science, Technology, Engineering and Mathematics
The research conducted includes a technical and economic analysis of an absorption chiller used for cooling a hotel in the city of Plovdiv - Bulgaria. The main objectives of the analysis are: to establish whether the project is profitable or not; to provide an opportunity to compare different project options; to provide information to a bank or other ...
Slav Valchev   +2 more
openaire   +1 more source

Failure Diagnosis System for Absorption Chiller/Heater.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1995
Recently, the absorption chiller/heater is attracting interest because it delivers airconditioning without using fluorocarbons. Practically, it requires periodical or non-periodical maintenance. It is difficult to detect failures except in summertime with large refrigerant load and, moreover, human expertise is needed for discrimination of their origin.
Ozawa, Yoshio   +6 more
openaire   +2 more sources

Experimental Investigations On Falling-Film Absorbers With Horizontal Tubes – A Review

open access: yes, 2012
It is necessary to improve the energy efficiency of all technical processes due to the uncertainties associated with climate change. One possibility to achieve higher energy efficiency is to utilize waste heat which occurs in many different applications.
Luke, Andrea, Tomforde, Cord
core  

Performance of Steam Absorption Rate and Refrigeration Efficiency of LiBr Aqueous Solution added with Active Carbon Particles

open access: yesZhileng xuebao, 2012
To enhance the steam absorption rate and refrigeration efficiency of a absorption chiller, the active carbon/LiBr suspension was made up of a little active carbon particles and LiBr aqueous solution based on higher absorption performance of active carbon.
Cai Jie   +2 more
doaj  

Characterization of Ammonia–Water Absorption Chiller and Application

open access: yesInternational Journal of Air-Conditioning and Refrigeration, 2018
Ammonia-absorption refrigeration units (AARUS) can supply subfreezing refrigeration for many industrial applications. Such units are usually driven by waste heat or renewable energy at relatively low temperatures. The performance of the chiller is highly dependent on the temperatures of the driving heat, the chilling load, and the cooling water.
Gopalakrishnan Anand   +2 more
openaire   +1 more source

CO2 Transcritical Refrigeration Cycle with Dedicated Subcooling: Mechanical Compression vs. Absorption Chiller

open access: yesApplied Sciences, 2019
The objective of this paper is the comparison of two dedicated subcooling methods, after the gas cooler, in a CO2 transcritical refrigeration system. The use of vapor compression refrigeration with R134a for subcooling is the first method, and the second
Evangelos Bellos, Christos Tzivanidis
doaj   +1 more source

THE ORETICAL ANALYSIS ON THE PERFORMANCE OF BRANCHED GAX CHILLER CYCLE

open access: yesIraqi Journal for Mechanical and Materials Engineering, 2019
In this study, a branched GAX absorption cycle operating with NH3-H2O pair has been investigated to assess its performance under steady state conditions. The cycle modeling is implemented using Engineering Equation Solver (EES) software.
Qusay R Al-Amir, Nagham Y Khudair
doaj  

Análise exergoeconômica de uma planta de cogeração baseada em microturbina a gás natural e refrigeração por absorção pela teoria do custo exergético [PDF]

open access: yes, 2005
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia MecânicaSistemas de cogeração apresentam alta eficiência energética e são projetados para atender demandas elétricas e térmicas ...
Rücker, Claudio Pinto Rebello
core  

PART LOAD PERFORMANCE ANALYSIS OF ELECTRIC CHILLER AND STEAM ABSORPTION CHILLER AT DISTRICT COOLING PLANT

open access: yes, 2017
Universiti Teknologi PETRONAS (UTP) uses district cooling (DC) system for air-conditioning purpose. The UTP GDC plant produces chilled water. Chilled water is produced by two different types of chillers namely the Electric Chiller (EC) and Steam ...
ZULAZNI, MUHAMMAD ASYRAF
core  

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