Results 91 to 100 of about 16,031 (230)

Development of Key Components for 5 kW Ammonia–Water Absorption Chiller with Air-Cooled Absorber and Condenser

Energies
An absorption chiller is an alternative cooling system that operates using heat from renewable energy sources and employs environmentally friendly working fluids, such as ammonia–water or lithium bromide–water.
Desy Agung, Gabriel Garcia Genta, Arnas Lubis, M. Idrus Alhamid, Nasruddin Nasruddin   +4 more
doaj   +1 more source

Solar absorption chiller performance prediction based on the selection of principal component analysis

Case Studies in Thermal Engineering, 2019
In this paper, a method to predict the performance of an absorption chiller using solar thermal collectors as the energy input is analyzed rigorously. Artificial Neural Network (ANN) is developed based on experimental data to predict the performance of ...
Nasruddin, Nyayu Aisyah, M.I. Alhamid, Bidyut B. Saha, S. Sholahudin, Arnas Lubis   +5 more
doaj   +1 more source

Study of Lyndon B. Johnson Space Center utility systems [PDF]

The results of an engineering study of potential energy saving utility system modifications for the NASA Lyndon B. Johnson Space Center are presented. The objective of the study was to define and analyze utility options that would provide facility energy
Huber, W. C., Redding, T. E.
core   +1 more source

SOLAR POWERING OF HIGH EFFICIENCY ABSORPTION CHILLER

, 2004
This is the Final Report for two solar cooling projects under this Cooperative Agreement. The first solar cooling project is a roof-integrated solar cooling and heating system, called the Power Roof{trademark}, which began operation in Raleigh, North Carolina in late July 2002.
openaire   +3 more sources

Increasing electrical power output and fuel efficiency of gas engines in integrated energy system by absorption chiller scavenge air cooling on the base of monitoring data treatment

E3S Web of Conferences, 2018
An advanced scavenge air cooling system for reciprocating gas engines of integrated energy system for combined electricity, heat and refrigeration generation has been developed.
Radchenko Andrii, Radchenko Mykola, Konovalov Andrii, Zubarev Anatolii   +3 more
doaj   +1 more source

Study of component technologies for fuel cell on-site integrated energy systems [PDF]

Heating, ventilation and air conditioning equipment are integrated with three types of fuel cells. System design and computer simulations are developed to utilize the thermal energy discharge of the fuel in the most cost effective manner.
Lee, W. D., Mathias, S.
core   +1 more source

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

Авіаційно-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, Євген Іванович Трушляков, Сергій Анатолійович Кантор, Богдан Сергійович Портной, Анатолій Анатолійович Зубарєв   +4 more
doaj   +1 more source

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

Zhileng 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, Ichihashi Nobuhisa, Itaya Yoshinori   +2 more
doaj  

The Quantum Absorption Refrigerator

, 2011
A quantum absorption refrigerator driven by noise is studied with the purpose of determining the limitations of cooling to absolute zero. The model consists of a working medium coupled simultaneously to hot, cold and noise baths. Explicit expressions for
Kosloff, Ronnie, Levy, Amikam
core   +1 more source

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

Applied 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