Results 101 to 110 of about 15,962 (230)

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

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

open access: yes
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

Study of component technologies for fuel cell on-site integrated energy system. Volume 2: Appendices [PDF]

open access: yes
This data base catalogue was compiled in order to facilitate the analysis of various on site integrated energy system with fuel cell power plants. The catalogue is divided into two sections. The first characterizes individual components in terms of their
Lee, W. D., Mathias, S.
core   +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  

Solar cooling at the oenology and viticulture research centre, Buskett, Rabat [PDF]

open access: yes, 2016
This paper describes the design, installation and testing of two solar cooling systems at the Oenology and Viticulture Research Centre, Buskett, Rabat, Malta.
Agius, Joseph   +5 more
core  

Fuel cell on-site integrated energy system parametric analysis of a residential complex [PDF]

open access: yes
A parametric energy-use analysis was performed for a large apartment complex served by a fuel cell on-site integrated energy system (OS/IES). The variables parameterized include operating characteristics for four phosphoric acid fuel cells, eight OS/IES ...
Simons, S. N.
core   +1 more source

The effect of external and operating conditions on a solar Lithium Bromide absorption chiller

open access: yesRevue des Énergies Renouvelables, 2014
The excessive consumption of fossil energies (electrical energy) during summer caused by the technological development involves more and more climate warming, in order to relieve insistency between electric supply and demand, heat driven absorption ...
N. Hatraf, M. Abbas, L. Merabti
doaj  

Flue gas fired absorption chillers

open access: yes, 2010
The development of direct-fired and exhaust-fired absorption chillers, with optimized cycles and multi-stage utilization of the flue gas enthalpy, is a key step towards improved energy efficiency in absorption refrigeration and in CCHP applications. Fundamental thermodynamic relations and boundary conditions are discussed with regard to promising cycle
openaire   +1 more source

Precision stellar radial velocity measurements with FIDEOS at the ESO 1-m telescope of La Silla

open access: yes, 2018
We present results from the commissioning and early science programs of FIDEOS, the new high-resolution echelle spectrograph developed at the Centre of Astro Engineering of Pontificia Universidad Catolica de Chile, and recently installed at the ESO 1m ...
Brahm, R.   +12 more
core   +1 more source

Investigation of a solar thermal driven Refrigerated Warehouse in Tripoli-Libya using TRNSYS [PDF]

open access: yesSolar Energy and Sustainable Development, 2018
This paper, illustrates a design and simulation of a solar powered absorption refrigeration system preserves food above freezing point. The main system is modified from a commercial conventional system located at Tajoura, Libya.
Mukhtar BenAbeid
doaj  

Home - About - Disclaimer - Privacy