Results 171 to 180 of about 1,143,677 (213)
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Experimental report on the reliability of ammonia-water absorption chillers
International Journal of Refrigeration, 1996Abstract The analysis of a large amount of data on the failures of absorption refrigeration machines of the ammonia-water type was carried out. The data derive from the records of a 10-year maintenance contract under which every machine was installed.
. M. Lazzarin +2 more
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A novel lithium bromide absorption chiller with enhanced absorption pressure
Applied Thermal Engineering, 2012Abstract Although lithium bromide absorption chillers (LBACs) are widely used to provide thermal comfort by utilizing waste heat, they suffer from low efficiency. This paper presents an experimental investigation on a novel reformed LBAC based on the absorption principle of the lithium–bromide/water solution in the sub-steady equilibrium state that ...
Guozhen Xie +4 more
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Solar Cooling with Absorption Chillers: Control Strategies and Transient Chiller Perfomance
2006This thesis reports on improvements of the state of the art in controlling solar cooling systems with absorption chillers. In this context, two main approaches are being presented. In the first approach, control strategies for the system circuits are being presented and discussed.
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Experimental study of an ammonia-water absorption chiller
International Journal of Refrigeration, 2012Abstract This paper presents the performance of an ammonia-water absorption chiller. This single-stage 10 kW absorption chiller is cooled with a water-ethylene glycol solution. The required heat source is hot water between 75 °C and 85 °C. Different operating conditions can be imposed by varying temperatures and flow rates of secondary circuits and ...
Brice Le Lostec +2 more
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Thermoeconomic life-cycle costs of absorption chillers
Building Services Engineering Research and Technology, 1997Thermoeconomics, which is a blend of thermodynamic and economic analysis, can be used to determine life-cycle equipment costs. This paper deals with the application of thermoeconomic theory to absorption chillers. Both initial and operating costs are considered. The best chiller selections for specific operating conditions are identified.
R. Tozer, R. James
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Development of a solar-driven diffusion absorption chiller
Solar Energy, 2019Abstract Nowadays, the diffusion absorption process is well known and mainly used as refrigerators in hotels and caravans. The huge advantage of this process is the noiseless and wear-free operation due to the absence of moving parts. There are few studies where the diffusion absorption process is combined with solar cooling.
Fabian Schmid +2 more
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Performance improvement of a butane/octane absorption chiller
Energy, 2011To improve the coefficient of performance (COP) of an absorption chiller working with the n-butane as refrigerant and the n-octane as absorbent, a thermodynamic analysis based on the first and the second law of thermodynamic is required. A simulation model is established to calculate the different thermodynamic properties of each point of the cycle ...
Nihel Chekir, Ahmed Bellagi
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