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Combined generator for an NH3–H2O absorption chiller
International Journal of Heat and Mass Transfer, 2022This study concerns the development of a combined generator for an NH 3 –H 2 O absorption chiller, integrating vapor generation and purification in a single component. The combined generator involves adiabatic and heated falling-film over flat plates. The lower part of the exchanger can be flooded and includes pool-boiling mechanisms.
Mathilde Wirtz +3 more
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Multi-effect absorption chillers
International Journal of Refrigeration, 1993Abstract Multi-effect absorption heat pump cycles are promising to yield cooling performances which far exceed the performance of single-stage cycles. In this paper, several types of cycles are analysed. For this purpose, the respective multi-effect cycle is decomposed into elementary building blocks of single-stage absorption cycles with known ...
F Ziegler, R Kahn, F Summerer, G Alefeld
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Performance of a Residential-Sized GAX Absorption Chiller
Journal of Energy Resources Technology, 1998This research effort involved experimentally testing an advanced-cycle, ammonia-water absorption chiller with a cooling capacity of 17.6 kW (5 refrigeration tons (RT)). The system was a generator-absorber heat exchange (GAX) cycle and was sized for residential and light commercial use, where very little absorption equipment is currently used.
Douglas K. Priedeman +4 more
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Absorption Chillers and Heat Pumps
2016Introduction Heat Pumps Heat-Driven Heat Pumps Description of Current Absorption Products Outlook for Absorption Technology Absorption Cycle Fundamentals Carnot Cycles Absorption Heat Pump, Type I Absorption Heat Transformer, Type II Absorption Heat Pump as Combination of Rankine Cycles Reversible Analysis with Variable Temperatures Irreversibilities ...
Keith E. Herold +2 more
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Feasibility Study of the Absorption Chiller Integration
Applied Mechanics and Materials, 2015Paper presents feasibility study of the absorption chiller integration. In the search model system of air conditioning uses absorption chiller instead of the standard vapor compression chiller due to the fact of insufficient electrical supply of the building. Calculated payback periods show limits of the effective applying of the absorption chiller.
Sofia Kolbaya +2 more
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Absorption chillers applied to CHP systems
Building Services Engineering Research and Technology, 1995The parameters that should be considered at the design stage of a combined heat and power (CHP) project have been determined for situations when absorption refrigeration is to be used. Single and double stage chillers are considered together with system features such as hot water, steam or heat recovery driven, in terms of the hot temperature heat ...
R. Tozer, R. James
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Simulation and adaptation of a membrane absorber to an absorption chiller
, 2013 Consulta en la Biblioteca ETSI Industriales (8127)
Martí Calatayud, Manuel César
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Simulation of an ammonia–water absorption chiller
Renewable Energy, 2013Abstract An increased interest in absorption chillers has been observed [1] because these systems can utilize solar, geothermal and biomass energy sources, but also because they are quiet, vibration-free, require little maintenance and are ecological [2] .
Brice Le Lostec +2 more
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Theoretical and experimental analysis of an absorption chiller
International Journal of Refrigeration, 1994Abstract A theoretical model for the performance of an absorption chiller has been derived using thermodynamic laws. From the model, a non-dimensional temperature ratio, T ∗ , is proposed. It relates to the water temperatures that are supplied to the condenser and the evaporator of an absorption chiller.
Ng, K.C. +3 more
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