Results 171 to 180 of about 910,513 (210)
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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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A characteristic mass fraction difference in absorption chillers
International Journal of Refrigeration, 2019Abstract Absorption chillers are considered as heat transfer devices and hence most commonly modeled as heat transfer processes. The absorption of the refrigerant vapor though inherently involves mass transfer into the absorbent, which in comparison to the heat transfer usually is a slow transport process.
T. Meyer, F. Ziegler
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Enhancement of APCI cycle efficiency with absorption chillers
Energy, 2010Abstract Liquefied natural gas (LNG) plants consume a great amount of energy. In order to enhance the energy efficiency of the LNG plant, the potential energy efficiency enhancements of various options of utilizing the waste heat powered absorption chillers in the propane pre-cooled mixed refrigerant (APCI) liquefaction cycle were investigated in ...
Amir Mortazavi +4 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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A Retrofit Integration of an Absorption Chiller With a Microturbine Array
Volume 4: Turbo Expo 2005, 2005The overall system efficiency of a microturbine generator system, and hence the economic viability, are greatly enhanced through co-generation. The utilization of the exhaust energy for heating needs is well understood and has been extensively implemented.
Toussaint Williamson +2 more
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A review: Renewable energy with absorption chillers in Thailand
Renewable and Sustainable Energy Reviews, 2010The aim of this paper is to review the energy situation, renewable energy potential and absorption chiller system in Thailand. The renewable energy which will be used in low temperature applications, under the consideration of low operating cost, high availability and non-polluted emission such as solar energy was discussed. Solar energy can be used as
Tawatchai Jaruwongwittaya +1 more
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