absorption cycle

absorption cycle

[əb′sȯrp·shən ‚sī·kəl]
(mechanical engineering)
In refrigeration, the process whereby a circulating refrigerant, for example, ammonia, is evaporated by heat from an aqueous solution at elevated pressure and subsequently reabsorbed at low pressure, displacing the need for a compressor.
References in periodicals archive ?
Through selection of the single-effect ammonia-water vapor absorption cycle in a heating-only mode and a focus on easily manufactured components, the team sought to demonstrate an economical GAHP, at a projected equipment price of less than $5,000, 30-50% that of GAHPs currently available.
In fact, this kind of absorption chiller, a Rotartica chiller (EcoFriend, 2016), is a special type of absorption refrigeration equipment because the absorption cycle is carried out in a hermetically welded spheroid container of approximately 500 mm in diameter by 500 mm long, rotated at 400 rpm about a horizontal axis, as seen in Evola, Le Pierres, Boudehenn, and Papillon (2013) in which a dynamic analysis was carried out.
Combined Ejector Single-Effect Absorption Cycle Model.
[2.] Cao T, Lee H., Hwang Y, "Performance investigation of engine waste heat powered absorption cycle cooling system for shipboard applications," Applied Thermal Engineering, 90:820-830, 2015.
The overall performance of the absorption cycle in relations of refrigerating effect per unit of energy input generally poor, however, waste heat such as that excluded from a power can be used to realize better overall energy utilization.
The ideal absorption cycle is constituted by two ideal Carnot cycles, one driving and the other a cooling cycle (Nesselmann 1932; Stierlin 1964; Eber 1968).
However, from the earliest domestic refrigerators, developed around the turn of the 20th century, until the mid 1970s, the absorption cycle was commonly used.
For the studied material systems, percentage weight gain after absorption cycle showed no change as a function of clay loading percentage.
The Influence of Sodium Doping on C[O.sub.2] Absorption Cycle Performance.
[23, 24] use a solar powered absorption cycle under Abu Dhabi's weather conditions.
The new freeze-drier uses modern industrial automation processes and a cold generation system through an absorption cycle, which allows more technical reliability and operation at lower temperatures during freeze-drying.
Enhanced Absorption Cycle Computer Model, Oak Technion Israel Institute of Technology & Oak Ridge National Laboratory, ORNL/Sub/91-SH641/1