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 ?
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.
Table 1 State and substance at each point on the simple effect absorption cycle applied to the model shown in Figure 1 Point State Substance 1 Saturated liquid solution Weak concentration LiBr/ [H.
For the studied material systems, percentage weight gain after absorption cycle showed no change as a function of clay loading percentage.
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.
The most basic components of a vapour absorption cycle are the evaporator, absorber, pump(s), generator (or desorber), a condenser and throttle valves (4-5).
They use "an ammonia-water absorption cycle to provide heating and, if it's a reversible heat pump, cooling" explains Christina Kielich, spokesperson for the U.
The basic absorption cycle has one refrigerant and one absorbent, which are separated and recombined in different stages of the cycle to produce chilled water.
2) Bromeliads, many orchids, and easy-to-care-for succulents such as jade plants intensify their oxygen production/carbon dioxide absorption cycle at night.
The liquid sorption cycle refers to the absorption cycle, and the solid sorption cycle refers the adsorption cycle.
Taking these observations in conjunction with changes in the respective dynamic mechanical spectra obtained on the dried samples after the first absorption cycle, shown in Fig.