Reversible adsorption heat pump: a thermodynamic model

Cacciola, G.; Restuccia, G.

doi:10.1016/0140-7007(94)00005-i

Cited by 127 publications

(71 citation statements)

References 7 publications

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“…EER coefficient was determined as the ratio of the amount of heat flux in the refrigerant circuit to the heat flux in the heat source during the one hour (Eq. (1)) (Grzebielec et al 2015a;Xu 2011;Cacciola, Restuccia 1995).…”

Section: Fig 1 Adsorption Refrigeration Unit Connected With Water Cmentioning

confidence: 99%

Influence of Outside Temperature on the Operation of the Adsorption Chiller

Grzebielec

Laskowski

Ruciński

2017

Proccedings of 10th International Conference "Environmental Engineering"

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Abstract. Adsorption refrigeration systems are characterized by a lower coefficient of performance than the compressor type device or even absorption, but can utilize waste heat at lower temperature. The aim of the study was to determine which external parameter has the greatest impact on the efficiency of the adsorption device. As a result of experimental studies there was found that this is not the temperature of the feed but particularly the temperature of external air. For this reason, it is recommended that the adsorption device should cooperate with evaporative spray coolers, instead of with popular dry coolers. This solution will increase annual efficiency of adsorption unit approx. by 25% and significantly reduce the costs of cold generation.

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Section: Fig 1 Adsorption Refrigeration Unit Connected With Water Cmentioning

confidence: 99%

Influence of Outside Temperature on the Operation of the Adsorption Chiller

Grzebielec

Laskowski

Ruciński

2017

Proccedings of 10th International Conference "Environmental Engineering"

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“…adsorption at low temperature and pressure of evaporation (line DA). More details on the thermodynamic cycle of adsorptive machines can be found elsewhere [16]. Figure 3 shows the control volume considered for the model formulation.…”

Section: Operating Principlementioning

confidence: 99%

An adsorptive solar ice-maker dynamic simulation for north Mediterranean climate

Vasta

Maggio

Santori

et al. 2008

Energy Conversion and Management

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“…The latent heat of evaporation is represented by fg h . The amount of heat associated with the heat source HS Q contains a number of ingredients (Cacciola, Restuccia 1995).…”

Section: Fig 2 Adsorber Beds States During Operationmentioning

confidence: 99%

“…Figure 1 shows adsorption refrigerating appliance composed of two adsorbers. A set of valves allows that in both cases the refrigerant flows through a condenser, expansion valve and evaporator (Cacciola, Restuccia 1995). Adsorption refrigeration units are characterized by a lower energy efficiency ratio EER (energy efficiency ratio) than absorption units, but they have one important advantage -they can operate at lower driven temperature.…”

Section: Introductionmentioning

confidence: 99%

Energy Recovery Methods in Adsorption Refrigeration Units

Grzebielec

Szelągowski

Ruciński

2017

Proccedings of 10th International Conference "Environmental Engineering"

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Abstract. Adsorption refrigeration systems, as opposed to absorption type operate in a cyclic manner. The result is that at the beginning of each process must be fed into the adsorber state in which they will adsorb or desorb a refrigerant. In the case of two adsorbers at the start of a cycle, the one of the adsorber must be refrigerated while the second has to be heated. These processes are causing unnecessary energy loss. The aim of the work is to show how these processes can be connected and the heat received from one adsorber is transported to another adsorber. As part of the study, the heat and mass recovery processes will be considered. It turns out that in the thermal wave type systems, it is possible to recover more than 25% of the energy lost to bring the adsorber to the states in which they will operate efficiently to desorb and adsorb refrigerant. That is, it is possible to improve the efficiency of the adsorption refrigeration unit using the proposed improvements.

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Reversible adsorption heat pump: a thermodynamic model

Cited by 127 publications

References 7 publications

Influence of Outside Temperature on the Operation of the Adsorption Chiller

Influence of Outside Temperature on the Operation of the Adsorption Chiller

An adsorptive solar ice-maker dynamic simulation for north Mediterranean climate

Energy Recovery Methods in Adsorption Refrigeration Units

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