Hybrid Adsorption-Compression Systems for Air Conditioning in Efficient Buildings: Design through Validated Dynamic Models

Palomba, Valeria; Varvagiannis, Efstratios; Karellas, Sotiriοs; Frazzica, Andrea

doi:10.3390/en12061161

Cited by 30 publications

(16 citation statements)

References 76 publications

(71 reference statements)

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“…The application of hybrid systems for covering air conditioning loads is becoming more and more common [36, 41,42]. They can be arranged in a cascade way, as for the systems previously described, or working in series and thus exploiting the main advantages of each of the two units in the hybrid chiller.…”

Section: Series Hybrid Systemmentioning

confidence: 99%

Decarbonising the Shipping Sector: A Critical Analysis on the Application of Waste Heat for Refrigeration in Fishing Vessels

et al. 2019

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The integration of sorption systems on-board fishing vessels has been explored in the last decade, but the limitations in power density and temperature levels achievable have hindered their application. In the present paper, the integration of hybrid sorption–compression systems was evaluated. Different shipping vessels and routes in seas and oceans were considered in the analysis, with engine powers from 190 kW to 500 kW. The feasibility of series and cascade configurations was studied and the possible benefits, in terms of fuel and CO2 savings, were evaluated. The analysis, which also considered the payload due to the extra fuel needed to transport the equipment for refrigeration, showed that up to 75% savings can be obtained, with CO2 emissions avoided up to 20 t/y.

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Section: Series Hybrid Systemmentioning

confidence: 99%

Decarbonising the Shipping Sector: A Critical Analysis on the Application of Waste Heat for Refrigeration in Fishing Vessels

et al. 2019

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“…The ZEOSOL project [33] is based on the hybridization of an adsorption chiller with a conventional vapor compression cycle. The implementation of the vapor compression cycle allows covering the peak loads; hence, the adsorption chiller operates at higher COP, while, in the absence of solar irradiance, the conventional system is able to fully cover the loads of the residential building [34].…”

Section: Introductionmentioning

confidence: 99%

Performance Results of a Solar Adsorption Cooling and Heating Unit

et al. 2020

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The high environmental impact of conventional methods of cooling and heating increased the need for renewable energy deployment for covering thermal loads. Toward that direction, the proposed system aims at offering an efficient solar powered alternative, coupling a zeolite–water adsorption chiller with a conventional vapor compression cycle. The system is designed to operate under intermittent heat supply of low-temperature solar thermal energy (<90 °C) provided by evacuated tube collectors. A prototype was developed and tested in cooling mode operation. The results from the testing of separate components showed that the adsorption chiller was operating efficiently, achieving a maximum coefficient of performance (COP) of 0.65. With respect to the combined performance of the system, evaluated on a typical week of summer in Athens, the maximum reported COP was approximately 0.575, mainly due to the lower driving temperatures with a range of 75 °C. The corresponding mean energy efficiency ratio (EER) obtained was 5.8.

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“…In this context, ZEOSOL project is based on the hybridization of an adsorption chiller with a conventional vapor compression cycle. The implementation of the vapor compression cycle allows for covering of the peak loads allowing the adsorption chiller to operate at higher COP, while on the absence of the solar irradiance the conventional system is able to fully cover the loads of the residential building [23].…”

Section: Introductionmentioning

confidence: 99%

Performance Results of a Solar Adsorption Cooling and Heating Unit

Roumpedakis¹,

Vasta²,

Aristov³

et al. 2020

Preprint

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The high environmental impact of conventional methods of cooling and heating has increased the need for renewable energy deployment for covering thermal loads. Towards that direction, the proposed system aims at offering an efficient solar powered alternative, coupling a zeolite-water adsorption chiller with a conventional vapor compression cycle. The system is designed to operate under intermittent heat supply of low-temperature solar thermal energy (<90 °C) provided by evacuated tube collectors. A prototype was developed and tested in cooling mode operation. The results of separate components testing showed that the adsorption chiller was operating efficiently, achieving a maximum coefficient of performance (COP) of 0.65. With respect to the combined performance of the system, evaluated on a typical week of summer in Athens, the maximum reported COP was approximately 0.575, mainly due to the lower driving temperatures at a range of 75 °C. The corresponding mean energy efficiency ratio (EER) obtained was 5.8.

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Hybrid Adsorption-Compression Systems for Air Conditioning in Efficient Buildings: Design through Validated Dynamic Models

Cited by 30 publications

References 76 publications

Decarbonising the Shipping Sector: A Critical Analysis on the Application of Waste Heat for Refrigeration in Fishing Vessels

Decarbonising the Shipping Sector: A Critical Analysis on the Application of Waste Heat for Refrigeration in Fishing Vessels

Performance Results of a Solar Adsorption Cooling and Heating Unit

Performance Results of a Solar Adsorption Cooling and Heating Unit

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