A comprehensive simulation tool for adsorption-based solar-cooled buildings – Control strategy based on variable cycle duration

Papakokkinos, Giorgos; González, Jesús Castro; Capdevila, Roser; Damle, Rashmin

doi:10.1016/j.enbuild.2020.110591

Cited by 11 publications

(5 citation statements)

References 38 publications

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“…Simultaneously, bed ( 2) is connected to the condenser through valve V(4) and disconnected from the evaporator by closing valve V(2). Hot water flows through bed (2), where the refrigerant is regenerated and flows to the condenser where condensation occurs. The condensed refrigerant runs to the evaporator through a throttling valve.…”

Section: Description Of the Proposed Systemmentioning

confidence: 99%

“…Hot water flows to bed (1), where its pressure increases from the pressure of the evaporator to that of the condenser, in a process named the pre-heating process. Simultaneously, cooling water flows through bed (2), where its pressure drops from the condenser pressure to the evaporator pressure, in a process named the pre-cooling process.…”

Section: Description Of the Proposed Systemmentioning

confidence: 99%

“…Global warming is also affecting regions worldwide, with a resultant increase in the mean temperatures all over the planet [1]. Also, population growth and rising living standards are driving an additional need for cooling and air conditioning systems, which are becoming increasingly common [2], particularly compression cooling systems, due to their notable efficiency and comparatively affordable cost. However, these systems consume a significant portion of worldwide electricity, primarily generated by burning fossil fuels [3].…”

Section: Introductionmentioning

confidence: 99%

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Solar-Powered Adsorption-Based Multi-Generation System Working under the Climate Conditions of GCC Countries: Theoretical Investigation

El-Sharkawy,

Hassan,

Abd-Elhady

et al. 2023

Sustainability

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In this study, transient modelling for a solar-powered adsorption-based multi-generation system working under the climatic conditions of the Gulf Cooperation Council (GCC) countries is conducted. Three cities are selected for this study: Sharjah in the United Arab Emirates, Riyadh in Saudi Arabia, and Kuwait City in Kuwait. The system comprises (i) evacuated tube solar collectors (ETCs), (ii) photovoltaic-thermal (PVT) solar collectors, and (iii) a single-stage double-bed silica gel/water-based adsorption chiller for cooling purposes. A MATLAB code is developed and implemented to theoretically investigate the performance of the proposed system. The main findings of this study indicate that among the selected cities, based on the proposed systems and the operating conditions, Riyadh has the highest cooling capacity of 10.4 kW, followed by Kuwait City, then Sharjah. As for the coefficient of performance (COP), Kuwait City demonstrates the highest value of 0.47. The electricity generated by the proposed system in Riyadh, Kuwait City, and Sharjah is 31.65, 31.3, and 30.24 kWh/day, respectively. Furthermore, the theoretical results show that at 18:00, the overall efficiency of the proposed system reaches about 0.64 because of the inclusion of a storage tank and its feeding for the adsorption chiller. This study analyzes the feasibility of using a combination of ETCs and PVT collectors to drive the adsorption chiller system and produce electricity in challenging weather conditions.

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Section: Description Of the Proposed Systemmentioning

confidence: 99%

Section: Description Of the Proposed Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Solar-Powered Adsorption-Based Multi-Generation System Working under the Climate Conditions of GCC Countries: Theoretical Investigation

El-Sharkawy,

Hassan,

Abd-Elhady

et al. 2023

Sustainability

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“…Papakokkinos et al [106] conducted a study of the SG 127B/water working pair, where the desorption energy is supplied by a solar collector system. In this paper, the results of dynamic simulations of the entire adsorption system were analysed.…”

Section: Studies On Different Adsorption Working Pairsmentioning

confidence: 99%

Adsorbents, Working Pairs and Coated Beds for Natural Refrigerants in Adsorption Chillers—State of the Art

et al. 2021

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Adsorption refrigeration systems are promising, sustainable solutions for many cooling applications. The operating range and the performance of an adsorption cooling cycle are strongly dependent on the properties of adsorbents, adsorbates, and bed coatings. Therefore, further research and analysis may lead to improved performance of adsorption coolers. In this paper, studies on working pairs using natural refrigerants and the properties of adsorbent coatings were reviewed. The selected working pairs were then thermodynamically characterised and ranked in terms of refrigerant evaporation temperature values. This was found to be a key parameter affecting the applicability of a given adsorbent/adsorbate pair and the value of SCP (Specific Cooling Power), COP (Coefficient of Performance) parameters, which are now commonly used comparison criteria of adsorption chillers. In the analysis of the coating studies, the focus was on the effect of individual parameters on the performance of the cooling system and the effect of using coated beds compared to packed beds. It was found that a fundamental problem in comparing the performance of different cooling systems is the use of different operating conditions during the tests. Therefore, the analysis compares the performance of the systems along with the most important thermodynamic cycle parameters for the latest studies.

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“…Despite the potential environmental benefits of ACSs, this technology remains underdeveloped as a result of its low performance. The desired progress will arise collectively from researches that approach ACSs from various perspectives, such as the properties of the adsorption pair materials [4], the configuration and operation of the ACS [5], its integration within a wider thermal system [6], and the design of the adsorption reactor [7] -the core component of the ACS. The presented study pertains to the latter, in particular, to the design of the hexagonal honeycomb adsorption packed bed reactor -within the wider context of solar cooling and waste heat-driven cooling.…”

Section: Introductionmentioning

confidence: 99%

Computational investigation of the hexagonal honeycomb adsorption reactor for cooling applications

Papakokkinos

González

Oliet

et al. 2022

Applied Thermal Engineering

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A comprehensive simulation tool for adsorption-based solar-cooled buildings – Control strategy based on variable cycle duration

Cited by 11 publications

References 38 publications

Solar-Powered Adsorption-Based Multi-Generation System Working under the Climate Conditions of GCC Countries: Theoretical Investigation

Solar-Powered Adsorption-Based Multi-Generation System Working under the Climate Conditions of GCC Countries: Theoretical Investigation

Adsorbents, Working Pairs and Coated Beds for Natural Refrigerants in Adsorption Chillers—State of the Art

Computational investigation of the hexagonal honeycomb adsorption reactor for cooling applications

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