Mitigation analysis of water consumption for power generation and air conditioning of residential buildings: Case study of Saudi Arabia

Krarti, Moncef; Aldubyan, Mohammad

doi:10.1016/j.apenergy.2021.116767

Cited by 4 publications

(2 citation statements)

References 39 publications

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“…The mass flow balance of the generator and that of Lithium bromide are given by Equations ( 10) and (11).…”

Section: Performance Of Solar Collectormentioning

confidence: 99%

“…Electricity consumption in buildings increased enormously during the years 1990-2019 from 104,252 to 462,614 TJ, which is 43-60% of the total electricity produced [10]. A study shows that 66% of the energy produced in KSA is consumed for building cooling [11]. It is estimated that 63% of the total greenhouse gas emissions are caused by the production of the energy required to drive refrigeration and air-conditioning systems [12].…”

Section: Introductionmentioning

confidence: 99%

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Enhancement of Condenser Performance in Vapor Absorption Refrigeration Systems Operating in Arid Climatic Zones—Selection of Best Option

Kaneesamkandi,

Almujahid,

Salim

et al. 2023

Energies

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Generators and condensers are the two vital equipment items that determine the output of vapor absorption refrigeration systems. Arid weather conditions produce a significant reduction in the performance of the vapor absorption refrigeration cycle due to low condenser heat dissipation despite high generator temperatures. Although numerous studies on condenser cooling methods in vapor compression systems have been reported in the literature, solar-operated vapor absorption systems have not been studied. Limitations in generator temperatures of solar-operated vapor absorption systems necessitate a focused study in this area. This study makes the selection of the best choice for condenser cooling from among four different condenser cooling methods which have an impact on the performance of the vapor absorption refrigeration system for effective cooling using solar energy. A solar vapor absorption refrigeration system working with low-grade heat using a compound parabolic collector is considered in this study. Analysis of a vapor absorption refrigeration system for cooling in arid weather conditions is carried out using different condenser cooling methods with Engineering Equation Solver. Initially, the model used in the study is compared with a similar study reported in the literature. Techniques considered are air, water, evaporative, and hybrid cooling techniques. The performance of the vapor absorption cooling system was analyzed using experimental values of a solar compound parabolic collector obtained from real-time measurements for simulating the model. Results show that water cooling can provide suitable condenser cooling and improve the coefficient of performance of the solar vapor absorption refrigeration system using the solar collector. The water-cooled condenser has 1.9%, 3.3%, and 2.1% higher COP when compared to air-cooled condensers for spring, summer, and autumn seasons respectively, whereas the water-cooled condenser cooling recorded 6%, 14%, and 8% higher COP relative to the evaporative cooling method. Cost comparison showed maximum cost for water-cooled condensers and minimum cost for hybrid-cooled condensers. The effect of each cooling method on the environment is discussed.

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“…The mass flow balance of the generator and that of Lithium bromide are given by Equations ( 10) and (11).…”

Section: Performance Of Solar Collectormentioning

confidence: 99%