Swimming pools as heat sinks for air conditioners: Model design and experimental validation for natural thermal behavior of the pool

Woolley, Jonathan; Harrington, Curtis; Modera, Mark

doi:10.1016/j.buildenv.2010.07.014

Cited by 44 publications

(16 citation statements)

References 10 publications

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“…This work follows the same line of Woolley et al., 45 which studies the use of swimming pools as sinks for the reject heat in the condensation; however, public buildings usually do not have this type of facility. For this goal, air condensation in the chiller will be substituted by water condensation without a cooling tower.…”

Section: Introductionmentioning

confidence: 94%

“…In order to increase the efficiency of the air conditioning system, several concepts have been studied, such as free cooling 17,18 and free cooling coupled with heat storage systems; 19 night ventilation; 20 using evaporative cooling; 21–23 coupling the buildings with earth heat exchangers; 22,24,25 employing chillers with: two compressors, 26 variable-speed compressor, 27 electronic expansion valve, 27,28 variable refrigerant flow systems, 24,29,30 or with new refrigerants; 31 using absorption or adsorption chillers, either driven by solar energy 32–34 or waste heat; 35,36 replacement of dry cooling towers by evaporative cooling towers; 37–39 improvement of control systems; 40–44 improvement of chiller condensation using swimming pools as heat links, 45 or even using aquifers as thermal storage. 46 In a recent review work, 47 different aspects that contribute to the energy efficiency on air conditioning systems were analyzed: novel cooling devices, innovative system designs and integration, and operational management and control.…”

Section: Introductionmentioning

confidence: 99%

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Improving the efficiency of an air conditioning system using a fire water tank as thermal accumulator

Estébanez

Ortiz

Pérez

et al. 2014

Building Services Engineering Research and Technology

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This paper studies the substitution of air condensation by water condensation in the chiller of a university building. This building has a surface of about 30,000 m 2 , is located in a city of the Spanish north coast, and refrigeration is needed for six months a year. In this paper, the novelty lies in the cooling system of the condensation water, since the typical cooling tower is not going to be considered; instead, the domestic cold water consumed in the building would be used to cool the chiller condensing water. As the domestic water consumption in the building is neither constant nor coincident with the cooling requirements of the chiller, the use of the fire water tank as heat storage was proposed. Thus, the chiller is cooled by the water contained in the fire tank and this fire water is then cooled by the domestic water. With this solution, the reduction in the annual energy consumption of the chiller is around 18.6%. The requirements to implement this solution in buildings are: cool water for air conditioning produced in a centralized way, a relatively high building domestic water demand and a building fire water tank. Practical application:The solution proposed in this paper can contribute to primary energy savings by improving the energy efficiency of HVAC systems. It can be adopted in all buildings that require refrigeration, have a significant consumption of domestic water, and have a water storage tank for fire or other uses. The article includes the preliminary design of a water-water heat exchanger as a possible solution for cooling the chiller, but alternative solutions could be adopted. Finally, a cost-benefit analysis has been performed, showing that the proposed solution is feasible.

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Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Improving the efficiency of an air conditioning system using a fire water tank as thermal accumulator

Estébanez

Ortiz

Pérez

et al. 2014

Building Services Engineering Research and Technology

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“…It is proposed to describe the water variation of the pool with the total heat flux of the pool, which is composed of heat obtained from the sun and heat loss from evaporation, convection, conduction, radiation, and refilling water. The mathematical formula of this model has been presented in the studies of Ruiz and Martínez (2010) and Woolley et al (2011), and it is expressed as:…”

Section: Heat Transfer Model Of the Swimming Poolmentioning

confidence: 99%

Swimming pool heating technology: A state-of-the-art review

Nord

Huang

et al. 2020

Build. Simul.

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A large amount of heat is needed to maintain the thermal comfort of both indoor and outdoor swimming pools in cold seasons. This motivates the development of various heating technologies aiming to reduce energy use, as well as operating and investment costs. Although their development can be traced back to the 1960s, a comprehensive review of these technologies is lacking. Therefore, this paper presents a comprehensive review of the development of heating technologies for swimming pools. This review firstly introduces available heat transfer models that can be used to calculate or predict heat loss and heat gain for swimming pools. Then, different passive and active technologies are summarized. The active heating technologies used for indoor swimming pools include solar collector, heat pump, waste heat recovery, geothermal energy, and congregation technologies. The active heating technologies used for outdoor swimming pools include solar collector, heat pump, PCM storage, geothermal energy, biomass heater, and waste heat recovery technologies. A discussion is presented on the practical and possible heating techniques for swimming pool applications. Finally, through the reviewed literature, future research opportunities are identified, to guide researchers to investigate swimming pool heating systems with suitable and relevant technologies.

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“…To calculate evaporation losses, the antoine equation deriving from the clausius-clapeyron relation was used. It was observed that for a constant humidity, evaporation losses increase together with the increase in ambient temperature [44].…”

Section: Modelling 321 Indoor Poolsmentioning

confidence: 99%

Swimming Pool heating systems: A review of applied models

Jiménez¹,

Carrillo²,

Alvarado³

2015

TECCIENCIA

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How to cite: Jiménez, S.; Carrillo, V.; Alvarado, M., Swimming pool heating systems: a review of applied models, TECCIENCIA, Vol. 10 No. 19., 17-26, 2015 Bogotá, Colombia, ma.al.al.be@hotmail.com Received: 24-06-2015 Accepted: 23-07-2015, Available online: 03-08-2015 AbstractSwimming pool heating that is both efficient and ecological has become increasingly important to the development of new technologies and initiatives to protect the environment. This article, therefore, outlines previous research on the subject, acquired primarily from secondary sources and filtered based on criteria such as relevance, credibility, consistency, and applicability. Our goal is to provide an overview of the current literature and point out less-developed areas where research could be expanded. The results of the various studies suggest a widespread disagreement over calculating evaporation and make clear the need to generate integrative models that standardize this calculation.Keywords: heating, swimming pools, modeling, verification. ResumenLa climatización de piscinas de manera eficiente y ecológica aumenta en relevancia con el pasar del tiempo, debido al desarrollo de nuevas tecnologías e iniciativas de protección al medio ambiente. Por estas razones, este artículo describe investigaciones desarrolladas sobre el tema, adquiridas principalmente de fuentes secundarias y filtradas sobre criterios de selección sobre su relevancia, credibilidad, coherencia y aplicabilidad, para establecer un panorama sobre el estado del arte actual y sugerir la profundización de la investigación sobre las áreas que presenten menor desarrollo. Los resultados de los diferentes estudios sugieren una inconformidad generalizada sobre el cálculo de la evaporación y la necesidad por generar modelos integradores que estandaricen su cálculo.

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Swimming pools as heat sinks for air conditioners: Model design and experimental validation for natural thermal behavior of the pool

Cited by 44 publications

References 10 publications

Improving the efficiency of an air conditioning system using a fire water tank as thermal accumulator

Improving the efficiency of an air conditioning system using a fire water tank as thermal accumulator

Swimming pool heating technology: A state-of-the-art review

Swimming Pool heating systems: A review of applied models

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