The Experts below are selected from a list of 255 Experts worldwide ranked by ideXlab platform
Recep Yumrutaş - One of the best experts on this subject based on the ideXlab platform.
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Thermal analysis and modeling of a swimming Pool Heating system by utilizing waste energy rejected from a chiller unit of an ice rink
Thermal Science, 2017Co-Authors: Muhammed Enes Kuyumcu, Recep YumrutaşAbstract:This study deals with the thermal analysis and modeling of a swimming Pool Heating system in which the waste energy rejected from the chiller unit of an ice rink is used as an energy source. The system consists of a swimming Pool and an ice rink coupled by a chiller unit. The swimming Pool and the ice rink both indoor types and were constructed in city of Gaziantep, Turkey. The thermal energy requirement for each section is determined by thermal analysis of each component of the system. Effects of different design parameters such as ceiling insulation thickness, ceiling emissivity, Carnot efficiency factor and size of the ice rink on the thermal energy requirements and coefficient of performance of the chiller unit are investigated. As a result of analyses of the system, the minimum ice rink area is determined in order to meet annual total heat energy demand of the olympic-sized swimming Pool.
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performance of a swimming Pool Heating system by utilizing waste energy rejected from an ice rink with an energy storage tank
Energy Conversion and Management, 2016Co-Authors: Muhammed Enes Kuyumcu, Hakan Tutumlu, Recep YumrutaşAbstract:Abstract This study deals with determining the long period performance of a swimming Pool Heating system by utilizing waste heat energy that is rejected from a chiller unit of ice rink and subsequently stored in an underground thermal energy storage (TES) tank. The system consists of an ice rink, a swimming Pool, a spherical underground TES tank, a chiller and a heat pump. The ice rink and the swimming Pool are both enclosed and located in Gaziantep, Turkey. An analytical model was developed to obtain the performance of the system using Duhamel’s superposition and similarity transformation techniques. A computational model written in MATLAB program based on the transient heat transfer is used to obtain the annual variation of the ice rink and the swimming Pool energy requirements, the water temperature in the TES tank, COP, and optimum ice rink size depending on the different ground, TES tank, chiller, and heat pump characteristics. The results obtained from the analysis indicate that 6–7 years’ operational time span is necessary to obtain the annual periodic operation condition. In addition, an ice rink with a size of 475 m 2 gives the optimum performance of the system with a semi-Olympic size swimming Pool (625 m 2 ).
Muhammed Enes Kuyumcu - One of the best experts on this subject based on the ideXlab platform.
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Thermal analysis and modeling of a swimming Pool Heating system by utilizing waste energy rejected from a chiller unit of an ice rink
Thermal Science, 2017Co-Authors: Muhammed Enes Kuyumcu, Recep YumrutaşAbstract:This study deals with the thermal analysis and modeling of a swimming Pool Heating system in which the waste energy rejected from the chiller unit of an ice rink is used as an energy source. The system consists of a swimming Pool and an ice rink coupled by a chiller unit. The swimming Pool and the ice rink both indoor types and were constructed in city of Gaziantep, Turkey. The thermal energy requirement for each section is determined by thermal analysis of each component of the system. Effects of different design parameters such as ceiling insulation thickness, ceiling emissivity, Carnot efficiency factor and size of the ice rink on the thermal energy requirements and coefficient of performance of the chiller unit are investigated. As a result of analyses of the system, the minimum ice rink area is determined in order to meet annual total heat energy demand of the olympic-sized swimming Pool.
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performance of a swimming Pool Heating system by utilizing waste energy rejected from an ice rink with an energy storage tank
Energy Conversion and Management, 2016Co-Authors: Muhammed Enes Kuyumcu, Hakan Tutumlu, Recep YumrutaşAbstract:Abstract This study deals with determining the long period performance of a swimming Pool Heating system by utilizing waste heat energy that is rejected from a chiller unit of ice rink and subsequently stored in an underground thermal energy storage (TES) tank. The system consists of an ice rink, a swimming Pool, a spherical underground TES tank, a chiller and a heat pump. The ice rink and the swimming Pool are both enclosed and located in Gaziantep, Turkey. An analytical model was developed to obtain the performance of the system using Duhamel’s superposition and similarity transformation techniques. A computational model written in MATLAB program based on the transient heat transfer is used to obtain the annual variation of the ice rink and the swimming Pool energy requirements, the water temperature in the TES tank, COP, and optimum ice rink size depending on the different ground, TES tank, chiller, and heat pump characteristics. The results obtained from the analysis indicate that 6–7 years’ operational time span is necessary to obtain the annual periodic operation condition. In addition, an ice rink with a size of 475 m 2 gives the optimum performance of the system with a semi-Olympic size swimming Pool (625 m 2 ).
Sergio Colle - One of the best experts on this subject based on the ideXlab platform.
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multi objective optimization of a solar assisted heat pump for swimming Pool Heating using genetic algorithm
Applied Thermal Engineering, 2018Co-Authors: Allan R. Starke, Jose M. Cardemil, Sergio ColleAbstract:Abstract A proper assessment of Heating systems for swimming Pools should evaluate the compromise between comfort level and the willingness to pay for it. The present work presents a multi-objective optimization of indirect solar assisted heat pump systems for outdoor swimming Pool Heating. Four different configurations are reported; (air-to-water heat pump and three solar assisted heat pumps, air-to-water, water-to-water and a dual-source); and evaluated in six different locations (three location in Chile: Antofagasta, Santiago, and Concepcion; and three locations in Brazil: Brazilia, Sao Paulo, and Florianopolis). The methodology approach configures two objectives optimization, the minimization of the Annualized Life Cycle Cost (ALCC) and the maximization of the comfort level offered by the swimming Pool. The optimization scheme consists of using a combination of tools: the energy-savings potential of i-SAHP are evaluated using the TRNSYS software in combination with GenOpt; and the economic modeling and optimization are performed in the MATLAB environment, using an approximation model and variant of NSGA-II genetic algorithm for building the Pareto frontiers. The optimization results demonstrate that solar-assisted configurations present significant improvements in performance for almost all locations, reaching the same levels of comfort at lower ALCCs when compared with the ASHP configuration.
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Thermal analysis of solar-assisted heat pumps for swimming Pool Heating
Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2017Co-Authors: Allan R. Starke, Jose M. Cardemil, Rodrigo Escobar, Sergio ColleAbstract:The present work analyzes the technical feasibility of solar-assisted heat pumps for swimming Pool Heating in South Brazil. The methodology is based on computer simulations for four configurations of Heating systems for private outdoor Pools that are located in Florianopolis, SC, Brazil. The simulations were performed using TRNSYS software. The four configurations considered herein include a conventional heat pump in which ambient air is used as the heat source for an air-to-water heat pump (ASHP), a parallel configuration between the solar collectors and an air-to-water heat pump (SA-ASHP), a series configuration in which the solar collectors are used as the heat source for a water-to-water heat pump (SA-WSHP), and a combination of the last two systems (SA-DSHP). The simulation results indicate that the solar-assisted heat pump systems can achieve a significantly better performance than a conventional heat pump system. The proposed schemes can reduce energy consumption up to 48%, and the systems can achieve a seasonal performance factor between 6.7 and 8.2. Therefore, a proper design of the solar field is determined through a detailed economic assessment by combining the cost and performance of all of the system components. However, the results of the evaluation shows that only SA-ASHP and SA-DSHP are economically feasible.
Yantong Li - One of the best experts on this subject based on the ideXlab platform.
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a multi objective optimal design method for thermal energy storage systems with pcm a case study for outdoor swimming Pool Heating application
Journal of energy storage, 2020Co-Authors: Yantong Li, Zhixiong Ding, Mohammad Shakerin, Nan ZhangAbstract:Abstract Traditional design methods for thermal energy storage systems (TES) with phase change material (PCM) are mostly based on worst-case scenario, which causes too large size of main components. Current optimal design methods for these systems mainly focus on single optimization objective, which only satisfies the unilateral requirement. A multi-objective optimal design method for these systems is urgently needed, and therefore this paper remedies this knowledge gap. The response surface methodology is adopted to develop the surrogated models of the optimization objectives to improve the computational efficiency. Then, the non-dominated sorting genetic algorithm II is used to perform the double-objective and triple-objective optimization for acquiring the Pareto optimal solutions. Finally, the final decision-making methods that includes LINMAP and TOPSIS are adopted to identify the final optimal solutions. A case study of optimizing the design for an outdoor swimming Pool (OSP) Heating system with PCM storage tank, is conducted to illustrate the proposed approach. Eight final optimal solutions were identified, and the sp of the system in these solutions was 1.05, 1.24, 1.04, 1.22, 1.06, 1.06, 1.07, and 0.88 years, respectively. Results indicate that the proposed approach is effective to conduct the multi-objective optimization for the OSP Heating systems and guide the design optimization for the TES systems with PCM.
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techno economic optimization of open air swimming Pool Heating system with pcm storage tank for winter applications
Renewable Energy, 2020Co-Authors: Yantong Li, Zhixiong Ding, Yaxing DuAbstract:Abstract Feasible Heating systems have been designed to increase the availability of open-air swimming Pools in winter in subtropical climate regions. However, the approach to optimally size the main components of the system from multiple aspects is lacking. A techno-economic optimization method for swimming Pool Heating systems is proposed here. Minimizing the lifecycle cost of the system while ensuring the thermal comfort of the Pool are considered as the optimization objectives. The volume of phase change material storage tank and the Heating capacity of air-source heat pumps are selected as design variables. To improve computational efficiency, surrogate models are developed using the response surface approach, in which the dataset is generated from the simulation platform established using MATLAB and TRNSYS. Generic algorithm and non-dominated sorting genetic algorithm II are adopted to conduct single-objective and double-objective optimizations, respectively. Case studies indicate that optimal combinations for the size of main components can be identified using the proposed optimization approach. The energy and economic performance of the Heating system are enhanced after optimization. The proposed techno-economic optimization method provides an instructive guideline for the optimal design of swimming Pool Heating systems.
Allan R. Starke - One of the best experts on this subject based on the ideXlab platform.
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multi objective optimization of a solar assisted heat pump for swimming Pool Heating using genetic algorithm
Applied Thermal Engineering, 2018Co-Authors: Allan R. Starke, Jose M. Cardemil, Sergio ColleAbstract:Abstract A proper assessment of Heating systems for swimming Pools should evaluate the compromise between comfort level and the willingness to pay for it. The present work presents a multi-objective optimization of indirect solar assisted heat pump systems for outdoor swimming Pool Heating. Four different configurations are reported; (air-to-water heat pump and three solar assisted heat pumps, air-to-water, water-to-water and a dual-source); and evaluated in six different locations (three location in Chile: Antofagasta, Santiago, and Concepcion; and three locations in Brazil: Brazilia, Sao Paulo, and Florianopolis). The methodology approach configures two objectives optimization, the minimization of the Annualized Life Cycle Cost (ALCC) and the maximization of the comfort level offered by the swimming Pool. The optimization scheme consists of using a combination of tools: the energy-savings potential of i-SAHP are evaluated using the TRNSYS software in combination with GenOpt; and the economic modeling and optimization are performed in the MATLAB environment, using an approximation model and variant of NSGA-II genetic algorithm for building the Pareto frontiers. The optimization results demonstrate that solar-assisted configurations present significant improvements in performance for almost all locations, reaching the same levels of comfort at lower ALCCs when compared with the ASHP configuration.
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Thermal analysis of solar-assisted heat pumps for swimming Pool Heating
Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2017Co-Authors: Allan R. Starke, Jose M. Cardemil, Rodrigo Escobar, Sergio ColleAbstract:The present work analyzes the technical feasibility of solar-assisted heat pumps for swimming Pool Heating in South Brazil. The methodology is based on computer simulations for four configurations of Heating systems for private outdoor Pools that are located in Florianopolis, SC, Brazil. The simulations were performed using TRNSYS software. The four configurations considered herein include a conventional heat pump in which ambient air is used as the heat source for an air-to-water heat pump (ASHP), a parallel configuration between the solar collectors and an air-to-water heat pump (SA-ASHP), a series configuration in which the solar collectors are used as the heat source for a water-to-water heat pump (SA-WSHP), and a combination of the last two systems (SA-DSHP). The simulation results indicate that the solar-assisted heat pump systems can achieve a significantly better performance than a conventional heat pump system. The proposed schemes can reduce energy consumption up to 48%, and the systems can achieve a seasonal performance factor between 6.7 and 8.2. Therefore, a proper design of the solar field is determined through a detailed economic assessment by combining the cost and performance of all of the system components. However, the results of the evaluation shows that only SA-ASHP and SA-DSHP are economically feasible.