Thermoeconomic optimization of a LiBr absorption refrigeration system

Kızılkan, Önder; Şencan, Arzu; Kalogirou, Soteris A.

doi:10.1016/j.cep.2006.11.007

Cited by 82 publications

(22 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The cost of the heat exchangers can be estimated using the linear correlation proposed by KizIlkan et al [6].…”

Section: Expected Cost Performancementioning

confidence: 99%

“…Hence, there is a clear need to develop strategies able to optimize their design and operation from a thermodynamic and economic point of view so they can become a real alternative to the standard compression systems. Specifically, most of the methods proposed so far to accomplish this task rely on the concept of thermoeconomic analysis [5][6][7], an approach that combines in a single framework both, a thermodynamic model (usually based on exergy considerations) and an economic model (i.e., a cost model).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Economic performance optimization of an absorption cooling system under uncertainty

Gebreslassie

Guillén‐Gosálbez

Jiménez

et al. 2009

Applied Thermal Engineering

View full text Add to dashboard Cite

a b s t r a c tMany of the strategies devised so far to address the optimization of energy systems are deterministic approaches that rely on estimated data. However, in real world applications there are many sources of uncertainty that introduce variability into the decision-making problem. Within this general context, we propose a novel approach to address the design of absorption cooling systems under uncertainty in the energy cost. As opposed to other approaches that optimize the expected performance of the system as a single objective, in our method the design task is formulated as a stochastic bi-criteria non-linear optimization problem that simultaneously accounts for the minimization of the expected total cost and the financial risk associated with the investment. The latter criterion is measured by the downside risk, which avoids the need to define binary variables thus improving the computational performance of the model. The capabilities of the proposed modeling framework and solution strategy are illustrated in a case study problem that addresses the design of a typical absorption cooling system. Numerical results demonstrate that the method presented allows to manage the risk level effectively by varying the area of the heat exchangers of the absorption cycle. Specifically, our strategy allows identifying the optimal values of the operating and design variables of the cycle that make it less sensitive to fluctuations in the energy price, thus improving its robustness in the face of uncertainty.

show abstract

“…The cost of the heat exchangers can be estimated using the linear correlation proposed by KizIlkan et al [6].…”

Section: Expected Cost Performancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Economic performance optimization of an absorption cooling system under uncertainty

Gebreslassie

Guillén‐Gosálbez

Jiménez

et al. 2009

Applied Thermal Engineering

View full text Add to dashboard Cite

show abstract

“…Although economic analyses for conventional systems (without thermal storage) [92] and systems with sensible storage (water) tanks are abundant [93][94][95][96][97][98][99], comparative cost analyses of using a PCM as a latent heat thermal storage unit in a solar absorption cooling system are rarely seen. Godarzi et al [100] designed a PCM storage system based on exergo-economic analysis and a genetic algorithm in a 45.4 kW LiBr/H 2 O system.…”

Section: Performance and Cost Of Tes Systemsmentioning

confidence: 99%

A Comprehensive Review of Thermal Energy Storage

2018

View full text Add to dashboard Cite

Thermal energy storage (TES) is a technology that stocks thermal energy by heating or cooling a storage medium so that the stored energy can be used at a later time for heating and cooling applications and power generation. TES systems are used particularly in buildings and in industrial processes. This paper is focused on TES technologies that provide a way of valorizing solar heat and reducing the energy demand of buildings. The principles of several energy storage methods and calculation of storage capacities are described. Sensible heat storage technologies, including water tank, underground, and packed-bed storage methods, are briefly reviewed. Additionally, latent-heat storage systems associated with phase-change materials for use in solar heating/cooling of buildings, solar water heating, heat-pump systems, and concentrating solar power plants as well as thermo-chemical storage are discussed. Finally, cool thermal energy storage is also briefly reviewed and outstanding information on the performance and costs of TES systems are included.

show abstract

“…For economic analysis of HVAC system, the study of Kizilkan et al [12] on thermoeconomic optimization of a LiBr absorption refrigeration system can be mentioned. The thermoeconomic optimization study was performed in order to determine the optimum operating temperatures and parameters of a LiBr absorption refrigeration system.…”

Section: Introductionmentioning

confidence: 99%

Techno-economic evaluation of a ventilation system assisted with exhaust air heat recovery, electrical heater and solar energy

Özyoğurtçu¹,

Mobedi²,

Özerdem³

2014

Energy and Buildings

View full text Add to dashboard Cite

a b s t r a c tThe energy consumed to condition fresh air is considerable, particularly for the buildings such as cinema, theatre or gymnasium saloons. The aim of the present study is to design a ventilation system assisted with exhaust air heat recovery unit, electrical heater and stored solar energy, then to make an economical analysis based on life cycle cost (LCC) to find out its payback period. The system is able to recover thermal energy of exhaust air, store solar energy during the sunlight period and utilize it in the period between 17:00 and 24:00 h. The transient behaviour of the system is simulated by the TRNSYS 16 software for winter period from 1st of November to 31st of March for Izmir city of Turkey. The obtained results show that the suggested ventilation system reduces energy consumption by 86% compared to the conventional ventilation system in which an electrical heater is used. The payback period of the suggested system is found to be 5 years and 8 months which is a promising result in favour of the solar energy usage in building ventilation systems.

show abstract

Thermoeconomic optimization of a LiBr absorption refrigeration system

Cited by 82 publications

References 11 publications

Economic performance optimization of an absorption cooling system under uncertainty

Economic performance optimization of an absorption cooling system under uncertainty

A Comprehensive Review of Thermal Energy Storage

Techno-economic evaluation of a ventilation system assisted with exhaust air heat recovery, electrical heater and solar energy

Contact Info

Product

Resources

About