A dynamic simulation model for transient absorption chiller performance. Part II: Numerical results and experimental verification

Kohlenbach, Paul; Ziegler, Felix

doi:10.1016/j.ijrefrig.2007.06.010

Cited by 73 publications

(31 citation statements)

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“…Dynamic model of a small single-effect absorption chiller was developed by Kohlenbach and Ziegler. 37,38 The model is based on the external and internal steady-state enthalpy balances for all system components. They conducted sensitivity analysis based on the variation in model parameters.…”

Section: System Mechanismmentioning

confidence: 99%

Recent trends in solar thermal sorption cooling system technology

Bataineh

Al-rifai

2015

Advances in Mechanical Engineering

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Solar thermal cooling is the best alternative solution to overcome the problems associated with using nonrenewable resources. There are several thermal cooling methods developed differing from each other according to the thermodynamic cycle and type of refrigerant used. Recent developments in absorption and adsorption solar cooling systems are presented. Summarized thermodynamic modeling for both absorption and adsorption solar cooling systems is given. Brief thermal analysis among the types of solar collectors is presented. System efficiencies and optimization analysis are presented. The influences of geometrical, system configurations, and physical parameters on the performance of solar thermal sorption cooling system are investigated. The basis for the design of absorption and adsorption solar cooling systems is provided. Several case studies in different climatic conditions are presented. Economic feasibility for both systems is discussed. Comparison between the absorption and adsorption solar cooling system is summarized.

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Section: System Mechanismmentioning

confidence: 99%

Recent trends in solar thermal sorption cooling system technology

Bataineh

Al-rifai

2015

Advances in Mechanical Engineering

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“…In this iterative process use is made of T 1 , which is assumed to be slightly higher than the arithmetic mean between the inlet and outlet temperature of the cooling water circuit temperatures, T 13 and T 16 respectively, and T 4…”

Section: + + #$ #!# # / #$ #$ )$ **mentioning

confidence: 99%

“…an inter model comparative exercise where the results obtained for the proposed chiller were compared to results obtained from the model presented by Kohlenbach and Ziegler in [13,16], which was calibrated against the same 10 kW th chiller; and the model was compared to a separate set of experimental results compared to that used for calibration purposes. seconds; this is a difference of around 3%.…”

Section: 4mentioning

confidence: 99%

The development and calibration of a generic dynamic absorption chiller model

Borg

Kelly

2012

Energy and Buildings

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This version is available at https://strathprints.strath.ac.uk/42941/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Strathprints administrator: strathprints@strath.ac.ukThe Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output. Simon Paul Borg i , Nicolas James Kelly Energy Systems Research Unit Department of Mechanical and Aerospace Engineering University of Strathclyde, Glasgow, UKAlthough absorption cooling has been available for many years, the technology has typically been viewed as a poorly performing alternative to vapour compression refrigeration. Rising energy prices and the requirement to improve energy efficiency is however driving renewed interest in the technology, particularly within the context of combined cooling, heat and power systems (CCHP) for buildings. In order to understand the performance of absorption cooling, numerous models are available in the literature. However, the complexities involved in the thermodynamics of absorption chillers have so far restricted researchers to creating steady state or dynamic models reliant on data measurements of the internal chiller state, which require difficult to obtain, intrusive measurements.The pragmatic, yet fully dynamic model described in this paper is designed to be easily calibrated using data obtained from the measurements of inflows and outflows to a chiller, without resorting to intrusive measurements. The model comprises a series of linked control volumes featuring both performance maps and lumped mass volumes, which reflect the underlying physical structure of the device. The model was developed for the ESP r building simulation tool. This paper describes the modelling approach, theory and limitations, along with its calibration and the application of the model to a specific example.The increased use of air conditioning in buildings, including dwellings over the last 30 years has contributed to a significant increase in electrical energy consumption [1], particularly in southern European countries [2]. The conditioning systems installed are typically packaged, spli...

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“…Furthermore, the corresponding dynamic simulator is most useful to assess the applicability and limitation of alternative control strategies. Therefore, research on the dynamic simulation of absorption chiller is gathering increased attention [7]- [8], [9]. In this paper we study the absorption chiller with a water/lithium bromide solution.…”

Section: Introductionmentioning

confidence: 99%

A Dynamic Model of an Absorption Chiller for Air Conditioning

Bittanti¹,

Marco²,

Giannatempo³

et al. 2024

RE&PQJ

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Abstract. In this paper we study the absorption chiller with a water/lithium bromide solution. Its dynamic behaviour is described by means of constitutive correlationships and conservation equations. We will work out a detailed model linking the plant dynamic behaviour to the various phenomena and their interactions. The model is implemented using Simulink libraries that interact with several S-functions written in the C programming language.

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A dynamic simulation model for transient absorption chiller performance. Part II: Numerical results and experimental verification

Cited by 73 publications

References 1 publication

Recent trends in solar thermal sorption cooling system technology

Recent trends in solar thermal sorption cooling system technology

The development and calibration of a generic dynamic absorption chiller model

A Dynamic Model of an Absorption Chiller for Air Conditioning

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