Performance enhancement of a thermally activated cooling system using microchannel heat exchangers

Wang, Hailei; Peterson, Richard B.

doi:10.1016/j.applthermaleng.2011.05.026

Cited by 26 publications

(9 citation statements)

References 40 publications

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“…[168,169]. However, the design of more compact and lighter heat exchangers plays a very important role, particularly in the emerging field of mobile applications.…”

Section: Future Scenariosmentioning

confidence: 99%

“…However, the design of more compact and lighter heat exchangers plays a very important role, particularly in the emerging field of mobile applications. To this end, several heat transfer enhancement techniques are investigated, leading to new concepts such as microchannel [168,170,171] and porous [172,173] heat exchangers. The addition of nanoparticles to the working fluid might be beneficial for ORC power system for which ultra-high heat transfer to and from the working fluid is relevant [174].…”

Section: Future Scenariosmentioning

confidence: 99%

See 1 more Smart Citation

Organic Rankine Cycle Power Systems: From the Concept to Current Technology, Applications, and an Outlook to the Future

Colonna

Casati

Trapp

et al. 2015

Journal of Engineering for Gas Turbines and Power

312

190

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The cumulative global capacity of organic Rankine cycle (ORC) power systems for the conversion of renewable and waste thermal energy is undergoing a rapid growth and is estimated to be approx. 2000 MW e considering only installations that went into operation after 1995. The potential for the conversion of the thermal power coming from liquiddominated geothermal reservoirs, waste heat from primary engines or industrial processes, biomass combustion, and concentrated solar radiation into electricity is arguably enormous. ORC technology is possibly the most flexible in terms of capacity and temperature level and is currently often the only applicable technology for the conversion of external thermal energy sources. In addition, ORC power systems are suitable for the cogeneration of heating and/or cooling, another advantage in the framework of distributed power generation. Related research and development is therefore very lively. These considerations motivated the effort documented in this article, aimed at providing consistent information about the evolution, state, and future of this power conversion technology. First, basic theoretical elements on the thermodynamic cycle, working fluid, and design aspects are illustrated, together with an evaluation of the advantages and disadvantages in comparison to competing technologies. An overview of the long history of the development of ORC power systems follows, in order to place the more recent evolution into perspective. Then, a compendium of the many aspects of the state of the art is illustrated: the solutions currently adopted in commercial plants and the main-stream applications, including information about exemplary installations. A classification and terminology for ORC power plants are proposed. An outlook on the many research and development activities is provided, whereby information on new high-impact applications, such as automotive heat recovery is included. Possible directions of future developments are highlighted, ranging from efforts targeting volume-produced stationary and mobile mini-ORC systems with a power output of few kW e , up to large MW e base-load ORC plants.

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“…[168,169]. However, the design of more compact and lighter heat exchangers plays a very important role, particularly in the emerging field of mobile applications.…”

Section: Future Scenariosmentioning

confidence: 99%

Section: Future Scenariosmentioning

confidence: 99%

Organic Rankine Cycle Power Systems: From the Concept to Current Technology, Applications, and an Outlook to the Future

Colonna

Casati

Trapp

et al. 2015

Journal of Engineering for Gas Turbines and Power

312

190

View full text Add to dashboard Cite

show abstract

“…The actual heat transfer effectiveness of the recuperator was significantly higher than the designed value of 85% due to a relatively conservative design approach. 31 The thermally activated cooling system with integrated microchannels achieved a heat flux of over 5 kW with an overall coefficient of performance equal to 0.8. The thermally activated systems offer various advantages such as higher energy efficiency, higher indoor air quality, lower air emissions, and lower peak electricity demand.…”

Section: Industrial and Engineering Chemistry Researchmentioning

confidence: 99%

“…However, a simplified design model is desired within an acceptable error range. Wang and Peterson proposed a simplified model (without considering conjugate heat transfer and entrance effects) for a new thermally activated cooling system made by integrating an organic Rankine cycle and vapor compression cooling cycle . The thermally activated cooling system and integrated microchannel boiler/recuperator (374.65 × 133.35 × 66.294 mm) are shown in Figure .…”

Section: Qualitative Analysis Of Emerging C-mhx Technologiesmentioning

confidence: 99%

“…The thermo-hydrodynamic performance of microfluidic devices has been widely investigated by various researchers. ,− The growth of research articles on C-MHXs has been quantified from 1955 to 2017; an analysis of the publications accomplished via Scopus () and ISI Web of Science () showing the spectrum of the applications of CHEs technologies in various fields is presented in Figure . Applications of C-MHXs are found in all important branches of engineering, accounting for 53% of all applications, 16% of which are in chemical engineering alone.…”

Section: Introductionmentioning

confidence: 99%

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Process Intensification for Compact and Micro Heat Exchangers through Innovative Technologies: A Review

Singh

Montesinos‐Castellanos

Nigam

2019

Ind. Eng. Chem. Res.

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This Review offers quantitative and qualitative analyses of various compact and micro heat exchangers (C-MHXs) in terms of the friction factor, Nusselt number, and heat transfer augmentation mechanism. The C-MHXs, which have already been implemented in industry, are analyzed along with brand-new heat transfer technologies. Pressure drop and Nusselt number are used to characterize the performance of the heat transfer technologies and specifically to ascertain their appropriateness in analyzing C-MHXs. A precise analysis of the correlations reveals that the design parameters must be carefully examined before selecting a suitable correlation. In addition to the quantitative and qualitative analyses, computational fluid dynamics analysis used to design the C-MHXs is also compared with experimental analysis found in the literature. This review of C-MHX technologies will hopefully encourage and motivate more in-depth research into energy-efficient heat transfer devices.

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Factors Determining Thermohydraulic Efficiency of Liquid Cooling Systems for Internal Combustion Engines

Zhukov

Erofeev

Melnik

2020

International Scientific Conference Energy Management of Municipal Facilities and Sustainable Energy Technologies EMMFT 2019

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Performance enhancement of a thermally activated cooling system using microchannel heat exchangers

Cited by 26 publications

References 40 publications

Organic Rankine Cycle Power Systems: From the Concept to Current Technology, Applications, and an Outlook to the Future

Organic Rankine Cycle Power Systems: From the Concept to Current Technology, Applications, and an Outlook to the Future

Process Intensification for Compact and Micro Heat Exchangers through Innovative Technologies: A Review

Factors Determining Thermohydraulic Efficiency of Liquid Cooling Systems for Internal Combustion Engines

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