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A district heating system based on absorption heat exchange with CHP systems

Lin FU, Yan LI, Yi JIANG, Shigang ZHANG,

Frontiers in Energy 2010, Volume 4, Issue 1,   Pages 77-83 doi: 10.1007/s11708-010-0022-0

Abstract: district heating systems with cogeneration, a district heating system is presented in this paper based on absorptionheat exchange in the cogeneration system named Co-ah cycle, which means that the cogeneration systemis based on absorption heat exchange.to about 25°C through the absorption heat-exchange units.of the cogeneration plant, return water is heated orderly by the exhaust steam in the condenser, the absorption

Keywords： cogeneration     district heating     absorption heat exchange     Co-ah cycle    

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Absorption heat pump for waste heat reuse: current states and future development

Zhenyuan XU, Ruzhu WANG

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 414-436 doi: 10.1007/s11708-017-0507-1

Abstract: Absorption heat pump attracts increasing attention due to its advantages in low grade thermal energyIn this paper, three important aspects for absorption heat pump for waste heat reuse are reviewed.In the first part, different absorption heat pump cycles are classified and introduced.Absorption heat pumps for heat amplification and absorption heat transformer for temperature upgradingIn the third part, the applications of the absorption heat pump and absorption heat transformer for waste

Keywords： absorption     heat pump     heat transformer     waste heat     working pair    

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Heat, mass, and work exchange networks

Zhiyou CHEN, Jingtao WANG

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4,   Pages 484-502 doi: 10.1007/s11705-012-1221-5

Abstract: Heat (energy), water (mass), and work (pressure) are the most fundamental utilities for operation unitsThe application of heat exchange networks (HENs), mass exchange networks (MENs), water allocation heatexchange networks (WAHENs) and work exchange networks (WENs) have resulted in the significant savingreview inspires researchers to propose more efficient and convenient methods for the design of existing exchange

Keywords： process system engineering     integration methods     heat exchange network     mass exchange network     work exchange    

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Numerical study of a hybrid absorption-compression high temperature heat pump for industrial waste heat

Zhiwei MA, Huashan BAO, Anthony Paul ROSKILLY

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 503-509 doi: 10.1007/s11708-017-0515-1

Abstract: The present paper aims at exploring a hybrid absorption-compression heat pump (HAC-HP) to upgrade andrecover the industrial waste heat in the temperature range of 60°C–120°C.conventional HAC-HP system, to allow flexible utilization of energy sources of electricity and waste heatThe suitable operation ranges of HAC-HP are recommended for the waste heat at 60°C, 80°C, 100°C, andThe recirculation flow ratio should be lower than 9, 6, 5, and 4 respectively for these waste heat, while

Keywords： absorption compression     high temperature heat pump     efficiency     industrial waste heat     thermodynamic analysis    

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Analysis of flow and heat transfer characteristics of porous heat-storage wall in greenhouse

OUYANG Li, LIU Wei

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 406-409 doi: 10.1007/s11708-008-0094-2

Abstract: The flow and heat transfer characteristics of porous heat-storage wall in greenhouse are studied by usingThe results show that the heat exchange between the air and the solid matrix of the porous heat-storageBecause the incidence of solar radiation on the porous heat-storage wall is not uniform, the new composite

Keywords： incidence     thermal conductivity     heat-storage     exchange     composite    

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Performance evaluation of an improved biomass-fired cogeneration system simultaneously using extraction steam, cooling water, and feedwater for heating

Frontiers in Energy 2022, Volume 16, Issue 2,   Pages 321-335 doi: 10.1007/s11708-021-0741-4

Abstract: In place of the traditional single heat source (extraction steam), the extraction steam from the turbinelow-pressure feedwater from the feedwater preheating system were collectively used for producing district heat

Keywords： biomass-fired cogeneration     district heat production system     absorption heat pump     extraction steam    

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TiO supported IrO for anode reversal tolerance in proton exchange membrane fuel cell

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 852-861 doi: 10.1007/s11708-021-0811-7

Abstract: Fuel starvation can occur and cause damage to the cell when proton exchange membrane fuel cells operate

Keywords： proton exchange membrane fuel cell (PEMFC)     fuel starvation     cell reverse     reversal tolerance anode    

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Control strategies for disinfection byproducts by ion exchange resin, nanofiltration and their sequential

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1725-x

Abstract:

● Effects of AER adsorption and NF on DBP precursors, DBPs, and TOX were examined.

Keywords： Disinfection byproducts     Control     Anion exchange resin     Nanofiltration     Cytotoxicity    

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Advancing ion-exchange membranes to ion-selective membranes: principles, status, and opportunities

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 2, doi: 10.1007/s11783-023-1625-0

Abstract:

● IEM ion/ion selectivities of charge, valence, & specific ion are critically assessed.

Keywords： Ion-exchange membranes     Selectivity     Separations    

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Nanostructured gold films exhibiting almost complete absorption of light at visible wavelengths

Hanbin Zheng, Christine Picard, Serge Ravaine

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 2,   Pages 247-251 doi: 10.1007/s11705-018-1710-2

Abstract: Nanostructured metal surfaces have been known to exhibit properties that deviate from that of the bulk material. By simply modifying the texture of a metal surface, various unique optical properties can be observed. In this paper, we present a simple two step electrochemical process combining electrodeposition and anodization to generate black gold surfaces. This process is simple, versatile and up-scalable for the production of large surfaces. The black gold films have remarkable optical behavior as they absorb more than 93% of incident light over the entire visible spectrum and also exhibit no specular reflectance. A careful analysis by scanning electron microscopy reveals that these unique optical properties are due to their randomly rough surface, as they consist in a forest of dendritic microstructures with a nanoscale roughness. This new type of black films can be fabricated to a large variety of substrates, turning them to super absorbers with potential applications in photovoltaic solar cells or highly sensitive detectors and so on.

Keywords： nanostructuration     light absorption     coating     gold     electrodeposition     anodization    

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Effect of light scattering on the performance of a direct absorption solar collector

Kwang Hyun WON, Bong Jae LEE

Frontiers in Energy 2018, Volume 12, Issue 1,   Pages 169-177 doi: 10.1007/s11708-018-0527-5

Abstract: The collector efficiency of a direct absorption solar collector (DASC) is very sensitive to optical propertiesof the working fluid, such as absorption and scattering coefficients.metal, however, the scattering cross-section of metallic nanoparticles could be comparable to their absorptionperformance if the scattering coefficient of nanofluid is carefully engineered depending on its value of the absorption

Keywords： direct absorption solar collector     plasmonic nanofluid     light scattering    

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Performance analysis of solar absorption-subcooled compression hybrid refrigeration system in subtropical

Xiangyang YE,Liming LIU,Zeyu LI

Frontiers in Energy 2019, Volume 13, Issue 1,   Pages 185-192 doi: 10.1007/s11708-017-0452-z

Abstract: Solar absorption-subcooled compression hybrid refrigeration system is a new type of efficient and economicalAs the condensation temperature ranges from 38°C to 50°C, the working time fraction of the absorptionThe average COP of the absorption subsystem is improved from 0.366 to 0.407.However, when the temperature of the absorption increases from 36°C to 48°C, the average COP of hybridMoreover, the working time fraction of the absorption subsystem decreases from 80% to 71.7%.

Keywords： solar     absorption-subcooled     compression hybrid     dynamic simulation     performance analysis    

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Electro-assisted regeneration of ion exchange resins

LIU Zhigang, WANG Ying, LI Yansheng, CHANG Hui

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 4,   Pages 410-414 doi: 10.1007/s11783-008-0069-x

Abstract: Electro-assisted regeneration (EAR) for the mixed bed of strongly acidic cation and weakly basic anion exchange

Keywords： effluent volume     acidic     three-compartment     weakly     exchange    

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Effect of fine solid particles on absorption rate of gaseous CO

LU Sumin, MA Youguang, SHEN Shuhua, ZHU Chunying

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 368-372 doi: 10.1007/s11705-008-0067-3

Abstract: The influence of the properties of solid particles in slurry on the absorption of CO in the slurry wasThe absorption experiments were carried out in three different slurries consisting of water, cyclohexaneThe experimental results show that the active carbon particles could enhance the absorption rate of gaseousHowever, it was observed that the active alumina and silica gel particles could enhance the absorptionThese phenomena indicate that the solid particles, which could enhance the gaseous CO absorption rate

Keywords： constant     influence     soybean     solvent     concentration    

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Salinity exchange between seawater/brackish water and domestic wastewater through electrodialysis for

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 2, doi: 10.1007/s11783-023-1616-1

Abstract:

● Present a general concept called “salinity exchange”.

Keywords： Desalination     Potable water reuse     Ion-exchange membrane     Salinity gradient energy     Wastewater discharge    

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Title Author Date Type Operation

A district heating system based on absorption heat exchange with CHP systems

Lin FU, Yan LI, Yi JIANG, Shigang ZHANG,

Journal Article

Absorption heat pump for waste heat reuse: current states and future development

Zhenyuan XU, Ruzhu WANG

Journal Article

Heat, mass, and work exchange networks

Zhiyou CHEN, Jingtao WANG

Journal Article

Numerical study of a hybrid absorption-compression high temperature heat pump for industrial waste heat

Zhiwei MA, Huashan BAO, Anthony Paul ROSKILLY

Journal Article

Analysis of flow and heat transfer characteristics of porous heat-storage wall in greenhouse

OUYANG Li, LIU Wei

Journal Article

Performance evaluation of an improved biomass-fired cogeneration system simultaneously using extraction steam, cooling water, and feedwater for heating

Journal Article

TiO supported IrO for anode reversal tolerance in proton exchange membrane fuel cell

Journal Article

Control strategies for disinfection byproducts by ion exchange resin, nanofiltration and their sequential

Journal Article

Advancing ion-exchange membranes to ion-selective membranes: principles, status, and opportunities

Journal Article

Nanostructured gold films exhibiting almost complete absorption of light at visible wavelengths

Hanbin Zheng, Christine Picard, Serge Ravaine

Journal Article

Effect of light scattering on the performance of a direct absorption solar collector

Kwang Hyun WON, Bong Jae LEE

Journal Article

Performance analysis of solar absorption-subcooled compression hybrid refrigeration system in subtropical

Xiangyang YE,Liming LIU,Zeyu LI

Journal Article

Electro-assisted regeneration of ion exchange resins

LIU Zhigang, WANG Ying, LI Yansheng, CHANG Hui

Journal Article

Effect of fine solid particles on absorption rate of gaseous CO

LU Sumin, MA Youguang, SHEN Shuhua, ZHU Chunying

Journal Article

Salinity exchange between seawater/brackish water and domestic wastewater through electrodialysis for

Journal Article