The Experts below are selected from a list of 186564 Experts worldwide ranked by ideXlab platform
Hongguang Jin - One of the best experts on this subject based on the ideXlab platform.
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hybrid liquid desiccant air conditioning system combined with marine aerosol removal driven by Low Temperature Heat source
Applied Energy, 2020Co-Authors: Yuze Dai, Feng Liu, Jun Sui, Dandan Wang, Wei Han, Hongguang JinAbstract:Abstract The hot and humid air containing marine aerosols on tropical islands or coastal areas always leads to serious equipment corrosion and affects the living comfort of residents. Conventionally, an air-conditioning system can only provide cool dry air, and the marine aerosol removal process consumes expendable materials. To simplify the procedure and reduce the energy consumption, a novel hybrid air-conditioning system combined with marine aerosol removal is proposed in this paper. The novel system achieves multiple functions based on the characteristics of liquid-desiccant dehumidification and phase transitions of the ternary solution system, and it can be driven by a Low-Temperature Heat source. Simulation and thermodynamic analysis of the combined system are presented, and the results show that the humidity ratio of the supply air can reach 6.83 g/kg (dry air), with a Temperature of 21.14 °C. Compared with the conventional cooling dehumidification system utilizing vapor compression refrigeration driven by power, the power saving ratio (PSR) and the equivalent power generation efficiency (ηeq) of the proposed system can reach 93.11% and 9.8%, respectively. Further, exergy analyses are carried out, and the results show the air handling process of the novel system has a considerable energy saving potential. Besides, a crystallization experiment is conducted to verify the feasibility of the key NaCl separation process. Finally, economic analyses are carried out, which indicate that the novel system achieves competitive economic performance. This study provides a new hybrid air-conditioning technology for simultaneous cooling, dehumidification and marine aerosol removal by using Low-Temperature Heat.
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a two stage liquid desiccant dehumidification system by the cascade utilization of Low Temperature Heat for industrial applications
Applied Energy, 2017Co-Authors: Wei Han, Jun Sui, Hongguang JinAbstract:Abstract Cooling dehumidification driven by power is widely used in industrial processes to obtain dry air, but the main drawback is its large power consumption. In these processes, large amounts of Low-Temperature waste Heat are released to the environment directly, so there is a great energy-saving potential to recover Low-Temperature waste Heat and generate dry air. A new two-stage liquid desiccant dehumidification system with the cascade utilization of Low-Temperature Heat is proposed. The waste Heat is used in a cascade manner. The higher-Temperature Heat is used to generate a strong desiccant solution, which will be used in the first-stage dehumidifier. The Lower-Temperature Heat is used to drive a single-effect absorption refrigerator and provide cooling energy to the second-stage dehumidifier. Simulation results showed that the proposed system can reduce electricity consumption by 92.29% compared with the conventional cooling dehumidification system driven by power. The ratio of electricity savings to absorbed Heat can reach 7.35%. The advantage of the cascade utilization of the Low-Temperature Heat was further illuminated by studying the driving force in the dehumidifiers, and a preliminary economic and environmental analysis was performed. The increased initial investment can be recovered in only 3.39 years. Approximately 11,028 tons of standard coal are saved per year, and a reduction of 27,488 tons CO 2 can also be realized per year. Finally, a parametric sensitivity analysis was conducted to optimize the system performance. This study may provide a new method to perform dehumidification by efficiently using a Low-Temperature Heat source.
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a novel liquid desiccant dehumidification system driven by Low Temperature Heat for industrial application
Energy Procedia, 2017Co-Authors: Wei Han, Jun Sui, Hongguang JinAbstract:Abstract Cooling dehumidification driven by power is widely used in industrial process to obtain dry air, however, the main drawback is the large power consumption. At the same time, large amount of Low-Temperature waste Heat is released to environment directly. There is a great energy saving potential to recover Low-Temperature waste Heat and generate dry air. A novel two-stage liquid desiccant dehumidification system with cascade utilization of a Low-Temperature Heat is proposed. The waste Heat is used in a cascade way. The higher Temperature Heat is used to generate strong desiccant solution, which will be used in first stage dehumidifier. The Lower Temperature Heat is used to drive a single-effect absorption refrigerator and provide cooling energy to the second stage dehumidifier. Simulation results showed that the proposed system can save 96.17% electricity consumption, compared with the conventional cooling dehumidification system driven by power. The ratio of saving electricity and absorbed Heat can reach 6.67%. Furthermore, the advantage of cascade utilizing Low-Temperature Heat was elucidated by studying the driven force in the dehumidifiers. This study may provide a new way to perform dehumidification by efficiently using a Low-Temperature waste Heat.
Zhicheng Tan - One of the best experts on this subject based on the ideXlab platform.
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Low Temperature Heat capacity and thermodynamic function of bazro3 and pbzro3
The Journal of Chemical Thermodynamics, 2021Co-Authors: Siyu Wang, Zhicheng Tan, Huimin Yan, Donghui Zhao, Quan ShiAbstract:Abstract BaZrO3 and PbZrO3 are both technologically important functional materials particularly with attracting paraelectric and antiferroelectric properties, respectively. However, the current Heat capacity studies on these two compounds are insufficient to understand their intrinsic chemical or physical property on thermodynamics. Herein, we reported Heat capacities of BaZrO3 and PbZrO3 measured using a relaxation calorimeter equipped on the Physical Property Measurement System in the Temperature range from (1.9 to 300) K. The Heat capacity data was fitted to a series of theoretical and empirical models, and the corresponding thermodynamic functions were calculated in the range from (0 to 300) K. The Heat capacity contributions were extracted using the theoretical model and fitting parameters, revealing that the unusual large Heat capacity of BaZrO3 compared with that of PbZrO3 beLow about 2.5 K is likely due to the dominant linear Heat capacity contribution. Also, the Heat capacity of BaZrO3 was compared with those previously reported in literate, and most importantly, the Heat capacity of PbZrO3 is the first time reported in the Temperature region from (40 to 300) K in this work, as far as we know.
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Low Temperature Heat capacity and standard thermodynamic functions of β d arabinose c5h10o5
The Journal of Chemical Thermodynamics, 2016Co-Authors: Ruxi Dai, Zhicheng Tan, Shihui Zhang, Nan Yin, Quan ShiAbstract:Abstract The Heat capacities of β- d -(-)-arabinose were measured using a Quantum Design Physical Property Measurement System (PPMS) over the Temperature range from (1.9 to 300) K, and the experimental values were fitted as a function of Temperature using a series of theoretical and empirical models in the appropriate Temperature ranges, from which the corresponding thermodynamic functions were calculated. The standard molar Heat capacity, entropy and enthalpy of β- d -(-)-arabinose at T = 298.15 K and P = 0.1 MPa were determined to be C p ,m o = (186.29 ± 1.86) J · K−1 · mol−1, S m o = (181.72 ± 1.83) J · K−1 · mol−1 and H m o = (28.52 ± 0.29) kJ · mol−1, respectively.
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Low Temperature Heat capacities and standard molar enthalpy of formation of gramine c11h14n2
Chinese Journal of Chemistry, 2011Co-Authors: Jingtao Chen, Yuxia Kong, Weiwei Yang, Zhicheng TanAbstract:Low-Temperature Heat capacities of gramine (c11h14n2) were measured by a precision automated adiabatic calorimeter over the Temperature range from 78 to 401 k. a polynomial equation of Heat capacities as a function of Temperature was fitted by least squares method. based on the fitted polynomial, the smoothed Heat capacities and thermodynamic functions of the compound relative to the standard reference Temperature 298.15 k were calculated and tabulated at 5 k intervals. the constant-volume energy of combustion of the compound at t=298.15 k was measured by a precision oxygen-bomb combustion calorimeter as delta(c)u=-(35336.7 +/- 13.9) j center dot g-1. the standard molar enthalpy of combustion of the compound was determined to be ?chm0=-(6163.2 +/- 2.4) kj center dot mol-1, according to the definition of combustion enthalpy. finally, the standard molar enthalpy of formation of the compound was calculated to be;chm0=-(166.2 +/- 2.8) kj center dot mol-1 in accordance with hess law.
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Low Temperature Heat capacities and standard molar enthalpy of formation of dichloro bis 2 aminopyridine zinc ii zncl2 c5h6n2 2 s
International Journal of Thermophysics, 2010Co-Authors: Wenyan Dan, Yuxia Kong, Yanjuan Liu, Zhicheng TanAbstract:Dichloro bis(2-aminopyridine) zinc (II), ZnCl2(C5H6N2)2(s), was synthesized by the method of solvonthermal synthesis in which 2-aminopyridine and zinc chloride were chosen as the reactants. X-ray crystallography, chemical analysis, and elemental analysis were applied to characterize the structure and composition of the complex. Low-Temperature Heat capacities of the title compound were measured with a precise small-sample automated adiabatic calorimeter over the Temperature range from 78 K to 398 K. A polynomial equation of the Heat capacities as a function of Temperature was fitted by a least-squares method. Smoothed Heat capacities and thermodynamic functions of the compound relative to the standard reference Temperature (298.15 K) were calculated and tabulated at intervals of 5 K based on the fitted polynomial. A reasonable thermochemical cycle was designed, and the standard molar enthalpies of dissolution for the reactants and products of the synthesis reaction in a selected solvent were measured by an isoperibol solution-reaction calorimeter. In addition, the enthalpy change of the reaction was calculated from the data of the above standard molar enthalpies of dissolution. Finally, the standard molar enthalpy of formation of the complex ZnCl2(C5H6N2)2(s) was determined to be −(400.52 ± 1.66) kJ · mol−1 in accordance with Hess’s law.
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Low Temperature Heat capacities and standard molar enthalpy of formation of ethylenediammonium tetrachlorocobaltate ii chloride h3nch2ch2nh3 2 cocl4 cl2 s
Journal of Chemical & Engineering Data, 2010Co-Authors: Wenyan Dan, Yuxia Kong, Chunling Xin, Zhicheng TanAbstract:A coordination compound, ethylenediammonium tetrachlorocobaltate(II) chloride (H3NCH2CH2NH3)(2)[CoCl4]Cl-2, was synthesized by the method of liquid phase synthesis, in which ethylenediamine, cobalt chloride hexahydrate, and concentrated hydrochloric acid were chosen as the reactants. X-ray crystallography, chemical analysis, and elemental analysis were applied to characterize the structure and composition of the complex. Low-Temperature Heat capacities of the complex were measured with a precise automated adiabatic calorimeter over the Temperature range from (78 to 370) K. A polynomial equation of the Heat capacities as a function of Temperature was fitted by a least-squares method. Smoothed Heat capacities and thermodynamic functions of the compound relative to the standard reference Temperature of 298.15 K were calculated and tabulated at intervals of 5 K based on the fitted polynomial equation. A reasonable thermochemical cycle was designed, and the standard molar enthalpies of dissolution of the reactants and products of the synthesis reaction in the selected solvent were measured by an isoperibol solution-reaction calorimeter. The enthalpy change of the reaction was calculated to be Delta H-r(m)o = (17.612 +/- 0.571) kJ.mol(-1) from the data of the standard molar enthalpies of dissolution. The standard molar enthalpy of formation of the title compund was determined to be Delta H-f(m)o {(NH3CH2CH2NH3)(2)[CoCl4]Cl-2, s} = (1499.54 +/- 2.73) kJ.mol(-1) in accordance with Hess's law.
Wei Han - One of the best experts on this subject based on the ideXlab platform.
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hybrid liquid desiccant air conditioning system combined with marine aerosol removal driven by Low Temperature Heat source
Applied Energy, 2020Co-Authors: Yuze Dai, Feng Liu, Jun Sui, Dandan Wang, Wei Han, Hongguang JinAbstract:Abstract The hot and humid air containing marine aerosols on tropical islands or coastal areas always leads to serious equipment corrosion and affects the living comfort of residents. Conventionally, an air-conditioning system can only provide cool dry air, and the marine aerosol removal process consumes expendable materials. To simplify the procedure and reduce the energy consumption, a novel hybrid air-conditioning system combined with marine aerosol removal is proposed in this paper. The novel system achieves multiple functions based on the characteristics of liquid-desiccant dehumidification and phase transitions of the ternary solution system, and it can be driven by a Low-Temperature Heat source. Simulation and thermodynamic analysis of the combined system are presented, and the results show that the humidity ratio of the supply air can reach 6.83 g/kg (dry air), with a Temperature of 21.14 °C. Compared with the conventional cooling dehumidification system utilizing vapor compression refrigeration driven by power, the power saving ratio (PSR) and the equivalent power generation efficiency (ηeq) of the proposed system can reach 93.11% and 9.8%, respectively. Further, exergy analyses are carried out, and the results show the air handling process of the novel system has a considerable energy saving potential. Besides, a crystallization experiment is conducted to verify the feasibility of the key NaCl separation process. Finally, economic analyses are carried out, which indicate that the novel system achieves competitive economic performance. This study provides a new hybrid air-conditioning technology for simultaneous cooling, dehumidification and marine aerosol removal by using Low-Temperature Heat.
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a two stage liquid desiccant dehumidification system by the cascade utilization of Low Temperature Heat for industrial applications
Applied Energy, 2017Co-Authors: Wei Han, Jun Sui, Hongguang JinAbstract:Abstract Cooling dehumidification driven by power is widely used in industrial processes to obtain dry air, but the main drawback is its large power consumption. In these processes, large amounts of Low-Temperature waste Heat are released to the environment directly, so there is a great energy-saving potential to recover Low-Temperature waste Heat and generate dry air. A new two-stage liquid desiccant dehumidification system with the cascade utilization of Low-Temperature Heat is proposed. The waste Heat is used in a cascade manner. The higher-Temperature Heat is used to generate a strong desiccant solution, which will be used in the first-stage dehumidifier. The Lower-Temperature Heat is used to drive a single-effect absorption refrigerator and provide cooling energy to the second-stage dehumidifier. Simulation results showed that the proposed system can reduce electricity consumption by 92.29% compared with the conventional cooling dehumidification system driven by power. The ratio of electricity savings to absorbed Heat can reach 7.35%. The advantage of the cascade utilization of the Low-Temperature Heat was further illuminated by studying the driving force in the dehumidifiers, and a preliminary economic and environmental analysis was performed. The increased initial investment can be recovered in only 3.39 years. Approximately 11,028 tons of standard coal are saved per year, and a reduction of 27,488 tons CO 2 can also be realized per year. Finally, a parametric sensitivity analysis was conducted to optimize the system performance. This study may provide a new method to perform dehumidification by efficiently using a Low-Temperature Heat source.
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a novel liquid desiccant dehumidification system driven by Low Temperature Heat for industrial application
Energy Procedia, 2017Co-Authors: Wei Han, Jun Sui, Hongguang JinAbstract:Abstract Cooling dehumidification driven by power is widely used in industrial process to obtain dry air, however, the main drawback is the large power consumption. At the same time, large amount of Low-Temperature waste Heat is released to environment directly. There is a great energy saving potential to recover Low-Temperature waste Heat and generate dry air. A novel two-stage liquid desiccant dehumidification system with cascade utilization of a Low-Temperature Heat is proposed. The waste Heat is used in a cascade way. The higher Temperature Heat is used to generate strong desiccant solution, which will be used in first stage dehumidifier. The Lower Temperature Heat is used to drive a single-effect absorption refrigerator and provide cooling energy to the second stage dehumidifier. Simulation results showed that the proposed system can save 96.17% electricity consumption, compared with the conventional cooling dehumidification system driven by power. The ratio of saving electricity and absorbed Heat can reach 6.67%. Furthermore, the advantage of cascade utilizing Low-Temperature Heat was elucidated by studying the driven force in the dehumidifiers. This study may provide a new way to perform dehumidification by efficiently using a Low-Temperature waste Heat.
Jun Sui - One of the best experts on this subject based on the ideXlab platform.
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hybrid liquid desiccant air conditioning system combined with marine aerosol removal driven by Low Temperature Heat source
Applied Energy, 2020Co-Authors: Yuze Dai, Feng Liu, Jun Sui, Dandan Wang, Wei Han, Hongguang JinAbstract:Abstract The hot and humid air containing marine aerosols on tropical islands or coastal areas always leads to serious equipment corrosion and affects the living comfort of residents. Conventionally, an air-conditioning system can only provide cool dry air, and the marine aerosol removal process consumes expendable materials. To simplify the procedure and reduce the energy consumption, a novel hybrid air-conditioning system combined with marine aerosol removal is proposed in this paper. The novel system achieves multiple functions based on the characteristics of liquid-desiccant dehumidification and phase transitions of the ternary solution system, and it can be driven by a Low-Temperature Heat source. Simulation and thermodynamic analysis of the combined system are presented, and the results show that the humidity ratio of the supply air can reach 6.83 g/kg (dry air), with a Temperature of 21.14 °C. Compared with the conventional cooling dehumidification system utilizing vapor compression refrigeration driven by power, the power saving ratio (PSR) and the equivalent power generation efficiency (ηeq) of the proposed system can reach 93.11% and 9.8%, respectively. Further, exergy analyses are carried out, and the results show the air handling process of the novel system has a considerable energy saving potential. Besides, a crystallization experiment is conducted to verify the feasibility of the key NaCl separation process. Finally, economic analyses are carried out, which indicate that the novel system achieves competitive economic performance. This study provides a new hybrid air-conditioning technology for simultaneous cooling, dehumidification and marine aerosol removal by using Low-Temperature Heat.
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a two stage liquid desiccant dehumidification system by the cascade utilization of Low Temperature Heat for industrial applications
Applied Energy, 2017Co-Authors: Wei Han, Jun Sui, Hongguang JinAbstract:Abstract Cooling dehumidification driven by power is widely used in industrial processes to obtain dry air, but the main drawback is its large power consumption. In these processes, large amounts of Low-Temperature waste Heat are released to the environment directly, so there is a great energy-saving potential to recover Low-Temperature waste Heat and generate dry air. A new two-stage liquid desiccant dehumidification system with the cascade utilization of Low-Temperature Heat is proposed. The waste Heat is used in a cascade manner. The higher-Temperature Heat is used to generate a strong desiccant solution, which will be used in the first-stage dehumidifier. The Lower-Temperature Heat is used to drive a single-effect absorption refrigerator and provide cooling energy to the second-stage dehumidifier. Simulation results showed that the proposed system can reduce electricity consumption by 92.29% compared with the conventional cooling dehumidification system driven by power. The ratio of electricity savings to absorbed Heat can reach 7.35%. The advantage of the cascade utilization of the Low-Temperature Heat was further illuminated by studying the driving force in the dehumidifiers, and a preliminary economic and environmental analysis was performed. The increased initial investment can be recovered in only 3.39 years. Approximately 11,028 tons of standard coal are saved per year, and a reduction of 27,488 tons CO 2 can also be realized per year. Finally, a parametric sensitivity analysis was conducted to optimize the system performance. This study may provide a new method to perform dehumidification by efficiently using a Low-Temperature Heat source.
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a novel liquid desiccant dehumidification system driven by Low Temperature Heat for industrial application
Energy Procedia, 2017Co-Authors: Wei Han, Jun Sui, Hongguang JinAbstract:Abstract Cooling dehumidification driven by power is widely used in industrial process to obtain dry air, however, the main drawback is the large power consumption. At the same time, large amount of Low-Temperature waste Heat is released to environment directly. There is a great energy saving potential to recover Low-Temperature waste Heat and generate dry air. A novel two-stage liquid desiccant dehumidification system with cascade utilization of a Low-Temperature Heat is proposed. The waste Heat is used in a cascade way. The higher Temperature Heat is used to generate strong desiccant solution, which will be used in first stage dehumidifier. The Lower Temperature Heat is used to drive a single-effect absorption refrigerator and provide cooling energy to the second stage dehumidifier. Simulation results showed that the proposed system can save 96.17% electricity consumption, compared with the conventional cooling dehumidification system driven by power. The ratio of saving electricity and absorbed Heat can reach 6.67%. Furthermore, the advantage of cascade utilizing Low-Temperature Heat was elucidated by studying the driven force in the dehumidifiers. This study may provide a new way to perform dehumidification by efficiently using a Low-Temperature waste Heat.
Bosheng Su - One of the best experts on this subject based on the ideXlab platform.
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feasibility of a two stage liquid desiccant dehumidification system driven by Low Temperature Heat and power
Applied Thermal Engineering, 2018Co-Authors: Bosheng SuAbstract:Abstract Liquid-desiccant dehumidification technology is a promising way to take advantage of Low-grade energy to dry air for air conditioning and industrial applications. This paper proposed a two-stage liquid-desiccant dehumidification system driven by Low-Temperature Heat and electric power, which is integrated with a vapor compression refrigeration system that performs deep dehumidification. Air moisture is preliminarily removed by the desiccant solution at environmental Temperature in a first-stage dehumidifier and then deeply removed by the desiccant solution cooled to 18 °C by a vapor compression refrigerator. Simulation results show that the new system can decrease power consumption by 30.63% compared with a conventional cooling dehumidification system. The equivalent power-generation efficiency of the proposed system can reach 2.91%. Finally, the power-saving mechanism of the proposed system was illuminated by conducting the exergy analysis and the study of the surface vapor partial-pressure difference in the liquid desiccant dehumidifiers.
