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A modified zone model for estimating equivalent room thermal capacity

Hua CHEN, Xiaolin WANG

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 351-357 doi: 10.1007/s11708-013-0254-x

Abstract: The zone model has been widely applied in control analysis of heating, ventilation and air conditioning(HVAC) systems to achieve a high building efficiency.This paper proposed a modified zone model which is much simpler in the HVAC system simulation and hasthe similar accuracy to the complicated simulation model.The proposed model can then make the HVAC system dynamic simulation much faster and more acceptable for

Keywords： room model     thermal network analysis     transfer function     heating     ventilation and air conditioning (HVAC)system simulation    

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A concept of capillary active, dynamic insulation integrated with heating, cooling and ventilation, airconditioning system

Mark BOMBERG

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 4,   Pages 431-437 doi: 10.1007/s11709-010-0071-9

Abstract: ade needs to be preserved or when the seismic considerations favor use of a concrete wall system andThis happens when such insulation is integrated with heating, cooling and ventilation, air conditioning(HVAC) system.where improvement of indoor climate in exposed coastal areas is needed), China (indoor climate in non-air

Keywords： capillary active insulation     integrated heating     cooling and ventilation     air conditioning (HVAC) and building    

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Experimental investigation on desiccant air-conditioning system in India

Vijay MITTAL, B. Kant KHAN,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 161-165 doi: 10.1007/s11708-009-0070-5

Abstract: investigation in India was presented to evaluate the performance and energy saving capacity of a desiccant air-conditioningsystem composed of a silica gel bed, a split type air-conditioner (1.0 ton refrigeration) installedThe experiment was made in such a way that the percentages of return air, outdoor air and indoor airThe optimum percentages of air ratios were as follows: 10% of outdoor air, 10% of return air (mixed togetherAs expected, simple economic analysis indicates that the desiccant air-conditioning is not viable for

Keywords： air ratios     ambient conditions     desiccant air-conditioning     silica gel    

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Investigation on regeneration and energy storage characteristics of a solar liquid desiccant air-conditioningsystem

SHI Mingheng, DU Bin, ZHAO Yun

Frontiers in Energy 2007, Volume 1, Issue 1,   Pages 85-90 doi: 10.1007/s11708-007-0008-8

Abstract: Solar liquid desiccant air-conditioner is a new air-conditioning system in which liquid desiccant canA principal solar liquid desiccant air-conditioning system under energy storage operating mode is proposed

Keywords： desiccant air-conditioning     regeneration process     air-conditioning system     energy     regeneration    

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Engine-driven hybrid air-conditioning system

Chaokui QIN , Hongmei LU , Xiong LIU , Gerhard SCHMITZ ,

Frontiers in Energy 2009, Volume 3, Issue 1,   Pages 109-116 doi: 10.1007/s11708-009-0003-3

Abstract: A hybrid air-conditioning system that combines an engine-driven chiller with desiccant dehumidificationunder present electricity/gas price ratio, more than 40% of operation cost can be saved by the hybrid system

Keywords： engine-driven chiller     desiccant wheel     hybrid air-conditioning system     energy consumption    

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New developments in mobile air conditioning systems in China

Jiangping CHEN, Yu ZHAO, Zhaogang QI

Frontiers in Energy 2011, Volume 5, Issue 1,   Pages 53-58 doi: 10.1007/s11708-010-0137-3

Abstract: Global warming poses serious global concerns, and the mobile air conditioning (MAC) industry must beIn this paper, the development of the MAC system and components for new energy vehicles, low global warming

Keywords： global warming potential     mobile air conditioning (MAC)     energy saving     new developments    

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Experimental investigation on oil-gas separator of air-conditioning systems

Dianbo XIN,Shuliang HUANG,Song YIN,Yuping DENG,Wenqiang ZHANG

Frontiers in Energy 2019, Volume 13, Issue 2,   Pages 411-416 doi: 10.1007/s11708-017-0447-9

Abstract: The oil-return system plays an important role in the variable refrigerant flow (VRF) systems becauseThe oil-gas separator is the most essential component of the oil-return system, and the separation efficiencycomparing the mass fraction of oil to refrigerant before and after the separator was connected to the system

Keywords： variable refrigerant flow system     oil-gas separator     separation efficiency    

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Study on Air Age and Evaluation of Ventilation Validity of Heading Face

Wang Haiqiao,Tian Feng,Huang Junxin,Chen Tao

Strategic Study of CAE 2007, Volume 9, Issue 11,   Pages 43-47

Abstract:  Tracer gas method was used to menstruate the average air age,  and numerical simulation hasbeen used to calculate the ventilation airfield of restricted wall-attached jet and average air ageof heading face,  and elicit ventilation flow field and distributing of average air age of heading Based on them,  relations between the air age and ventilation flow field,  ventilationvalidity are analyzed,  and the mathematical model of air exchange efficiency and ventilation efficiency

Keywords： heading face     average air age     ventilation validity     air exchange efficiency     ventilation efficiency    

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Research progress in liquid desiccant air-conditioning devices and systems

Xiaohua LIU, Yi JIANG, Shuanqiang LIU, Xiaoyang CHEN,

Frontiers in Energy 2010, Volume 4, Issue 1,   Pages 55-65 doi: 10.1007/s11708-009-0082-1

Abstract: The developments on liquid desiccant air-conditioning systems were illustrated and summarized in thisand total heat recovery device, which could be combined to set up various kinds of liquid desiccant airThe operating principle of heat pump-driven outdoor air processor as well as heat-driven outdoor airThe liquid desiccant air processor-based temperature and humidity-independent control air-conditioningsystem could save 20%–30% operating energy compared with the conventional air-conditioning system

Keywords： liquid desiccant     heat and mass transfer     performance     air-conditioning    

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A Fuzzy Controller With Self-Optimizing Parameters and Its Application in the Central Air-conditioningSystem

Wu Aiguo,Du Chunyan,Song Xiaoqiang

Strategic Study of CAE 2004, Volume 6, Issue 11,   Pages 84-87

Abstract:

On the basis of analyzing characteristics of the central air-conditioning system, a fuzzy controllerwith self-optimizing parameters is proposed and applied into the temperature control of the system.To deal with the non-linearity, time delay and time variation of the controlled system, a method for

Keywords： central air-conditioning system     temperature control     fuzzy controller     parameter optimization    

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The Research of Air Quality and Its Control in Air-conditioning Room

Zou Shenghua,Li Qiang,Yu Meichun,Yang Jinghua

Strategic Study of CAE 2007, Volume 9, Issue 3,   Pages 82-86

Abstract:

The influence of outside air and return air on the IAQ in a typi calair-conditioning room is analyzed.a direct effect on the IAQ, and the return air produces secondary pollutes.The theoretical formula about outside air, return air and the contaminant is induced.The simulation results show that controlling the outside air volume by contaminant mass fractin (CO

Keywords： indoor air quality     mass fraction of contaminant     outside air volume     control     simulation    

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Application of Zero Equation Turbulence Model for Numerical Simulation of Air Distribution in Train Compartment

Yang Peizhi,Gu Xiaosong

Strategic Study of CAE 2006, Volume 8, Issue 1,   Pages 26-29

Abstract:

It will cost much time for numerical simulation of air distribution in train compartment using k -paper, zero equation turbulence model and k - ε turbulence model were applied for numerical simulationmodel has the merit of simpleness and quickness, it will provide a simple and convenient numerical simulationmethod for the design of train air-conditioning system.

Keywords： air-conditioning     zero equation turbulence model     numerical simulation     train    

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A small-scale silica gel-water adsorption system for domestic air conditioning and water heating by the

Y. YU, Q. W. PAN, L. W. WANG

Frontiers in Energy 2020, Volume 14, Issue 2,   Pages 328-336 doi: 10.1007/s11708-019-0623-1

Abstract: A small-scale silica gel-water adsorption system with modular adsorber, which utilizes solar energy toachieve the cogeneration of domestic air conditioning and water heating effect, is proposed and investigatedFirst, the adsorption system is tested under different modes (different mass recovery, heat recovery,the condition of cooling water temperature of 35°C, the obtained maximum COP , COP , and SCP of the system

Keywords： silica gel-water     heat and mass recovery     solar energy     domestic cooling and heating    

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A logic-based controller for the mitigation of ventilation air methane in a catalytic flow reversal reactor

Zhikai LI, Zhangfeng QIN, Yagang ZHANG, Zhiwei WU, Hui WANG, Shuna LI, Mei DONG, Weibin FAN, Jianguo WANG

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 3,   Pages 347-356 doi: 10.1007/s11705-013-1347-0

Abstract: The control system of a catalytic flow reversal reactor (CFRR) for the mitigation of ventilation airThe simulation results indicated that the controller developed in this work performs well under normalAir dilution and auxiliary methane injection are effective to avoid the catalyst overheating and reactionAir dilution exhibits the effects of two contradictory aspects on the operation of CFRR, i.e., cooling

Keywords： ventilation air methane     reverse flow reactor     lean methane combustion     logic-based controller     mathematical    

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Simulation Research of Temperature Control System in Air-Conditioned Coach

Yu Meichun,Zhang Dengchun

Strategic Study of CAE 2006, Volume 8, Issue 7,   Pages 83-88

Abstract:

The issue studies, in virtue of simulation, temperature control system in air-conditioned coach byThe simulation results show that PID control can eliminates steady-state error, but the overtune is bigAnd PID control can only suit for air conditioning condition with small variation.

Keywords： air-conditioned coach     temperature control     fuzzy control     simulation    

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Title Author Date Type Operation

A modified zone model for estimating equivalent room thermal capacity

Hua CHEN, Xiaolin WANG

Journal Article

A concept of capillary active, dynamic insulation integrated with heating, cooling and ventilation, airconditioning system

Mark BOMBERG

Journal Article

Experimental investigation on desiccant air-conditioning system in India

Vijay MITTAL, B. Kant KHAN,

Journal Article

Investigation on regeneration and energy storage characteristics of a solar liquid desiccant air-conditioningsystem

SHI Mingheng, DU Bin, ZHAO Yun

Journal Article

Engine-driven hybrid air-conditioning system

Chaokui QIN , Hongmei LU , Xiong LIU , Gerhard SCHMITZ ,

Journal Article

New developments in mobile air conditioning systems in China

Jiangping CHEN, Yu ZHAO, Zhaogang QI

Journal Article

Experimental investigation on oil-gas separator of air-conditioning systems

Dianbo XIN,Shuliang HUANG,Song YIN,Yuping DENG,Wenqiang ZHANG

Journal Article

Study on Air Age and Evaluation of Ventilation Validity of Heading Face

Wang Haiqiao,Tian Feng,Huang Junxin,Chen Tao

Journal Article

Research progress in liquid desiccant air-conditioning devices and systems

Xiaohua LIU, Yi JIANG, Shuanqiang LIU, Xiaoyang CHEN,

Journal Article

A Fuzzy Controller With Self-Optimizing Parameters and Its Application in the Central Air-conditioningSystem

Wu Aiguo,Du Chunyan,Song Xiaoqiang

Journal Article

The Research of Air Quality and Its Control in Air-conditioning Room

Zou Shenghua,Li Qiang,Yu Meichun,Yang Jinghua

Journal Article

Application of Zero Equation Turbulence Model for Numerical Simulation of Air Distribution in Train Compartment

Yang Peizhi,Gu Xiaosong

Journal Article

A small-scale silica gel-water adsorption system for domestic air conditioning and water heating by the

Y. YU, Q. W. PAN, L. W. WANG

Journal Article

A logic-based controller for the mitigation of ventilation air methane in a catalytic flow reversal reactor

Zhikai LI, Zhangfeng QIN, Yagang ZHANG, Zhiwei WU, Hui WANG, Shuna LI, Mei DONG, Weibin FAN, Jianguo WANG

Journal Article

Simulation Research of Temperature Control System in Air-Conditioned Coach

Yu Meichun,Zhang Dengchun

Journal Article