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Articles 31 - 35 of 35
Full-Text Articles in Engineering
Investigation On Solar Assisted Liquid Desiccant Dehumidifier And Evaporative Cooling System For Fresh Air Treatment., Yi Chen, Hongxing Yang, Yimo Luo
Investigation On Solar Assisted Liquid Desiccant Dehumidifier And Evaporative Cooling System For Fresh Air Treatment., Yi Chen, Hongxing Yang, Yimo Luo
Faculty of Science & Technology (THEi)
The widely used semi-centralized air conditioning (A/C) system consisting of independent fresh air system and fan coil system suffers from huge energy consumption, especially for fresh air treatment. Therefore, a liquid desiccant dehumidifier and regenerative indirect evaporative cooling (LDD-RIEC) system is proposed for fresh air treatment. The fresh air is handled by the LDD-RIEC system in which no electricity-intensive compressor involves. The hot and humid fresh air is firstly dehumidified by LDD and then sensibly cooled by RIEC. The thermal energy captured by solar collectors is used for desiccant solution regeneration. Indoor return air is cooled by fan coils of …
Investigation On The Regeneration And Corrosion Characteristics Of An Anodized Aluminum Plate Regenerator., Tao Wen, Lin Lu, Hongxing Yang, Yimo Luo
Investigation On The Regeneration And Corrosion Characteristics Of An Anodized Aluminum Plate Regenerator., Tao Wen, Lin Lu, Hongxing Yang, Yimo Luo
Faculty of Science & Technology (THEi)
The traditional vapor compression cooling system (VCS) has been criticized for its heavy reliance on electricity consumption and limited control ability of humidity. Compared with the VCS, the liquid desiccant cooling system (LDCS) is more efficient by handling the sensible and latent load separately. The present study investigated the regeneration and corrosion characteristics of an anodized aluminum plate regenerator for the first time. Comparative tests were conducted to present the regeneration and corrosion characteristics of the normal and anodized regenerator. The influence of internal heating on the regeneration performance was also identified. The results showed that the corrosion rate was …
Investigation On The Regeneration Performance Of Liquid Desiccant By Adding Surfactant Pvp-K30., Tao Wen, Lin Lu, Chuanshuai Dong, Yimo Luo
Investigation On The Regeneration Performance Of Liquid Desiccant By Adding Surfactant Pvp-K30., Tao Wen, Lin Lu, Chuanshuai Dong, Yimo Luo
Faculty of Science & Technology (THEi)
The liquid desiccant cooling system (LDCS) is a promising alternative for the conventional vapor compression system due to its high energy efficiency. To enhance the mass transfer between the regeneration air and liquid desiccant in the regenerator, the paper firstly introduced a kind of surfactant called polyvinyl pyrrolidone (PVP-K30) which was added into the LiCl solution for better desiccant regeneration performance. The falling film characteristics and regeneration performance were investigated and compared with and without surfactant. The results indicated that the contact angle of desiccant solution on plate decreased from 58.5° to 28.0° by adding surfactant with 0.4% of concentration. …
Development And Experimental Study Of A Novel Plate Dehumidifier Made Of Anodized Aluminum., Tao Wen, Lin Lu, Chuanshuai Dong, Yimo Luo
Development And Experimental Study Of A Novel Plate Dehumidifier Made Of Anodized Aluminum., Tao Wen, Lin Lu, Chuanshuai Dong, Yimo Luo
Faculty of Science & Technology (THEi)
The falling film dehumidifier is a key component in the liquid desiccant cooling system (LDCS). However, the most commonly used metals, such as steel and aluminum, can hardly resist the erosion of liquid desiccant. It greatly limits the fabrication of compact dehumidifiers and hinders the promotion of LDCS. The present study introduced a novel falling film dehumidifier which was made by the metal of anodized aluminum. Experiments were carried out to compare the dehumidification performance between ordinary aluminum dehumidifier and anodized one. The influences of air temperature, mass flow rate, inlet humidity and solution temperature, mass flow rate, temperature on …
Experimental Study Of A Novel Subcooling Method Based On Liquid Desiccant Dehumidification For Vapor-Compression Refrigeration Systems., Xiaohui She, Yonggao Yin, Yimo Luo, Lindeman Brett, Dan Zhong, Xiaosong Zhang
Experimental Study Of A Novel Subcooling Method Based On Liquid Desiccant Dehumidification For Vapor-Compression Refrigeration Systems., Xiaohui She, Yonggao Yin, Yimo Luo, Lindeman Brett, Dan Zhong, Xiaosong Zhang
Faculty of Science & Technology (THEi)
Refrigerant subcooling could increase the refrigerating capacity and potentially improve the performance of refrigeration systems. In this paper, a novel subcooling method is experimentally studied for the first time in a hybrid vapor compression refrigeration system. In this system, condensation heat (~40 °C) is used to drive an integrated subcooling cycle to subcool the refrigerant leaving the condenser, which significantly increases the system performance. Changes in system performance are measured as functions of the following variables: the mass flow rates of the dehumidification air, ambient air, dehumidification solution, regeneration solution, and spraying water. Comparisons are made between the proposed system …