Article
Construction & Building Technology
Tomas Venegas, Ming Qu, Lingshi Wang, Xiaobing Liu, Kyle Gluesenkamp, Zhiming Gao
Summary: Vapor Compression Systems (VCS) are the most common air conditioning technology, while Liquid Desiccant Dehumidification (LDD) is a potentially energy-efficient air conditioning. In the past, LDD systems required high concentrations of liquid desiccant for dehumidification, leading to high energy consumption. In recent years, researchers have coupled a heat pump with LDD systems, allowing them to operate at lower concentrations and temperatures, thus improving efficiency.
ENERGY AND BUILDINGS
(2023)
Article
Thermodynamics
Sampath Suranjan Salins, S. V. Kota Reddy, Shiva Kumar
Summary: Liquid desiccant technology offers advantages such as high thermal coefficient of performance, easy storage, and lower regeneration temperature. This paper presents the design and fabrication of a multistage reciprocating desiccant dehumidification system integrated with a conventional vapour compression cycle. Experimental evaluation of the system's performance parameters and regenerator performance provides valuable insights.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2022)
Article
Construction & Building Technology
Mohammad Salikandi, Benyamin Ranjbar, Elahe Shirkhan, S. Shanmuga Priya, I. Thirunavukkarasu, K. Sudhakar
Summary: This paper examines the application of liquid desiccants in air conditioning systems, covering materials, properties, operating conditions, desiccant dehumidifiers, and performance enhancements. Additionally, it discusses the impact of liquid desiccant systems on indoor air quality and different regeneration methods, providing guidance for designing and operating building air conditioning systems based on liquid desiccants.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Thermodynamics
Sarah Moussaddy, Sandeep Aryal, Jonathan Maisonneuve
Summary: This study evaluates the energy efficiency of a novel dehumidification concept that uses cold concentrated fertilizer solution as a liquid desiccant agent. The results show that this method is more efficient than other dehumidification technologies on the market and satisfies new energy efficiency standards for indoor plant cultivation. The study also finds that controlling the liquid desiccant temperature is critical to achieving high dehumidification rates.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Felix Hochwallner, Christoph Reichl, Johann Emhofer
Summary: Liquid desiccant falling film absorbers are an efficient solution for humidity control and dehumidification. This study presents a simplified one-dimensional model and compares it to a more detailed three-dimensional computational fluid dynamics (CFD) model. Both models accurately capture the heat and mass transfer mechanisms of falling films and airflow in cold store applications. The simplified model is over 400 times faster than the detailed model, while still maintaining good accuracy. It is a valuable tool for the design and optimization of liquid desiccant systems.
APPLIED THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Sarah Moussaddy, Sancheyan Pushparajah, Jonathan Maisonneuve
Summary: This paper introduces the concept of using concentrated fertilizer as a liquid desiccant for energy efficient water recovery and dehumidification of indoor plant environments. The experimental results show that various common fertilizers can be used for such applications, and the temperature of the liquid desiccant is a critical variable.
APPLIED THERMAL ENGINEERING
(2023)
Article
Thermodynamics
P. Pasqualin, P. A. Davies
Summary: This study proposes a novel multi-stage nanofiltration system as a regeneration method for liquid desiccant air conditioning in order to achieve greenhouse cooling and irrigation in a closed water cycle. The study shows that the multi-stage NF regenerator can recover a significant amount of water and achieve high COP, improving greatly on conventional LDAC systems. It has the potential to cool greenhouses in hot climates where crop production is challenging during summer.
APPLIED THERMAL ENGINEERING
(2022)
Article
Thermodynamics
Kamal Kumar Ghosh, Chandrakant R. Sonawane, Anand Pandey, Hitesh Panchal, A. S. El-Shafay, Ahmed Mohamed Mahmoud Ibrahim, Mohammad S. Alsoufi, Ammar Elsheikh
Summary: Heat driven sorption technologies are promising alternatives to traditional vapour compression systems for comfort cooling, with liquid desiccant-based cooling systems being preferred for high latent heat load applications. Experimental investigation of an indirect contact type liquid desiccant cooling system showed that optimizing the inlet air and desiccant solution parameters is crucial for achieving the highest possible latent heat effectiveness in the cooling system.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Energy & Fuels
Jean Paul Harrouz, Kamel Ghali, Khoudor Keniar, Nesreen Ghaddar
Summary: Indoor humidity management is a challenging task, particularly in hot and humid climates, and requires a significant amount of energy. This study proposes a new method using desiccants to remove water vapor from indoor air. By utilizing thermosyphon and membrane technology, this system can sustainably regulate humidity between different areas. Mathematical models were developed and validated, and it was found that the system can effectively move moisture from high to low humidity areas under various climatic conditions. The required heat input is dependent on the membrane area and varies between 150 W to 570 W.
Article
Thermodynamics
Masoud Ahmadi, Behnam Ahmadi, Sajjad Bigham
Summary: This study focuses on altering the capillary forces and wickability effect of textured air dehumidifier surfaces to minimize the liquid-desiccant flow rate and improve moisture removal rate and dehumidification energy efficiency.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Thermodynamics
Guangkai Zhang, Jingchao Xie, Ying Ji, Boyao Du, Honggang Liu, Jiaping Liu
Summary: This study investigates the performance of a liquid desiccant dehumidification system with a solution recirculation structure under various operating conditions. It proposes a new evaluation index called the matching rate and conducts a parameterized study and optimization of the system's performance. The results provide recommendations for different solution recirculation ratios based on cooling capacity requirements.
APPLIED THERMAL ENGINEERING
(2024)
Review
Engineering, Chemical
York Castillo Santiago, Bruno Gomes Nunes, Geovani Souza Fontana, Daiane Busanello, Alexandre Fernandes Santos, Samuel Moreira Duarte Santos, Estefania Neiva de Mello, Leandro A. Sphaier
Summary: This paper reviews the importance of desiccant dehumidification technologies for improving air quality, focusing on their applications in the Brazilian context. The principles and types of desiccant wheels are evaluated, along with the existing selection software. The study highlights the need for operation analysis for specific periods and the development of computational tools for selecting desiccant wheels.
Article
Thermodynamics
Bowen Cao, Yonggao Yin, Guoying Xu, Wenzhang Li, Suzhou Dai, Wanhe Chen, Qiang Ji, Fan Zhang
Summary: Conventional liquid desiccant dehumidification is limited by corrosion and crystallization, and expanding the humidity adjustment range and avoiding corrosion are necessary. Ionic liquids (ILs) with deep dehumidification potential and bubble absorption-based mode can be a promising alternative. This study investigates bubble absorption-based deep dehumidification using IL (BADD-IL) and establishes a heat and mass transfer mathematical model for BADD-IL. Experimental examination of a bubble column dehumidifier using the novel IL under different conditions shows that the deep dehumidification performance is strongly affected by operating parameters. The study clarifies the heat and mass transfer mechanism of BADD-IL and provides guidance for the development of ILs deep dehumidification technology.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Thermodynamics
Md Sazan Rahman, Jingjing Han, Gaoming Ge, Md Shamim Ahamed, Huiqing Guo
Summary: Selecting the best dehumidifier for greenhouse growers is challenging due to high costs, emerging technologies, and variations in crop species, weather climate, and greenhouse sizes. This study compared the field performance of a newly developed state point liquid desiccant dehumidifier with two other commercial dehumidification technologies in ornamental and tomato greenhouses. The results showed that no single dehumidification technique was both technically effective and cost-saving year-round, highlighting the importance of combining low-cost technologies with internal dehumidification technology in cold regions.
APPLIED THERMAL ENGINEERING
(2023)
Review
Thermodynamics
A. Gurubalan, J. Carey Simonson
Summary: Liquid desiccant air conditioning systems are an efficient alternative to conventional systems, but further research is needed to address practical challenges and improve their performance in real-world applications.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Thermodynamics
Nasruddin, S. Sholahudin, N. Giannetti, Arnas
APPLIED THERMAL ENGINEERING
(2016)
Article
Thermodynamics
Niccolo Giannetti, Andrea Rocchetti, Arnas Lubis, Kiyoshi Saito, Seiichi Yamaguchi
APPLIED THERMAL ENGINEERING
(2016)
Article
Green & Sustainable Science & Technology
Arnas Lubis, Jongsoo Jeong, Kiyoshi Saito, Niccolo Giannetti, Hajime Yabase, Muhammad Idrus Alhamid, Nasruddin
Article
Thermodynamics
Arnas Lubis, Niccolo Giannetti, Seiichi Yamaguchi, Kiyoshi Saito, Naoyuki Inoue
ENERGY CONVERSION AND MANAGEMENT
(2017)
Article
Energy & Fuels
Arnas Lubis, Jongsoo Jeong, Niccolo Giannetti, Seiichi Yamaguchi, Kiyoshi Saito, Hajime Yabase, Muhammad Alhamid, Nasruddin
Article
Construction & Building Technology
Jongsoo Jeong, Arnas Lubis, Kiyoshi Saito, Sarngwoo Karng, Seoyoung Kim, Kwangho Kim
ENERGY AND BUILDINGS
(2018)
Article
Thermodynamics
M. Alhamid, Alberto Coronas, Arnas Lubis, Dereje S. Ayou, Nasruddin, Kiyoshi Saito, Hajime Yabase
APPLIED THERMAL ENGINEERING
(2020)
Article
Thermodynamics
T. K. Berkah Fajar, P. Restu Bagas, S. Ukhi, M. Alhamid, Arnas Lubis
CASE STUDIES IN THERMAL ENGINEERING
(2020)
Article
Thermodynamics
Arnas Lubis, Niccolo Giannetti, Muhammad I. Alhamid, Kiyoshi Saito, Hajime Yabase
Summary: This paper presents a numerical model for the dynamic analysis and control of a solar-assisted single-double-effect absorption chiller. The model is validated and used to develop an effective operating strategy for reducing energy consumption without compromising cooling output capacity.
APPLIED THERMAL ENGINEERING
(2023)
Review
Construction & Building Technology
Hong Yee Kek, Syahmi Bazlisyam Mohd Saupi, Huiyi Tan, Mohd Hafiz Dzarfan Othman, Bemgba Bevan Nyakuma, Pei Sean Goh, Wahid Ali Hamood Altowayti, Adeb Qaid, Nur Haliza Abdul Wahab, Chia Hau Lee, Arnas Lubis, Syie Luing Wong, Keng Yinn Wong
Summary: The prevalence and transmission of airborne infections present significant challenges to public health. Ventilation strategies play a crucial role in mitigating airborne infections in healthcare settings and preventing the spread of infectious diseases, safeguarding patients and healthcare workers. However, a comprehensive overview of the current state of knowledge regarding ventilation in healthcare settings is lacking. Therefore, this study aims to bridge this gap by conducting a review and bibliometric analysis of 198 papers published from 1993 to 2022. The findings will contribute to the development of effective guidelines for controlling airborne infections.
ENERGY AND BUILDINGS
(2023)
Article
Engineering, Multidisciplinary
Muhammad Idrus Alhamid, Nyayu Aisyah, Nasruddin, Arnas Lubis
INTERNATIONAL JOURNAL OF TECHNOLOGY
(2019)
Article
Thermodynamics
M. Idrus Alhamid, Nasruddin, Arnas Lubis, Kiyoshi Saito, Hajime Yabase, Nyayu Aisyah
INTERNATIONAL JOURNAL OF AIR-CONDITIONING AND REFRIGERATION
(2019)
Article
Thermodynamics
Nasruddin, Nyayu Aisyah, M. Alhamid, Bidyut B. Saha, S. Sholahudin, Arnas Lubis
CASE STUDIES IN THERMAL ENGINEERING
(2019)
Article
Engineering, Multidisciplinary
Hajime Yabase, Kiyoshi Saito, Arnas Lubis, Idrus Alhamid, Nasruddin
INTERNATIONAL JOURNAL OF TECHNOLOGY
(2016)