Review
Green & Sustainable Science & Technology
D. C. Gao, Y. J. Sun, Z. Ma, H. Ren
Summary: This study provides a systematic review on the latest developments in DAC system integration and design, focusing on improvements in overall performance. It covers typical DAC system configurations, integration approaches, configuration improvements, and design and control optimizations. Discussions and recommendations based on the latest DAC system developments aim to address pressing issues and outstanding problems for further performance enhancements.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Green & Sustainable Science & Technology
Bowen Guan, Xiaohua Liu, Tao Zhang
Summary: The use of a novel segmented liquid desiccant air-conditioning system in paint booths can significantly reduce energy consumption and increase energy efficiency. This study provides valuable insights for energy-efficient air-conditioning system design in spray-paint booths.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Construction & Building Technology
Dongxu Wu, Yuanzhi Gao, Hongshuo Qu, Changling Wang, Zhaofeng Dai, Xiaosong Zhang
Summary: Liquid desiccant air-conditioning (LDAC) systems are a promising alternative to conventional air conditioning systems due to their high energy efficiency. This study investigates the regeneration performance of a novel method inspired by solar heat localization for seawater desalination. By fabricating wood-based regenerators and utilizing the solar interfacial regeneration method, efficient regeneration of liquid desiccant is achieved. The results show that the solar interfacial method significantly improves the regeneration rate compared to traditional methods at the same temperature.
ENERGY AND BUILDINGS
(2022)
Article
Thermodynamics
Mrinal Jagirdar, Poh Seng Lee, Johan T. Padding
Summary: This study introduces equations and calculation methods for internally cooled and heated desiccant-coated heat and mass exchangers (ICHDHMX) and demonstrates through simulations that ICHDHMX can operate efficiently at low regeneration temperatures, making it suitable for various conditions in warm and humid weather.
APPLIED THERMAL ENGINEERING
(2021)
Article
Construction & Building Technology
Bowen Guan, Tao Zhang, Xiaohua Liu
Summary: The study shows that using LDAC system in laboratory animal rooms can save a considerable amount of energy, with a higher COPsys value compared to conventional systems. LDAC system can achieve an electric power saving rate of 37.3% during the entire cooling season and is beneficial for particulate matter filtration.
ENERGY AND BUILDINGS
(2021)
Article
Energy & Fuels
Chenjiyu Liang, Xianting Li, Gonghang Zheng
Summary: Traditional air conditioning systems have low efficiency due to uniform treatment of all heat loads. A new method of designing air conditioning systems has been proposed to improve energy utilization, reduce energy consumption of electric heat pump systems, and enhance the use of natural and waste cooling and heating sources.
Article
Energy & Fuels
Chenjiyu Liang, Xianting Li, Gonghang Zheng
Summary: This study proposes a more energy-efficient air conditioning system design method by defining humidity grades and developing a method to convert humidity grades to temperature grades. Through a case study, it is found that the system designed using this method can significantly improve the energy-saving rates for heat pumps.
Article
Thermodynamics
Jielin Luo, Hongxing Yang
Summary: This paper investigates the application of a new type of deep eutectic solvent, ethaline, in liquid desiccant air-conditioning system. The results show that ethaline has high performance with a coefficient of performance of 1.406 and an exergy efficiency of 32.65% under the condition of 35 degrees C ambient temperature and 80% relative humidity. Compared with conventional condensation dehumidification air-conditioning system, it can reduce 52.36% CO2 emissions. Ethaline's advantages lie in its non-toxicity, low price, and low corrosiveness.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Thermodynamics
Jae-Hee Lee, Jae-Weon Jeong
Summary: A compact heat-pump-driven liquid-desiccant air-conditioning unit for residential buildings was proposed and constructed to validate its energy and air-conditioning performance experimentally. The research showed that the system consistently maintained the target supply-air temperature and humidity, achieved good energy efficiency ratio, and met the minimum efficiency requirements. Therefore, the proposed system has great application potential for residential buildings in terms of operating and energy performance.
APPLIED THERMAL ENGINEERING
(2021)
Article
Thermodynamics
P. K. S. Tejes, Gaurav Priyadarshi, B. Kiran Naik
Summary: In this study, a novel integral technique based on simplified polynomial equations is developed to evaluate the performance of a hollow fiber membrane-based liquid desiccant dehumidifier for drying applications. The study finds that a high liquid to gas ratio, desiccant temperature, and specific humidity enhance the performance of the dehumidifier.
APPLIED THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Mahmoud Badawy Elsheniti, Ahmed Shehata, Abd El-Hamid Attia, Wael El-Maghlany
Summary: In order to improve indoor air quality in high moisture removal applications, the use of liquid-to-air membrane energy exchangers (LAMEEs) in liquid desiccant (LD) air-conditioning systems has been suggested. This study introduces a novel configuration for a heat pump LD system to enhance dehumidification and energy use. By embedding the evaporator and condenser coils of the heat pump in the LD channels of two LAMEEs, the system achieves efficient regeneration and temperature control.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Review
Energy & Fuels
Wei Su, Zhifei Lu, Xiaohui She, Junming Zhou, Feng Wang, Bo Sun, Xiaosong Zhang
Summary: This review provides an overview of the application and development of liquid desiccant regeneration in LDAC systems. It introduces the operating principles and evaluation indexes of liquid desiccant cooling systems, and focuses on the development of liquid desiccant materials and regenerators. It summarizes the current state of liquid desiccant regeneration systems and enhancement technologies, and discusses future needs and recommendations.
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)
Article
Green & Sustainable Science & Technology
Mohamed Abdelgaied, Mohamed A. Saber, M. M. Bassuoni, Ahmad M. Khaira
Summary: The displayed experimental investigation aims to design and fabricate a high-efficient desiccant air conditioner that achieves sustainable development by protecting the environment from harmful emissions, achieving thermal comfort conditions, and rationalizing energy consumption. The innovative desiccant dehumidifiers and energy recovery unit were incorporated to improve air dehumidification capacity and minimize power consumption. The results showed that the suggested ultra-efficient desiccant air conditioner achieved thermal comfort conditions, with average temperature and humidity ratio ranging between 11.9-14.6 degrees C and 6.89-8.9 gw/kgda, respectively. The proposed desiccant air conditioner also had high efficiency, with average values of thermal coefficient of performance and electrical coefficient of performance reaching 3.68 and 3.79, respectively, and an average saving in thermal energy between 21.9-28%.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Construction & Building Technology
Bowen Guan, Xiaohua Liu, Tao Zhang
Summary: A hybrid liquid-desiccant air-conditioning (LDAC) system is proposed for unoccupied rooms without fresh air demand, showing energy and space advantages over traditional systems.
BUILDING AND ENVIRONMENT
(2021)
Article
Thermodynamics
Pooya Navid, Shirin Niroomand, Carey J. Simonson
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID
(2019)
Article
Thermodynamics
Masoud Rashidzadeh, Nader Pourmahmoud, Carey J. Simonson
APPLIED THERMAL ENGINEERING
(2019)
Article
Energy & Fuels
Miklos Kassai, Laith Al-Hyari
Article
Thermodynamics
Ahmed H. Abdel-Salam, Carey J. Simonson
SCIENCE AND TECHNOLOGY FOR THE BUILT ENVIRONMENT
(2020)
Article
Thermodynamics
Adesola Oluwasijibomi Olufade, Carey James Simonson
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2020)
Article
Chemistry, Multidisciplinary
Abdalla H. Karoyo, Leila Dehabadi, Wahab Alabi, Carey J. Simonson, Lee D. Wilson
Article
Chemistry, Multidisciplinary
Wahab O. Alabi, Abdalla H. Karoyo, Easwaran N. Krishnan, Leila Dehabadi, Lee D. Wilson, Carey J. Simonson
Article
Thermodynamics
Easwaran N. Krishnan, Hadi Ramin, Mohsen Shakouri, Lee D. Wilson, Carey J. Simonson
APPLIED THERMAL ENGINEERING
(2020)
Article
Energy & Fuels
Laith Al-Hyari, Miklos Kassai
Article
Thermodynamics
Laith Al-Hyari, Miklos Kassai
Summary: The variable refrigerant flow air-conditioning system, utilizing a variable-speed compressor, operates efficiently while reducing energy consumption. A TRNSYS model was used in the study to establish a simulation model, with validation showing close agreement between simulated and measured data, as well as proposing the addition of an Energy Recovery Ventilation system to save 18.8% of energy consumption annually.
INTERNATIONAL JOURNAL OF GREEN ENERGY
(2021)
Article
Construction & Building Technology
Wahab O. Alabi, Easwaran N. Krishnan, Abdalla H. Karoyo, Leila Dehabadi, Lee D. Wilson, Carey J. Simonson
Summary: This study investigates the latent effectiveness of flax-fiber coated energy wheels and compares them with commercially available desiccants and other biomaterials in a wide range of operating conditions. The findings can be useful for the research and development of bio-materials for energy recovery systems in building applications.
BUILDING AND ENVIRONMENT
(2021)
Article
Thermodynamics
Parisa Kazemiani-Najafabadi, Ehsan Amiri Rad, Carey James Simonson
Summary: This paper presents a novel ammonia-water cogeneration system driven by waste heat recovery, which can simultaneously generate cooling and power. By adjusting the maximum pressure and ammonia concentration, the ratio between net power and cooling capacity can be optimized, and the system can be further optimized using a genetic algorithm.
Article
Thermodynamics
Alireza Razmavar, Gurubalan Annadurai, Adesola Olufade, Carey J. Simonson
Summary: Crystallization fouling is a significant factor in the design and operation of membrane-based separation processes. This paper presents a semi-empirical model that predicts the fouling rate of membranes in liquid-to-air membrane energy exchangers (LAMEEs), and validates the model using experimental data.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Thermodynamics
Miklos Kassai
Summary: The research aimed to develop a thermal simulation model for investigating the thermal parameters of refrigerant systems, which was validated using experimental data and found MATLAB software to be the most suitable tool for energy consumption studies of refrigeration systems in commercial cold stores.
Article
Thermodynamics
Miklos Kassai
