Article
Chemistry, Multidisciplinary
Animesh Pal, Kaiser Ahmed Rocky, Bidyut Baran Saha
Summary: This study investigates the performance and thermodynamic properties of activated carbons prepared from waste biomass materials in adsorption cooling systems. The findings suggest that the studied samples show promising potential for practical applications, with a significant improvement in specific cooling effect compared to existing standards.
JOURNAL OF CO2 UTILIZATION
(2021)
Article
Engineering, Environmental
Wouroud Sghaier, Yosra Ben Torkia, Mohamed Bouzid, Abdelmottaleb Ben Lamine
Summary: This paper fits the adsorption isotherms of carbon dioxide on highly porous activated carbon using advanced statistical physics models to interpret the process. Physicochemical parameters were deduced through the best fitting model, showing CO2 molecules forming a single layer on modified activated carbon and mainly binding in a parallel position with adsorption energies reflecting physisorption. The use of the enthalpy function for thermodynamic evaluation in a CO2 adsorption cooling system revealed a coefficient of performance ranging from 0.09 to 0.19 at regeneration temperatures between 303 K and 343 K.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Joon Hyuk Lee, Su Ji Sim, Ju Hui Kang, Sang Sun Choi
Summary: Porous carbon fibers were designed with CO2 activation for enhanced malachite green adsorption, characterized both experimentally and numerically to reveal the physiochemical mechanisms, resulting in high specific surface area and effective adsorption performance. Adsorption isotherm fits Langmuir model with high maximum adsorption capacity, and regeneration rate over 80% was achieved in multiple trials. Thermodynamics analysis showed endothermic and spontaneous nature of the adsorption process.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
Drew M. Glenna, Asmita Jana, Qiang Xu, Yixiao Wang, Yuqing Meng, Yingchao Yang, Manish Neupane, Lucun Wang, Haiyan Zhao, Jin Qian, Seth W. Snyder
Summary: This article introduces an AC-based material and proposes a hierarchical guideline for evaluating the feasibility of such materials in carbon capture. The most critical performance indicator is the CO2 adsorption energy, with considerations for thermal stability and defect sensitivity, as well as selectivity and capacity.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Energy & Fuels
Victor Joseph Aimikhe, Moses Stephen Anyebe, Millicent Ibezim-Ezeani
Summary: This study investigates the adsorption of CO2 using composite activated carbon from almond and mango seed shells. The AC-KAM sample showed the highest adsorption capacity and small pore size, making it suitable for low-concentration CO2 adsorption.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Chemistry, Multidisciplinary
Miroslaw Kwiatkowski, Dimitrios Kalderis, Wataru Tono, Toshiki Tsubota
Summary: In this study, the porous structure of activated carbons prepared from Moso bamboo was mathematically analyzed. The analysis revealed the complexity of the carbon's porous structure and the differences in CO2 and N-2 adsorption. The combination of various methods used in the study assists in determining the optimal activated carbon for CO2 adsorption.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Thermodynamics
Gautam, Satyabrata Sahoo
Summary: The current research focuses on characterizing and comparing the physiochemical properties of seven commercially available activated carbons (ACs) as adsorbents for CO2 capture. The study found that the selected ACs have high micro and ultra-micro porosity, making them suitable for post-combustion CO2 capture. The study also estimated important thermodynamic properties of adsorption and confirmed that the selected ACs are suitable for various gas sorption applications.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2022)
Article
Engineering, Chemical
Syeda Saba Fatima, Azry Borhan, Muhammad Ayoub, Noraini Abd Ghani
Summary: This study evaluated the equilibrium and kinetics properties of CO2 adsorption on two RSS-derived AC samples. The Freundlich model accurately described the experimental results, indicating a heterogeneous phase for the adsorption process. The pseudo-second order model was found to be the most suitable for both blank and IL-functionalized AC.
Article
Thermodynamics
Zhaosheng Yang, Muhammad Sultan, Kyaw Thu, Takahiko Miyazaki
Summary: In this study, the adsorption isotherms of difluoromethane on activated carbon were measured and a thermodynamic model was proposed to investigate the adsorption potential under supercritical conditions. The developed models were utilized in the equilibrium analysis of an adsorption heat pump to evaluate its performance.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Chemistry, Multidisciplinary
Hossein Mashhadimoslem, Mobin Safarzadeh Khosrowshahi, Mohammad Jafari, Ahad Ghaemi, Ali Maleki
Summary: In this study, a volumetric system was used to evaluate the adsorption performance of carbon-based adsorbents for oxygen, nitrogen, and carbon dioxide gases. The effects of ZnCl2 addition and heat treatment temperature on the adsorptive capabilities were investigated. The results showed that the addition of ZnCl2 improved the adsorption capacity for oxygen. Additionally, the adsorption isotherm and kinetic models indicated that the optimal sample exhibited the highest adsorption capacity for oxygen compared to nitrogen and carbon dioxide.
Article
Thermodynamics
Gautam, Satyabrata Sahoo
Summary: The research focuses on characterizing and comparing seven commercially available activated carbons as adsorbents for CO2 capture, revealing their suitability for various gas sorption applications and providing valuable properties for actual system design.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2022)
Article
Thermodynamics
A. Asif Sha, V. Baiju
Summary: In this study, a thermodynamic model is presented for analyzing the performance of a two-bed solar adsorption cooling system. The use of isothermal adsorption is proposed to improve the system performance. The study focuses on the use of activated carbon/ethanol working pair, evaluating the effect of desorption temperature on system performance, and achieving a maximum coefficient of performance of 0.68.
INTERNATIONAL JOURNAL OF REFRIGERATION
(2021)
Article
Engineering, Chemical
Chaiyot Tangsathitkulchai, Suravit Naksusuk, Atichat Wongkoblap, Poomiwat Phadungbut, Prapassorn Borisut
Summary: The study investigated the equilibrium and kinetics of CO2 adsorption by coconut-shell activated carbon impregnated with sodium hydroxide at 273 K. The CO2 adsorption increased with NaOH loading and exhibited three distinctive regions. The results showed an empirical correlation between effective pore diffusivity, CO2 adsorption, and NaOH loading.
Article
Chemistry, Multidisciplinary
Ilya Men'shchikov, Andrey Shkolin, Elena Khozina, Anatoly Fomkin
Summary: An activated carbon SiC-AC prepared from silicon carbide was studied as an adsorbent for xenon. The adsorbent exhibited a relatively homogeneous microporous structure and temperature-sensitive adsorption behavior.
Review
Environmental Studies
R. Maniarasu, Sushil Kumar Rathore, S. Murugan
Summary: This review article provides a comprehensive review of the utilization, production, and characterization of biomass-based activated carbon for CO2 adsorption, including utilization research, characterization research, and research on enhancing adsorption performance.
ENERGY & ENVIRONMENT
(2023)
Review
Chemistry, Multidisciplinary
Andrew Chapman, Elif Ertekin, Masanobu Kubota, Akihide Nagao, Kaila Bertsch, Arnaud Macadre, Toshihiro Tsuchiyama, Takuro Masamura, Setsuo Takaki, Ryosuke Komoda, Mohsen Dadfarnia, Brian Somerday, Alexander Tsekov Staykov, Joichi Sugimura, Yoshinori Sawae, Takehiro Morita, Hiroyoshi Tanaka, Kazuyuki Yagi, Vlad Niste, Prabakaran Saravanan, Shugo Onitsuka, Ki-Seok Yoon, Seiji Ogo, Toshinori Matsushima, Ganbaatar Tumen-Ulzii, Dino Klotz, Dinh Hoa Nguyen, George Harrington, Chihaya Adachi, Hiroshige Matsumoto, Leonard Kwati, Yukina Takahashi, Nuttavut Kosem, Tatsumi Ishihara, Miho Yamauchi, Bidyut Baran Saha, Md Amirul Islam, Jin Miyawaki, Harish Sivasankaran, Masamichi Kohno, Shigenori Fujikawa, Roman Selyanchyn, Takeshi Tsuji, Yukihiro Higashi, Reiner Kirchheim, Petros Sofronis
Summary: This study details the research themes being conducted by the International Institute for Carbon-Neutral Energy Research (I2CNER) and highlights the importance of international collaboration and favorable policy agendas in achieving carbon neutrality. The study emphasizes the need for a diverse range of technologies and initiatives to realize a carbon-free energy system.
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
(2022)
Article
Thermodynamics
Hisham Maher, Tahmid Hasan Rupam, Kaiser Ahmed Rocky, Ramadan Bassiouny, Bidyut Baran Saha
Summary: This study focuses on the synthesis and characterization of composites comprising RD silica gel and metal-organic framework MIL-100(Fe) to improve the performance of adsorption-based atmospheric water harvesting system. The impact of adding MIL-100(Fe) on the properties of the composites was experimentally investigated, and three performance indicators were introduced to evaluate the system's performance.
Article
Thermodynamics
Tahmid Hasan Rupam, M. L. Palash, Md Amirul Islam, Bidyut Baran Saha
Summary: This study analyzed and compared the performance of green synthesized transitional metal (10% Ni and 10% Co) doped aluminum fumarate metal-organic frameworks as adsorbent materials in an adsorption chiller with water as the refrigerant. The doped samples showed higher water uptakes and adsorption isotherms shifting towards the lower pressure region. The cyclic performances were investigated through P-T-q diagrams, and specific cooling effects were calculated and compared for different adsorbent/adsorbate pairs.
Article
Thermodynamics
Ahmed A. Askalany, Kutub Uddin, Bidyut B. Saha, Muhammad Sultan, Giulio Santori
Summary: This study presents a new method for experimental investigation of water adsorption kinetics using silica-supported ionic liquid, and predicts its performance in water desalination through modeling. The results suggest a promising future for this material in water desalination applications.
Editorial Material
Thermodynamics
Bidyut Baran Saha, Masashi Haruki, Khairul Habib
HEAT TRANSFER ENGINEERING
(2022)
Article
Thermodynamics
Tahmid Hasan Rupam, M. L. Palash, Anutosh Chakraborty, Bidyut Baran Saha
Summary: This study explores the application of metal organic frameworks (MOFs) as adsorbent materials in adsorption-based heat transformation. Different MOFs were synthesized and their water adsorption was measured. The entropy generation and surface properties were studied to understand the relationship between surface energy and water adsorption. This information is crucial for designing efficient adsorption-based heat transformation applications.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Chemistry, Analytical
Sampad Ghosh, Samira Yasmin, Jannatul Ferdous, Bidyut Baran Saha
Summary: The effect of molybdenum disulfide (MoS2) as a buffer layer on the parameters of CZTS-based solar cell devices was explored. The proposed structure of graphene/MoS2/CZTS/Ni exhibited enhanced solar cell performance.
Article
Green & Sustainable Science & Technology
Israt Jahan, Md. Amirul Islam, Tahmid Hasan Rupam, Mujib L. Palash, Kaiser Ahmed Rocky, Bidyut Baran Saha
Summary: Adsorption-assisted energy conversion technologies are receiving extensive attention as a sustainable solution for meeting global energy demands. In this study, the water sorption properties of MOF-801 were enhanced by introducing nickel and cobalt into the framework. Two novel bimetallic MOFs, Ni-MOF-801 and Co-MOF-801, were successfully synthesized and showed improved porous and adsorption properties compared to pristine MOF-801. Co-MOF-801 demonstrated a 43% increase in specific cooling effect compared to the pristine MOF-801. These findings contribute significantly to the development of high-performance adsorption-based energy conversion systems.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2022)
Article
Economics
Andrew Chapman, Yosuke Shigetomi, Shamal Chandra Karmaker, Bidyut Saha, Caleb Brooks
Summary: This study investigates the differences in awareness and preference of racial groups towards the types of energy for future energy system design in the US, emphasizing the importance of considering cultural and demographic awareness in energy policy making.
Article
Thermodynamics
Balaji Bakthavatchalam, Khairul Habib, R. Saidur, Bidyut Baran Saha
Summary: This research proposes the use of nanofluid as a coolant and a nanofluid cooled radiator to enhance the heat transfer rate of thermoelectric air conditioners. Experimental results show that the newly designed system performs best at 6A input current, with a lower temperature drop, higher cooling capacity, and coefficient of performance. Compared to conventional air conditioners, this system achieves significant energy saving and CO2 emission reduction.
APPLIED THERMAL ENGINEERING
(2022)
Article
Thermodynamics
Shahadat Hosan, Md Matiar Rahman, Shamal Chandra Karmaker, Andrew J. Chapman, Bidyut Baran Saha
Summary: This paper investigates the impact of remittances on multidimensional energy poverty in Bangladesh using a nationally representative Household Income and Expenditure Survey. The findings suggest that households with remittance income have a significantly lower level of energy poverty. The authors argue that increasing remittance inflow can contribute to alleviating energy poverty in Bangladesh and other developing nations, and therefore, national programs should be established to promote migrant workers, reduce household energy costs, and invest in modern energy technologies.
Article
Thermodynamics
Jaedeok Ko, Kyaw Thu, Takahiko Miyazaki
Summary: This study investigates the energy-saving potential of managing heat rejection pressure in an R-744 transcritical system and provides quantitative data on the amount of energy that can be saved. Through simulations and experiments, the optimum heat rejection pressure and the system's dynamic performance were studied. The results show that the system can significantly reduce power consumption when the expansion valve control target is properly selected.
APPLIED THERMAL ENGINEERING
(2023)
Article
Environmental Sciences
Md. Shafiqul Islam, Animesh Pal, Mohammad Shams Noor, Istiak Uddin Sazzad
Summary: This study collected data on non-ionizing radiation (NIR) emitted from base transceiver stations in Dhaka City and compared it to international standards and standards of other countries. The study found that the average electric field and electromagnetic field values exceeded the threshold values of certain countries, and approximately 35% of the calculated specific energy absorption rate values exceeded the recommended limit. The study suggests the need for detailed NIR exposure regulations and proper oversight and enforcement.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Thermodynamics
Balaji Bakthavatchalam, Khairul Habib, Cecilia D. Wilfred, R. Saidur, Bidyut Baran Saha
Summary: This paper investigates the application of an ionic liquid in nanofluids and compares its stability and thermal properties with conventional surfactants. The results show that the inclusion of the ionic liquid improves the thermal conductivity and stability of the nanofluid. However, the electrostatic repulsive force of the ionic liquid decreases with increasing temperature. The nanofluid containing the ionic liquid demonstrates the most significant enhancement in thermal conductivity at 303 K and a maximum dispersion stability of over one month.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Review
Thermodynamics
Shuling Guo, Ankuo Zhang
Summary: Low-temperature biopreservation is commonly used for medication storage to prolong their shelf life. However, cryo-injury can occur during cryopreservation, making it crucial to find a way to achieve long-term biopreservation without causing harm. The optimal storage temperature for different biomaterials should be investigated to improve storage efficiency. This review discusses the mechanisms of cryo-injury and biopreservation, as well as the reasons for storing biological tissues at various temperature zones. It provides valuable insights for the development of biostorage technology.
INTERNATIONAL JOURNAL OF REFRIGERATION
(2024)
Article
Thermodynamics
M. Mohsin Tanveer, Craig R. Bradshaw, Joe Orosz, Greg Kemp
Summary: This study investigates the optimal geometric parameters for a spool compressor using simulation models, and the results indicate that a eccentricity ratio of 0.75 and L/D ratios between 1-1.5 can maximize the volumetric and isentropic efficiencies.
INTERNATIONAL JOURNAL OF REFRIGERATION
(2024)
Article
Thermodynamics
Kongkuai Ying, Zhenhua Jiang, Wenting Wu, Jinjian Chu, Shaoshuai Liu, Yinong Wu
Summary: The Stirling/pulse tube cryocooler (SPC) is a highly efficient and long-lasting cryocooler for space applications. It has the ability to adjust the inter-stage refrigeration capacity dynamically by controlling the Stirling displacer in the first stage. This paper proposes an SPC with a second-stage active phase shifter (APS) that can control the phase difference at the second-stage hot end in real time. The experimental results show that the SPC with the APS can provide refrigeration capacity at different temperatures, with a minimum temperature of 13.5K.
INTERNATIONAL JOURNAL OF REFRIGERATION
(2024)
Article
Thermodynamics
Ligeng Li, Hua Tian, Kai Liu, Yibo Wu, Xuan Wang, Xingyu Liang, Gequn Shu
Summary: This study focuses on improving the performance of carbon dioxide refrigeration systems by introducing a multi-ejector design with three controllable ejectors. Experimental analysis shows that the system's performance can be significantly improved by adopting an optimum pressure control strategy under different operating conditions.
INTERNATIONAL JOURNAL OF REFRIGERATION
(2024)
Article
Thermodynamics
Joseph Al Khoury, Rabih Al Haddad, Ghiwa Shakrina, Christelle Bou Malham, Haytham Sayah, Chakib Bouallou, Maroun Nemer
Summary: This study investigates two implementation methods for calculating refrigerant thermodynamic properties and compares their performance. The results show that the implicit fitting method significantly speeds up simulation time and offers greater flexibility for modeling complex energy systems.
INTERNATIONAL JOURNAL OF REFRIGERATION
(2024)
Article
Thermodynamics
Mariella Mateo-Villanueva, Rodolfo Echarri
Summary: This article details three models of different complexity levels for predicting the cold production of a solar cooling device and compares their advantages and disadvantages. The results show that the transient model underestimates the cold generation, while the equilibrium model and universal model overestimate it. The transient model is a useful tool for analyzing the impact of different variables in a solar adsorption refrigeration system, while the simpler models can be used for preliminary design and feasibility studies.
INTERNATIONAL JOURNAL OF REFRIGERATION
(2024)
Article
Thermodynamics
Amin M. Elsafi, Majid Bahrami
Summary: The novel spherical micro-absorbers offer high sorption capacity and surface-to-volume ratios, solving issues such as solution carryover and corrosion associated with conventional absorbers.
INTERNATIONAL JOURNAL OF REFRIGERATION
(2024)
