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Thermal analysis and optimization of combined cold and power
The thermal analysis and optimization of a proposed combined cold and power system with integrated phosphoric acid fuel cell and two-stage compression– absorption refrigerator at low evaporation temperature (CPAR) are conducted. The mathematical model of the CPAR system is established on the basis of the
Fuel cells with an operational range of –20 °C to 200 °C enabled by
The resulting PA-doped PEMFCs display 95% peak power density retention after 150 start-up/shut-down cycles at 15 °C and can accomplish over 100 cycles, even at −20 °C. phosphoric acid
Phosphoric Acid | H3PO4 | CID 1004
Phosphoric Acid | H3PO4 or H3O4P | CID 1004 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. the gastrointestinal tract. Transport of phosphate from the gut lumen is an active, energy-dependent process
Types of Fuel Cells | Department of Energy
DMFCs are often used to provide power for portable fuel cell applications such as cell phones or laptop computers. Alkaline fuel cells Phosphoric acid fuel cells (PAFCs) use liquid phosphoric acid as an electrolyte—the acid is contained in a Teflon-bonded silicon carbide matrix—and porous carbon electrodes containing a platinum catalyst
N, P, S co-doped biomass-derived hierarchical porous carbon
The calculation results show that the symmetrical energy storage device has a maximum gravimetric specific energy of 14.08 Wh kg −1 at the specific power of 175 W kg −1. The symmetrical device maintains a specific energy of 9.75 Wh kg −1 even at the high gravimetric specific power of 7.0 kW kg −1 .
A new hybrid solar photovoltaic/ phosphoric acid fuel cell and energy
Performance assessment of a hybrid solid oxide and molten carbonate fuel cell system with compressed air energy storage under different power demands. Int J Hydrogen Energy (2020) M. Kapsali et al. and unit fuel cell performance under phosphoric acid environment. These parameters are compared with the standard
Effect of phosphoric acid-doped polybenzimidazole membranes
Effect of phosphoric acid-doped polybenzimidazole membranes on the performance of H+-ion concentration cell this cell can boast a power density from 3.0 to 8.0 W m⁻², which results in a
Energy storage techniques, applications, and recent trends: A
Energy storage provides a cost-efficient solution to boost total energy efficiency by modulating the timing and location of electric energy generation and
Comparison of Fuel Cell Technologies | Department of Energy
Backup power. Transportation. Wider range of stable materials allows lower cost components. Low temperature. Quick start-up. Sensitive to CO 2 in fuel and air. Electrolyte management (aqueous) Electrolyte conductivity (polymer) Phosphoric acid (PAFC) Phosphoric acid soaked in a porous matrix or imbibed in a polymer membrane:
Analysis of a phosphoric acid fuel cell-based multi-energy hub
The system includes a hydrogen storage tank, a phosphoric acid fuel cell, an afterburner, an organic Rankine cycle, a thermal energy storage tank, an absorption chiller, and heat exchangers.
Solvent-free protic liquid enabling batteries operation at an ultra
Herein, we report polyphosphoric acid as a solvent-free protic liquid electrolyte, which excludes the demerits of solvent and exhibits unprecedented superiorities, including nonflammability,
Comparing specific capacitance in rice husk-derived activated
carbon through phosphoric acid and potassium hydroxide Supercapacitors have emerged as a promising energy storage technology, o˜ering high power density, fast charg- to improved energy
Poly (triphenylene-piperidine) membranes reinforced by carboxy
To address the inferior mechanical properties associated with high phosphoric acid (PA) content, a rigid microporous polymer containing carboxyl groups (cPIM) was incorporated into poly (triphenylene-piperidine) (PTP) matrix to prepare composite membranes (PTP-xcPIM) for high-temperature proton exchange membrane
Fuel Cell Basics | Department of Energy
Phosphoric acid fuel cells use a phosphoric acid electrolyte that conducts protons held inside a porous matrix, and operate at about 200°C. They are typically used in modules of 400 kW or greater and are being used for stationary power production in hotels, hospitals, grocery stores, and office buildings, where waste heat can also be used.
Cost-effective iron-based aqueous redox flow batteries for large
Since IBA-RFBs may be scaled-up in a safe and cost-effective manner, it has become one of the best choices for large-scale energy storage application. 3. Several important IBA-RFBs3.1. Iron-chromium redox flow battery. In 1973, NASA established the Lewis Research Center to explore and select the potential redox couples for energy
Phosphoric acid fuel cells
The liquid nature of the phosphoric acid electrolyte makes establishing a stable three-phase interface critical to achieving good power density and to the long-term operation of PAFCs, particularly at high current densities. Materials, structures, and processing methods to improve and stabilize this contact have been critical in the
Phosphoric acid/glycerol-based anti-freezing
A novel phosphoric acid/glycerol co-solvent was proposed for outstanding anti-freezing organohydrogel electrolyte. • High capacity retention rate under long-cycle at −40 °C. • The SC retains excellent flexibility at −40 °C. • A simple and effective strategy is provided for energy storage devices with low-temperature stability.
A new hybrid solar photovoltaic/ phosphoric acid fuel cell and energy
A new hybrid solar photovoltaic/ phosphoric acid fuel cell and energy storage system; Energy and Exergy performance. Shen Cheng, Gaiju Zhao, +3 authors. M. Marefati. Published 11 February 2021. Engineering, Environmental Science. International Journal of Hydrogen Energy. View via Publisher. Save to Library.
Microwave nanoarchitectonics of black phosphorene for
phosphorene for energy storage. Discovery of microwave synthesis of BP from phosphoric acid is reported. Liquid-phase microwave synthesis (800 W) is demonstrated to be facile, single step, and fast (within 10 min). Phosphorene-based 2D-2D heterolayered electronic/ optoelectronic devices exhibited excellent performances.
Analysis of a phosphoric acid fuel cell-based multi-energy hub
A multi-energy hub system to deliver electricity, heating/cooling, and hydrogen was analyzed. • 1.73 MW of power was produced when the NG flow rate of 28,000 kg/h is decompressed.. The energy efficiency ranging from 84.85% to 87.43% was achieved under various operating modes.
A new hybrid solar photovoltaic/ phosphoric acid fuel cell and
In present work, the PHCA performance is investigated from the work of turbine and pump, level of vessel energy storage and energy and exergy overall
Thermal analysis and optimization of combined cold and power
Downloadable (with restrictions)! The thermal analysis and optimization of a proposed combined cold and power system with integrated phosphoric acid fuel cell and two-stage compression– absorption refrigerator at low evaporation temperature (CPAR) are conducted. The mathematical model of the CPAR system is established on the basis of the
International Journal of Hydrogen Energy
At a normal operation temperature of 60 °C and 38% RH, the MEA with optimized COF content (10 wt%) showes the maximum power density of 582 mW cm −2, which is almost 7 times higher than that of the routine MEA (85 mW cm −2). Furthermore, a preliminary durability test demonstrates the potential of the proposed PEMFC for practice
Black phosphorus-based materials for energy storage and
Here, this review highlights the recent experimental and theoretical progress of BP-based electrodes and electrocatalysts. The latest recent advances of BP-based functional materials in energy storage applications including lithium-, magnesium- and
Activated carbon from biomass precursors using phosphoric acid:
Activated carbon (AC) is used in energy storage as a result of its excellent power density, long life cycle, good pore size, and extensive operating temperature variety [53, 184]. Because of its high conductivity, unique properties, and good electrochemical cycling, activated carbon biomass is in high demand as a conductor in electrochemical
Designing the next generation of proton-exchange membrane
The advantages of FCVs include better energy medium, higher energy density, shorter refuelling time, lower cost and safety risks with increasing energy
A facile recovery process for cathodes from spent lithium iron
Inorganic lixiviants such as sulfuric acid [7,11], nitric acid [12], hydrochloric acid [13], and phosphoric acid [14] are commonly combined with a reductant, e.g., hydrogen peroxide to dissolve Co
A Simple and Expeditious Route to Phosphate-Functionalized,
energy storage in a three-electrode cell, they achieved a competitive performance of ∼375 F/g (540 F/cm3) and 356 F/g (500 F/ cm 3 ), respectively. Finally, devices made up of
Economic and environmental assessment of phosphoric acid
Economic and environmental potential of medium-scale combined heat and power (CHP) systems in the residential sector was assessed by introducing a 400 kW el-scale phosphoric acid fuel cell (PAFC)-based CHP system into an apartment building in New York City.Simulation-based analyses were carried out under two different CHP
Analysis of a phosphoric acid fuel cell-based multi-energy hub
As a result, research is currently underway to replace throttling valves with turbo expander generators (TEGs) to obtain additional work power. In this study, a multi-energy hub system consisting of phosphoric acid fuel cell (PAFC) and TEG modules is proposed and analyzed using ASPEN-HYSYS® modeling and simulations.
Phosphoric acid fuel cells
Phosphoric acid fuel cell (PAFC) is the most commercially advanced technology among the hydrogen–oxygen fuel cells. The need for a reforming unit adds to the cost but is a necessity when considering the low energy density hydrogen storage, and the infrastructure available for transport of reformer fuel. Power density for a fuel cell
Thermal analysis and optimization of combined cold and power
Energy and exergy analyses were conducted on a proposed hybrid system consisting of a phosphoric acid fuel cell (PAFC) and a triple-effect compression–absorption refrigerator with [mmim]DMP
Thermal analysis and optimization of combined cold and power
1. Introduction. A large amount of waste heat is mostly generated during the operation of the power system [1].The waste heat can be used to drive the absorption refrigerator to produce cold, which can significantly improve the energy efficiency of the system [2].Therefore, combined cold and power (CCP) systems are highly recognized
A High-Rate Aqueous Proton Battery Delivering Power Below -78
@article{osti_1658599, title = {A High-Rate Aqueous Proton Battery Delivering Power Below -78 °C via an Unfrozen Phosphoric Acid}, author = {Jiang, Heng and Shin, Woochul and Ma, Lu and Hong, Jessica J. and Wei, Zhixuan and Liu, Yusung and Zhang, Suoying and Wu, Xianyong and Xu, Yunkai and Guo, Qiubo and Subramanian, Mas A. and Stickle,
Optimal thermo-economic design of a PAFC-ORC combined
Phosphoric acid fuel cells (PAFCs) are appropriate for applications that require high-quality power because of their high reliability. We propose a system that
Microwave nanoarchitectonics of black phosphorene for energy
With the successful demonstration of microwave power tunable crystallographic structure (black/red) of synthesized phosphorene sheets with enhanced
A new hybrid solar photovoltaic/ phosphoric acid fuel cell and energy
In Ref. [25], energy and exergy performance for hybrid solar, phosphoric acid FC and energy storage was studied. In Ref. [26], the securityconstrained unit commitment problem integrated with P2H
Fuel cells with an operational range of –20 °C to 200 °C enabled by
Here the authors use ultramicroporous, phosphoric acid-doped membranes that allow fuel cell operation from −20 °C to 200 °C. Conventional proton
A High‐Rate Aqueous Proton Battery Delivering Power Below −78
The sluggish ion diffusion and electrolyte freezing with volumetric changes limit the low‐temperature performance of rechargeable batteries. Herein, a high‐rate aqueous proton battery (APB) operated at and below −78 °C via a 62 wt% (9.5 m) H3PO4 electrolyte is reported. The APB is a rocking‐chair battery that operates with protons
Bromine For Energy Storage Solutions| ICL
Bromine-based Energy Storage. ICL offers a range of ESSs including tailor-made electrolyte blends for Bromine-based flow batteries. The addition of ICL''s custom-made Bromine Complexing Agents (BCA) to these electrolyte blends helps overcome various challenges presented by bromine. Bromine-based electrolytes are recyclable and
A High‐Rate Aqueous Proton Battery Delivering Power Below −78
Ever-increasing demands for energy, particularly being environmentally friendly have promoted the transition from fossil fuels to renewable energy. 1 Lithium-ion batteries (LIBs), arguably the most well-studied energy storage system, have dominated the energy market since their advent in the 1990s. 2 However, challenging issues regarding safety
Doosan Fuel Cell''s Path to Hydrogen Power Revolution
South Korea''s Doosan Fuel Cell is poised to revolutionize power generation with the introduction of its new phosphoric acid fuel cell (PAFC) model, the 5CSA. The 5CSA model is projected to increase power generation efficiency by 25% compared to its predecessor, the 4CSA, boasting a capacity of 550 kilowatts (kW) per unit. By eliminating
A combined phosphoric acid fuel cell and direct contact
Power output, energy efficiency, exergy destruction rate, and exergy efficiency of the proposed hybrid system, as crucial performance indicators, are mathematically derived by taking a series of irreversible losses into account. A new hybrid solar photovoltaic/ phosphoric acid fuel cell and energy storage system; Energy and