Three different flow rates of water 5 LPM, 10 LPM and 15 LPM are analyzed and compared with a conventional air-cooled induction motor, which was validated with the
Combining adiabatic compressed air storage and large-scale solid-oxide electrolysis cells can efficiently provide the heat and power needed for green hydrogen production.
The predominant concern in contemporary daily life revolves around energy production and optimizing its utilization. Energy storage systems have emerged as the paramount solution for harnessing produced energies efficiently and preserving them for subsequent usage. This chapter aims to provide readers with a comprehensive understanding of the "Introduction
Compressed air energy storage (CAES) is an effective solution for balancing this mismatch and therefore is suitable for use in future electrical systems to achieve a high penetration of renewable energy generation. This study introduces recent progress in CAES, mainly advanced CAES, which is a clean energy technology that eliminates the use of
Air cooling including natural and forced convection cooling is capable of keeping the temperature of key components within the safety temperature range. Li et al. studied a fully enclosed air-cooled induction motor used in a small EV.
Adiabatic compressed air energy storage without thermal energy storage tends to have lower storage pressure, hence the reduced energy density compared to that of thermal energy storage [75]. The input energy for adiabatic CAES systems is obtained from a renewable source. The overall efficiency of the adiabatic compressed air energy storage system is
Energy storage systems are increasingly gaining importance with regard to their role in achieving load levelling, especially for matching intermittent sources of renewable energy with customer demand, as well as
1 天前· This paper performs a techno-economic comparison between cold thermal energy storage for gas turbines air inlet cooling and other established energy storage technologies (such as pumped hydro, batteries, compressed air, and pumped thermal storage) for time load shifting and energy arbitrage on the day ahead electricity market. The analysis is
Cooling or heating for the cabin, energy storage system (ESS) and power electronics and electric motor (PEEM) can be achieved by controlling the on–off of each valve in the coolant loop. It should be noted that the motor/electronic controller heat exchanger in this system is simply coupled with the heat pump system via the coolant
Liquid air energy storage (LAES) can offer a scalable solution for power management, with significant potential for decarbonizing electricity systems through integration with renewables. Its inherent benefits, including no geological constraints, long lifetime, high energy density, environmental friendliness and flexibility, have garnered increasing interest. LAES traces its
For simulating the air-cooled and liquid-cooled modules, the velocity-inlet and pressure-outlet are applied to the inlet and outlet of the computational domain. Moreover, the remaining walls are assumed to be in an adiabatic condition, and the initial temperature of the module for both BTMSs is assumed to be 25 °C. A variable coolant flow rate and inlet
In the past few decades, electricity production depended on fossil fuels due to their reliability and efficiency [1].Fossil fuels have many effects on the environment and directly affect the economy as their prices increase continuously due to their consumption which is assumed to double in 2050 and three times by 2100 [6] g. 1 shows the current global
The prevailing cooling method for synchronous and asynchronous motors is air cooling using external fins, air circulation ducts, air gaps, and fan impellers to enhance efficiency and reliability. Internal cooling with rotor and stator ducts, along with optimized air duct geometry, shows potential to increase the power-to-dimension
Air cooling is the most common method of cooling motors with low power density using natural or forced convection. In an air-cooling system, parameters like airflow path, velocity, fin design and pressure drop across the flow length play a significant role in the efficient cooling of the motor. Hence, this section is devoted to a
The increasing global demand for reliable and sustainable energy sources has fueled an intensive search for innovative energy storage solutions [1].Among these, liquid air energy storage (LAES) has emerged as a promising option, offering a versatile and environmentally friendly approach to storing energy at scale [2].LAES operates by using excess off-peak electricity to liquefy air,
CAES is an energy storage system that compresses air during off-peak hours for release during peak demand, generating electricity through an expander. It uses electricity during off-peak hours to compress and store ambient air under pressure in subterranean reservoirs, such as caverns and salt mines.
Three different flow rates of water 5 LPM, 10 LPM and 15 LPM are analyzed and compared with a conventional air-cooled induction motor, which was validated with the available published resources.
Air cooling including natural and forced convection cooling is capable of keeping the temperature of key components within the safety temperature range. Li et al. studied a fully enclosed air-cooled induction motor
CAES is an energy storage system that compresses air during off-peak hours for release during peak demand, generating electricity through an expander. It uses electricity
1 天前· This paper performs a techno-economic comparison between cold thermal energy storage for gas turbines air inlet cooling and other established energy storage technologies
This paper takes a fully air-cooled 145 MW (generating)–170 MW (pumping) pumped storage generator motor as an example, and the 2D transient electromagnetic field
Air cooling is the most common method of cooling motors with low power density using natural or forced convection. In an air-cooling system, parameters like airflow path,
Combining adiabatic compressed air storage and large-scale solid-oxide electrolysis cells can efficiently provide the heat and power needed for green hydrogen production.
CAES systems are categorised into large-scale compressed air energy storage systems and small-scale CAES. The large-scale is capable of producing more than 100MW, while the small-scale only produce less than 10 kW [60].The small-scale produces energy between 10 kW - 100MW [61].Large-scale CAES systems are designed for grid applications during load shifting
Cooling or heating for the cabin, energy storage system (ESS) and power electronics and electric motor (PEEM) can be achieved by controlling the on–off of each valve
The prevailing cooling method for synchronous and asynchronous motors is air cooling using external fins, air circulation ducts, air gaps, and fan impellers to enhance efficiency and reliability. Internal cooling
Compressed air energy storage (CAES) is an effective solution for balancing this mismatch and therefore is suitable for use in future electrical systems to achieve a high penetration of renewable energy generation. This study introduces recent progress in CAES,
This paper takes a fully air-cooled 145 MW (generating)–170 MW (pumping) pumped storage generator motor as an example, and the 2D transient electromagnetic field and 3D fluid–thermal coupled field of the pumped storage generator motor are calculated and analyzed. Firstly, the 2D time-step finite element model of transient
Huijue Group, one of China''s suppliers of new energy storage systems, offers advanced energy storage solutions and a wide range of products, including household, industrial, commercial, and site energy storage systems. The company is dedicated to the transformation and utilization of renewable energy, aiming to build an environmentally
Electrical energy storage (EES) converts electricity into another form during valley periods and converts it back to electricity during peak periods [13].At present, EES technologies mainly consist of pumped hydro energy storage (PHES), battery energy storage (BES), compressed air energy storage (CAES), and flywheel energy storage (FES), among
The design of the cooling system depends on the application area of the motor. For example, air cooling systems are utilized in industrial and household appliance electric motors. Meanwhile, for vehicles and aircraft motors, there is a trend toward using liquid cooling systems.
The cooling system consists of primary and secondary circuits. The primary cooling circuit provides air cooling of the electric motor housing by the shaft-mounted external fan impellers, which direct the airflow over the stator body fins and cool the motor by forced convection and radiation (see Figure 4, external cooling (fan, self-cooling)).
A large capacity 100 kW air-cooled motor and an enhanced model of integrated air and water-cooled IM were modelled using SolidWorks 2017 software and further numerically simulated using ANSYS Fluent software. The heat generation rates were found through an extensive survey of existing scientific literature available on a 100-kW IM.
Robotics and industrial electric motors mainly utilize forced air cooling, with the cooling method or design of the fan, stator, and rotor being the main subjects of patents (Table 5). A characteristic feature of refrigerant cooling systems is the direct evaporative cooling of the stator and rotor via injection (Table 6).
As the main result, the thermal analysis of an air-cooled and large-capacity induction motor is given, considering well-known heat distribution problems. Moreover, this study also presents an integrated approach with two or more cooling strategies to be the need of the hour.
A model of a 100-kW air-cooled induction motor and an improved thermal management model of the same motor were both numerically investigated, using a combination of air cooling and integrated water cooling systems to achieve a significant improvement in motor efficiency.
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