Performance comparison of liquid metal cooling system and regenerative cooling system in supersonic combustion ramjet engines

Xu, Jing; Cheng, Kunlin; Dang, Chaolei; Wang, Yilin; Liu, Zekuan; Qin, Jiang; Liu, Xiaoyong

doi:10.1016/j.energy.2023.127488

Cited by 13 publications

(3 citation statements)

References 29 publications

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“…Fan mechanical power: The shaft mechanical power absorbed by the fan is obtained by applying the efficiency (η alt ) of the alternator in converting mechanical power (P mec ) into electrical power (P ele ) demanded by the component according to Equation (4).…”

Section: Intermediate Datamentioning

confidence: 99%

“…However, outside these conditions, the system tends to be oversized, leading to high hydraulic losses when under partial load. As a result, cooling systems have undergone numerous improvements to increase cooling capacity to compensate for the engine's thermal rejection [2][3][4]. However, this increase is associated with high energy consumption [3].…”

Section: Introductionmentioning

confidence: 99%

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Analysis and Optimization of the Fuel Consumption of an Internal Combustion Vehicle by Minimizing the Parasitic Power in the Cooling System

Brayner,

da Costa,

Ochoa

et al. 2024

Processes

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This study aims to enhance energy efficiency by reducing parasitic losses in the engine cooling system through a new drive strategy involving a two-stage water pump and a variable electro-fan. The fuel consumption gain analysis focused on a vehicle with average characteristics typical of 1.0L hatchbacks in the Brazilian market and urban driving conditions. The methodology implemented aims to minimize power absorbed by the forced water circulation and thermal rejection, thereby reducing parasitic losses, particularly during low-speed urban driving, without causing air-side heat exchanger saturation. The results show a potential decrease of up to 80% in power absorbed by the cooling system, leading to an estimated fuel consumption saving of approximately 1.4% during urban driving cycles.

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Section: Intermediate Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis and Optimization of the Fuel Consumption of an Internal Combustion Vehicle by Minimizing the Parasitic Power in the Cooling System

Brayner,

da Costa,

Ochoa

et al. 2024

Processes

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show abstract

“…Furthermore, its superior fluidity, conductivity, lower melting point, and higher boiling point are capable of performing well under situations of extreme heat flux [39,40]. So that, liquid metal is widely adopted as a promising coolant in various heat dissipation research, such as commercial CPU heat dissipation [26,41], high-power LED equipment thermal management [42,43], high-power laser diode cooling [44], supersonic ramjet regenerative cooling [45,46], chip cooling [47,48], and phase change and energy storage materials [49][50][51][52][53].…”

Section: Introductionmentioning

confidence: 99%

Flow and Heat Transfer Performance of Liquid Metal in Mini-Channel and Verification of Geometric Parameter Optimization

Xiang,

Yang,

Wang

et al. 2023

J. Adv. Therm. Sci. Res.

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With the rapid development of the electronics industry, the power of devices continues to rise, and seeking more efficient cooling technologies has become a key challenge in various applied scenarios. This study contributes to a novel and efficient heat dissipation method for chips employing liquid metal as a coolant. In this paper, the flow and heat transfer performance of a novel liquid metal (Ga61In25Sn13Zn1) in a mini-channel heat sink is conducted. Using pressure difference, pump power, and total thermal resistance as object parameters, a comprehensive optimization about Hp (channel height), Wc (channel width), Ww (wall thickness), and tb (base thickness) is presented. The optimized parameter combination is Hp = 7 mm, Wc = 0.6 mm, Ww = 0.4 mm, and tb = 0.2 mm. Furthermore, all of the optimization parameters are verified through the design method of orthogonal experiments.

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Performance analysis and optimization of a novel S-CO2 closed-Brayton-cycle-based thermal management system for scramjets

Dang,

Xu,

Tan

et al. 2024

Applied Thermal Engineering

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Performance comparison of liquid metal cooling system and regenerative cooling system in supersonic combustion ramjet engines

Cited by 13 publications

References 29 publications

Analysis and Optimization of the Fuel Consumption of an Internal Combustion Vehicle by Minimizing the Parasitic Power in the Cooling System

Analysis and Optimization of the Fuel Consumption of an Internal Combustion Vehicle by Minimizing the Parasitic Power in the Cooling System

Flow and Heat Transfer Performance of Liquid Metal in Mini-Channel and Verification of Geometric Parameter Optimization

Performance analysis and optimization of a novel S-CO2 closed-Brayton-cycle-based thermal management system for scramjets

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