Experimental analysis of a novel cooling system driven by liquid refrigerant pump and vapor compressor

Yan, Gang; Feng, Yijun; Peng, Leqin

doi:10.1016/j.ijrefrig.2014.09.017

Cited by 35 publications

(3 citation statements)

References 9 publications

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“…Heat Pipe System Year Weber and Wyatt [8] Integrated heat pipe system with a pressurized air duct 2011 Xia et al [9] Separated heat pipe system with forced convection 2008 Xia et al [10] Separated heat pipe system with natural convection 2008 Suenaga and Ichimura [11] Heat pipe-vapour compression one-piece air conditioner 1986 Wang et al [12] Heat pipe-vapour compression compound air conditioner with additional heat exchanger 2013 Han et al [13] Heat pipe-vapour compression compound air conditioner with three-way valve 2013 Yan et al [14], Ma et al [15] Heat pipe-vapour compression compound air conditioner driven by a liquid pump 2015 Zhang et al [16] Mechanical refrigeration/loop heat pipe one-piece air conditioner based on a three-medium heat exchanger 2015 Lee et al [17] Heat pipe-vapour compression compound air conditioner with four solenoid valves 2006…”

Section: Researchermentioning

confidence: 99%

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Energy savings of hybrid dew-point evaporative cooler and micro-channel separated heat pipe cooling systems for computer data centers

Liu

Yang

et al. 2018

Energy

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a b s t r a c tThe world has entered the Age of Big Data with large data centers consuming large amounts of energy. 30%e50% of the energy delivered to a typical data center is consumed by the space cooling system. Dewpoint evaporative coolers and heat pipes both utilizing natural cold resources can significantly reduce these refrigeration costs. This paper presents two hybrid cooling systems combining dew-point evaporative coolers with heat pipes for computing and data center cooling systems. The energy-saving potentials of two these hybrid cooling systems were analysed through calculations with comparisons with a traditional vapour compression refrigeration system. The results show that the average annual coefficients of performance (COP) of the ideal hybrid refrigeration systems are 33 and 34 which leads to annual energy savings of nearly 90% compared with vapour compression refrigeration.Crown

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Section: Researchermentioning

confidence: 99%

“…The air-side heat transfer coefficient for the evaporator is calculated using Eqs. (6)e (14). The results for the air-side heat transfer are shown in Table 10.…”

Section: Evaporator Designmentioning

confidence: 99%

Energy savings of hybrid dew-point evaporative cooler and micro-channel separated heat pipe cooling systems for computer data centers

Liu

Yang

et al. 2018

Energy

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“…The results showed that the cooling capacity of the system could rise up to 3.23 and 9.24 kW under the temperature difference of 10°C and 25°C respectively. Ma et al 25 and Yan et al 26 and Dong et al 27 combined the vapor compression refrigeration system and the pumped two‐phase system in data centers cooling and proposed the compound system with higher EER and lower energy consumption for the cooling objectives under different ambient conditions.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on thermal performance of a pumped two‐phase battery cooling system using mini‐channel cold plate

Fang

et al. 2021

Int J Energy Res

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Summary This study presents an experimental investigation on a pumped two‐phase battery cooling system using R1233zd(E) as the refrigerant. The thermodynamic cycle of the system, together with the heat transfer and pressure drop characteristics of the mini‐channel cold plate, were analyzed under different conditions. Results showed that the pressure rise of the pump was increased under higher heat flux and mass flux, and the overall system pressure was elevated when the coolant bath temperature was raised. The effects of the mass flux on the overall heat transfer coefficient of the cold plate were different under various heat fluxes, while pressure loss of the cold plate showed a dramatic rise after the heat flux was over 2 W·cm−2. The average temperature of the cold plate was generally decreased with the increasing mass flux, while the maximum temperature difference was nearly constant when the heat transfer was dominated by single‐phase forced convection. However, the maximum temperature difference could be lowered after flow boiling became dominant. In addition, the local heat transfer characteristics for different channels and the temperature uniformity in the cold plate were investigated. It was found that the local temperature was increased and then stabilized along the flow direction, while the local heat transfer coefficient was increased monotonously. Meanwhile, lower local temperature and higher heat transfer coefficient were found in the upper channel for the intensive boiling with lower mass flux which compared to the middle channel. Novelty Statement This study investigated the performance of a pumped two‐phase battery cooling system using mini‐channel plate under higher heat flux and discussed the reasons for wall temperature variation and temperature uniformity under different heat transfer mechanisms.

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Development and analysis of a pump-driven loop heat pipe unit for cooling a small data center

Zhou

Wei

2017

Applied Thermal Engineering

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Experimental analysis of a novel cooling system driven by liquid refrigerant pump and vapor compressor

Cited by 35 publications

References 9 publications

Energy savings of hybrid dew-point evaporative cooler and micro-channel separated heat pipe cooling systems for computer data centers

Energy savings of hybrid dew-point evaporative cooler and micro-channel separated heat pipe cooling systems for computer data centers

Experimental investigation on thermal performance of a pumped two‐phase battery cooling system using mini‐channel cold plate

Development and analysis of a pump-driven loop heat pipe unit for cooling a small data center

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