Ventilation and air conditioning system of deep-buried subway station in sub-tropical climates: Energy-saving strategies

Yin, Hua; Yang, Caiyun; Yi, Linzi; Yu, Junyan; Wu, Yingfeng; Yu-jiao, Deng; Tang, Zhihua

doi:10.1016/j.applthermaleng.2020.115555

Cited by 33 publications

(12 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although current existing HVAC systems in UMSs can exhaust redundant heat and provide fresh air, it is not enough to achieve metro environmental control solely based on providing adequate capacity to satisfy given criteria [25,107]. On the contrary, it is necessary to achieve the overall optimization of the entire HVAC system.…”

Section: Discussion and Future Workmentioning

confidence: 99%

A review on available energy saving strategies for heating, ventilation and air conditioning in underground metro stations

You

Zhang

et al. 2021

Renewable and Sustainable Energy Reviews

View full text Add to dashboard Cite

Section: Discussion and Future Workmentioning

confidence: 99%

A review on available energy saving strategies for heating, ventilation and air conditioning in underground metro stations

You

Zhang

et al. 2021

Renewable and Sustainable Energy Reviews

View full text Add to dashboard Cite

“…But the station with PSDs cannot use piston ventilation in transition season, the fresh air load of the station is large. A survey by Yin et al found that the fresh air load at the station was as high as 34%-37% [23]. It should be noted that the PSD has air leakage problem, because it is not completely sealed [24].…”

Section: How To Use Piston Wind From Platform Doorsmentioning

confidence: 99%

A review of piston effect and energy saving of subway environmental control system

Jin

Liu

et al. 2022

E3S Web Conf.

View full text Add to dashboard Cite

The piston effect and piston wind generated by subway train operation are closely related to the energy consumption of subway environmental control system. With the rapid development of subway industry, under the premise of meeting the needs of passengers, using piston wind to reduce station energy consumption has become one of the focuses of current research. This paper collects and sorts out the domestic and foreign literature related to the piston effect. Firstly, the relevant information of piston effect and subway environmental control system is summarized and analyzed. Secondly, the utilization strategy of piston wind is emphasized in this paper. These strategies are mainly related to the design of ventilation shaft, the speed of train, the selection of platform door and the installation of door curtain. Reasonable use of these strategies can reduce energy consumption for the station. Finally, the utilization principle of piston wind was proposed in this review. When the piston wind meets the demand, the piston ventilation should be a priority choice, compared with mechanical ventilation. Evaluating whether the piston wind meets the needs of use, mainly through these parameters as the judgment basis, such as air volume, temperature and humidity, carbon dioxide concentration and particle concentration.

show abstract

“…It spent 35%-42% more electricity for householders [2], and even HVAC is utilized to provide grid services [3]. Many efforts on energy saving of air conditioning systems have been conducted, such as dynamic setting temperature, 59.1% of energy consumption saving [4], ventilation and variation law of 30% reducing energy consumption [5], 8.6% of conserved energy of adaptive model [6], 11%-30% extended driving range of utilizing air re-circulation [7], 38% reduced electric energy of M-cycle evaporative cooling [8], 15% potential energy saving of lightweight thermoelectric [9], 50% recover energy of exhausted air [10], PCA-GMMs has 99% fault diagnosis correct rates [11], 6.4% reducing energy consumption with stratum ventilation [12], 12.3%, 38.5% and 221.9% energy efficiency improvements in three cities [13], 4%-12.4% decreasing power consumption using a evaporative cooling of condenser of a split-type AC [14], balance on energy saving and thermal comfort on a BEV by 10% slow down, energy gain reached 2.2 kWh [15], and 20% reducing fuel consumption on home appliances (including ACs) using a hybrid PV, diesel generator and batteries [16].…”

Section: Introductionmentioning

confidence: 99%

IoT-Based Air Conditioning Control System for Energy Saving

Waluyo¹,

Widura²,

Hadiatna³

et al. 2023

Int. J. Adv. Sci. Eng. Inf. Technol.

View full text Add to dashboard Cite

A high portion of electric consumption is air conditioning in householders or offices, reaching 42%. Therefore, it is necessary to automatically regulate air conditioning operations for energy saving using a control system, usually involving its hardware. As another option, the control system also involves electronic devices and software. This research developed an automatic control system using an ESP32 microcontroller integrated into the Blynk-based internet of things (IoT) for energy-saving air conditioning. The ESP32 was programmed using Arduino IDE and combined with a motion sensor to maximize energy saving. The motion sensor was a trigger to turn on the system. The recorded data were current, voltage, power, temperature, and motion detection. Based on the recorded power, the consumed energy was computed using trapezoidal and Simpson's composite rules of numerical integrations and ordinary methods. The testing was conducted in conventional, manual, and automatic operations. The yielded automatic control system operated adequately. The testing results revealed that the automatic operation saved 1.15 kWh (15.00%),0.99 kWh (13.66%), and 1.14 kWh (14.87%) average daily energy compared to the conventional operation, respectively, by using the ordinary, Simpson's composite rule, and trapezoidal composite rule computations. While the automatic compared to the manualmethodssaved1.68 kWh (20.44%), 1.78 kWh (22.14%), and 1.66 kWh (20.24%), respectively, for the same computations. Thus, the automatic system considerably saved energy compared to conventional and manual operations. Moreover, these energy savings were also higher than some previous research on air conditioning energy savings.

show abstract

Ventilation and air conditioning system of deep-buried subway station in sub-tropical climates: Energy-saving strategies

Cited by 33 publications

References 21 publications

A review on available energy saving strategies for heating, ventilation and air conditioning in underground metro stations

A review on available energy saving strategies for heating, ventilation and air conditioning in underground metro stations

A review of piston effect and energy saving of subway environmental control system

IoT-Based Air Conditioning Control System for Energy Saving

Contact Info

Product

Resources

About