scholarly journals Measurements of Energy Consumption and Environment Quality of High-Speed Railway Stations in China

Energies ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 168
Author(s):  
Bin Qian ◽  
Tao Yu ◽  
Haiquan Bi ◽  
Bo Lei
Keyword(s):  
Energy Consumption ◽  
High Speed ◽  
Energy Use ◽  
District Heating ◽  
Energy Performance ◽  
High Energy ◽  
Public Buildings ◽  
Railway Station ◽  
High Speed Railway

In recent years, the energy performance of public buildings has attracted substantial attention due to the significant energy-saving potential. As a semi-open high-space building, the high-speed railway station is obviously different from other public buildings and even traditional stations in terms of energy consumption and internal environment. This paper investigates the current energy consumption situation and environmental quality of 15 high-speed railway passenger stations in China. Results show that the energy consumption of the high-speed railway station is between 117–470 kWh/(m2·a). The energy consumption of the station is related to the area and the passenger flow. The energy use of the station using district heating is higher than that of the station without district heating in the same region. The higher glazing ratio induces good natural lighting in the station, but the uniformity of the lighting in the station is not good. The acceptable temperature range of passengers in winter is larger than that in summer. The average air change rate of the high-speed railway station is 3.2 h−1 in winter and 1.8 h−1 in summer, which is the main reason of high energy consumption of the HVAC (Heating Ventilation Air Conditioning) system in this kind of building.

scholarly journals Improving the Energy Performance of Public Buildings Equipped with Individual Gas Boilers Due to Thermal Retrofitting

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1565
Author(s):  
Anna Życzyńska ◽  
Dariusz Majerek ◽  
Zbigniew Suchorab ◽  
Agnieszka Żelazna ◽  
Václav Kočí ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Energy Use ◽  
Energy Performance ◽  
Measured Data ◽  
Operating Conditions ◽  
Public Buildings ◽  
Energy Audits ◽  
The Impact

The article assesses an impact of thermal retrofitting on an improvement of the energy quality of public buildings in terms of their heating. The analysis covered a group of 14 buildings, including schools, kindergartens or offices, while energy audits were carried out for 12 of them. The indications of individual gas meters were the source of actual data for the assessment of changes in energy consumption indexes in operating conditions. The analysis showed a clear improvement in the energy quality of buildings; however, the actual effects were much lower than forecasted. The average forecasted decrease in energy consumption was supposed to be 64.3%, but the measured data showed only 37.1%. The investigation confirmed that the most complex refurbishing provided the most satisfactory decrease in energy consumption (51.4% of real decrease in energy consumption), while objects with partial thermal refurbishing reached an efficiency of only 21.8%. It was stated that in operating conditions, special attention should be paid to the manner of energy use, since different indicators of energy consumption can be obtained with the same parameters of building’s balance cover. The results obtained can be further utilized in thermal-refurbishment implementation procedures. Follow-up investigations on the impact of selected parameters on energy consumption are planned.

scholarly journals Characteristics of airflow in the platform with high-speed train passing through the underground railway station

2020 ◽  
Vol 165 ◽  
pp. 04075
Author(s):  
Qizhang Li ◽  
Yongliang Xie
Keyword(s):  
Energy Consumption ◽  
High Speed ◽  
High Speed Train ◽  
Air Velocity ◽  
Railway Station ◽  
High Speed Railway ◽  
Air Conditioning System ◽  
Environment Control ◽  
Underground Railway ◽  
Waiting Line

Underground high-speed railway station is becoming more and more popular in recent years, due to its advantage in relieving the tense situation of urban construction land. HVAC (Heating, Ventilation and Air Conditioning) system of underground railway station consumes large energy, therefore it is necessary to find a way to decrease the energy consumption in stations. Reasonable ventilation and air organization are the basis of energy-saving design of environment control system in stations. The energy consumption could be reduced greatly by utilizing the piston wind properly. In the present work, airflow characteristics in the station are investigated when high-speed train is passing through the underground railway station with CCM+ software. Results show that piston wind has different effects on airflow in the platform when the high-speed train is running. However, the air velocity in the platform is always lower than 5 m/s. In order to analyse the effect of piston wind on the airflow in the platform in more detail, the velocities and temperatures at waiting line are extracted. The air velocity near two ends of platform is larger and the similar results could also be observed for temperatures.

Energy performance and environmental quality of typical railway passenger stations in northern China

2016 ◽  
Vol 27 (3) ◽  
pp. 296-307 ◽  
Author(s):  
Ling Song ◽  
Ying Wang ◽  
Xiaofeng Li
Keyword(s):  
Energy Consumption ◽  
Environmental Quality ◽  
Energy Use ◽  
Average Energy ◽  
Northern China ◽  
Energy Performance ◽  
Flow Density ◽  
Public Buildings ◽  
Railway Passenger ◽  
Operation And Management

In recent 20 years, the energy performance of public buildings has attracted substantial attention due to the potential for significant energy savings. As semi-open structures, railway passenger stations are noticeably distinct from other public buildings. This paper investigated current energy consumption situation of 36 railway passenger stations in northern China. The energy consumption of the railway passenger stations was divided into high, medium and low levels, with the annual average energy use indexes being 423 kWh/m2, 222 kWh/m2 and 101 kWh/m2, respectively. Heating and cooling are the main energy consumers for major building services. The analysis also established a linear relationship between energy consumption and passenger flow density. However, the linear correlation was not evident where inconsistent operation and management occurred, as was often the case for small and medium sized stations. To further explore, the environmental quality which can reflect the operation and management levels was also tested in eight small- and medium-sized stations. The result showed that stations with high operational and management standards more closely approximated the linear curve and that stations with low standards were further away. Hence, the linear curve would represent the energy consumption levels of railway stations with high standards of operation and management.

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