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Analysis of energy saving optimization of campus buildings based on energy simulation

Dingding TONG, Jing ZHAO

《能源前沿（英文）》 2013年第7卷第3期页码 388-398 doi: 10.1007/s11708-013-0273-7

摘要： The energy consumption of campus buildings has specific characteristics, because of the concentrated distribution of people’s working time and locations that change in line with distinct seasonal features. The traditional energy system design and operation for campus buildings is only based on the constant room temperature, such as 25°C in summer and 18°C in winter in China, not taking into consideration the real heating or cooling load characteristics of campus buildings with different functions during the whole day and whole year, which usually results in a lot of energy waste. This paper proposes to set different set-point temperatures in different operation stages of public and residential campus buildings to reduce the heating and cooling design load for energy station and total campus energy consumption for annual operation. Taking a campus under construction in Tianjin, China as an example, two kinds of single building models were established as the typical public building and residential building models on the campus. Besides, the models were simulated at both set-point room temperature and constant room temperature respectively. The comparison of the simulation results showed that the single building energy saving method of the peak load clipping could be used for further analysis of the annual energy consumption of campus building groups. The results proved that the strategy of set-point temperature optimization could efficiently reduce the design load and energy consumption of campus building groups.

关键词： campus buildings set-point temperature energy simulation energy saving optimization

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Architect Robert Fan Wenzhao and the design of Chung Chi campus

Daqing GU

《结构与土木工程前沿（英文）》 2010年第4卷第4期页码 456-464 doi: 10.1007/s11709-010-0094-2

摘要： In about 1949, there was a large-scale migration of architects from the mainland to Hong Kong, China. Among them were those important figures in the modern Chinese architectural history such as Robert Fan, Su Gin-Djih, and Chu Pin. Their arrival at this colony had changed its architectural practice substantially from professional organization to actually built environment. Their unique contributions to Hong Kong’s modern architecture have been a new research interest in recent years. This paper tells a story about Robert Fan and his design of the Chung Chi College campus in the 1950s with an intention to reveal the multiaspects of the so called “migrant architects” through a single architectural event. The author tries to capture the intertwining relationship between the migrant architects and educators through the reconstruction of the recruitment process for a campus architect by Chung Chi College and to identify Mr. Robert Fan’s concept of campus planning with reference to his early design experience in the mainland of China.

关键词： Hong Kongβmodern architecture China’s mainlandβmigrant architects Robert Fan Wenzhao Chung Chi College campus planning and design

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Case study of data-oriented approach for building energy performance investigation

Jianjun XIA, He XIAO, Yi JIANG,

《能源前沿（英文）》 2010年第4卷第1期页码 22-34 doi: 10.1007/s11708-010-0024-y

摘要： The key parameters that may influence building energy performance is studied by comparing the building energy data of college buildings in two different regions (the USA and China). By introducing data-orientated approach, a study of a set of on-campus building energy demand and consumption is conducted for cooling, heating and electricity. In addition, the heating, ventilation and air conditioning (HVAC) and lighting systems are studied in great detail. The breakdown analyses of the current energy consumption data are used to focus the investigation on critical issues. The analysis shows that the energy consumption of college buildings in the USA can be 3–5 times more than that of college buildings in China. The over-high energy consumption in campus buildings in the USA is mainly caused by operation schedule, system style, cooling and heating counteraction and sensor/actuator faults in the control systems, which also leads to the discussion of energy difference on the concept of “full control” or “local improvement” in building environment control. The study also indicates that the building energy efficiency can only be achieved by adjusting the demand according to natural conditions, encouraging green life behaviors, and developing relative technical solutions coordinated with the thrift culture and human behavior.

关键词： USA counteraction on-campus building over-high sensor/actuator

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Pollutant reduction effectiveness of low-impact development drainage system in a campus

Shuhan Zhang, Yingying Meng, Jiao Pan, Jiangang Chen

《环境科学与工程前沿（英文）》 2017年第11卷第4期 doi: 10.1007/s11783-017-0969-8

摘要： Building a rainwater system based on the idea of low-impact development (LID) is an important aspect of the current “sponge city” construction in China. The “sponge city” concept emphasizes that the runoff can permeate the soil or be stored temporarily, and rainwater could be used again when it is needed. Beijing is one of the earliest cities to study rainwater harvesting and LID techniques in China. Through long-term monitoring of rainfall, runoff flow, and water quality of a campus demonstration project in Beijing, the runoff quantity and pollutant concentration variations have been analyzed. Furthermore, the runoff reduction effects of single LID measure, such as green roof, filtration chamber, and permeable pavement, have been investigated. Additionally, the overall reduction effectiveness of the LID system on the average annual rainfall runoff and pollution load has been discussed. Preliminary studies suggest that runoff pollutant concentration is positively correlated with the rainfall interval time, and the longer rainfall interval time leads to higher runoff pollutant concentrations. The very good outflow quality of the rainwater harvesting system could satisfy the reclaimed water quality standard for scenic entertainment use. The non-point-source pollution reduction effects of the LID system are obvious because the pollutants could be removed by filtration on the one hand and the pollution load could be reduced because of the significantly reduced outflow on the other hand.

关键词： Low-impact development Rainwater harvesting Non-point-source pollution reduction Campus

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Individual environmental behavior: A key role in building low-carbon communities in China

Ping JIANG, Hongjia DONG, Yun ZHU, Adila ALIMUJIANG, Zhenhua ZHANG, Weichun MA

《能源前沿（英文）》 2018年第12卷第3期页码 456-465 doi: 10.1007/s11708-018-0566-y

摘要：

People’s social behavior, especially environmental behavior, has a great impact on energy consumption and carbon emission. This paper explores both categories of individual factors (e.g., values, habits, education, motivation, etc.) and social factors (e.g., institution, infrastructure, encouragement, etc.), to clarify the correlation between them and their sub-factors. Low-carbon campus is a representative type of low-carbon community which is less difficult to build than other communities because university students are well-educated and, to some extent, are more environmental aware and more willing to change their behaviors. The energy-saving and environment-friendly policies implemented on campus are collected and overviewed in this paper. Additionally, the leaders and employees from the related administration departments are interviewed, and the data of electricity amount and water usage are analyzed and a well-designed questionnaire is handed out in a survey. The survey investigates the environmental knowledge, energy use habits, attitude toward low-carbon transformation, comments on the current institution and so on. The results show that different groups of students have varied levels of environmental knowledge, energy use habits, and attitude toward low-carbon campus management. To improve energy conservation and cut carbon emission radically, advices on building low-carbon community are also proposed including professional curriculums of environmental protection, economic initiatives, effect management, good communications, and sound infrastructures and facilities.

关键词： behavior change energy saving low-carbon community campus of Fudan University China