Zhengrong Li’s research while affiliated with Tongji University and other places

... It can be seen, from relation (18), that the value of the thermal transfer coefficient , and the thermal resistance , depend directly, respectively inversely proportionally, on the thermal conductivity coefficient. Considering the empirically deduced formulas (14) and (15), it is found that these insulation characteristics of the studied composite materials can be tentatively programmed in the production process by choosing an insert and a suitable insert concentration. ...

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HEAT TRANSMISSION THROUGH WALLS OF COMPOSITE MATERIAL WITH CLAY MATRIX

... Windows are responsible for about 30-50% of the heat loss through typical building envelopes, depending on their size and distribution in each building [20,21]. This number fluctuates, especially with differing window types and the number of windows in the building. ...

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Balancing the Energy Efficiency Benefits of Glazed Surfaces: A Case Study

... The OE of a building predominantly hinges on its function, regional climate, building configuration, material characteristics, and occupancy characteristics (Ang et al., 2022). Previous research mainly concentrated on the building and climate aspects, neglecting the human perspective (Jia et al., 2023). Building energy simulations mainly rely on the ASHRAE occupancy schedule as default input data, which fails to accurately capture variations in occupancy patterns across diverse countries and climate zones, in turn, contributing to a distortion in the simulation results (Zhang et al., 2018). ...

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Rethinking Building Energy Use from the Occupant Aspect

... The multibody model is a biomechanical motion analysis model that decomposes the system into a set of rigid bodies connected by joints, which can be used to study the impact of overall motion analysis on a specific joint (Ma et al., 2023). Cappozzo (Cappozzo, 1984), Callaghan et al. (Callaghan et al., 1999)and Kuai et al. (2017a) used different lumbar multibody models to simulate and predict the lumbar spine load under different movements. ...

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Analysis of lumbar spine loading during walking in patients with chronic low back pain and healthy controls: An OpenSim-Based study

... In recent years, with growing awareness regarding environmental issues and energy conservation, the demand for energy-saving buildings has increased greatly [1][2][3]. The parietodynamic wall, as a new type of dynamic insulation technology, has attracted widespread attention in the construction industry [4][5][6]. ...

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Simulation of thermal radiation effects on the thermal properties of parietodynamic walls using an innovative model

... Additionally, investigations into phenomena such as condensation on radiant ceilings [19] and energy consumption comparisons with traditional systems [20] provide valuable insights for system design and optimization. Furthermore, studies by Cholewa and Zhang [21,22], Zhao [23], and Zhang [24] have explored the thermal comfort and energy-saving potential of radiant heating and cooling systems. These investigations underscore the effectiveness of radiant systems in achieving superior energy efficiency and comfort levels, especially when combined with optimized control strategies [25]. ...

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Experimental Study on Heat Transfer Characteristics of Radiant Cooling and Heating

... The studies cited above demonstrate the strong trend in the development of reference profiles, based on actual data, to be used as input data in thermal and energy simulations of buildings. For the development of such profiles, in addition to obtaining the actual data in field surveys, it is necessary to apply some data mining techniques capable of finding the recurring patterns of behaviour within the sample (Lian et al., 2023;Khani et al., 2021;Zhou et al., 2021). ...

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Finding patterns of occupant behaviour in actual data for thermal performance simulation: a case study in low-income houses

... The thermal performance of 3D-printed building components lies in the intersection of material properties, wall designs, and printing process as mentioned in [6][7][8]. Unlike conventional mixes, 3DPC demands fresh properties such as high flowability and shape retention, achieved through high water-to-binder ratio and low aggregate-to-binder ratio, influencing its thermal properties [9]. Cuevas et al. [10] investigated the effect of sustainable waste glass and thermoplastic microspheres in 3DCP while replacing basalt aggregate in mix design and reported 40% improvement in thermal performance and reduction in concrete density up to 1400 kg/m 3 . ...

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A comprehensive assessment of thermal performance of 3D printed concrete lattice walls

... By discerning occupant energy utilization patterns, it becomes feasible to adapt energy consumption to meet the preferences of occupants while concurrently curbing overall energy usage. Energy usage adjustments can be made based on physical environmental parameters (temperature, lighting, and humidity) and occupant preferences by creating their personalized comfort profile (e.g., by monitoring it with sensors or surveys) [35]. ...

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A Comprehensive Review of Sensor-Based Smart Building Monitoring and Data Gathering Techniques

... Transmittance for solar radiation through tree canopies is primarily determined by leaf density, which can be quantified by point cloud data of leaves from Light Detection and Ranging (LiDAR) surveys [97][98][99][100][101][102][103][104][105]. Some studies have leveraged LiDAR not only to obtain information about leaf density but also about the orientation and inclination of leaves, which influence transmittance [106][107][108][109]. While LiDAR provides detailed and comprehensive information on the structures of tree canopies, it faces scalability challenges due to high equipment costs and the limited availability of open and crowdsourced data providers. ...

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A panorama-based technique to estimate sky view factor and solar irradiance considering transmittance of tree canopies