Evaluation of heating efficiency and thermal comfort in special purpose vehicle cabins

The paper presents the integrated application of two methods during testing HVAC system efficiency in the cabins of HUMMER.1151A1 and OAR 1RL-128D offroad vehicles. Spatial measurements of change in air temperature per time have been performed at three vertical levels (head, knees, and feet) of the driver and passengers, which totals to 15 measuring points per vehicle. The main goal of testing was to evaluate accurately the efficiency of heating and cooling in relation time interval required to attain a designed temperature of comfort in the vehicle cabin, on condition that the difference in ambient temperature levels does not exceed 10 degrees C. With a view to more efficient evaluation of thermal comfort in vehicle cabins, the testing was performed also of predicted mean vote and predicted percentage of dissatisfied indices. Standard thermal comfort surveys ask subjects about their thermal sensation on a seven-point scale from cold (-3) to hot (+3). This research is carried out according to the methods based on ISO 7730, ASHRAE 55, and SORS 8419 standards

Evaluation of heating efficiency and thermal comfort in special purpose vehicle cabins

The paper presents the integrated application of two methods during testing HVAC system efficiency in the cabins of HUMMER.1151A1 and OAR 1RL-128D offroad vehicles. Spatial measurements of change in air temperature per time have been performed at three vertical levels (head, knees, and feet) of the driver and passengers, which totals to 15 measuring points per vehicle. The main goal of testing was to evaluate accurately the efficiency of heating and cooling in relation time interval required to attain a designed temperature of comfort in the vehicle cabin, on condition that the difference in ambient temperature levels does not exceed 10 degrees C. With a view to more efficient evaluation of thermal comfort in vehicle cabins, the testing was performed also of predicted mean vote and predicted percentage of dissatisfied indices. Standard thermal comfort surveys ask subjects about their thermal sensation on a seven-point scale from cold (-3) to hot (+3). This research is carried out according to the methods based on ISO 7730, ASHRAE 55, and SORS 8419 standards

Suburban Neighbourhood Adaptation for a Changing Climate (SNACC) final report

The report presents findings from the Suburban Neighbourhood Adaptation to a Changing Climate (SNACC) project. The project tested the effectiveness, feasibility and acceptability of a range of adaptations to the physical environment (i.e. to homes, gardens, and public spaces) that could be used to both mitigate and adapt to climate change in the UK

Psychological and physiological human responses to simulated and real environments: A comparison between Photographs, 360° Panoramas, and Virtual Reality

[EN] Psychological research into human factors frequently uses simulations to study the relationship between human behaviour and the environment. Their validity depends on their similarity with the physical environments. This paper aims to validate three environmental-simulation display formats: photographs, 360° panoramas, and virtual reality. To do this we compared the psychological and physiological responses evoked by simulated environments set-ups to those from a physical environment setup; we also assessed the users' sense of presence. Analysis show that 360° panoramas offer the closest to reality results according to the participants' psychological responses, and virtual reality according to the physiological responses. Correlations between the feeling of presence and physiological and other psychological responses were also observed. These results may be of interest to researchers using environmental-simulation technologies currently available in order to replicate the experience of physical environments.This work was supported by the Ministerio de Economia y Competitividad. Spain (Project TIN2013-45736-R).Higuera-Trujillo, JL.; López-Tarruella Maldonado, J.; Llinares Millán, MDC. (2017). Psychological and physiological human responses to simulated and real environments: A comparison between Photographs, 360° Panoramas, and Virtual Reality. Applied Ergonomics. 65:398-409. https://doi.org/10.1016/j.apergo.2017.05.006S3984096

The perceived credibility of architectural representations

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Assessing perceived credibility of traditional and computer generated architectural representations

This paper presents a study that investigated whether computer generated representations are perceived as more credible means of communicating design than traditional forms of representations. Architects, other professionals, and elected members of the public assessed two computer generated and two hand drawn forms of representation using semantic differential scales. Results show that computer generated photomontage is perceived as the most credible and perspective drawing and as the least credible form of representation. Statistical analysis revealed a remarkable resemblance between the responses by the public and professionals and clear differences between these two groups and architects' perceptions. © 2008 Elsevier Ltd. All rights reserved