Search results

The ever-increasing demand and consumption of energy and the effects of global warming with its long-term comrade, climate change, is obvious today than ever before. In today’s world, naturally-ventilated buildings hardly provide the satisfaction that occupants need and wish for. It’s on this backdrop that the study aims to investigate how responsive buildings on the Kwame Nkrumah University of Science and Technology, Kumasi, Ghana campus are to its warm humid climate and assess students thermal comfort levels.

Quantitative approach was adopted for the study. Empirical investigation was carried out using the survey approach. In total, 14 buildings (offices, classrooms and halls of residences) were assessed using the Mahoney Tables. Again, subjective thermal perceptions of occupants in the halls of residences was sought. A total of 214 valid questionnaires were used for the analysis.

Adaptive principles like the Mahoney Tables are not followed in recent years. Even where these principles have been followed, indoor spaces were still found to be uncomfortable. In total, 58 per cent of the occupants in all the three halls of residence voted in the comfort band: an indication unacceptable sensations. Warm sensation votes (44 per cent) was more than cool sensation votes (29 per cent). In warm sensation, 39 per cent of the subjects preferred cooler environment. The occupants felt that opening windows and the use of fans could keep them comfortable. Moreover, 48 per cent of the subjects voted that their fans and windows were effective.

The papers contribution to the body of knowledge is the provision of empirical evidence in the field of adaptive designs and thermal comfort. There is a strong indication from the results that human activities in terms of blatant disregard for laid down design principles coupled with the worsening situation of global warming is making interior spaces ever uncomfortable.

The study ' s purpose is to review and discuss limitations of “strategic niche management” (SNM) success factors in relation to the experiences of an enterprise network to improve niche development for integrated design concepts.

The emergence of a successful passive house innovation network in the Flemish Region is described. The innovation journey of the network is related to success factors detected in SNM literature regarding market niche development.

The study identifies additional success factors for systemic innovation, such as involving small- and medium-sized innovators and demonstration projects and using a dedicated regional enterprise network.

The qualitative analysis specifically reflected on SNM success factors such as envisioning, learning, and network composition and formation. The study confirms the importance of these success factors by means of one detailed innovation journey. It identifies additional success factors and discusses opportunities to improve the relation of SNM literature with other seminal fields.

Government seed money is important in providing a breakthrough in enterprise network initiatives. A focus on architectural innovation instead of technology innovation is to be preferred for stimulating integrated design concepts.

The paper addresses the relevance and limitations of SNM success factors during the formation of enterprise networks. The study shows how an integrated design approach was used to cluster innovation opportunities and to inspire innovation development and collaboration for know-how development between multiple players.

To critically compare three future weather year (FWY) downscaling approaches, based on the 2009 UK Climate Projections, used for climate change impact and adaptation analysis in building simulation software.

The validity of these FWYs is assessed through dynamic building simulation modelling to project future overheating risk in typical English homes in 2050s and 2080s.

The modelling results show that the variation in overheating projections is far too significant to consider the tested FWY data sets equally suitable for the task.

It is recommended that future research should consider harmonisation of the downscaling approaches so as to generate a unified data set of FWYs to be used for a given location and climate projection. If FWY are to be used in practice, live projects will need viable and reliable FWY on which to base their adaptation decisions. The difference between the data sets tested could potentially lead to different adaptation priorities specifically with regard to time series and adaptation phasing through the life of a building.

The paper investigates the different results derived from FWY application to building simulation. The outcome and implications are important considerations for research and practice involved in FWY data use in building simulation intended for climate change adaptation modelling.

The paper aims to investigate the comfort-related performances of an innovative solar shading solution based on a new composite patented material that consists of a cement-based matrix coupled with a stretchable three-dimensional textile. The paper’s aim is, through a performance-based generative design approach, to develop a high-performance static shading system able to guarantee adequate daylit spaces, a connection with the outdoors and a glare-free environment in the view of a holistic and occupant-centric daylight assessment.

The paper describes the design and simulation process of a complex static shading system for digital manufacturing purposes. Initially, the optical material properties were characterized to calibrate radiance-based simulations. The developed models were then implemented in a multi-objective genetic optimization algorithm to improve the shading geometries, and their performance was assessed and compared with traditional external louvres and overhangs.

The system developed demonstrates, for a reference office space located in Milan (Italy), the potential of increasing useful daylight illuminance by 35% with a reduced glare of up to 70%–80% while providing better uniformity and connection with the outdoors as a result of a topological optimization of the shape and position of the openings.

The paper presents the innovative nature of a new composite material that, coupled with the proposed performance-based optimization process, enables the fabrication of optimized shading/cladding surfaces with complex geometries whose formability does not require ad hoc formworks, making the process fast and economic.

The purpose of this paper is to analyse thermal comfort and the thermal environment in naturally ventilated classrooms. Specifically, the aims of the study were to identify the thermal environment and thermal comfort of respondents in naturally ventilated university classrooms and compare them with the ASHRAE and Indonesian National Standard (SNI); to check on whether the predicted mean vote (PMV) model is applicable or not for predicting the thermal comfort of occupants in naturally ventilated university classrooms; and to analyse the neutral temperature of occupants in the naturally ventilated university classrooms.

The study was carried out at the new campus of Faculty of Engineering, Hasanuddin University, Gowa campus. A number of field surveys, which measured thermal environments, namely, air temperature, mean radiant temperature (MRT), relative humidity, and air velocity, were carried out. The personal activity and clothing properties were also recorded. At the same time, respondents were asked to fill a questionnaire to obtain their thermal sensation votes (TSV) and thermal comfort votes (TCV), thermal preference, and thermal acceptance. A total of 118 respondents participated in the study. Before the survey was conducted, a brief explanation was provided to the participants to ensure that they understood the study objectives and also how to fill in the questionnaires.

The results indicated that the surveyed classrooms had higher thermal environments than those specified in the well-known ASHRAE standard and Indonesian National Standard (SNI). However, this condition did not make respondents feel uncomfortable because a large proportion of respondents voted within the comfort zone (+1, 0, and −1). The predictive mean vote using the PMV model was higher than the respondents’ votes either by TSV or by TCV. There was a huge difference between neutral temperature using operative temperature (T_o) and air temperature (T_a). This difference may have been because of the small value of MRT recorded in the measured classrooms.

The research shows that the use of the PMV model in predicting thermal comfort in the tropic region might be misleading. This is because PMV mostly overestimates the TSV and TCV of the respondents. People in the tropic region are more tolerant to a higher temperature. On the basis of this finding, there is a need to develop a new thermal comfort model for university classrooms that is particularly optimal for this tropical area.

The purpose of this paper is to test an architectural studio pedagogy that originates from an experiment of a Summer School collaborative design studio, with participation of students, academicians and practicing architects, from seven Universities and five European countries.

This pedagogical method follows recommended education for sustainable development (ESD) model, by linking formal and informal learning, and targeting development of the key competences needed for promoting sustainable progress: participation and collaboration, along with inter- and trans-disciplinarity. Combining active participant observation method with descriptive survey research, the paper evaluates the perspective of a small sample size of 27 participating students, who worked with 15 professors alternately, during a two-week design studio course.

The results indicate that such a form of non-formal education has positive impact on acquisition of targeted competences, confirming the strategic role that non-formal education has in reaching quality education learning outcomes, and advocating for the adjustments of existing curricula towards a more collaborative educational approach in architectural design.

The modest sample size presents a limitation in reference to generalization of results, neverthless its data are valuable, particularly within the context of maximizing the development of sustainable development goals (SDGs).

This endeavour was a part of an on-going Erasmus + CBHE (Capacity Building in Higher Education) project entitled transforming architectural and civil engineering education towards a sustainable model (TACEESM). Organized non-formal educational model is seen as a testing laboratory that blends a conventional methodology of a design studio with a highly collaborative, international and multi-disciplinary approach.

In product modular design tasks, especially in the high-tech manufacturing industry, buyers and supplies play distinct roles, which may have different impacts on product architectural and modular innovation. Prior research has tended to view product innovation as a holistic concept, overlooking the importance of this differentiated influence. This study, from a modular design perspective, aims to clarify the impact of black-box supplier involvement on product architectural and modular innovation, as well as the influence of product modularity on these relationships.

Based on the theory of product modular design, this study decomposes product innovation into architectural and modular innovation from the perspective of the product internal structure to conduct in-depth theoretical analysis and model construction. A total of 276 valid questionnaires are collected from typical Chinese high-tech manufacturing firms and used to empirically test the constructed theoretical model using multiple hierarchical regression analysis.

The results show that black-box supplier involvement positively affects modular innovation and takes an inverted U-shape, as moderated by product modularity. However, the impact of black-box supplier involvement on architectural innovation shows contradictory differences at different modularity levels. Under a low level of product modular design, black-box supplier involvement has a negative impact on architectural innovation, but under a moderate level of modular design, it has a positive impact. After the degree of modular design exceeds a certain threshold, the impact gradually weakens.

The results provide valuable insights for managers, highlighting the need to avoid oversimplifying the innovation impact of black-box suppliers solely based on overall product innovation. Instead, a more accurate assessment of the innovation contributions of both the buyer and supplier should be based on the degree of architectural and modular innovation. Additionally, the findings suggest that managers should consider the alignment between their company's product modular design features and innovation priorities (i.e. modular innovation or architectural innovation) when determining an appropriate supplier collaborative development strategy.

This study not only reveals the different impacts of black-box supplier involvement on architectural and modular innovation, but also proves the significant synergistic innovation effect of the relationship between black-box supplier involvement and product modularization. It constitutes an enriched and deepened exploration in the existing research on supplier involvement in product innovation.

Colleges and universities increasingly have the mandate and motivation to integrate sustainability into their curricula. The purpose of this paper is to share the strategy used at the University of Pennsylvania (Penn) and provide an evaluation of its success and guidance to others creating similar programs.

This article summarizes Penn’s Integrating Sustainability Across the Curriculum (ISAC) program. ISAC pairs Penn undergraduate research assistants with instructors in a collaborative effort to incorporate sustainability into courses.

In concert with other Penn initiatives (a course inventory, faculty discussion groups and a research network), ISAC increases Penn’s sustainability-related courses and creates dialogue regarding how various disciplines contribute to sustainability.

The program described in this article is replicable at other institutions. The authors demonstrate that the logistics of recruiting students and establishing the program are straightforward. Undergraduate students are on campus; their pay requirements are modest; and they are desirous of such research experiences.

The ISAC program inculcates a cultural and behavioral shift as students and faculty approach sustainability issues collaboratively, and it facilitates the development of a shared language of environmental sustainability. Such social implications are difficult to quantify, but are nonetheless valuable outcomes.

The faculty–student partnership used to facilitate the integration of sustainability into courses at Penn is original. The ISAC program provides a framework for engaging students and faculty in curriculum development around sustainability in a manner that benefits the student research assistants, the participating faculty and future students.

The purpose of this paper is to investigate moisture problems and defects which have been caused by condensation in historic buildings. Emphasis has been put on finding condensation possibility on the external walls and inside temperature and humidity.

A third-part study including survey method to identify moisture problems and exhaustion, then determining indoor and outdoor temperature and relative humidity in a two-part survey within four days periods, and finally computer modeling and simulation to finding condensation possibility in the building walls by WUFI and THERM software.

Results indicated that the case study has serious defects and almost 7.5°C differences (Δt) and about 6 percent relative humidity differences (Δh) between indoor and outdoor temperature, and from analyzing computer simulations, condensation risk occurrence between wall layers is witnessed. Also this study shows that some climatic methods applied by traditional architects despite enhancing thermal comfort have caused damages and defects to the building envelope and structure. In this paper, the authors suggest a method to reduce condensation possibility by active ventilation for reducing temperature differences.

While there is a lock of technical researches and investigations about architectural heritages conservation, this study tries to perform a technical research and filling the gaps in this subject area.

This article observes how, in today’s common building practice, design practitioners seldom utilize the expertise of researchers in building‐related fields. The lack of the collaboration may be due as much to the “applicability gap” between research and practice as to the lack of a clearly defined role of researchers in building design. Most institutions’ research groups and facilities planning offices are generally not set up to collaborate with the design and engineering professionals. This study, however, found design teams’ collaboration with academic and research institutions to be instrumental in the successful development and implementation of technological innovations in architectural projects. It discusses the findings and provides partnership strategies between the institutions, as large‐building owners, and the building professionals, as design providers.