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1 – 6 of 6Babu Rajeswaran and Thirumaran Kesavaperumal
Entrance edifice of the institutional campus artifice as the visible representation of status in their society. The design shall stand to show the status of the person who…
Abstract
Entrance edifice of the institutional campus artifice as the visible representation of status in their society. The design shall stand to show the status of the person who develops the setting, it could signify the power of the person or the entire place, and it could sometimes support certain cosmological belief system that prevails in that culture too. This study intended to identify the entrance edifice Physical features that influence observer's perception of the image of the institutional campus. To accomplish this, physical features of the entrance edifice and its characters were identified and developed into questionnaire material. A logistic regression model was adopted to analyze the Physical features of Entrance Edifice. The findings found the followings: (i) Physical features of Entrance Edifice influence the Visual perception of the Institutional Campus. (ii) The Physical features were found to impact the Visual perception of the Institutional campus in the order of Form Identity, Architectural Elements, Scale and Portion, color and material. These variances are based on the observers' perception, which can be integrated into the Institutional Campus Entrance Edifice design to strengthen the Image of the Institutional campus. It is clear that Entrance Edifices have the potential to build the image for a greater content and purpose through its Form Identity, Architectural Elements, Scale and Portion, color and material. Nevertheless, the entrance design could be a powerful element to build up the image of the physical settings it serves.
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Thirumaran Kesavaperumal, Kiruthiga Kandasamy and Renganathan Ramasubramanian
The degradation of a town’s traditional architectural settings is a prominent issue in the historic towns that possess a rich heritage and legacies of architectural character in…
Abstract
Purpose
The degradation of a town’s traditional architectural settings is a prominent issue in the historic towns that possess a rich heritage and legacies of architectural character in its urban fabric that have developed over the course of its evolution. Resident participation in built-heritage conservation can be explained in terms of deliberate acts. Thus, this study aims to analyse the attitudes of residents on the conservation of built heritage (ARCBH) in the historic town of Kanchipuram.
Design/methodology/approach
The historic temple town of Kanchipuram has been surveyed and focused in this study. A questionnaire was designed to investigate the ARCBH in Kanchipuram. Data were collected and analysed with the help of structural equation modelling and AMOS software. A structural equation model was developed, and hypotheses were framed for an empirical study.
Findings
The findings indicate that the ARCBH has an effective relationship with practical issues that occur in traditional architecture, built-heritage attachment and an awareness of existing heritage schemes.
Social implications
The study results indicate that considering resident attitude and attachment is important. In addition, the results provide useful insights for formulating practical measures relevant to built-heritage conservation.
Originality/value
There has been no attempt to come up with practical implications from the attitudes of residents on the conservation of built-heritage in the historic temple towns of Tamil Nadu, India.
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Subhashini S., Thirumaran Kesavaperumal and Masa Noguchi
Occupants dwelling in hot climatic regions of India for a longer term are tolerable to high temperature levels than predicted by American Society of Heating, Refrigerating and…
Abstract
Purpose
Occupants dwelling in hot climatic regions of India for a longer term are tolerable to high temperature levels than predicted by American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) standards. The purpose of this study is to evaluate the thermal sensations (TS) and neutral temperature of the occupants in naturally ventilated (NV) and air-conditioned (AC) classrooms of two technical institutions located in the same premises in the suburbs of Madurai. The main focus of this study is to understand the occupants’ behaviour in response to the thermal conditions of the educational buildings particularly in the warm and humid climatic zone of Madurai.
Design/methodology/approach
This research collected data through field studies. The data included 383 survey questionnaires from NV classrooms and 285 from AC classrooms, as well as on-site measurements of interior and exterior weather conditions. The TS results show that the students preferred well-designed NV classrooms than AC classrooms. A new adaptive comfort equation derived from this study can be applied to NV classrooms in warm and humid climates where mean outdoor temperature exceeds 40°C.
Findings
The neutral temperature derived for NV classrooms in Madurai ranged from 29°C to 34°C. Thus, the occupants in the NV classrooms of the higher learning educational institutions in the warm and humid climatic region of Madurai can adapt well to higher indoor temperature levels than predicted by ASHRAE comfort levels with minimum adjustments.
Research limitations/implications
The study was limited to only occupants in two premier higher learning technical educational institutions located in Madurai region within 5–10 km within the city limits to understand the implications of microclimate with respect to the urban context. Thus, further research is required to examine the tendency under local conditions in other regions beyond those applied to this study.
Social implications
The findings of this study showed that occupants in higher learning educational intuitions in Madurai prefer NV classrooms than AC classrooms. Therefore, with rising demands of energy use for mechanical ventilation and the associated high cost for running AC buildings, architects should prioritize the design of energy efficient buildings through the optimal use of passive design strategies for ventilation and thermal comfort. This study gives a base data for architects to understand the adaptive limitations of occupants and design NV buildings that can promote natural ventilation and provide better thermal environments that can help increase the productivity of students.
Originality/value
This paper was an attempt to develop the adaptive comfort model for NV classrooms in Madurai regions. There has been no attempt to identify the adaptive comfort levels of occupants in higher learning technical educational institutions located in warm and humid climatic region of India.
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Subhashini Selvaraj and Thirumaran Kesavaperumal
Heat gain in buildings occurs due to heat transfer through the building fabric or envelope, especially the walls and roof. The purpose of this paper is to identify and recommend…
Abstract
Purpose
Heat gain in buildings occurs due to heat transfer through the building fabric or envelope, especially the walls and roof. The purpose of this paper is to identify and recommend the suitable wall materials for better thermal performance in buildings in warm and hot climatic zones of India. As India lies between the tropic of cancer and the equator, the solar radiation from the sun falls more on the walls than the roofs of the buildings. Thus, it is imperative to protect the walls from heat gain to promote thermal comfort in naturally ventilated buildings and reduce the energy loads due to artificial cooling systems in air-conditioned buildings.
Design/methodology/approach
In this paper, an investigation of heat flow characteristics in steady-state and the transient state for five different uninsulated wall structures using computational fluid dynamics (CFD) software has been carried out. The climate conditions at Madurai, India have been considered for this study.
Findings
The findings of the study revealed that aerated autoclaved concrete (AAC) and hollow clay blocks (HCB) for external walls in naturally ventilated buildings in warm climatic regions could improve the building’s thermal performance index and reduce peak indoor operative temperature by about 6°C–7°C. The results of steady-state and transient state analysis were found to be in good agreement with the results of the reviewed literature.
Research limitations/implications
Over the past few decades, only very few architects and builders have been successful in influencing their clients to accept alternate materials such as AAC blocks, HCB, stabilized earth blocks, adobe blocks, fly-ash bricks as an alternate to conventional bricks in an attempt of highlighting their benefits, such as; materials that are easily available, more energy-efficient, can withstand the extreme weather conditions, promote thermal comfort and cost-effective. This paper provides strong evidence that AAC and HCB blocks are the most appropriate materials for improving the thermal performance of envelope walls in regions where the outdoor temperatures are above 40°C.
Originality/value
This paper has made an attempt to identify the appropriate wall materials for effective thermal performance in warm and hot climates. A comparative analysis between five different wall types under the existing solar conditions has been analyzed using CFD simulation study in steady-state and transient conditions under summer conditions and the appropriate wall materials have been suggested. There has been no attempt carried out so far to analyze the thermal performance of different walls using 24 h transient approach in CFD.
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Kiruthiga Kandasamy and Thirumaran Kesavaperumal
Urban heritage management is motivated by the alarming rise in destruction of historic buildings; the implementation of pointless urbanization plans and uncontrolled commercial…
Abstract
Purpose
Urban heritage management is motivated by the alarming rise in destruction of historic buildings; the implementation of pointless urbanization plans and uncontrolled commercial development threatening to overwhelm our historic built heritage. Hence, there is an immediate need for urban heritage planning in historic towns, especially in India where urban growth is rampant. The purpose of this paper is to examine how development in the historic temple town of Kumbakonam can be managed by using a holistic approach that preserves the town’s historic flavor, sacred traditions and built heritage.
Design/methodology/approach
The historic center of Kumbakonam has been surveyed and is the focus of this study. Utilizing a case study methodology, the authors made multiple field visits to document the special heritage character of the town, conducted interviews with people living in the study area and evaluated the existing policies and guidelines for development of Tamil Nadu in view of the holistic approach.
Findings
The study reinforced the belief that the historic temple town of Kumbakonam has significant urban heritage worthy of preservation. However, due to chaotic and ill-planned urban development, changing land use, intrusion of contemporary architectural styles, commercialization and the lack of strong policy guidelines for holistic management, the special heritage character of the town is threatened with continued destruction.
Practical implications
This research on Kumbakonam can help urban planners to develop viable heritage management programs for other historic temple towns of Tamil Nadu. The authors describe and evaluate some guidelines for retaining the social and cultural flavor as well as the built heritage of towns like Kumbakonam by taking a holistic approach.
Originality/value
Up to now, there has been no attempt to come up with comprehensive management guidelines for integrating the unique urban heritage characteristics of the historic temple towns of Tamil Nadu in plans for urbanization.
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Purushothaman A. Purushothaman A. and Thirumaran K. Thirumaran K.
Vernacular architecture is an architectural style of buildings that were constructed by artisanal builders who lacked formal qualifications, used local materials and had a deep…
Abstract
Purpose
Vernacular architecture is an architectural style of buildings that were constructed by artisanal builders who lacked formal qualifications, used local materials and had a deep understanding of local climatic needs. This approach addressed climatic, energy, materials and construction issues in a low-cost way. Building interiors were often made comfortable by using passive internal climate regulation methods, which could be key to resolving some of the current issues of the modern world.
Design/methodology/approach
Tamil Nadu is a land full of local architecture, with Konearirajapuram settlement a thriving specimen of its vernacular architecture, as one of the original Vathima villages (planned Brahmin villages). Here the authors present an appraisal of this settlement's native architecture with its various passive design elements. A questionnaire survey was also conducted among local residents, living in both vernacular and contemporary residential buildings, to understand the quality of indoor environmental comfort in the different building types (single courtyard, multiple courtyards and multiple story houses with courtyards).
Findings
The results of this study show that energy-efficient bioclimatic design strategies of traditional buildings can be analyzed with the help of climatic data and analysis tools such as Mahoney tables and Olgyay's bioclimatic chart. The study shows that vernacular design techniques and principles conserve more energy than modern buildings. The findings suggest that practical solutions for improving contemporary residential developments can be found in traditional architectural approaches and that these approaches should be incorporated in new developments to achieve energy efficiency and a sustainable future.
Research limitations/implications
A detailed survey and the user preferences are plotted in detail in this paper; similarly, Mahoney table and its requirements are analyzed with respect to context; and the results are elaborated and justified.
Originality/value
This study analyzes an entire settlement of Konearirajapuram with 300 units of vernacular residences high in comfort even at extreme climates. Assessment is carried in both qualitative case and quantitative case. Even though there are no previous studies analyzed to identify the effectiveness of the artisanal builders of bioclimatic architecture. Hence, this study brings out the solution for current energy problems from the traditional settings, because the traditional buildings requires no active systems for indoor comfort except a fan, which is negligible in terms of energy use.
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