Strategies for improving the thermal performance and comfort levels of a kindergarten in the mountains of Nepal

Located on the Annapurna trekking trail in Nepal, Siurung is a remote mountain village where outside influences are almost non-existent. The thermal comfort levels of a recently-constructed kindergarten are well below international standards because of the climate and poor building envelope. A TRNSYS model of the kindergarten has been used to predict the current occupant comfort levels and subsequently determine the most effective way to alter the traditional construction methods to improve comfort levels. Improvements investigated were: reduced air infiltration, roof and wall insulation (separately and together), installation of a smokeless stove and a combination of all strategies.The model predicted that in the current building the PMV ranges from -1.94 in October to - 0.99 in July. It also predicted that the current PPD (%) ranges from 100 in January to 26 in July. With the combination of strategies, the predicted PMV values were all improved to between -1.08 and +0.34, and the PPD values of all months except January were reduced to below 10%. When improving the comfort levels of an existing school, reducing air infiltration, adding roof insulation and installing a smokeless stove are the most effective strategies. When constructing a new school, however, reducing air infiltration and adding insulation to the walls and roof are the most effective and feasible strategies. If a smokeless stove can be afforded and transported to the site, it is recommended that one be installed as it provides a more significant improvement than any other single strategy.

Thermal comfort in outdoor places a multicultural perception

The outdoor places are receiving more importance being contributing in the social cohesion and sustainability within societies. Providing comfortable sustainable urban places is an important factor affecting their success especially in multicultural areas where climatic conditions are perceived differently according to the diversity of users. Different design elements such as design form proved to be able to improve the outdoor thermal comfort. However, the integration of the climate dimension in the design process of outdoor places is lacking due to insufficient interdisciplinary work between urban climatology, and urban design. The main aim of the research is to examine the influence of cultural and climatic background on users’ thermal sensation and comfort within the same context. The methodology of the research is provided through quantitative analysis of a case study in Melbourne, Australia as one of the global cities characterized by the diversity and plurality of its population. The case study approach is adopted in order to examine the users’ thermal comfort within its contextual variables. Multiple sources of evidence such as climate measurements, questionnaires and observations are used to ensure the validity of results. The findings are to contribute to the quality and equality of design for outdoor urban places.

Effect of personal and cultural diversity on outdoor thermal comfort perception

The urban squares are the gathering places where people interact with each other. Therefore, they are seen as important places contributing in the integration and social cohesion within societies. To ensure equality in urban places, designers are to take into considerations the need of the diverse nature of different users. This task is hard especially in global cities where populations are characterized by their cultural plurality. To ensure the creation of successful urban places, the designer is to take the comfort of users into consideration. However, the outdoor thermal comfort is not easily assessed as it examines the climatic and personal variables for users. This paper aims to contribute in assessing the thermal comfort for users of different personal and cultural background in Melbourne city, Australia as one of the global cities characterized by the diversity and plurality of its population due to migration. A case study approach is adopted to examine the users’ thermal comfort within the contextual variables of Federation Square. Multiple sources of evidence such as climate measurements, observations and questionnaires will be used to ensure the validity of results. The findings are to contribute in the quality and equality of design for outdoor urban places in multicultural cities.

Effect of thermal adaptation on outdoor comfort perception

Thermal comfort in outdoor places has proven to have a strong relationship with their users’ attendance and behaviour [1]. Creating comfortable places is therefore to be considered a crucial part of the design process, as taking it into consideration help increasing the social integration between people and therefore fosters sustainability within cities [2]. With the increasing number of migrants within global cities, a new challenge has been facing thermal comfort studies. This challenge is related to the different cultural and climatic origins of those migrants and how they can adapt to the new climatic conditions they are to move in. This paper aims to explore the impact of thermal comfort adaptation on users’ thermal perception in multicultural cities. Consequently, a quantitative field study is applied in Melbourne city, Australia in order to investigate peoples’ outdoor thermal comfort. The analyses were based upon the measurement of climatic parameters that were monitored simultaneously with a questionnaire to determine users’ thermal comfort perception in relation to their time spent in the city. The findings of thermal comfort investigations could be applied into improving the quality of urban areas within global cities and therefore promote the integration within individuals in those societies.

Mohair research update 17 : wearer comfort of mohair textiles - does mohair have an allergy problem?

Many aspects of textiles affect the comfort or discomfort experienced by people. The effects of variations in thermal, moisture transmission, air permeability, size, fit, aesthetics and static electrical properties on textiles have been known for many years (Slater, 1977). Problems experienced with wearer comfort, both sensory and functional, have increased in commercial importance for all animal fibres. Surveys have shown that consumers report that prickle discomfort from wearing wool next to the skin is a negative market attribute for wool (IWS, 1993; Millard Brown, 2007).