Pioneering new indoor temperature standards: the Pakistan project

Nicol, Fergus; Roaf, Susan

doi:10.1016/0378-7788(95)00941-8

Cited by 144 publications

(72 citation statements)

References 3 publications

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“…As described earlier, previous researchers [11] studying other traditional people living in mountains of Nepal calculated a mean neutral temperature of 10.7 °C, which is over nine degrees lower than the coldest winter value determined by Ref. [15]. Despite the difficulty of comparing peoples' perceptions of comfort, the authors know from their own experience of living and working in Humla that people do feel cold and that this effects their health and well-being.…”

Section: Comfort Assessmentmentioning

confidence: 86%

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Improving comfort levels in a traditional high altitude Nepali house

Fuller

Zahnd

Thakuri

2009

Building and Environment

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Humla Province is a remote mountainous region of northwest Nepal. The climate is harsh and the local people are extremely poor. Most people endure a subsistence culture, living in traditional housing. Energy for cooking and heating comes from fuelwood, supplies of which are diminishing. In order to improve the indoor environment and reduce fuelwood use, smokeless stoves are being introduced to replace the open fire in Humli homes. There is some concern, however, that comfort levels may not be as acceptable with these stoves. The aim of this research was therefore to investigate ways in which the comfort levels in traditional Humli housing might be improved using simple and low cost strategies. Temperature data was recorded in four rooms of a traditional Humli home over a 12-day period and used with fuelwood data to validate a TRNSYS simulation model of the house. This model was then used to evaluate the impact on comfort levels in the house of various energy conservation strategies using PMV and PPD indicators. As a single strategy, it was found that reducing infiltration of outside air was likely to be more effective than increasing the insulation level in the ceilings. The most successful strategy, however, was the creation of sunspaces at the entrances to the living rooms. This strategy increased average internal temperatures by 1.7 and 2.3 °C. In combination with increased insulation levels, the sunspaces reduced comfort dissatisfaction levels by over 50%.

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Section: Comfort Assessmentmentioning

confidence: 86%

“…The longitudinal study of Ref. [15] of subjects in five climatic zones of Pakistan demonstrates this difference in perception. The winter comfort temperatures vary by 5.3 °C between the coldest and warmest zones.…”

Section: Comfort Assessmentmentioning

confidence: 99%

Improving comfort levels in a traditional high altitude Nepali house

Fuller

Zahnd

Thakuri

2009

Building and Environment

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“…From the results, the nearest predicted value of thermal neutrality T n to the 30.7 o C obtained in this study was the T n from Nicol and Roaf (1996) equation: 27.64 o C (T n = 17 + 0.38T oav ) which was less by as much as 3.06 deg C. It should be noted that all calculated T n values were less than the obtained value of 30.7 o C. The obtained T n in this study was therefore higher than the values predicted by these models. This indicated that the respondents tolerated higher temperatures by 3.06 deg C above the predictions from the examined Nicol and Roaf T n equation, 3.65 deg C above Griffith"s equation, 3.85 deg C above Humphreys" equation, 4.22 deg C above deDear"s equation and 4.42 deg C above Auliciems" equation.…”

Section: Discussionmentioning

confidence: 99%

“…Auliciems (1981) gave the equation T n = 17.6 + 0.31T oav while Griffiths (1990) provided the equation: T n = 12.1 + 0.534T oav . Also, Nicol and Roaf (1996) deduced the equation: T n = 17 + 0.38T oav , while the deDear et al (1997) equation is T n = 17.8 + 0.31 T oav .…”

Section: Environmental Management and Sustainable Developmentmentioning

confidence: 99%

Examination of the Thermal Neutrality for Residents of a Warm-Humid Urban Environment

Adunola

2016

EMSD

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The paper examined the applicability of thermal neutrality equations to the thermal responses of residents in a field study within a tropical warm-humid urban environment in Ibadan, Nigeria. A total of 528 houses were selected for the survey using systematic random sampling within twelve neighborhoods selected by stratified random sampling in the metropolis. For each selected building, an adult resident filled a questionnaire indicating the adaptive thermal response at different periods of the day using the ASHRAE thermal comfort scale. Measurement of indoor and outdoor air temperature and other thermal comfort parameters was done in representative buildings in the neighborhoods. It was found that the residents" thermal neutrality was higher than values predicted by applied thermal neutrality equations inferring opportunities for sustainable comfort. It was concluded that there is essentially a climatic and contextual basis for the application of thermal neutrality equations.

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“…However, Fanger's model has failed in the results for naturally-ventilated buildings and increasing dissatisfaction with this approach has driven interest in a variable indoor temperature standards model [19]. Nicol and Roaf [20] suggested the Equation (1) model for occupants of naturally-ventilated buildings. Other adaptive models are suggested by Humphrey's models [21] for neutral temperature, as given by Equations (2) and (3).…”

Section: Comfort Zonementioning

confidence: 99%

Risk Identification in the Early Design Stage Using Thermal Simulations—A Case Study

Sajjadian¹

2018

Sustainability

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Abstract:The likely increasing temperature predicted by UK Climate Impacts Program (UKCIP) underlines the risk of overheating and potential increase in cooling loads in most of UK dwellings. This could also increase the possibility of failure in building performance evaluation methods and add even more uncertainty to the decision-making process in a low-carbon building design process. This paper uses a 55-unit residential unit project in Cardiff, UK as a case study to evaluate the potential of thermal simulations to identify risk in the early design stage. Overheating, increase in energy loads, carbon emissions, and thermal bridges are considered as potential risks in this study. DesignBuilder (DesignBuilder Software Ltd., Stroud, UK) was the dynamic thermal simulation software used in this research. Simulations compare results in the present, 2050, and 2080 time slices and quantifies the overall cooling and heating loads required to keep the operative temperature within the comfort zone. Overall carbon emissions are also calculated and a considerable reduction in the future is predicted. Further analysis was taken by THERM (Lawrence Berkeley National Laboratory, Berkeley, CA, USA) and Psi THERM (Passivate, London, UK) to evaluate the thermal bridge risk in most common junctions of the case study and the results reveal the potential of thermal assessment methods to improve design details before the start of construction stage.

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Pioneering new indoor temperature standards: the Pakistan project

Cited by 144 publications

References 3 publications

Improving comfort levels in a traditional high altitude Nepali house

Improving comfort levels in a traditional high altitude Nepali house

Examination of the Thermal Neutrality for Residents of a Warm-Humid Urban Environment

Risk Identification in the Early Design Stage Using Thermal Simulations—A Case Study

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