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Modeling Indoor Relative Humidity and Wood Moisture Content as a Proxy for Wooden Home Fire Risk

Torgrim Log
2019 Sensors  
In the present work, the moisture content of indoor wooden home wall panels was modeled based on ambient temperature and relative humidity recorded at meteorological stations as the climatic boundary conditions  ...  expected wood panel moisture content.  ...  Acknowledgments: The author would like to acknowledge improvements to the manuscript suggested by Bart Mercy, Faculty of Engineering and Architecture, Ghent University, Belgium, and Nieves Fernandez Anez  ... 
doi:10.3390/s19225050 pmid:31752413 pmcid:PMC6891677 fatcat:vhubtonfcreiffzbthejltnq3i

Cold Climate Structural Fire Danger Rating System?

Maria-Monika Metallinou, Torgrim Log
2018 Challenges  
Knowledge about the effect of dry cellulose-based materials on fire development, indoor and outdoor, is a motivation for monitoring possible changes in potential fire behavior and associated fire risk.  ...  Such a system may include the following steps: (1) Record weather forecasts and actual temperature and relative humidity inside and outside selected structures; (2) Develop a meteorology-data-based model  ...  We very much appreciate the valuable suggestions and comments from the anonymous reviewers for improving the manuscript.  ... 
doi:10.3390/challe9010012 fatcat:zvegxigzavfgzd2t3prsibyr4m

Consumer Grade Weather Stations for Wooden Structure Fire Risk Assessment

Torgrim Log
2018 Sensors  
The present work describes testing of low cost consumer grade weather stations for recording temperature and relative humidity as a proxy for dry wood structural fire risk assessment.  ...  During January 2014, Norway experienced unusually cold and dry weather conditions leading to very low indoor relative humidity (RH) in inhabited (heated) wooden homes.  ...  It is much appreciated that the home owners allowed for installation of weather stations during the winter 2015/2016. Valuable comments by the two anonymous reviewers are also appreciated.  ... 
doi:10.3390/s18103244 fatcat:rjcwuy5lu5aerde3qkg2ztyymu

Modeling Drying of Degenerated Calluna vulgaris for Wildfire and Prescribed Burning Risk Assessment

Torgrim Log
2020 Forests  
Conclusions: The established range of diffusion coefficients and the developed model may likely be extended for forecasting moisture content of degenerated Calluna as a proxy for fire danger and/or conditions  ...  Materials and methods: Test specimens (3–6 mm diameter) of dead Calluna stems and branches were rain wetted 48 hours and subsequently placed in a climate chamber at 20 °C and 50% relative humidity for  ...  Relative humidity (RH) as a function of equilibrium moisture content (EMC) at 22 °C. Data from Equation (A6) [44].  ... 
doi:10.3390/f11070759 fatcat:nx3z34l6cjfctltmavydhorwaq

Interactions Among Health Risk Factors and Decision-Making Process in the Design of Built Environments [chapter]

Mateja Dovjak, Andreja Kukec
2019 Creating Healthy and Sustainable Buildings  
The identification of interactions among parameters of health risk factors is a crucial step for the effective assessment and prevention of problems in unhealthy built environments.  ...  In Sects. 4.2-4.3, comprehensive descriptions of all detected interactions among health risks and their parameters that have harmful impacts on user health and wellbeing are defined.  ...  Household dust serves as a good proxy for assessing indoor air pollution (Gustafsson et al. 2018) .  ... 
doi:10.1007/978-3-030-19412-3_4 fatcat:w72xhmdtfjfx7pktto5jlm5j6a

Deposition and rainwater concentrations of trifluoroacetic acid in the United States from the use of HFO-1234yf

J. Kazil, S. McKeen, S.-W. Kim, R. Ahmadov, G. A. Grell, R. K. Talukdar, A. R. Ravishankara
2014 Journal of Geophysical Research - Atmospheres  
N ote -To jump directly to a particular article or section, simply hold ctrl and left click on the title of the article or section you wish to read.  ...  Suggestions for published research to be included in future Digests should be emailed to ccac_secretariat@, with the subject line 'For SL CP Research Digest' we particularly welcome published  ...  In this work, 13 RVs, including 6 different 3-wheel (3-W) RVs and 7 different 4-wheel (4-W) RVs, were examined using a portable emissions measurement system (PEMS) as the vehicles were driven on predesigned  ... 
doi:10.1002/2014jd022058 fatcat:v5agaogcyfhh5j6b2u2xsplkwa

The ventilation of buildings and other mitigating measures for COVID-19: a focus on winter 2020 [article]

RAMP Task 7 Members
2020 arXiv   pre-print
This report reviews knowledge of the tranmission of COVID-19 indoors, reviews mitigating measures, and considers the implications for winter 2020.  ...  relative air speed, andhumidity.  ...  relative humidities (see section on Effects of Temperature and Humidity).  ... 
arXiv:2009.12781v2 fatcat:5hpibao3gjgyhpndlokjbvfnku

The Road Not Taken: Building Physics, and Returning to First Principles in Sustainable Design

Robyn Pender, Daniel J. Lemieux
2020 Atmosphere  
We draw on research and case studies, as well as on the lessons from history, to show how the problem derives from a neglect of first-principles thinking and fundamental building physics.  ...  Equally, though, we show how combining good building physics with a re-evaluation of older approaches to construction and building use delivers some powerful and effective tools for tackling the climate  ...  Thanks also to Tobit Curteis for his input, and for the infrared image of heating. Conflicts of Interest: The authors declare no conflicts of interest.  ... 
doi:10.3390/atmos11060620 fatcat:hr2zqtqzw5aw3d63kf2lmv6dpy

General Poster Sessions

2014 International forestry review  
A total of 31 wood species from 15 botanical families are listed as potential candidates, while 24 wood species belonging to 12 families are currently exploited for timber, art, and sculpture purposes.  ...  The climatological parameters used were mean annual precipitation, mean annual temperature, maximum and minimum absolute temperature, mean relative humidity, and dry season duration.  ...  The carbon footprint of forestry in east Norway: a life cycle analysis. Lange, H., Timmermann, V., Dibdiakova, J., Gobakken, L.  ... 
doi:10.1505/146554814814281701 fatcat:tkm4o67rtvbjban3fbhbcayvqa

How resilient are buildings in the UK and Wales to the challenges associated with a changing climate? : Practical recommendations for risk-based adaptation [article]

Carolyn Hayles
, with the intention of making practical recommendations for risk-based adaptation, where deemed necessary.  ...  Consequently, we need to prepare for warmer, wetter, and more extreme weather patterns.  ...  Summertime moisture risk: • There is an optimal range of between 30-60% relative humidity for human health and comfort.  ... 
doi:10.25401/cardiffmet.20160683.v1 fatcat:57p7744npbg6bo73rxuqltf7ye

Quantification of environmental and economic impacts for main categories of building labeling schemes

Erkki Seinre, Jarek Kurnitski, Hendrik Voll
2014 Energy and Buildings  
FaculTy oF civil enGineerinG chair oF heaTinG and venTilaTion chair of heating and ventilation mainly focuses on the research in hvac systems, indoor climate of the buildings, energy efficient and sustainable  ...  buildings, passive cooling systems and heat supply systems (heat pumps).  ...  disorders and the effect of external physical stressor.  ... 
doi:10.1016/j.enbuild.2013.11.048 fatcat:ckgxbn7mtrh47gf4xsdaaio5jm

Quinn_columbia_0054D_13578.pdf [article]

We first analyzed a set of indoor temperature and humidity  ...  of the pollutants emitted by traditional wood-fed cooking fires.  ...  NAAS) in the models as a proxy for the effect of low vs. middle income, but this was not found to be significantly associated with indoor levels of T/DP/HI and was therefore not included in the final models  ... 
doi:10.7916/d8q81mtw fatcat:64dluapmhrfvvifddtwdm3vpt4

In Search of a Common European Approach to a Healthy Indoor Environment

Olaf C.G. Adan, Julie Ng-A-Tham, Wojtek Hanke, Torben Sigsgaard, Peter van den Hazel, Felicia Wu
2007 Environmental Health Perspectives  
Biological contamination may be encouraged by high relative humidity and by poorly maintained air conditioners.  ...  Moulds (the most common are Cladosporium, Aspergillus, Penicillium and Alternaria) proliferate in environments containing excessive moisture such as from leaks in roofs and walls, and can enter the home  ...  79, 80, 81, 83, 84, 85, 87, 94 Increasing trends 46, 48 Indicators 207, 214, 215, 218 Indoor air pollution 48, 50, 56, 58, 59, 63 Inequality 191, 193, 194, 196, 198 79, 85, 88, 89, 97, 98, 162, 163,  ... 
doi:10.1289/ehp.8991 pmid:17589611 pmcid:PMC1892108 fatcat:mi5gnhaebngcxkxkxwj4the7hi

Alternative Water Supply Systems

Fayyaz Ali Memon
2014 Water Intelligence Online  
Chapter 3 The verifi cation of a behavioural model for simulating the hydraulic performance of rainwater harvesting systems . . .  ...  ACKNOWLEDGEMENTS The authors would like to thank Rachel Smith (IRRI-Mexico) for her help in collecting valuable site data, as well as CONACYT (Mexican Council of Science ACKNOWLEDGEMENTS The authors  ...  McCreanor (Mercer University), Mischa Morgera (USF), Gary Osborne (The Florida Aquarium, Tampa) and Kyle Tejashri (University of Texas, Austin) for providing access to technical information on the case  ... 
doi:10.2166/9781780405513 fatcat:rzboaopngjcwbookdbwyvsdsbq

Moisture-related physical properties and self-heating of wood pellets

Jun Sian Lee
By including the equation for heat of wetting and differential heat of adsorption, the mathematical heat and moisture transfer model quantified the contribution of moisture adsorption to the self-heating  ...  For water vapor, the dried pellets were placed in a humidity chamber at 90% RH and temperature of 30 °C.  ...  As shown in Relative humidity where M is the moisture content (db), rh is the relative humidity in decimal, K and C, the model coefficients are found to be 0.01547 and 1.7105, respectively.  ... 
doi:10.14288/1.0395603 fatcat:wu2xpz3v5vcajdek5pinlscvna
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