Results 1 to 10 of about 13,248 (234)

PMV–PPD and acceptability in naturally ventilated schools

open access: yesBuilding and Environment, 2013
The assessment of moderate thermal environments provided with HVAC system is usually carried out by means of the PMV and the PPD indices. The reliability of the PMV to predict the thermal sensation in non-air conditioned environments has been criticized in the past.
Francesca Romana D'Ambrosio Alfano   +1 more
exaly   +6 more sources

A larger statistical basis and a wider application area of the PMV equation in the Fanger model: application area of the PMV equation [PDF]

open access: yesIntelligent Buildings International, 2021
For sedentary activities, the PMV equation, derived by Fanger, is mainly based on the research of Nevins et al. (720 test subjects). Nevins' experiments were later on repeated by Fanger, but with 128 college-age Danish subjects and 128 elderly Danish subjects, instead of American subjects. Rohles did the research from Nevins et al.
Paul Roelofsen   +2 more
openaire   +4 more sources

Is redo percutaneous mitral balloon valvuloplasty (PMV) indicated in patients with post-PMV mitral restenosis?

open access: yesJournal of the American College of Cardiology, 1999
The purpose of this study was to assess the immediate and long-term outcome of repeat percutaneous mitral balloon valvuloplasty (PMV) for post-PMV mitral restenosis.Symptomatic mitral restenosis develop in 7% to 21% of patients after PMV. Currently, most of these patients are referred for mitral valve replacement.
Pathan, Asad Z   +7 more
openaire   +3 more sources

PMV Dimension Reduction Utilizing Feature Selection Method: Comparison Study on Machine Learning Models

open access: yesEnergies, 2023
Since P.O. Fanger proposed PMV, it has been the most widely used index to estimate thermal comfort. However, in some cases, it is challenging to measure all six parameters within indoor spaces, which are essential for PMV estimation; a couple of ...
Deok-Oh Woo
exaly   +2 more sources

Research on the BPNN in the Prediction of PMV

open access: yesApplied Mechanics and Materials, 2010
In view of the problem that it is difficult to calculate the Fanger’s PMV equation due to its complicated iterative process, a backpropagation neural network (BPNN) model was built to predict PMV. Air temperature, relative humidity, mean radiant temperature, air velocity, metabolic rate and clothing index were used as the input of neural network and ...
Jian Yao, Jin Xu
openaire   +2 more sources

The role of measurement accuracy on the thermal environment assessment by means of PMV index

open access: yesBuilding and Environment, 2011
ISO 7730 Standard classifies thermal environments in three categories as a function of the PMV range value, gradually decreasing according to the need of a lower dissatisfied percentage.
Francesca Romana D'Ambrosio Alfano   +2 more
exaly   +2 more sources

A New General Formulation for the PMV Thermal Comfort Index

open access: yesBuildings, 2022
The PMV index forms the basis of international thermal comfort standards. PMV was developed based on empirical relationships between the metabolic rate of activity and the body mean skin temperature and evaporative heat loss under the comfort conditions.
Abdelaziz Laouadi
openaire   +4 more sources

A new approach for measuring predicted mean vote (PMV) and standard effective temperature (SET∗)

open access: yesBuilding and Environment, 2003
Comfort index-based control has become the tendency of the development of new HVAC control systems, while an effective sensor for thermal comfort index is indispensable to a successful comfort index-based HVAC control system.
Youming Chen, Yuguo Li
exaly   +2 more sources

Adaptive thermal comfort explained by PMV [PDF]

open access: yes, 2008
Predicted Mean Vote (PMV) is a well known example of a thermal comfort performance indicator. Alternative indicators have gained interest over the last decade. Developments are found in higher resolution indicators, applying, e.g. thermo-physiological models.
Linden, van der, W.   +2 more
core   +3 more sources

Thermal Comfort and Energy Efficiency on Air-Conditioned University Classrooms by means of CFD-Simulation [PDF]

open access: yesE3S Web of Conferences, 2023
This paper proposed a method to forecast thermal comfort conditions and energy efficiently in air-conditioned classrooms. Room comfort parameters such as temperature and wind speed are simulated using the computational fluid dynamics (CFD) tool.
Pham Hong-Tham T.   +3 more
doaj   +1 more source

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