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Dissertation
Travail de fin d'études / Projet de fin d'études : Characterization of Envelopes Thermal Transmittance based on a mixed approach
Authors: --- --- --- ---
Year: 2022 Publisher: Liège Université de Liège (ULiège)

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Abstract

In Wallonia, there are many buildings and houses built in the 1960s, after World War II, that have envelopes and facades with many heat losses. Due to the poverty of the envelopes of these buildings, they are very energetically inefficient buildings (Attia et al., 2021) that need to be overheated in cold seasons to be comfortable inside.
For this matter, it has been developed a methodology through infrared thermography in order to detect the poorest elements of the envelopes of these buildings for a possible renovation. This study takes as a reference a building of the University of Liege residence built in 1968. The first stage of the work consists of making a 3D model of the building. This model has been made from images obtained by drone and printing it with a 3D printer to evaluate the accuracy of the method. The second part of the work consists of estimating the thermal transmittance (U-value) of the facade of the residence through infrared thermography. This method will be compared with real monitoring of the U-value using measurement sensors and the calculation of the U-value following the ISO 9869 standard. The study aims to compare the three methods in terms of accuracy, speed, usability, and cost.
The main results of this study have been to obtain the U-value by the three developed methods and the detailed comparison of these. A 3D modelling method has also been developed through images captured with the drone where good accuracy is achieved.
This study provides an interesting basis for future research using drones equipped with thermal cameras to develop 3D thermal models of buildings.


Book
Energy and Seismic Renovation Strategies for Sustainable Cities
Author:
ISBN: 3038979457 3038979449 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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The principle of sustainability should be strictly connected with safety, since both aim to conserve resources: in the case of sustainability, the resources are typically thought of as environmental, while in the case of safety, the resources are basically human. In spite of this common ground, discussions on sustainability usually give insufficient attention to safety. In the last years the EU has made large investments to increase the energy efficiency of the existing building stock, paving the way for a low-carbon future; however, less effort has been made to enhance its seismic resilience. Therefore, the safety and, consequently, the sustainability of towns situated in earthquake-prone countries remain inadequate. In such countries, energy renovation actions should be combined with seismic retrofitting. However, a number of barriers considerably limit the real possibility of extensively undertaking combined retrofit actions, especially for multi-owner housing and high-rise buildings. These barriers are of different kinds: technical (e.g., unfeasibility and/or ineffectiveness of conventional retrofit solutions), financial (e.g., high renovation costs, insufficient incentives/subsidies), organizational (e.g., occupants’ disruption and relocation, renovation consensus by condominium ownerships), and cultural/social (insufficient information and skills, lack of adequate policy measures for promoting renovation actions). This book aims to overcome these barriers and to bridge the gap between sustainability and safety, so to conserve both human and environmental resources.


Book
Thermal Behaviour, Energy Efficiency in Buildings and Sustainable Construction
Author:
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This Special Issue includes 20 contributions from across the world with very interesting and current research topics, such as insulation solutions and CO2 emissions; thermal transmittance of LSF walls; statistics for China’s building energy consumption; natural ventilation; thermal behavior of an earthbag building; thermal performance and comfort in a vernacular building; overheating risk under future extreme weather conditions; analytical methods to estimate the thermal transmittance of LSF walls; model simplification on energy and comfort simulation analysis; Trombe wall thermal behavior and energy efficiency of an LSF compartment; new metering hot box for in situ hygrothermal measurement; mechanical and thermal performance of compressed earth blocks; life-cycle assessment of a new house; energy analyses of Serbian buildings with horizontal overhangs; thermal properties of mortar blocks by using recycled glass; prediction of cooling energy consumption building using machine learning techniques; occupants’ behavior, climate change, heating, and cooling energy needs of buildings; a new method for establishing a hygrothermally controlled test room; nonintrusive measurements to incorporate the air renovations in dynamic models; and retrofit of existing buildings with aerogel panels.

Keywords

Research & information: general --- Technology: general issues --- energy demand analysis --- insulation materials --- climate zones --- envelope --- CO2 emissions --- LSF construction --- facade wall --- partition wall --- thermal transmittance --- thermal bridges --- parametric study --- numerical simulations --- building energy statistics --- building energy consumption --- energy balance sheet --- building energy efficiency --- China --- building automation systems --- heating control --- energy savings --- earth building --- thermal comfort --- passive design --- monitoring and simulation --- glazed balcony --- indoor comfort --- passive strategies --- thermal performance --- vernacular architecture --- overheating risk --- evaluation --- cold climates --- lightweight steel frame --- LSF walls --- U-value --- analytical methods --- calculation procedures --- accuracy --- Model simplifications --- Thermal and visual comfort --- Energy performance --- IDA ICE --- Residential building --- passive solar --- Trombe wall --- light steel frame --- thermal behavior --- energy efficiency --- Mediterranean climate --- office use --- residential use --- heating set-points --- metering hot box --- in situ --- hygrothermal measurement --- dynamic conditions --- historic masonries --- HeLLo --- compressed earth blocks (CEBs) --- compressive strength --- durability --- guarded hot box --- LCA --- environmental impact --- house --- building envelope --- building --- overhangs --- energy consumption --- optimization --- GenOpt --- EnergyPlus --- crushed glass --- periodic thermal transmittance --- energy demand --- adaptive comfort --- social housing --- heating and cooling system --- optimization and management --- energy use prediction --- neural network --- support vector machine --- occupant behavior --- climate changes --- energy needs --- ventilation --- residential buildings --- DesignBuilder --- water vapor resistivity --- hygrothermal modeling --- condensation --- mold --- hygrothermal properties --- moisture transport --- inter-laboratory testing --- building energy --- performance assessment --- air renovation --- non-intrusive measurements --- on-board monitoring --- aerogel --- dynamic simulation --- retrofitting --- economic analysis --- energy demand analysis --- insulation materials --- climate zones --- envelope --- CO2 emissions --- LSF construction --- facade wall --- partition wall --- thermal transmittance --- thermal bridges --- parametric study --- numerical simulations --- building energy statistics --- building energy consumption --- energy balance sheet --- building energy efficiency --- China --- building automation systems --- heating control --- energy savings --- earth building --- thermal comfort --- passive design --- monitoring and simulation --- glazed balcony --- indoor comfort --- passive strategies --- thermal performance --- vernacular architecture --- overheating risk --- evaluation --- cold climates --- lightweight steel frame --- LSF walls --- U-value --- analytical methods --- calculation procedures --- accuracy --- Model simplifications --- Thermal and visual comfort --- Energy performance --- IDA ICE --- Residential building --- passive solar --- Trombe wall --- light steel frame --- thermal behavior --- energy efficiency --- Mediterranean climate --- office use --- residential use --- heating set-points --- metering hot box --- in situ --- hygrothermal measurement --- dynamic conditions --- historic masonries --- HeLLo --- compressed earth blocks (CEBs) --- compressive strength --- durability --- guarded hot box --- LCA --- environmental impact --- house --- building envelope --- building --- overhangs --- energy consumption --- optimization --- GenOpt --- EnergyPlus --- crushed glass --- periodic thermal transmittance --- energy demand --- adaptive comfort --- social housing --- heating and cooling system --- optimization and management --- energy use prediction --- neural network --- support vector machine --- occupant behavior --- climate changes --- energy needs --- ventilation --- residential buildings --- DesignBuilder --- water vapor resistivity --- hygrothermal modeling --- condensation --- mold --- hygrothermal properties --- moisture transport --- inter-laboratory testing --- building energy --- performance assessment --- air renovation --- non-intrusive measurements --- on-board monitoring --- aerogel --- dynamic simulation --- retrofitting --- economic analysis


Book
Thermal Behaviour, Energy Efficiency in Buildings and Sustainable Construction
Author:
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This Special Issue includes 20 contributions from across the world with very interesting and current research topics, such as insulation solutions and CO2 emissions; thermal transmittance of LSF walls; statistics for China’s building energy consumption; natural ventilation; thermal behavior of an earthbag building; thermal performance and comfort in a vernacular building; overheating risk under future extreme weather conditions; analytical methods to estimate the thermal transmittance of LSF walls; model simplification on energy and comfort simulation analysis; Trombe wall thermal behavior and energy efficiency of an LSF compartment; new metering hot box for in situ hygrothermal measurement; mechanical and thermal performance of compressed earth blocks; life-cycle assessment of a new house; energy analyses of Serbian buildings with horizontal overhangs; thermal properties of mortar blocks by using recycled glass; prediction of cooling energy consumption building using machine learning techniques; occupants’ behavior, climate change, heating, and cooling energy needs of buildings; a new method for establishing a hygrothermally controlled test room; nonintrusive measurements to incorporate the air renovations in dynamic models; and retrofit of existing buildings with aerogel panels.

Keywords

Research & information: general --- Technology: general issues --- energy demand analysis --- insulation materials --- climate zones --- envelope --- CO2 emissions --- LSF construction --- facade wall --- partition wall --- thermal transmittance --- thermal bridges --- parametric study --- numerical simulations --- building energy statistics --- building energy consumption --- energy balance sheet --- building energy efficiency --- China --- building automation systems --- heating control --- energy savings --- earth building --- thermal comfort --- passive design --- monitoring and simulation --- glazed balcony --- indoor comfort --- passive strategies --- thermal performance --- vernacular architecture --- overheating risk --- evaluation --- cold climates --- lightweight steel frame --- LSF walls --- U-value --- analytical methods --- calculation procedures --- accuracy --- Model simplifications --- Thermal and visual comfort --- Energy performance --- IDA ICE --- Residential building --- passive solar --- Trombe wall --- light steel frame --- thermal behavior --- energy efficiency --- Mediterranean climate --- office use --- residential use --- heating set-points --- metering hot box --- in situ --- hygrothermal measurement --- dynamic conditions --- historic masonries --- HeLLo --- compressed earth blocks (CEBs) --- compressive strength --- durability --- guarded hot box --- LCA --- environmental impact --- house --- building envelope --- building --- overhangs --- energy consumption --- optimization --- GenOpt --- EnergyPlus --- crushed glass --- periodic thermal transmittance --- energy demand --- adaptive comfort --- social housing --- heating and cooling system --- optimization and management --- energy use prediction --- neural network --- support vector machine --- occupant behavior --- climate changes --- energy needs --- ventilation --- residential buildings --- DesignBuilder --- water vapor resistivity --- hygrothermal modeling --- condensation --- mold --- hygrothermal properties --- moisture transport --- inter-laboratory testing --- building energy --- performance assessment --- air renovation --- non-intrusive measurements --- on-board monitoring --- aerogel --- dynamic simulation --- retrofitting --- economic analysis


Book
Non-destructive Testing in Civil Engineering
Authors: ---
Year: 2022 Publisher: Basel MDPI Books

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Abstract

This Special Issue, entitled “Non-Destructive Testing in Civil Engineering”, aims to present to interested researchers and engineers the latest achievements in the field of new research methods, as well as the original results of scientific research carried out with their use—not only in laboratory conditions but also in selected case studies. The articles published in this Special Issue are theoretical–experimental and experimental, and also show the practical nature of the research. They are grouped by topic, and the main content of each article is briefly discussed for your convenience. These articles extend the knowledge in the field of non-destructive testing in civil engineering with regard to new and improved non-destructive testing (NDT) methods, their complementary application, and also the analysis of their results—including the use of sophisticated mathematical algorithms and artificial intelligence, as well as the diagnostics of materials, components, structures, entire buildings, and interesting case studies.

Keywords

Technology: general issues --- History of engineering & technology --- conveyor belt --- climatic factors --- thermal shocks --- mechanical properties --- applied geophysics --- urban geophysics --- Eleftheria Square --- ERT --- probability-based ERT inversion (PERTI) method --- GPR --- EMI --- impact-echo --- tooth gear impactor --- contact duration --- delamination --- rapid scanning --- non-destructive testing --- concrete slab --- building defects --- building diagnosis --- building envelope --- building inspection system --- urgency of repair --- historic buildings --- brick walls --- nondestructive testing --- artificial neural networks --- Nearly Zero Energy Buildings (NZEB) --- passive house (PH) --- heat flux meter (HFM) --- quantitative infrared thermography (QIRT) --- building thermal performance --- U-value --- Mediterranean climate --- electrical resistivity --- electrical impedance --- concrete --- mortar --- measurement accuracy --- ultrasonic elastography --- underground detection --- soil inspection --- underwater acoustics --- non-destructive test --- monitoring --- housing --- buildings --- façade --- thermal transmittance --- HFM method --- infrared thermography --- solar loading thermography --- lock-in thermography --- passive thermography --- thermal thickness --- thermal effusivity --- infrastructure --- NDT --- onsite X-ray bridge inspection --- 950 keV/3.95 MeV X-ray sources --- PC bridge --- unfilled grout --- quantitative evaluation of stage of unfilled grout --- step-heating thermography --- active thermography --- linear effusivity fit --- ground-penetrating radar --- signal features --- material moisture --- classification --- machine learning --- moisture measurements --- building floors --- civil engineering --- crack measurement --- image processing --- high resolution --- working distance --- crack width --- visual inspection --- structure state assessment --- ground sample distance (GSD) --- sonic resonant method --- impulse excitation technique --- resonant frequency --- steel fiber reinforced concrete --- fiber orientation --- micro-computed tomography --- ultrasound --- spectral induced polarization --- small force --- load --- instrumental signal --- two-point bending test --- strain gauge --- calibration equation --- n/a --- façade


Book
Thermal Behaviour, Energy Efficiency in Buildings and Sustainable Construction
Author:
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

Loading...
Export citation

Choose an application

Bookmark

Abstract

This Special Issue includes 20 contributions from across the world with very interesting and current research topics, such as insulation solutions and CO2 emissions; thermal transmittance of LSF walls; statistics for China’s building energy consumption; natural ventilation; thermal behavior of an earthbag building; thermal performance and comfort in a vernacular building; overheating risk under future extreme weather conditions; analytical methods to estimate the thermal transmittance of LSF walls; model simplification on energy and comfort simulation analysis; Trombe wall thermal behavior and energy efficiency of an LSF compartment; new metering hot box for in situ hygrothermal measurement; mechanical and thermal performance of compressed earth blocks; life-cycle assessment of a new house; energy analyses of Serbian buildings with horizontal overhangs; thermal properties of mortar blocks by using recycled glass; prediction of cooling energy consumption building using machine learning techniques; occupants’ behavior, climate change, heating, and cooling energy needs of buildings; a new method for establishing a hygrothermally controlled test room; nonintrusive measurements to incorporate the air renovations in dynamic models; and retrofit of existing buildings with aerogel panels.

Keywords

energy demand analysis --- insulation materials --- climate zones --- envelope --- CO2 emissions --- LSF construction --- facade wall --- partition wall --- thermal transmittance --- thermal bridges --- parametric study --- numerical simulations --- building energy statistics --- building energy consumption --- energy balance sheet --- building energy efficiency --- China --- building automation systems --- heating control --- energy savings --- earth building --- thermal comfort --- passive design --- monitoring and simulation --- glazed balcony --- indoor comfort --- passive strategies --- thermal performance --- vernacular architecture --- overheating risk --- evaluation --- cold climates --- lightweight steel frame --- LSF walls --- U-value --- analytical methods --- calculation procedures --- accuracy --- Model simplifications --- Thermal and visual comfort --- Energy performance --- IDA ICE --- Residential building --- passive solar --- Trombe wall --- light steel frame --- thermal behavior --- energy efficiency --- Mediterranean climate --- office use --- residential use --- heating set-points --- metering hot box --- in situ --- hygrothermal measurement --- dynamic conditions --- historic masonries --- HeLLo --- compressed earth blocks (CEBs) --- compressive strength --- durability --- guarded hot box --- LCA --- environmental impact --- house --- building envelope --- building --- overhangs --- energy consumption --- optimization --- GenOpt --- EnergyPlus --- crushed glass --- periodic thermal transmittance --- energy demand --- adaptive comfort --- social housing --- heating and cooling system --- optimization and management --- energy use prediction --- neural network --- support vector machine --- occupant behavior --- climate changes --- energy needs --- ventilation --- residential buildings --- DesignBuilder --- water vapor resistivity --- hygrothermal modeling --- condensation --- mold --- hygrothermal properties --- moisture transport --- inter-laboratory testing --- building energy --- performance assessment --- air renovation --- non-intrusive measurements --- on-board monitoring --- aerogel --- dynamic simulation --- retrofitting --- economic analysis


Book
Non-destructive Testing in Civil Engineering
Authors: ---
Year: 2022 Publisher: Basel MDPI Books

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Abstract

This Special Issue, entitled “Non-Destructive Testing in Civil Engineering”, aims to present to interested researchers and engineers the latest achievements in the field of new research methods, as well as the original results of scientific research carried out with their use—not only in laboratory conditions but also in selected case studies. The articles published in this Special Issue are theoretical–experimental and experimental, and also show the practical nature of the research. They are grouped by topic, and the main content of each article is briefly discussed for your convenience. These articles extend the knowledge in the field of non-destructive testing in civil engineering with regard to new and improved non-destructive testing (NDT) methods, their complementary application, and also the analysis of their results—including the use of sophisticated mathematical algorithms and artificial intelligence, as well as the diagnostics of materials, components, structures, entire buildings, and interesting case studies.

Keywords

conveyor belt --- climatic factors --- thermal shocks --- mechanical properties --- applied geophysics --- urban geophysics --- Eleftheria Square --- ERT --- probability-based ERT inversion (PERTI) method --- GPR --- EMI --- impact-echo --- tooth gear impactor --- contact duration --- delamination --- rapid scanning --- non-destructive testing --- concrete slab --- building defects --- building diagnosis --- building envelope --- building inspection system --- urgency of repair --- historic buildings --- brick walls --- nondestructive testing --- artificial neural networks --- Nearly Zero Energy Buildings (NZEB) --- passive house (PH) --- heat flux meter (HFM) --- quantitative infrared thermography (QIRT) --- building thermal performance --- U-value --- Mediterranean climate --- electrical resistivity --- electrical impedance --- concrete --- mortar --- measurement accuracy --- ultrasonic elastography --- underground detection --- soil inspection --- underwater acoustics --- non-destructive test --- monitoring --- housing --- buildings --- façade --- thermal transmittance --- HFM method --- infrared thermography --- solar loading thermography --- lock-in thermography --- passive thermography --- thermal thickness --- thermal effusivity --- infrastructure --- NDT --- onsite X-ray bridge inspection --- 950 keV/3.95 MeV X-ray sources --- PC bridge --- unfilled grout --- quantitative evaluation of stage of unfilled grout --- step-heating thermography --- active thermography --- linear effusivity fit --- ground-penetrating radar --- signal features --- material moisture --- classification --- machine learning --- moisture measurements --- building floors --- civil engineering --- crack measurement --- image processing --- high resolution --- working distance --- crack width --- visual inspection --- structure state assessment --- ground sample distance (GSD) --- sonic resonant method --- impulse excitation technique --- resonant frequency --- steel fiber reinforced concrete --- fiber orientation --- micro-computed tomography --- ultrasound --- spectral induced polarization --- small force --- load --- instrumental signal --- two-point bending test --- strain gauge --- calibration equation --- n/a --- façade


Book
Non-destructive Testing in Civil Engineering
Authors: ---
Year: 2022 Publisher: Basel MDPI Books

Loading...
Export citation

Choose an application

Bookmark

Abstract

This Special Issue, entitled “Non-Destructive Testing in Civil Engineering”, aims to present to interested researchers and engineers the latest achievements in the field of new research methods, as well as the original results of scientific research carried out with their use—not only in laboratory conditions but also in selected case studies. The articles published in this Special Issue are theoretical–experimental and experimental, and also show the practical nature of the research. They are grouped by topic, and the main content of each article is briefly discussed for your convenience. These articles extend the knowledge in the field of non-destructive testing in civil engineering with regard to new and improved non-destructive testing (NDT) methods, their complementary application, and also the analysis of their results—including the use of sophisticated mathematical algorithms and artificial intelligence, as well as the diagnostics of materials, components, structures, entire buildings, and interesting case studies.

Keywords

Technology: general issues --- History of engineering & technology --- conveyor belt --- climatic factors --- thermal shocks --- mechanical properties --- applied geophysics --- urban geophysics --- Eleftheria Square --- ERT --- probability-based ERT inversion (PERTI) method --- GPR --- EMI --- impact-echo --- tooth gear impactor --- contact duration --- delamination --- rapid scanning --- non-destructive testing --- concrete slab --- building defects --- building diagnosis --- building envelope --- building inspection system --- urgency of repair --- historic buildings --- brick walls --- nondestructive testing --- artificial neural networks --- Nearly Zero Energy Buildings (NZEB) --- passive house (PH) --- heat flux meter (HFM) --- quantitative infrared thermography (QIRT) --- building thermal performance --- U-value --- Mediterranean climate --- electrical resistivity --- electrical impedance --- concrete --- mortar --- measurement accuracy --- ultrasonic elastography --- underground detection --- soil inspection --- underwater acoustics --- non-destructive test --- monitoring --- housing --- buildings --- façade --- thermal transmittance --- HFM method --- infrared thermography --- solar loading thermography --- lock-in thermography --- passive thermography --- thermal thickness --- thermal effusivity --- infrastructure --- NDT --- onsite X-ray bridge inspection --- 950 keV/3.95 MeV X-ray sources --- PC bridge --- unfilled grout --- quantitative evaluation of stage of unfilled grout --- step-heating thermography --- active thermography --- linear effusivity fit --- ground-penetrating radar --- signal features --- material moisture --- classification --- machine learning --- moisture measurements --- building floors --- civil engineering --- crack measurement --- image processing --- high resolution --- working distance --- crack width --- visual inspection --- structure state assessment --- ground sample distance (GSD) --- sonic resonant method --- impulse excitation technique --- resonant frequency --- steel fiber reinforced concrete --- fiber orientation --- micro-computed tomography --- ultrasound --- spectral induced polarization --- small force --- load --- instrumental signal --- two-point bending test --- strain gauge --- calibration equation --- conveyor belt --- climatic factors --- thermal shocks --- mechanical properties --- applied geophysics --- urban geophysics --- Eleftheria Square --- ERT --- probability-based ERT inversion (PERTI) method --- GPR --- EMI --- impact-echo --- tooth gear impactor --- contact duration --- delamination --- rapid scanning --- non-destructive testing --- concrete slab --- building defects --- building diagnosis --- building envelope --- building inspection system --- urgency of repair --- historic buildings --- brick walls --- nondestructive testing --- artificial neural networks --- Nearly Zero Energy Buildings (NZEB) --- passive house (PH) --- heat flux meter (HFM) --- quantitative infrared thermography (QIRT) --- building thermal performance --- U-value --- Mediterranean climate --- electrical resistivity --- electrical impedance --- concrete --- mortar --- measurement accuracy --- ultrasonic elastography --- underground detection --- soil inspection --- underwater acoustics --- non-destructive test --- monitoring --- housing --- buildings --- façade --- thermal transmittance --- HFM method --- infrared thermography --- solar loading thermography --- lock-in thermography --- passive thermography --- thermal thickness --- thermal effusivity --- infrastructure --- NDT --- onsite X-ray bridge inspection --- 950 keV/3.95 MeV X-ray sources --- PC bridge --- unfilled grout --- quantitative evaluation of stage of unfilled grout --- step-heating thermography --- active thermography --- linear effusivity fit --- ground-penetrating radar --- signal features --- material moisture --- classification --- machine learning --- moisture measurements --- building floors --- civil engineering --- crack measurement --- image processing --- high resolution --- working distance --- crack width --- visual inspection --- structure state assessment --- ground sample distance (GSD) --- sonic resonant method --- impulse excitation technique --- resonant frequency --- steel fiber reinforced concrete --- fiber orientation --- micro-computed tomography --- ultrasound --- spectral induced polarization --- small force --- load --- instrumental signal --- two-point bending test --- strain gauge --- calibration equation

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