Liquid-in-glass thermometry

Wise, Jacquelyn A.

doi:10.6028/nbs.mono.150

Cited by 17 publications

(9 citation statements)

References 1 publication

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“…Selected references on calibration have been provided in Chapter 6.2, including: ASTM (1992), Baker and , Benedict (1984), Bryant and O'Neal (1992), Cortina (1988), Doebelin (1990), EEI (1981), Haberl et al (1992), Harding (1982), Huang (1991), Hurley and Schooley (1984), Hurley (1985), Hyland and Hurley (1983), Kulwicki (1991), Leider (1990), Liptak (1995), Miller (1989), Morrissey (1990), Ramboz and McAuliff (1983), Robinson et al (1992), Ross and White (1990), Sparks (1992), Wiesman (1989), Wise (1976), Wise and Soulen (1986).…”

Section: Calibration Of Instrumentationmentioning

confidence: 99%

International Performance Measurement and Verification Protocol: Concepts and Options for Determining Energy and Water Savings, Volume I (Revised)

2002

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Quality (IEQ) Issues Volume III Applications Volume I defines basic terminology useful in the M&V field. It defines general procedures to achieve reliable and cost-effective determination of savings. Such definitions then can be customized for each project, with the help of other resources (see Chapter 1.4 and Chapter 6.2). Verification of savings is then done relative to the M&V Plan for the project. This volume is written for general application in measuring and verifying the performance of projects improving energy or water efficiency in buildings and industrial plants. 1. Although there is some debate over the differences between the two terms energy conservation measure (ECM) and energy efficiency measure (EEM) they have been used interchangeably in this document. 2. The terms in italics are defined in Chapter 6.1 The IPMVP has broad application for businessmen, energy managers, law makers and educators and could become the national standard document for M&V. It has been important in helping the growth of the energy efficiency industry in Ukraine. North America's energy service companies have adopted the IPMVP as the industry standard approach to measurement and verification (M&V). "You cannot manage what you do not measure"-Jack Welch, CEO of General Electric When firms invest in energy efficiency, their executives naturally want to know how much they have saved and how long their savings will last. The determination of energy savings requires both accurate measurement and replicable methodology, known as a measurement and verification protocol. The long-term success of energy and water management projects is often hampered by the inability of project partners to agree on an accurate, successful M&V Plan. This M&V Protocol discusses procedures that, when implemented, help buyers, sellers and financiers of energy and water projects to agree on an e) Increase public understanding of energy management as a public policy tool By improving the credibility of energy management projects, M&V increases public acceptance of the related activities. Such public acceptance encourages investors to consider investing in energy efficiency projects or the emission credits they may create. By enhancing savings, good M&V practice also brings IPMVP is complemented by the work of the American Society of Heating, Refrigeration and AirConditioning Engineers (ASHRAE) in the form of its draft Guideline 14P Measurement of Energy and Demand Savings. In contrast to the ASHRAE document, which focuses at a very technical level, the IPMVP establishes a general framework and terminology to assist buyers and sellers of M&V services. ASHRAE's Guideline 14 has completed its first public review and hence was available publicly for a period in the middle of 2000. The

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Section: Calibration Of Instrumentationmentioning

confidence: 99%

International Performance Measurement and Verification Protocol: Concepts and Options for Determining Energy and Water Savings, Volume I (Revised)

2002

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“…Thermometer corrections included an emergent-stem correction and a correction for variations in the external bulb pressure caused by changes in atmospheric pressure. The emergent-stem correction (Wise, 1976) for the thermometers was always less than 1 mK for both TP and IP calibrations. Corrections for changes in pressure were estimated using a pressure coefficient of 0.1 K atmos −1 (Wise, 1976).…”

Section: Calibrationmentioning

confidence: 99%

Mercury-in-Glass Thermometers for Precise Temperature Measurements Near 0°C

Osterkamp¹

1979

J. Glaciol.

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ABSTRACT. Experience with the calibration and field use of mercury-in-glass calorimeter thermometers provides an indi cation of the a cc uracy attainable and the necessary corrections to obtain that accuracy. Secular changes as large as 57 mK have been observed during the first three years of thermometer use. Light physical tapping is found to reduce the thermometer readings by 3-6 mK. Corrections for variations in the extern al and internal bulb pressure and care to avoid parallax are necessary to obtain the best accuracy in field m easure me nts . The bes t accuracy obtainable with these thermometers for temperature measurements near ooe is approximately ± 4 mK for la boratory measurements and ± 5 mK for field measurements.RESUM E. Thcrmometres a mercure en verre pour mesu;es pricises de temperatu res au vo isinage de aOC. U n e e xpe rience pour le calibrage et I' utilisation sur le terrain de thermometres a mercure en verre donne des indications sur la precision acce>sible et le l conditions necessa irel pour atteindre cette precision. Une variation seculaire de I'ordre de 57 mdeg a ete observee au cours d es trois premieres annees de I'utilisation d'un thermometre. On constate que de petits tapoteme nts reduisent l'indication du th ermom etre d e 3 it 6 mdeg. Des corrections en fon ction des variations de pression extern e et interne dans le reservoir du thermometre et des soins pour eviter les erreurs de parallaxe sont necessairel pour obtenir la meille ure precision dans les mesures de terrain. La meilleure prec ision accessible avec ces thermometres pour mes urer des temperatures voisines de ooe est approximalivcment de ± 4 mdeg en laboratoire et de ± 5 mdeg sur le terrain.

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“…In temperature monitoring for EMCS and for the purposes of this report, these terms are used interchangeably . 3.…”

Section: D)mentioning

confidence: 99%

Calibration of temperature measurement systems installed in buildings

Hurley¹,

Schooley²

1984

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Energy Management Control Systems (EMCS) cannot function properly or efficiently without accurate temperature measurements since temperature is one of the fundamental measurements of any EMCS. This report was written for the purpose of describing various methods of on-site calibration of temperature sensing devices used in EMCS and to review the characteristics of these devices that are directly related to calibration. The significance of recording the results of each calibration is emphasized and the possible effects of systematic errors in temperature monitoring systems is discussed. Illustrative examples of the calibration of temperature monitoring systems are given. Liquid-in-glass thermometers, pressure thermometers, resistance temperature detectors (RTD), thermistors, integrated circuit temperature sensors, thermocouples, and bimetallic thermometers are discussed in detail with respect to their characteristics related to calibration.

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Liquid-in-glass thermometry

Cited by 17 publications

References 1 publication

International Performance Measurement and Verification Protocol: Concepts and Options for Determining Energy and Water Savings, Volume I (Revised)

International Performance Measurement and Verification Protocol: Concepts and Options for Determining Energy and Water Savings, Volume I (Revised)

Mercury-in-Glass Thermometers for Precise Temperature Measurements Near 0°C

Calibration of temperature measurement systems installed in buildings

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