Download or read book Present and Future Research on Guarded Hot Plate and Heat Flow Meter Apparatus written by F. De Ponte and published by . This book was released on 1985 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The paper discusses some problems related to the guarded hot plate (GHP) and heat flow meter (HFM) apparatus that justify today research efforts and future research programs. For the GHP these include the problem of imbalance detection and its correlation with the metering area definition, the problem of gap width, and the problem of apparatus speed. Also discussed are the specimen-related issues involved in measurements on rigid, highly conductive materials and mass transfer within the specimen during tests.
Download or read book Guarded Hot Plate and Heat Flow Meter Methodology written by C. J. Shirtliffe and published by ASTM International. This book was released on 1985 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Review of Current Commercially Available Guarded Hot Plate and Heat Flow Meter Apparatus and Instrumentation written by KG. Coumou and published by . This book was released on 1985 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Equipment for the measurement of thermal performance is commercially available from a number of sources. Specifications of the various apparatus are compared, and unique features of each model are described briefly in the text. Future requirements for commercially produced thermal testing equipment are discussed.
Download or read book Intra Laboratory Comparison of a Line Heat Source Guarded Hot Plate and Heat Flow Meter Apparatus written by RR. Zarr and published by . This book was released on 1991 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: The apparent thermal conductivity and thermal resistance of several building insulations were determined at the National Institute of Standards and Technology (NIST) using three apparatus. Reference values were determined with NIST's 1-metre Line-Heat-Source Guarded Hot Plate (GHP). The other two apparatus were heat-flow-meter (HFM) apparatus calibrated with a Standard Reference Material of fibrous-glass board (138 kg/m3). The apparatus -- NIST's 1-metre GHP; the 610 mm HFM; and the 305 mm HFM -- were operated at a mean temperature of 24°C and temperature difference of 22°C across the thickness of the specimen. Measurements of thermal conductivity were determined for individual specimens nominally 25 mm thick, covering a range of thermal conductivity from 0.02 to 0.16 W/(m•K). The thermal resistance of thick specimens (1 to 7 m2•K/W) of cellular plastic, fibrous and loose-fill insulation was also determined. Deviations from reference values of the GHP were calculated for the HFM apparatus. For the 610 mm HFM, the majority of deviations were within ±3% of the GHP. Substantial improvement was achieved by calibrating the 305 mm HFM as a function of thickness; however, deviations ranged from +1.5 to +9.2% from the GHP. The apparatus, test procedure, and analysis of the deviations are described in the paper.
Download or read book Evaluation of a 20 inch Guarded Hot plate Thermal Conductivity Apparatus Range 50 F to 250 F written by C. W. Kaplar and published by . This book was released on 1971 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An inter comparison of guarded hot plate and heat flow meter apparatus within the United Kingdom and Ireland written by David Salmon and published by . This book was released on 2001 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermoelectric Materials and Devices written by Iris Nandhakumar and published by Royal Society of Chemistry. This book was released on 2016-10-04 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermal energy harvesting is predicted to become a global, billion-pound market by 2020. This book provides a current perspective of recent developments and trends within thermoelectric materials and devices for power energy harvesting applications. The book highlights the potential of thermoelectrics in the context of a low carbon energy economy, and features in-depth coverage of a range of different fabrication methods for thermoelectric materials including electrodeposition. Topics covered include layered and pseudo-layered materials, thermoelectric oxides, nano- and micro-fabrication techniques, high-throughput thermoelectric measurement techniques and power mining. This book is ideal for researchers and industrialists in materials science.
Download or read book Summary of Error Analysis for the National Bureau of Standards 1016 mm Guarded Hot Plate and Considerations Regarding Systematic Error for the Heat Flow Meter Apparatus written by B. Rennex and published by . This book was released on 1985 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: A summary is given of the error analysis of the National Bureau of Standards (NBS) 1016-mm guarded hot plate (GHP) apparatus, with emphasis given to new ideas or techniques. The report discusses the following items: a brief introduction to the principle of measurement, a rationale for the method of summing of uncertainties, a list of individual uncertainties, a description of the innovative plate temperature control method, and a derivation of the error due to systematic uncertainty for the heat flow meter apparatus.
Download or read book A Guarded Hot plate Apparatus for the Measurement of Thermal Conductivity written by HAROLD J. HODGE and published by . This book was released on 1962 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development and Commissioning of a Large scale Rotatable Guarded Hot Plate Apparatus written by Joseph Paul Simonji and published by . This book was released on 2016 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: A large-scale guarded hot plate apparatus was designed and constructed for measurement of the thermal conductivity of thick insulation specimens and specimens containing layers and/or complex 3D heat flows (i.e. thermal bridges). The apparatus is capable of accepting specimens measuring 4' (1219mm) by 4' (1219mm) and up to 16” (406mm) thick with good accuracy in measurement. Computer models were developed to estimate heat flow errors important for determining the characteristics and limitations of the apparatus. Other sources of error in measurement were also evaluated. Once constructed, the apparatus was validated against a heat flow meter calibrated to better than 1% using a US National Institute of Standards and Technology (NIST) traceable calibration sample. Good agreement was shown between the heat flow meter and the guarded hot plate;
Download or read book Effective Thermal Insulation written by Amjad Almusaed and published by BoD – Books on Demand. This book was released on 2012-03-14 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has been written to present elementary practical and efficient applications in saving energy concept, as well as propose a solitary action for this category of topics. The book aims to illustrate various methods in treatment the concept of thermal insulation such as processes and the attempt to build an efficient passive building model.
Download or read book Heat Transmission Measurements in Thermal Insulations written by R. P. Tye and published by ASTM International. This book was released on 1979-12 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermal Conductivity 24 Thermal Expansion 12 written by Peter S. Gaal and published by CRC Press. This book was released on 1999-01-11 with total page 874 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermal Modeling of Multiple Line Heat Source Guarded Hot Plate Apparatus written by W. M. Healy and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermal Conductivity 18 written by T. Ashworth and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Thermal Conductivity Conference was started in 1961 with the initiative of Mr. Charles F. Lucks, who passed away on 8 July 1982 and to the memory of whom this volume is dedicated. These Conferences on thermal conductivity grew out of the needs of researchers in the field. The Conferences were held annu ally from 1961 to 1973 and have been held biennially since 1975 when our Center for Information and Numerical Data Analysis and Synthesis (CINDAS) of Purdue University became the Permanent Sponsor of the Conferences. These Conferences provide a broadly based forum for researchers actively working on the thermal conduc tivity and closely related properties to convene on a regular basis to exchange their ideas and experiences and report their findings and results. The Conferences have been self-perpetuating and are an example of how a technical community with a common purpose can transcend the invisible, artificial barriers between disciplines and gather together in increasing numbers without the need of national pub licity and continuing funding support, when they see something worthwhile going on. It is believed that this series of Conferences not only will grow stronger, but will set an example for research ers in other fields on how to jointly attack their own problem areas.
Download or read book Buildings Energy Conservation written by and published by . This book was released on 1985 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deviations from One dimensional Heat Flow in Guarded Hot plate Measurements written by National Research Council Canada. Division of Building Research and published by Division of Building Research, National Research Council. This book was released on 1958 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
