The Measurement of Heat Flow in the Ground and the Theory of Heat Flux Meters


Book Description

The behavior of heat flux meters has been examined by experimental, electrical analogue and numerical means. The results indicate the more general applicability of the flux meter equation first proposed by Philip (1961) for the special case of spheroidal meters, provided certain precautions are taken. The purely geometric parameter appearing in this equation has been related to meter shape and a functional connection has been suggested. It is proposed that pairs of thermal sensors be used to monitor thermal conductivity continuously and the use of nonuniform 'focusing' heat flux meters is recommended in cases where the physical cross section of a thermopile should remain small compared to the resultant thermal cross section. Finally a number of calibration techniques are reported, including the use of a novel radiation enclosure in which meters are temporarily tested as net radiometers, (Author).




Compendium of Thermophysical Property Measurement Methods


Book Description

Building on the extensive coverage of the first volume, Volume 2 focuses on the fundamentals of measurements and computational techniques that will aid researchers in the construction and use of measurement devices.










Thermal Properties Measurement of Materials


Book Description

This book presents the main methods used for thermal properties measurement. It aims to be accessible to all those, specialists in heat transfer or not, who need to measure the thermal properties of a material. The objective is to allow them to choose the measurement method the best adapted to the material to be characterized, and to pass on them all the theoretical and practical information allowing implementation with the maximum of precision.







Thermal Conductivity 20


Book Description

The International Thermal Conductivity Conference was started in 1961 with the initiative of Mr. Charles F. Lucks and grew out of the needs of researchers in the field. The Conferences were held annually from 1961 to 1973 and have been held biennially since 1975 when our Center for Informa tion 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 con ductivity 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. arti ficial barriers between disciplines and gather together in increasing num bers without the need of national publicity and continuing funding support. when they see something worthwhile going on. It is believed that this ser ies of Conferences not only will grow stronger. but will set an example for researchers in other fields on how to jointly attack their own problem areas.




The Art of Measuring in the Thermal Sciences


Book Description

The Art of Measuring in the Thermal Sciences provides an original state-of-the-art guide to scholars who are conducting thermal experiments in both academia and industry. Applications include energy generation, transport, manufacturing, mining, processes, HVAC&R, etc. This book presents original insights into advanced measurement techniques and systems, explores the fundamentals, and focuses on the analysis and design of thermal systems. Discusses the advanced measurement techniques now used in thermal systems Links measurement techniques to concepts in thermal science and engineering Draws upon the original work of current researchers and experts in thermal-fluid measurement Includes coverage of new technologies, such as micro-level heat transfer measurements Covers the main types of instrumentation and software used in thermal-fluid measurements This book offers engineers, researchers, and graduate students an overview of the best practices for conducting sound measurements in the thermal sciences.