Development of a non-invasive thermometric system for fluids in pipes
In this paper a non-invasive thermometric system for the measurement of the temperature of fluids in pipes based on the dual heat flux method is presented. The proposed solution is a possible alternative to the employment of thermowells in industrial applications. The proposed sensing system, is based on the dual heat flux method, a technique used in biomedical field. The applicability of such a measurement system in the field of interest is studied taking into account its component performance and how they influence the overall system behavior. A prototype system exploiting RTD sensors with measurement accuracy lower than 1°C has been designed, obtaining performances comparable to the thermowell ones. To reach such an accuracy a dedicated front-end electronics has been developed.
A Distributed Condition Monitoring System for the Non-invasive Temperature Measurement of Heat Fluids Circulating in Turbomachinery Pipes Based on Self-Powered Sensing Nodes
In this paper a network of temperature measurement sensors based on the dual heat flux method for the non-invasive monitoring of the temperature of hot fluids circulating in pipes is presented. Each node has an energy-harvesting power supply based on Peltier cells exploiting the heat dissipated by the pipes. The measured data are transmitted over a LoRa radio communication channel. The proposed solution aims to answer to the need of easy-to-mount, low-power, distributed networks of sensors for Industry 4.0 and Internet of Things purposes. The network has been tested evaluating the sensor performances and the energy balance.
Mangone's concise marine almanac
Measurements of marine forms physical-political marine features naval forces merchant marines and ports fisheries marine and seabed minerals pollution of the marine environment.