Certification and integration aspects of a primary ice detection system

2001 ◽  
Author(s):  
Darren Jackson ◽  
David Owens ◽  
Dennis Cronin ◽  
John Severson
Keyword(s):  
Detection System ◽  
Ice Detection

scholarly journals Compact Wireless Ice Detection System with electrode used as antenna

2018 ◽  
Vol 1065 ◽  
pp. 102001 ◽  
Author(s):  
W. Stocksreiter ◽  
H. Zangl ◽  
D. Glaser ◽  
M. Kaur ◽  
M. Moser
Keyword(s):  
Detection System ◽  
Ice Detection

scholarly journals Risk Assessment and Value of Action Analysis for Icing Conditions of Wind Turbines Close to Highways

Energies ◽  
2019 ◽  
Vol 12 (14) ◽  
pp. 2653 ◽  
Author(s):  
Rastayesh ◽  
Long ◽  
Sørensen ◽  
Thöns
Keyword(s):  
Wind Turbine ◽  
Wind Turbines ◽  
Urban Areas ◽  
Detection System ◽  
Turbine Blades ◽  
Heating System ◽  
Economic Losses ◽  
Wind Turbine Blades ◽  
Heating Systems ◽  
Ice Detection

The paper presents research results from the Marie Skłodowska-Curie Innovative Training Network INFRASTAR in the field of reliability approaches for decision-making for wind turbines and bridges. This paper addresses the application of Bayesian decision analysis for installation of heating systems in wind turbine blades in cases where an ice detection system is already installed in order to allow wind turbines to be placed close to highways. Generally, application of ice detection and heating systems for wind turbines is very relevant in cases where the wind turbines are planned to be placed close to urban areas and highways, where risks need to be considered due to icing events, which may lead to consequences including human fatality, functional disruptions, and/or economic losses. The risk of people being killed in a car passing on highways near a wind turbine due to blades parts or ice pieces being thrown away in cases of over-icing is considered in this paper. The probability of being killed per kilometer and per year is considered for three cases: blade parts thrown away as a result of a partial or total failure of a blade, ice thrown away in two cases, i.e., of stopped wind turbines and of wind turbines in operation. Risks due to blade parts being thrown away cannot be avoided, since low strengths of material, maintenance or manufacturing errors, mechanical or electrical failures may result in failure of a blade or blade part. The blade (parts) thrown away from wind turbines in operation imply possible consequences/fatalities for people near the wind turbines, including in areas close to highways. Similar consequences are relevant for ice being thrown away from wind turbine blades during icing situations. In this paper, we examine the question as to whether it is valuable to put a heating system on the blades in addition to ice detection systems. This is especially interesting in countries with limited space for placing wind turbines; in addition, it is considered if higher power production can be obtained due to less downtime if a heating system is installed.

Design of Icing Prober Configuration for Horizontal Axis Wind Turbine

2012 ◽  
Vol 608-609 ◽  
pp. 658-661
Author(s):  
Xian Yi ◽  
Kun Chen ◽  
Kai Chun Wang ◽  
Hong Lin Ma
Keyword(s):  
Wind Turbine ◽  
Real Time ◽  
Reference Frame ◽  
Detection System ◽  
Horizontal Axis ◽  
Future Research ◽  
Ice Accretion ◽  
Horizontal Axis Wind Turbine ◽  
Ice Detection ◽  
Multiple Reference

A design approach of ice detection system for wind turbine is presented in this paper. Basic steps for design are proposed. Numerical arithmetic used for design configuration and shape of the icing prober is given. The arithmetic is composed of the Multiple Reference Frame (MRF) method to calculate flowfield of air, a Lagrangian method to compute droplet trajectories and a technique for fast computing ice accretion. Icing prober configuration for a 1.5 MW horizontal axis wind turbine is then obtained with the approach. The state of wind turbine icing can be reflected by the prober in real time. All these achievements build a good base for future research.

A Flush-Mounted Resonant Ice Detection Sensor with High Sensitivity

2012 ◽  
Vol 503 ◽  
pp. 81-86
Author(s):  
Qiang Shi ◽  
Jun Bo Wang ◽  
De Yong Chen ◽  
Yan Long Shang
Keyword(s):  
Resonant Frequency ◽  
Closed Loop ◽  
Detection System ◽  
Temperature Stability ◽  
High Sensitivity ◽  
Sensor Surface ◽  
Sensing Element ◽  
Ice Films ◽  
Ice Detection ◽  
Better Than

An ice detection system consisting of a resonant piezoelectric sensing-element and closed-loop circuit has been developed to automatically and distinctly sense ice films up to 1.3 mm thick. Accretion of ice and/or water on the sensor surface modifies the effective mass and/or stiffness of the vibrating transducer; these variations are sensed by measuring the changes in transducer resonant frequency. In case of ice films, resonant frequency of the transducer increases steadily from 60.9 kHz with no ice to 131.5 kHz when the ice film is 1.3mm thick. The time and temperature stability experiments revealed frequency variety no more than 1 kHz. The resolution of this sensor is better than 0.06mm.

MULTI-FREQUENCY ICE DETECTION SYSTEM

2008 ◽  
Author(s):  
EROS PASERO ◽  
MARCO RICCARDI ◽  
TASSILO MEINDL
Keyword(s):  
Detection System ◽  
Ice Detection
Sign in / Sign up

Export Citation Format

Share Document