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Title: Tracking heat flux sensors for concentrating solar applications

Abstract

Innovative tracking heat flux sensors located at or near the solar collector's focus for centering the concentrated image on a receiver assembly. With flux sensors mounted near a receiver's aperture, the flux gradient near the focus of a dish or trough collector can be used to precisely position the focused solar flux on the receiver. The heat flux sensors comprise two closely-coupled thermocouple junctions with opposing electrical polarity that are separated by a thermal resistor. This arrangement creates an electrical signal proportional to heat flux intensity, and largely independent of temperature. The sensors are thermally grounded to allow a temperature difference to develop across the thermal resistor, and are cooled by a heat sink to maintain an acceptable operating temperature.

Inventors:
;
Publication Date:
Research Org.:
SNL-A (Sandia National Laboratories, Albuquerque, NM (United States))
Sponsoring Org.:
USDOE
OSTI Identifier:
1084256
Patent Number(s):
8,459,865
Application Number:
12/955,954
Assignee:
Sandia Corporation (Albuquerque, NM) SNL-A
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY

Citation Formats

Andraka, Charles E, and Diver, Jr., Richard B. Tracking heat flux sensors for concentrating solar applications. United States: N. p., 2013. Web.
Andraka, Charles E, & Diver, Jr., Richard B. Tracking heat flux sensors for concentrating solar applications. United States.
Andraka, Charles E, and Diver, Jr., Richard B. Tue . "Tracking heat flux sensors for concentrating solar applications". United States. https://www.osti.gov/servlets/purl/1084256.
@article{osti_1084256,
title = {Tracking heat flux sensors for concentrating solar applications},
author = {Andraka, Charles E and Diver, Jr., Richard B},
abstractNote = {Innovative tracking heat flux sensors located at or near the solar collector's focus for centering the concentrated image on a receiver assembly. With flux sensors mounted near a receiver's aperture, the flux gradient near the focus of a dish or trough collector can be used to precisely position the focused solar flux on the receiver. The heat flux sensors comprise two closely-coupled thermocouple junctions with opposing electrical polarity that are separated by a thermal resistor. This arrangement creates an electrical signal proportional to heat flux intensity, and largely independent of temperature. The sensors are thermally grounded to allow a temperature difference to develop across the thermal resistor, and are cooled by a heat sink to maintain an acceptable operating temperature.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 11 00:00:00 EDT 2013},
month = {Tue Jun 11 00:00:00 EDT 2013}
}

Patent:

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