PRODUCTS
ABOUT
Heat Flux Sensors in UAE & Gulf Countries
Tempsens supplies specialized heat flux sensors for essential industrial applications in the UAE and Gulf countries.
Our advanced thermal flux measurement solutions offer an accurate and real-time monitoring of heat transfer rates in harsh environments.
With two decades of thermal instrumentation experience, Tempsens heat flux sensors provide excellent reliability for aerospace, petrochemical, and energy clients in the region.
The range includes Gardon gauge technology for high-intensity applications (5-5000 W/cm²) as well as Schmidt-Boelter
gauges
for low-range, precision measurement (1-5 W/cm²).
Each Heat Flux measurement system has a linear 10 mV output as well an accuracy to ±5 % and is manufactured using OFHC copper for robustness in harsh industrial environments.
Tempsens heat flux sensors are operational up to 200°C, and with water-cooling, provides repeatable performance during long exposures to extreme conditions.
About Heat Flux Sensors
Technical Specifications
Standard Available Ranges
Gardon Gage:
10, 15, 20, 30, 50, 70, 100, 200, 250 W/cm² & other custom ranges available on request upto 800 W/cm²- Schmidt-Boelter Gauge: 1, 2.5, 5 W/cm² & other custom ranges available on request
Application of Heat Flux Sensors in UAE and Other Gulf Countries
- Oil & Gas Sector: Monitoring combustion chambers, managing refinery processes and flame radiation monitoring.
- Aerospace & Defense Sector: testing of rocket engine, jet propulsion systems, and ground-based flight test development facilities.
- Power Generation Sector StudyingBoiler efficiency, furnace efficiency, and thermal performance.
- Petrochemical Processing Sector: Monitoring heat exchangers, thermal analysis of reactors, and monitoring systems for safety.
- R&D Sector:Wind tunnel testing, materials research studies, and thermal studies for characterization.
- Fire Safety Sector and Testing: Flammability testing, inspections of protective equipment, and use of fire research.
- Manufacturing Industries: Glass manufacturing monitoring, metal processing, and quality control monitoring.
- HVAC Systems: Building energy management systems, thermal performance of insulation materials, and environmental controls.
Features of Heat Flux Sensor
- Standard Wire Length: 2 meter or specified
- Wire Material: Tin-plated copper, Teflon insulation over each wire, Teflon jacket overall
- Heat Capacity of Uncooled Sensor: Energy that can be absorbed by heat flux transducer before exceeding the 200 °C maximum body temperature
Features of Heat Flux Sensor
Features of Heat Flux Sensor
Applications:
Heat flow study in wind tunnels, engines, and flame radiation.
Operating Range:
The Gardon heat flow sensor general heat flow range is at least 5 W/cm² and up to 5000 W/cm².
Key Advantage:
The sensitivity of the Gardon heat flow sensor has nothing to do with the sensor temperature, enabling use in a wide temperature range. Water cooling is recommended for long-term use to increase sensor life.
Types of Heat Flux Sensor Available in UAE & Other Gulf Countries
thermocouple (thermopile) technique.Gardon Gauge Heat Flux Sensors
High Range Models:10–800 W/cm² (custom ranges available)
Schmidt-Boelter Gauge Sensors
Low Range Models: 1–5 W/cm² (custom available)
Water Cooled Series
Windowed Configured Radiometers
Operating Principle:
This gauge generate
s an output signal directly proportional to the heat flux incident upon the sensing surface. The steady-state outp
ut signal is generated by the transducer using temperature drop across a material of known thermal and physical properties.
Operating Range:
The Schmidt-Boelter thermopile heat flow sensor general heat flow range is at least 1 W/cm² and up to 5 W/cm².
Heat Flux Calculation:
Measured heat flux (W/cm²) = output voltage of sensor (mV) × Sensitivity (W/cm²/mV)
Note: Each sensor includes a calibration certificate issu ed by the manufacture r with sensitivity specifications.
Product Features
Core Features
- Linear Output
- Output Proportional to Heat Transfer Rate
- Accurate, robust and reliable sensor
- Uncooled & Water-cooled configuration
- The OFHC copper body ensures long life and signal stability.
- Easy to install (via flange)
- Mounting options available
- Measure Total Heat Flux (Convection + Radiation)
- Measure Radiation only (with window configuration)
Water-Cooled Series Advantages
- Continuous cooling capability to maintain sensor temperature below 200°C
- Long-term measurement without exposure time limit
- Linear signal output unaffected by temperature
- High measurement accuracy better than 5%
Standard Configurations
The basic heat flux sensor can be specified with certain mounting configurations and with or without provision for water cooling.
- Smooth body with flange (Standard configuration)
- Threaded body with flange
- Smooth body without flange
- Threaded body without flange
All mounting flanges are 43-45 mm diameter with equally spaced three holes for mounting.
Industrial Applications
Gardon Gauge Applications (5-5000 W/cm²)
High Heat Flux Measurements:
- Rocket and jet engine power output
- Engine and engine heat loss measurement
- Combustion chamber heat flow measurement
- Measurement of radiant heat flow (laser, explosion, etc.) of high-temperature heat sources
- Wind tunnel heat flow research
- Flame radiation heat research
- Ground and flight aerospace testing
- Fire, combustion, and performance evaluations of protective equipment
- Heat flow of blast furnace and boiler, power output of boiler and combustion chamber
- Process control (glass manufacturing, flame, furnace, etc.)
Schmidt-Boelter Gauge Applications (1-5 W/cm²)
Lower Heat Flux Measurements:
- HVAC Systems
- Energy conservation and management in buildings
- Automotive thermal management
- Battery thermal analysis
- Thermal insulation and building envelope performance
- Quality control in manufacturing and materials testing
- Biomedical research and medical device development
- Fire testing
- Heat flux standards for flammability testing
- Standardization of medium-temperature heat sources
Common Applications (Both Sensor Types)
- Aviation and Space Science
- Process monitoring and control
- Research and development testing
- Thermal performance evaluation
Calibration Process
Calibration Setup
The experimental apparatus consists of a heat flux sensor, data acquisition unit, and PC. Temperature Calibrator determined by the incident heat flux and the sensor’s measured output or reaction.
Calibration Procedure
- Heat source (blackbody furnace) is heated to generate radiation from cavity graphite strip at very high temperature
- Test and master heat flux sensors placed at equal distances from the graphite strip
- Furnace voltage manually controlled until 10 millivolt output achieved in standard heat flux sensor
- Test sensor output values expressed in millivolts
- Linear regression analysis performed for heat flux and sensor output to provides responsivity/sensitivity in (W/cm²)/mV
- Calibration data plotted to check accuracy of test gauge
Calibration Results
A test heat flux sensor of 30 watt/cm² calibrated using this setup achieved responsivity of 0.315, with accuracy within 5%.
Window Options: for radiative heat measure only (radiometer)
- ZnSe: Used for wide transmission range
- Sapphire (Al₂O₃): Most commonly used for chemical resistance and hardness
Manufacturing & Support
We are manufacturers of heat flux sensors with customization capabilities according to your requirements.
Technical Support: For questions related to heat flux sensors, contact: [email protected], +91 8078605472
FAQ
Frequently Asked Questions
Find answers to frequently asked questions related to Heat Flux Sensors.
Tempsens heat flux sensors measure up to 800 W/cm² with Gardon gauge technology with custom ranges available to 5000 W/cm² for specialized high intensity applications.
Flux: the flow rate of energy passing through a given surface area.
heat flux: Thermal energy transfer rate per unit area over time, expressed in W/cm², W/m², or kW/m².
Heat flux is also called thermal flux, heat flow density, or the rate of heat transfer per unit area, within thermal engineering use.
Heat flux measurement is fundamental to process optimization, safety monitoring, energy efficiency assessment, and thermal system design for both industrial and research applications across the Gulf region.
Cooling options: Water cooling is recommended for measurements above 5 W/cm² lasting more than 5 minutes, or when sensor body temperature may exceed 200°C.
To measure heat flux, a custom sensor is placed onto the surface to measure differences in temperature and calculate output following this formula: Heat Flux (W/cm²) = Sensor Output (mV) X Sensitivity Factor (W/cm²/mV).
Our sensors provide ±3% to ±5% accuracy depending on the model, with repeatability of 2%.
All sensors provide 10mV linear output at full scale range with infinite resolution, requiring no external power supply.
Standard sensors measure total heat flux (radiation + convection). Radiometer versions with windows measure radiation only.
It depends on usage conditions. We recommend annual calibration for critical applications or after exposure to extreme conditions.
All sensors include manufacturer calibration certificates. ISO standard calibrations are available upon request.
