BS01 BELT HEAT FLUX SENSOR The BS01 is a large-area flexible heat flux and temperature sensor for in-situ evaluation of the insulation value of pipes. With years of experience put into the design, it is the “standard” for pipe insulation testing for subsea oil pipes. 193.5 25 13 T3 100 T2 40 T1 T4 195 1.2 7. 8. 9. 10. 11. 12. 13. 14. 7 1. 2. 3. 4. 5. 6. 380 Figure 1 BS01 on pipe during in service testing. 3 Cabling, 4 Pipeline to be tested 5 BS01 mounted on pipeline (cover and springs for fixation are not shown) BS01 SPECIFICATIONS Heat flux measurement: Temperature measurement: Flexibility: Sensitivity (nominal): Expected accuracy (to 50°C): Temperature coefficient of the calibration coefficient: Temperature range: Pressure range: Cover dimensions: 3 separate heat flux sensors 4 type K thermocouples 30 mm minimum radius 50 µV/Wm-2 within 2.5 % INTRODUCTION The BS01 contains three heat flux sensing areas and four integrated temperature sensors. Originally designed for “simulated service conditions testing” for subsea oil pipelines, it can withstand high hydrostatic pressures up to 110 bar and is (contrary to other sensors) completely water-tight. The main development effort has gone into the prevention of penetration of moisture into the sensor at high pressures. With other sensors not specifically prepared for the high pressure, penetrated moisture will on the long term lead to instability of the sensor calibration. The sensor is provided with a mounting set for easy fixation, consisting of a cover and two springs. BS01 was originally designed by TNO TPD. Scientific publication about this sensor: D. Haldane (Heriot Watt University), F. van der Graaf, A.M. Lankhorst (TNO TPD): A direct Measurement System to obtain the Thermal Conductivity of Pipeline Insulation Coating Systems under Simulated Service Conditions. SUGGESTED USE General pipeline insulation testing Simulated service testing for subsea pipelines MORE INFORMATION / OPTIONS Alternative designs: Hukseflux is specialised in heat flux sensor design, and can offer sensors with modified dimensions and specifications. - 0.17 %/°C 0-100 °C 1-110 bar 140 x 360 mm V ers io n 1003 (page 1 of 1 ) Huks ef lux re serv es the r ig ht to alter s pec if ic atio ns w ithout pr ior no tic e H UKS EFL UX ™ THER MAL S ENSORS . WW W .HU KS EFLU X .CO M . INFO @HU KS EF LU X.CO M
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