Already a subscriber? 
MADCAD.com Free Trial
Sign up for a 3 day free trial to explore the MADCAD.com interface, PLUS access the
2009 International Building Code to see how it all works.
If you like to setup a quick demo, let us know at support@madcad.com
or +1 800.798.9296 and we will be happy to schedule a webinar for you.
Security check
Please login to your personal account to use this feature.
Please login to your authorized staff account to use this feature.
Are you sure you want to empty the cart?
IEC 62862-1-6 Ed. 1.0 en:2024 Solar thermal electric plants - Part 1-6: Silicone-based heat transfer fluids for use in line-focus concentrated solar power applications, 2024
- CONTENTS
- FOREWORD
- 1 Scope
- 2 Normative references
- 3 Terms and definitions [Go to Page]
- 3.1 General definitions
- 3.2 Relevant physical and chemical properties of heat transfer fluids
- 4 Classification of heat transfer fluids [Go to Page]
- 4.1 General
- 4.2 Mineral oil fluids
- 4.3 Synthetic fluids
- 4.4 Synthetic heat transfer fluids based on polydimethylsiloxanes (silicone, SiHTF)
- 4.5 Organic synthetic heat transfer fluids based on biphenyl / diphenyl oxide (BP/DPO)
- 4.6 Molten salt
- 5 Specified fluid properties and test methods [Go to Page]
- 5.1 General
- 5.2 List of technical requirements and evaluation of the quality of unused heat transfer fluids
- 5.3 List of additional fluid properties and test methods for silicone-based heat transfer fluids for general layout at operating conditions
- 5.4 List of fluid properties and test methods for heat transfer fluids in use
- 6 Inspection interval and sampling [Go to Page]
- 6.1 Inspection interval
- 6.2 HTF sampling
- 6.3 Gas-sampling
- 6.4 Labeling of the samples
- 7 Reporting
- 8 Marking, labelling and accompanied documents
- 9 Mixing
- 10 Recycling and disposal
- 11 Replacement and disuse
- Annex A (informative) Determination of the degree of thermal degradation of polydimethylsiloxane-based heat transfer fluids [Go to Page]
- A.1 Overview
- A.2 Meaning of symbols M, D, T
- A.3 Principle
- A.4 Technical equipment
- A.5 Safety remarks
- A.6 Reagents
- A.7 Procedure [Go to Page]
- A.7.1 Sample preparation
- A.7.2 Measurement procedure
- A.8 Evaluation [Go to Page]
- A.8.1 Analysis of results
- A.8.2 Calculation of the degree of degradation
- A.8.3 Assessment of the result
- A.9 Accuracy [Go to Page]
- A.9.1 General
- A.9.2 Addition of TM3 as external standard
- A.9.3 Repeatability
- A.9.4 Reproducibility
- A.10 Example with TM3 as reference substance
- Annex B (informative) Safety instructions and recommendations for handling polydimethylsiloxane-based heat transfer fluids at temperatures up to 450 °C [Go to Page]
- B.1 Safety information
- B.2 Safety instructions and recommendations [Go to Page]
- B.2.1 General recommendations
- B.2.2 Hazardous ingredients of polydimethylsiloxane-based heat transfer fluids under operating conditions
- B.2.3 Exposure controls and personal protection
- B.2.4 General protection and hygiene measures
- B.2.5 Personal protection equipment
- B.2.6 First aid measures after contact
- B.2.7 Firefighting measures
- Bibliography
- Figures [Go to Page]
- Figure 1 – Example of an aluminum bottle for sampling (new)
- Figure 2 – Example of a cylinder mounted with two valves (before use) e.g. for sampling at 425 °C and 20 bar
- Figure A.1 – Representation of the molecular structure of M-, D-, and T-units in polydimethylsiloxanes (PDMS)
- Figure A.2 – Representation of the molecular structure of polydimethylsiloxanes (PDMS, left) and the thermally induced equilibration reaction of linear polydimethylsiloxanes
- Figure A.3 – Thermally induced disproportionation of D-units in linear polydimethylsiloxanes, into T and M units
- Figure A.4 – Theoretical model for describing the long-term increase in viscosity of polydimethylsiloxane-based fluids by thermal aging
- Figure A.5 – Representation of a 29Si NMR spectrum indicating the different shift regions
- Figure A.6 – 29Si NMR spectrum (99,3 MHz, CD2Cl2) of TM3 with TMS as internal standard
- Tables [Go to Page]
- Table 1 – Properties and test methods for unused heat transfer fluids
- Table 2 – Additional fluid properties at specified operating conditions
- Table 3 –Test methods for heat transfer fluids in use (basic program)
- Table 4 – Test methods for heat transfer fluids in use (additional program)
- Table A.1 – Shift regions and assignment
- Table B.1 – Possible hazardous ingredients of polydimethylsiloxane-based heat transfer fluids in use
- Table B.2 – The product can contain the following substances of very high concern (Regulation (EC) No. 1907/2006 (REACH), Article 57) in amounts ≥ 0,1 % [Go to Page]
