Scope
This standard specifies the technical requirements of Biphenyl/Diphenyl oxide-based heat transfer fluids in CSP plant in terms of properties and test methods, reference values, sampling and frequency, key points of maintenance for Biphenyl/Diphenyl oxide (BP/DPO for short) in operation, anti-deterioration measures of filling and cleaning for concentrating solar collection system, replacement, recycling and disuse, technical management and safety requirements. This standard applies to both unused and in-use Biphenyl/Diphenyl oxide-based heat transfer fluids.
Purpose
The synthetic heat transfer fluids (HTF) are commonly used in CSP plants, and there are two types, one is polydimethylsiloxane, and the other is the mixture of biphenyl and diphenyl oxide (BP/DPO). IEC 62862-1-6 is under the development at present by IEC/TC 117, which is about the technical requirements of siliconbased heat transfer fluids. However, there is no corresponding international standard for BP/DPO in terms of reference values, sampling and frequency, key points of maintenance in operation, anti-deterioration measures, recycling, disposal and disuse and so on. UNE 206015 in Spain can give us some useful information about the synthetic heat transfer fluids in CSP plants, however, it does not pay much attention on how to keep the performance when operation and how to maintenance to make the service life of BP/DPO more longer. And we can also know the properties, the test method and technical requirements of HTF from DIN 51522, DIN 51529, GB 23971 and GB 24747, but they are not specific to BP/DPO. On basis of exiting standards in these countries, it is necessary to research and develop an international standard about technical requirements of BP/DPO and focus much on the supervision and maintenance, which are of benefit for the operation of CSP plant.
Comment on proposal
Required form fields are indicated by an asterisk (*) character.