International Journal of Materials Chemistry and Physics
Articles Information
International Journal of Materials Chemistry and Physics, Vol.2, No.1, Feb. 2016, Pub. Date: Dec. 14, 2015
Safe Sampling, Handling and Storage of Biphenyl Diphenyl Oxide Heat Transfer Fluids
Pages: 9-14 Views: 1808 Downloads: 1913
[01] Christopher Ian Wright, Research and Development Department, Global Group of Companies, Cold Meece Estate, Cold Meece, Staffordshire, United Kingdom.
[02] Eole Picot, RAMS Department, Alte Technologies SLU, Lliça de Vall, Barcelona, Spain.
Background: The heat transfer fluid (HTF) most commonly used in concentrated solar power (CSP) plants is eutectic mixtures of biphenyl and diphenyl oxide (BDO) such as Globaltherm Omnitech, which can be used up to 400 degrees Celsius. Routine sampling and chemical analysis of solar HTFs plays a critical role in maximizing the profitability of CSP plants. Objectives: The current article outlines the sampling and chemical analysis of solar HTFs containing a eutectic BDO mixture and how to safety handle and store BDO HTFs. Methods: The Company’s database was searched to identify risk and method statements detailing the safe sampling of BDO HTFs and to identify the parameters to measure. Likewise, the safety datasheets for the company’s BDO HTFs were searched and used to outline how this type of HTF should be handled and stored. Results: Like any HTF, the sampling of a BDO HTF needs to be conducted in a standardised manner to ensure it is done safely. The chemical testing of a HTF should include assessments of both ‘light’ and ‘heavy-ends’ (i.e., short and long-chain hydrocarbons); oxidative state; and, the potential flammability risk posed by light-ends. Other assessments include kinematic viscosity, contamination and component wear particles. In terms of safety, it is recommended that engineers are proficient with the safety data sheet for a BDO HTF to ensure they are sampled, handled and stored safely. General safety advice included: not allowing clothing soaked with a HTF to come into contact with or remain in contact with the skin; avoiding all personal contact with the HTF, including inhalation; wearing protective clothing; being vigilant that the decomposition of BDO HTFs may be flammable and hazardous to human health; and, knowing that personal protective equipment should be worn when sampling and handling a BDO HTF. Conclusions: Routine sampling of HTFs should be done whilst the HTF is live and conducted by a trained engineer that knows how to safely take a live sample as well as how to safely manage a BDO HTF. This includes being proficient in first aid should the BDO HTF come into contact with the skin, be ingested or inhaled. Lastly, BDO HTF condition should be tested on a regular basis and it is also advised to have this done by a company that specialises in this sector such as Global Heat Transfer, which has over 25 years of experience in this area of thermodynamics.
Heat Transfer Fluid, Heat Transfer Fluid System, Sampling and Chemical Analysis, Concentrated Solar Power, Eutectic Mixtures of Biphenyl and Diphenyl Oxide
[01] Definition of heat transfer fluid. Dictionary of construction. Source: Accessed: 10th September 2015.
[02] Wagner O Walter. Heat transfer technique with organic media. In: Heat transfer media, second ed. Graefelfing, Germany: Maria-Eich-Straβe; 1997. p. 4–58 [Chapter 2].
[03] Biencinto M, González L, Zarza E, Díez LE, Muñoz-Antón J. Performance model and annual yield comparison of parabolic-trough solar thermal power plants with either nitrogen or synthetic oil as heat transfer fluid Energy Conversion and Management 87 (2014) 238–249.
[04] Pidaparthia AS, Prasad NR. India’s first solar thermal parabolic trough pilot power plant. SolarPACES 2013. Energy Procedia 2014; 49: 1840-1847.
[05] Globaltherm Omnitech. Source: Accessed: 10th September 2015.
[06] Daniel Küser. Solar Report. Concentrating Solar Power (CSP): Outlook on large potentials and the MENA region. Published 2009. Source: Accessed: 24th February 2015.
[07] Tian Y, Zhao CY. A review of solar collectors and thermal energy storage in solar thermal applications. Applied Energy 2013; 104: 538–553.
[08] Fernandez AG, Cortes M, Fuentealba E, Perez a FJ. Corrosion properties of a ternary nitrate/nitrite molten salt in concentrated solar technology. Renewable Energy 2015; 80: 177-183.
[09] Wright CI. Thermal heat transfer fluid problems following a system flush with caustic and water. Case Studies in Thermal Engineering 2014; 2: 91–94.
[10] Global heat transfer. Source: Accessed: 10th September 2015.
[11] Ennis T. Safety in design of thermal fluid heat transfer systems. Symposium series number 155. Hazards XXI 2009; 162-169.
[12] Wright CI. Effective management of heat transfer fluid flash point temperatures using a light-ends removal kit (LERK). Case Studies in Thermal Engineering 2014; 4: 9–14.
[13] Wright CI, Picot E. A case study to demonstrate the value of a system flush and clean prior to filling a plant with virgin heat transfer fluid. Heat Transfer Engineering 2015: DOI:10.1080/01457632.2015.1067061.
MA 02210, USA
AIS is an academia-oriented and non-commercial institute aiming at providing users with a way to quickly and easily get the academic and scientific information.
Copyright © 2014 - American Institute of Science except certain content provided by third parties.