-
Technical
Short Course and Workshops
The conference is offering a number of short courses that delegates can take part. The short courses will run in parallel to the paper sessions.
The course are:
SC1- Practical considerations in the use of HFOs and HFO blends
Monday 3rd September - 11.15am - 12.55pm - Lodge 3
The workshop is aimed at consultants, designers, contractors, end users, and indeed anyone who is likely to use these products now or in the future. It will focus on practical aspects and what needs to be considered when approaching a project which will make use of these new refrigerants.
The workshop will feature an overview of product development, how safety standards apply to their use, and some case studies highlighting what needs to be done in order to be compliant with regulations and standards.
The course will be run by the FETA A2L working group. FETA (Federation of Environmental Trade Associations), formed its A2L working group two years ago to gather and disseminate information on these new products. In particular there is the need to understand the consequences of their low flammability characteristics, and what is required to comply with the evolving standards and regulations which apply as a result of this property.
SC2- Safety, efficiency, reliability and containment of HFOs
Tuesday 4th September - 11.15am -12.55pm - Lodge 3
REAL Alternatives is a course designed to provide information on the safe use of alternatives such as ammonia, hydrocarbon, carbon dioxide and low GWP HFCs / HFOs. This European learning programme was developed as part of a project offering innovative blended learning - a mix of e-learning, face-to-face training materials, practical exercises, assessments and an e-library of learning resources and was brought together using industry knowledge and expertise from across Europe about alternative refrigerants.
Conference delegates will have the unique opportunity to study some of the REAL Alternatives modules in a classroom environment with a lead expert from the field of alternative refrigerants and leak reduction. The course will focus on HFO refrigerants and covers the safety, efficiency, reliability and containment of HFO refrigerants. Those taking part will be able to undertake the course assessments and will be issued with certification.
SC3- Tips and techniques for refrigerant property simulation - challenges presented in simulating HFOs and HFO blends
Tuesday 4th September 1.50pm - 3.30pm - Lodge 3
The overall topic of this tutorial session is a description of the models that underpin the state-of-the-art thermophysical property libraries, and how these properties can be retrieved in a computationally efficient manner. The emphasis will be placed on the use of the REFPROP property library developed at the National Institute of Standards and Technology (NIST).
The first topic of the tutorial session will be a theoretical description of how the models (equations of state, mixture models, transport property formulations, etc.) are constructed. The emphasis of this section will be to describe the theory in a way that is relevant to end-users, such that they can understand the implications of these model formulations on their own code that they write.
Secondly, it will describe the use of the NIST REFPROP library to calculate the parameters of interest, including thermodynamic properties, derivatives of thermophysical properties, mixture phase envelopes, etc. An emphasis will be placed on the different means that can be used to maximize computational efficiency.
Finally, it will present work that has been recently carried out to use the bicubic tabular interpolation methods of CoolProp to achieve computational speeds for fixed-composition mixtures from REFPROP that are on the order of the computational speed of mixtures that are treated as pseudo-pure fluids. This should be of particular interest to researchers that are carrying out dynamic simulation studies with zeotropic mixtures containing HFO.
