HVAC
YACHT HVAC SERVICE Whether you are having difficulties with your air conditioning, ventilation or provision cooling system, or you simply have a question about some aspect of your system, Heinen & Hopman has the answer. With subsidiaries in La Ciotat, Antibes, Barcelona and La Spezia, Heinen & Hopman can be at your disposal anywhere on the Mediterranean coastline. Part of MY TECH TEAM Antibes, a co-operation between Heinen & Hopman, De Keizer Marine Engineering and Zenoro, they can offer you a complete package to refit your yacht. Specialising in HVAC Service & Sales, Electrical Support & Sales and Generator Set Service & Sales. For more details Tel: +33(0)4 42 04 86 85 or visit
heinenhopmanfrance.com
monitoring equipment can measure the exact performance of a chiller and verify data such as kW of cooling, COP, SEI, Compressor Isentropic Efficiency, sub cooling, superheat, stabilised control strategies and a whole lot more. And the best part is, the data doesn’t lie! The numbers are witnessed in real time which makes this an ideal verification tool.”
Trending
At Synergy Consulting Patrick Voorn is seeing the use of independent HVAC consultants become more common in projects involved during the design up till delivery. He says, “The benefits of using an independent consultant is that they take care of the client’s wishes and that they are not solely looking at the HVAC system but at the total integration. Consultants are also aware of the expectations in way of how clients use their yacht, specific areas on this yacht, what he/she is expecting from a technical point of view like comfort, noise and energy use. He adds, “The products that we see are the monitoring systems, smart controls in the accommodation, air filtration systems, waste heat recovery systems, but also crew training as a product. The proper functioning of a system starts with understanding how it works.”
When it comes down to it there is much more about buying an HVAC system than is at first realised. Voorn suggests, “Most yards rely on the knowledge of their suppliers to get the job done properly. Engineering companies design almost every system there
REGULATION CHANGE
Stuart Ginbey the Managing Director of Tradewinds Engineering Ltd warns that with the increased pressure of the FGas Regulations and the phasedown of Hydrofluorocarbon (HFC) Refrigerants, the industry is under more pressure than ever before to reduce its use of high Global Warming Potential (GWP) refrigerants with immediate effect. He said, “The Regulations state that as of the 1st January 2020, a service ban will come into force, where any system containing more than 40T of CO2equivalent of a refrigerant with a GWP higher than 2500 will be effected.”
Many marine refrigeration systems use refrigerant R404A (GWP3922), but it is also relevant to plants using refrigerants such as R-507, R-434A and R-422D. For equipment that is affected by the service ban plans based on one of these three options need to be taken.
1 Retrofit the existing plant with a lower GWP refrigerant (it must have a GWP below 2500). For example, R-404A systems can be retrofitted with R-407F, R-448A or R-449A. This usually requires very few modifications to the existing plant and there is good evidence that energy efficiency will improve after a well- executed refrigerant retrofit.
2 Service the existing plant using reclaimed refrigerant. However, due to the cuts in manufacturing high GWP refrigerants, there is no guarantee that reclaimed refrigerants will continue to be available. Experience has shown, that refrigerant prices become very expensive and it becomes harder to get, so we don’t advise this as a long term solution.
3 Replace the plant with a new plant that uses a lower GWP refrigerant. It is important to recognise that this is happening now and simply ignoring the regulations is not an option. Everyone must start to plan their low GWP refrigerant strategy.
ONBOARD | SPRING 2019 | 105
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