Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
I asked this question over a decade ago to a couple of different suppliers in the UK. What intrigued me was the very high efficiency that suppliers (e.g., Mitsubishi, Daikin) quoted - figures that we just plugged into building code calculations. Based on these figures it seemed like a no-brainer to just rip out centrifugal chillers and replace them with acres of DX systems! My enquiries came to little. The only interesting thing that I got (from a Danish academic) was that the market was very Germany-centric which resulted in SEER & COP being established at what seemed like, for the UK at least, quite extreme temperature bins.
The impression I got is that, locally, there is some design experience within the sales teams but it's limited to sizing. The best I got back in terms of energy was something along the lines of "we've got some boffins over in Japan, we can try asking them."
I don't doubt that they have some very clever people. Are they clever enough to get centrifugal-like performance out of a scroll compressor? I don't know. Reading your message, it's interesting to see that maybe the US market is subject to the same "black box" issues!
