SERVICE AND MAINTENANCE
■ A fourth – salt brines – performs well but has proved to be corrosive to pipework and systems .
T echnical manager at Kilfrost, Michael Reynolds, said he and his team had responded to industry feedback that highlighted the need for a new cost-effective solution, and explained how they have been working behind the scenes to bring t heir expertise to bear on heat transfer. “ Plant managers simply don’t have choice, t hey don’t have options. And it’s been this way for decades. We went into the lab and worked tirelessly to come up with something that would for once provide a viable alternative to what’s c urrently out there, and save them money. “ We knew we had to make a fluid that was n on-toxic and more efficient than current fluids. So we formulated it with organic, approved inhibitors and viscosity modifiers. We developed it to reduce the incidence of pressure drops across the system. It was essential to reduce pumping costs and increase hydraulic efficiency. “ The results of testing the Advanced Low
Viscosity (ALV) Plus fluid were impressive. It has been shown to be 66% less viscous than MPG and offers a lucrative 35% in energy savings. It has an operational temperature down to -40°C and
o utperforms MEG, MPG, Bio-PDO and ethanol- based heat transfer fluids. It’s also been approved by the NSF as safe for incidental food and beverage contact.
“ We were pleased, but needed to see ALV Plus i n operation out in the field to truly understand t he potential benefits to industry.
“ We took it to Canadian energy management consultants IB Storey, who had been asked by a chocolate manufacturer in Ontario to review its plant’s energy efficiency.
“After trialling ALV Plus, results identified p otential electricity savings of over $14,000 per y ear through a saving of 39% of pump operating c osts. Due to a reduction in fluid viscosity of 15%, capital costs were also reduced, representing construction cost savings of over $17,500.” Mr Reynolds continued: “We have been
a bsolutely delighted with the early response from c ompanies globally using our heat transfer fluids, w ho for the first time ever have been told that they can have both efficiency and non-toxicity, can use it with their legacy systems, and can save money.”
T he ALV Plus fluid is part of a range of ALV fluids produced by Kilfrost to suit different industries and applications.
Data from external tests on the performance of the fluids is being submitted to OEM simulators to demonstrate efficiency and performance benefits, and evaluate use of smaller hardware. Once results are returned, Mr Reynolds said K ilfrost would expect to see that due to the efficiency of the ALV range, there may be an opportunity to review primary refrigeration system set ups, and early indications suggest a positive effect.
“Market prohibitions on CFCs and increasingly H FCs have meant industry has been encouraged to turn back to ammonia for a primary
refrigerant, despite its inherent dangers and an opportunity to innovate and seek something less toxic.
“I understand that ammonia is efficient, and environmentally sound, but as a chemist starting out on an expe riment, my first thought is whethe r the substance is toxic – if it is, I immediately ask myself if it has to be used at all and if so, is there a substitute?
“ Our results could show benefits for the
primary refrigerant set-up in terms of efficiency a nd equipment installations, but maybe they will also herald a new dawn for heat transfer and temperature control altogether.”
Sabroe
www.sabroe.com Sabroe UK, Chantry Industrial Estate, Kingsbury Road, Sutton Coldfield, West Midlands B76 9EF Tel: 01675 470 899 Email:
brian.gaughan@
jci.com 31
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72
