{"id":155241,"date":"2013-04-18T16:17:34","date_gmt":"2013-04-18T16:17:34","guid":{"rendered":"http:\/\/climalife.com\/retrofitting-of-an-above-zero-cold-installation-at-the-fruit-co-operative-ille-fruit-in-ille-sur-tet\/"},"modified":"2023-07-24T11:02:14","modified_gmt":"2023-07-24T11:02:14","slug":"retrofitting-of-an-above-zero-cold-installation-at-the-fruit-co-operative-ille-fruit-in-ille-sur-tet","status":"publish","type":"post","link":"https:\/\/climalife.com\/ro\/retrofitting-of-an-above-zero-cold-installation-at-the-fruit-co-operative-ille-fruit-in-ille-sur-tet\/","title":{"rendered":"Retrofitting of an above-zero cold installation at the fruit co-operative, Ille Fruit, in Ille-sur-Tet"},"content":{"rendered":"

The co-operative, Clos Velours, specialises in the processing of fruit, mainly peaches and nectarines in the summer, and lettuce and parsley in the winter.\u00a0 It is the quality of the fruit, which is sold on the French, Belgian and German markets, that makes it stand out from Spanish products.\u00a0 It is riper and harvested at different times of the year.\u00a0 Organic fruit is also available.
\nIn the high season, up to 400 tonnes of fruit a day can arrive at the co-operative at a temperature of between 20 and 30\u00b0C.\u00a0 The fruit must be chilled to a temperature of between 7\u00a0and 10\u00b0C.\u00a0 It is then stored in\u00a0four cold rooms which can hold up to 200 tonnes of stock\u00a0kept at\u00a0a temperature of between\u00a04\u00a0and 6\u00b0C.
\nDescription of the installation:<\/strong><\/p>\n

– 5 Copeland D8RJ 6000 accessible hermetic compressors
\n– 2 Friga Bohn CA315 F8N air-cooled condensers
\n–\u00a013 Friga\u00a0Bohn KB 7650 evaporators<\/p>\n

This installation powers two system rooms with a capacity of 60 tonnes, one chilling room with a capacity of 80 tonnes at a temperature of between 7\u00a0and 10\u00b0C, and four holding rooms at a temperature\u00a0of between\u00a04\u00a0and 6\u00b0C.<\/p>\n

The client’s problem:
\n<\/strong>
\nIn June 2012, the SPIE office at St Esteve uncovered a substantial leak on the system operating with R22.\u00a0 The office’s attention turned to finding a solution that would extend the lifetime of this system, which was installed in 1991 by FICA (acquired by SPIE in 2009).
\nInstallation and maintenance had therefore been carried out by the same team.\u00a0 The decision process was facilitated by the company’s thorough knowledge of the system.\u00a0 It was decided to retrofit the system so that the system could function beyond 31st December 2014, the day on which R22 will no longer be used.<\/p>\n

The recommended solution:
\n<\/strong>\"\"
\nFollowing a study conducted with Climalife, it was decided that the refrigerant Performax LT would replace the R22.\u00a0 Having already had a positive experience with this refrigerant, Robert Rome, a manager at SPIE, explained that, “Performax LT is very suitable for this type of medium temperature, close-to-zero installation, unlike R404A, with which the increase in power would be higher and consequently pose a problem for the heat exchangers as they would no longer be able to keep up.”<\/p>\n

As Robert Romeu says, Performax represents an improvement in terms of cold production when compared to R404A.\u00a0 Furthermore, unlike this refrigerant, Performax does not require pipes to be changed or expansion valves to be replaced.\u00a0 In light of the recommendations made by Climalife, SPIE replaced the valve seals and adjusted the suction overheat.<\/p>\n

The retrofit stages:
\n<\/strong>\"\"As the fruit packaging unit was not in use at the time of the work, the various stages took place without causing any disruption to the client.<\/p>\n

First of all, the leak was repaired and the team, made up of Jose Arteaga nd Marc Bringard (SPIE refrigeration technicians) carried out a seal inspection.\u00a0 The R22 refrigerant was recovered and sent to Climalife to be treated.\u00a0 The compressors and oil tank were drained.\u00a0 A number of parts, such as the pressure tap hoses, solenoid valve seals, Schrader valve cores and pressure relief valves, were replaced.<\/p>\n

The team carried out a seal inspection by pressurising the installation with nitrogen for 24 hours at 22 bar.
\nBefore refilling the tank with POE Mobil EAL Arctic 22CC oil, the dryer cartridges and the oil filter were replaced.<\/p>\n

Finally, the system was fully drained over a period of 48 hours before being charged with Performax LT, which was supplied in 52-litre cylinders.
\nAfter commissioning, the technicians inspected the superheaters and subcooling process.\u00a0 Another oil change is scheduled for the end of the fruit harvest in October, to ensure that there is not an excessive amount of oil that had been used with R22 in the system.<\/p>\n

The results:
\n<\/strong>
\nWith regards to operating the installation, the client has not noticed any difference.\u00a0 The SPIE team has noted a slight increase in the power absorbed by the compressors, which is normal when R22 is replaced, and that the oil returns well.\u00a0 Robert Romeu and Jacky Piscitello (maintenance and service managers) are satisfied and will continue to recommend and use Performax LT in other installations.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n\u00a0Before conversion<\/strong><\/td>\n\u00a0After conversion<\/strong><\/td>\n<\/tr>\n
\u00a0Cooling capacity<\/strong><\/td>\n\u00a0550 kW<\/td>\n\u00a0550 kW<\/td>\n<\/tr>\n
\u00a0Condensing capacity<\/strong><\/td>\n\u00a0800 kW<\/td>\n\u00a0800 kW<\/td>\n<\/tr>\n
\u00a0Refrigerant
\n<\/strong><\/td>\n		\u00a0R-22<\/td>\n\u00a0Performax LT<\/td>\n<\/tr>\n
\u00a0Refrigerant load<\/strong><\/td>\n\u00a0600 kg<\/td>\n\u00a0600kg<\/td>\n<\/tr>\n
\u00a0Type\/brand of compressor<\/strong><\/td>\n\u00a0Copeland D8RJ 6000 DWM semi-hermetic compressors<\/td>\n\u00a0Copeland D8RJ 6000 DWM semi-hermetic compressors<\/td>\n<\/tr>\n
\u00a0Number of compressors<\/strong><\/td>\n\u00a05<\/td>\n\u00a05<\/td>\n<\/tr>\n
Evaporating temperature<\/strong><\/td>\n– 7\u00b0C<\/td>\n– 5\u00b0C<\/td>\n<\/tr>\n
\u00a0Condensing temperature
\n<\/strong><\/td>\n		Between +35\u00b0C and\u00a0+45\u00b0C<\/td>\n\u00a038\u00b0C<\/td>\n<\/tr>\n
\u00a0Evaporating pressure<\/strong><\/td>\n\u00a0 3 Bar<\/td>\n\u00a0 3,2 bar<\/td>\n<\/tr>\n
\u00a0Condensing pressure<\/strong><\/td>\n\u00a017,5<\/td>\n\u00a018,5 bar<\/td>\n<\/tr>\n
\u00a0Oil<\/strong><\/td>\n\u00a0Suniso 3 GS\u00a0initially replaced by\u00a0Mobil EAL 22 CC\u00a0in 2010<\/td>\n\u00a0Mobil EAL Artic 22 CC<\/td>\n<\/tr>\n
\u00a0Quantity of oil<\/strong><\/td>\n\u00a045 litres<\/td>\n\u00a045 litres<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

\u00a0
\nSPIE, a specialist in electrical and mechanical engineering, air conditioning, industrial refrigeration, communication and infrastructure, is responsible for maintaining the refrigeration unit of this fruit co-operative in Ille-sur-Tet (Southern France). <\/p>\n","protected":false},"author":14,"featured_media":135693,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9162],"tags":[],"product_cat":[],"class_list":["post-155241","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-studii-de-caz"],"_links":{"self":[{"href":"https:\/\/climalife.com\/ro\/wp-json\/wp\/v2\/posts\/155241","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/climalife.com\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/climalife.com\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/climalife.com\/ro\/wp-json\/wp\/v2\/users\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/climalife.com\/ro\/wp-json\/wp\/v2\/comments?post=155241"}],"version-history":[{"count":8,"href":"https:\/\/climalife.com\/ro\/wp-json\/wp\/v2\/posts\/155241\/revisions"}],"predecessor-version":[{"id":203304,"href":"https:\/\/climalife.com\/ro\/wp-json\/wp\/v2\/posts\/155241\/revisions\/203304"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/climalife.com\/ro\/wp-json\/wp\/v2\/media\/135693"}],"wp:attachment":[{"href":"https:\/\/climalife.com\/ro\/wp-json\/wp\/v2\/media?parent=155241"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/climalife.com\/ro\/wp-json\/wp\/v2\/categories?post=155241"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/climalife.com\/ro\/wp-json\/wp\/v2\/tags?post=155241"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/climalife.com\/ro\/wp-json\/wp\/v2\/product_cat?post=155241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}