Lundbeck Pharmaceuticals
Planning / Implementation / Main components |
Star Refrigeration Ltd. |
Refrigerant |
Ammonia (NH3) |
System start-up |
2001 |
The Danish pharmaceuticals group Lundbeck Pharmaceuticals operates a medicine-manufacturing plant in Seal Sands, England. Star Refrigeration assisted the company with extending its production capacity. |
|
Demands |
Lundbeck Pharmaceuticals needed to expand its capacity due to increasing demand. The production processes require very specific temperature patterns, with temperatures varying widely from -85 to 260°C. Therefore, a refrigeration solution was required that is both high-performance and environmentally friendly. |
Solution |
Star Refrigeration developed two custom air-cooled ammonia systems with a modular design that minimized onsite assembly and start-up, and that each supply one circuit with cold energy. The regular 5°C temperature cycle chills 400 m³ of the coolant Therminol D12 per hour, with a refrigeration output of 1,400 kW. The low-temperature cycle chills 50 m³ Therminol D12 to -25°C, with a refrigeration output of 220 kW. Both cycles use soundproof screw compressors and high-performance fully welded plate and shell evaporators, which allows for minimizing the ammonia charges. |
Technical data:
Type of facility |
air-cooled ammonia plant |
Refrigerant |
NH3 |
Refrigerating volume |
700 kg |
Secondary refrigerant |
Therminol D12 |
Refrigerating capacity |
1.4 MW + 220 kW |
Refrigerants volume |
400 m³ + 50 m³ |
Main components |
Soundproof screw compressors, fully welded plate and shell evaporators, air cooled condensers, tanks for the liquid coolant |
Special features / Comments |
The refrigeration systems are equipped with accumulator tanks for the liquid coolant, which ensures the compressors do not short-cycle and facilitates maintenance. Star Refrigeration equipped the system with state-of-the-art controls and ammonia detectors. The plant's modular structure allows for easy and cost-effective extensions. |
Contact:
Star Refrigeration Ltd.
David Blackhurst
Thornliebank Industrial Estate
UK-Glasgow G46 8JW
Phone: +44 (0)141 638 7916
Fax: +44 (0)141 638 8111
E-mail: dblackhurst@star-ref.co.uk