Case Studies

Oil and Gas – Supply of AHU and Ancillary Equipment

  • Making use of the company’s network, Lightfoot also were contracted to supply all ancillary equipment required to carry out the installation.
  • Involved production of the technical support documentation to allow CE marking.
  • Design incorporated the use of an inverter driven system. This enables slow ramp start up, preventing a high current spike on initial starts and fine control of the compressor dependant on system load.
  • Developed an off-unit control panel wiring design solution using an anaconda to allow ease of installation.
  • Incorporated an innovative design of a split frame. This allowed the whole unit to be broken into 3 pieces, with all pipework and components remaining attached to prevent having to remove parts and pipework. It also allows easier movement around the rig and installation.
  • Control system design allows effortless interchange of control variable, either suction pressure or temperature.

Oil and Gas – Installation and Commissioning

  • Making use of the company’s network, Lightfoot also were contracted to supply all ancillary equipment required to carry out the installation.
  • Involved production of the technical support documentation to allow CE marking.
  • Design incorporated the use of an inverter driven system. This enables slow ramp start up, preventing a high current spike on initial starts and fine control of the compressor dependant on system load.
  • Developed an off-unit control panel wiring design solution using an anaconda to allow ease of installation.
  • Incorporated an innovative design of a split frame. This allowed the whole unit to be broken into 3 pieces, with all pipework and components remaining attached to prevent having to remove parts and pipework. It also allows easier movement around the rig and installation.
  • Control system design allows effortless interchange of control variable, either suction pressure or temperature.

Design Review of Air-Conditioning System for Royal Navy

  • Lightfoot also reviewed historical operating data and failure rates. Using Root Cause Analysis Lightfoot was able identify changes in design that will prevent future equipment failures.
  • Reviewed equipment and component availability and used this information to produce an obsolescence report. Where shortfalls were identified, suitable (fit, form and function) replacements were found and detailed. This ensured continuity and future parts availability.

DASS

Give the maintainers the control and accuracy required when servicing critical aviation systems.

Built in – Drain, Clean, Pressure Test, Vacuum Dehydration, Top up, Incondensable Purge and Weigh Platform the integrated service station has an edge on the competition.

Having the facility to be set up for multi-use or customise application they cope with all commonly used refrigerants for a fully adaptable solution.

Apache

Give the maintainers the control and accuracy required when servicing critical aviation systems.

Built in – Drain, Clean, Pressure Test, Vacuum Dehydration, Top up, Incondensable Purge and Weigh Platform the integrated service station has an edge on the competition.

Having the facility to be set up for multi-use or customise application they cope with all commonly used refrigerants for a fully adaptable solution.

This unit is Ruggedised for use in the field. This unit has the ability to be adapted for used on vehicles

Brazilian Navy – Replacement Refrigeration Plant

  • Manufactured in the UK for dispatch and delivery to Brazil.
  • Semi-hermetic screw compressor was used, providing 25% – 100% capacity control.
  • Production of technical support documentation.
  • Design incorporated a HMI Touch screen for control, data trending and retrieval.
  • Complex stakeholder engagement – Liaising with technical authorises abroad and representatives in London to ensure product is fit for purpose.
  • Assisted with technical details of the system and its integration into the on-board system.

Oil and Gas – Refrigeration System

  • Production of technical support documentation for CE marking.
  • Unit were sized for differing rooms temperature with one especially designed to act as either a freezer or a higher temperature room.
  • 100% system redundancy. Design of system and evaporators enabled maintenance to be carried out on one system, but allow continual running of the second system to prevent down time.

Oil and Gas – Air Handling Unit

  • Production of technical support documentation to enable CE marking.
  • Inverter driven control. This prevents a high current spike on initial starts and fine control of the system load.
  • Control system design allows effortless interchange of control variable, either suction pressure or temperature.

Aviation – Ground Cooling Unit for Civilian Airports

Features included:

  • Variable delivery, an air mass flow rate of between 200lbs and 700lbs per min
  • Maximum delivery pressure 60 inches (14.95kPa)
  • Minimum air delivery temperature 8°C
  • Semi-hermetic screw compressor with 25%–100% capacity control
  • Ecological refrigerant R134a (ODP=0)
  • Coated heat exchanger coils
  • Stepless frequency control blower motor
  • Fail-safe cut outs and safety interlocks
  • Safety pressure relief valve

Refrigerant Purification Equipment

  • Takes contaminated R245fa and removes this contamination to produce a 99.9% purified substance. This is considered medical grade and is cleared for use on aircraft.
  • Developed by Lightfoot and is operation to clean and allow re-use of refrigerant.

Maritime – Nuclear Waste Carriers

Ministry of Defence

Lightfoot Refit and upgraded the air conditioning and refrigeration plants on nuclear submarines.

Ministry of Defence

Lightfoot supplied replacement refrigeration plants for both Type 22 and Type 42 destroyers.

Ministry of Defence

Design and Manufacture of all air handling and refrigeration plant for MCMV.

British Nuclear Fuels

Detailed design of an air conditioning plant for proposed new vessel.

West Kent

Supply of Compressors for Coldstores.

Christian Salvesen

Carried out the conversion of Underground WW2 tunnels to a Large Coldstore Distribution Centre.

Cardiff Ice Rink

Carried out the design, manufacture, supply, Installation and commissioning of refrigeration plant.

Dalkia

Varying requirements, Lightfoot carried out numerous supply & installation of air-conditioning equipment in offices/computer rooms.

Springlakes CC

The Supply and Installation of refrigeration equipment to Maggot Cold Room.