COOLING ELECTRONIC EQUIPMENT ON SHIPS

An improved method for cooling electronic equipment in ships has been studied at the US National Bureau of Standards on behalf of the US Navy Bureau of Ships. The method is based on transferring heat from the equipment cabinet through an intermediate coolant to sea water as the ultimate heat sink. Present-day equipment has tended to rely for cooling mainly on compartment air provided by the air conditioning and ventilating system, but the rapid increase in the use of electronics on board modern vessels imposes a burden on the ship's facilities and could subject the equipment to dangerous overheating. The method of applying convection was developed and evaluated experimentally on a console containing a number of conventional components assembled using standard chassis construction. Electrical power input to the console was about 1,200 W. An air-to-liquid heat exchanger served to transfer heat from the circulating air to a flow of cooling water. By measuring the flow rate and temperature rise of the cooling water, the quantity of heat removed by the system could be calculated. A comparison between this quantity and the electrical power input provided a measure of the overall thermal efficiency. It was found that the cooling system removed 72% of the heat produced within the console.

• Corporate Authors:

  Davis House

  Box 109, 69/77 High Street
  Croydon, Surrey,   England 
• Publication Date: 1977-3

Media Info

• Pagination: 1 p.
• Serial:
  • Refrigeration and Air Conditioning
  • Volume: 80
  • Publisher: Davis House

Subject/Index Terms

• TRT Terms: Cooling systems; Electronic equipment; Heat transfer; Thermal efficiency
• Subject Areas: Bridges and other structures; Marine Transportation;

Filing Info

• Accession Number: 00163436
• Record Type: Publication
• Source Agency: British Ship Research Association
• Files: TRIS
• Created Date: Oct 29 1977 12:00AM