REFRIGERATION -- PRINCIPLES OF MECHANICAL REFRIGERATION
1964 · Department of Defense, Defense Imagery (via FedFlix)
Finding US Government work
The record names a federal body as the creating agency: Department of Defense. A work prepared by an officer or employee of the United States Government as part of that person's official duties has no US copyright (17 U.S.C. 105; before 1978, section 8 of the 1909 Act).
The record names a federal body as the creating agency. A work prepared by an officer or employee of the United States Government as part of that person's official duties has no US copyright (17 U.S.C. 105; before 1978, section 8 of the 1909 Act). This says nothing about copyright outside the United States, or about music, stock footage or other material the film may incorporate.
- Creating body, as recorded
- Department of Defense
- DoD production number
- PIN 27633
- Internet Archive item
- gov.dod.dimoc.27633 (uploader's licence mark: http://creativecommons.org/publicdomain/zero/1.0/)
The record
The Internet Archive item's description, as transcribed by the uploader from the source archive's record. Check it against the National Archives catalog entry linked above.
Department of Defense - SHOWS APPLICATION OF BASIC PHYSICS OF HEAT TRANSFER IN REFRIGERATION UNITS. EXPLAINS TEMPERATURE CHANGES IN REFRIGERANT PASSING THROUGH THE EXPANSION VALVE, COMPRESSOR, CONDENSER AND EVAPORATOR AS IT CARRIES HEAT TO THE OUTSIDE AIR. - DOD PIN 27633