AIR-SOURCE HEAT PUMP: FIELD MEASUREMENT OF CYCLING, FROSTING, AND DEFROSTING LOSSES, 1981-83
OAK RIDGE NATIONAL LABORATORY 1984
http://www.ornl.gov/sci/engineering_science_technology/eere_research_reports/electrically_driven_heat_pumps/advanced_cycle_development/dynamic_losses/ornl_con_150/ornl_con_150.pdf
OAK RIDGE NATIONAL LABORATORY 1984
http://www.ornl.gov/sci/engineering_science_technology/eere_research_reports/electrically_driven_heat_pumps/advanced_cycle_development/dynamic_losses/ornl_con_150/ornl_con_150.pdf