Heat recovery in refrigeration: II

Journal Article · Tue Feb 01 00:00:00 EST 1983 · Heat., Piping Air Cond.; (United States)

OSTI ID:5964373

Nussbaum, O J

Evaluates refrigeration systems with regard to controls, hot water recovery units, packaged condensing units, and energy efficiency. Most present day controls are microprocessors that programmed to react to a multiplicity of conditions such as outdoor temperature, condensing pressure, space humidity and time of day. Hot water heat recovery units are heat exchangers, usually of the double tube counterflow type, which are connected on the refrigerant side to the compressor discharge. Since the most effective energy saving method in refrigeration systems is operation at reduced head pressure, many commercial packaged systems have been redesigned to offer more condensing capacity, which means either increased air cooled condenser surface or the option to add evaporative cooling of the condenser during the summer season. Another more obvious option is a water cooled booster condenser which is placed in operation at times when condensing pressure exceeds a predetermined limit, or a complete changeover to water cooled condensing.

• Research Organization: Halstead and Mitchell Div., Halstead Industries, Scottsboro, AL
• OSTI ID: 5964373
• Journal Information: Heat., Piping Air Cond.; (United States), Vol. 55:2
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
42 ENGINEERING
HOT-WATER SYSTEMS
HEAT RECOVERY
HEAT RECOVERY EQUIPMENT
REFRIGERATION
CONDENSERS
CONTROL EQUIPMENT
CONTROL SYSTEMS
DESIGN
ENERGY EFFICIENCY
HEAT EXCHANGERS
MICROPROCESSORS
VALVES
COMPUTERS
COOLING
EFFICIENCY
ELECTRONIC CIRCUITS
ENERGY RECOVERY
ENERGY SYSTEMS
EQUIPMENT
FLOW REGULATORS
GEOTHERMAL SYSTEMS
HYDROTHERMAL SYSTEMS
MICROELECTRONIC CIRCUITS
RECOVERY
320304* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Waste Heat Recovery & Utilization
320100 - Energy Conservation
Consumption
& Utilization- Buildings
420200 - Engineering- Facilities
Equipment
& Techniques