Solar heating system
A solar water heating system is described operating in a closed circuit and making use of a change of phase of a working fluid as a heat transfer medium. There is at least one collector to be exposed to sunlight for transmitting radiant solar energy to the working fluid in order to convert the fluid into a liquid-vapour mixture, the collector having an inlet and an outlet through which the liquid-vapour mixture exits. A heat exchanger having an inlet and an outlet is included, the heat exchanger being of the type that allows free gravity flowing of the liquid that condenses therein. A hot water storage reservoir is connected to the heat exchanger to recover and store the heat extracted from the working fluid in the heat exchanger. First piping means connects the outlet of the at least one collector to the inlet of the heat exchanger, the first piping means including a phase-separator mounted thereon adjacent the outlet of the at least one collector to extract the liquid phase from the vapour phase in the liquid-vapour mixture exiting the collector. Second piping means returns the liquid phase extracted in the phase separator to the inlet of the at least one collector whereby the collector is constantly wet and the heat exchanger is supplied with the working fluid in vapour phase only through the first piping means. Third piping means connects the outlet of the heat exchanger to the inlet of the at least one collector through the phase separator and the second piping means. Pumping means returns the working fluid from the heat exchanger to the at least one collector through the third piping means.
- Assignee:
- Inst. National de la Recherche Scientifique
- Patent Number(s):
- US 4603685
- OSTI ID:
- 5425514
- Country of Publication:
- United States
- Language:
- English
Similar Records
Solar water heating system
Solar heater
Related Subjects
140907* -- Solar Thermal Utilization-- Water Heating
APPLIANCES
CONTROL
CONTROL EQUIPMENT
DESIGN
DISPERSIONS
EQUIPMENT
EVAPORATION
FLOW REGULATORS
FLUIDS
GASES
HEAT EXCHANGERS
HEAT TRANSFER FLUIDS
HEATERS
LIQUIDS
MATERIALS
MIXTURES
OPERATION
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PIPES
PRESSURE CONTROL
PUMPS
SAMPLING
SOLAR COLLECTORS
SOLAR EQUIPMENT
SOLAR WATER HEATERS
THERMAL CONDUCTIVITY
THERMAL INSULATION
THERMODYNAMIC PROPERTIES
VALVES
VAPOR CONDENSATION
VAPORS
WATER HEATERS
WORKING FLUIDS