Direct contact liquid-liquid heat exchanger for solar heated and cooled buildings. Final report, January 1, 1979-May 30, 1980

Technical Report · Sun Jun 01 00:00:00 EDT 1980

DOI:https://doi.org/10.2172/6377649· OSTI ID:6377649

Karaki, S.; Brothers, P.

The technical and economic feasibility of using a direct contact liquid-liquid heat exchanger (DCLLHE) storage unit in a solar heating and cooling system is established. Experimental performance data were obtained from the CSU Solar House I using a DCLLHE for both heating and cooling functions. A simulation model for the system was developed. The model was validated using the experimental data and applied in five different climatic regions of the country for a complete year. The life-cycle cost of the system was estimated for each application. The results are compared to a conventional solar system, using a standard shell-and-tube heat exchanger. It is concluded that while thare is a performance advantage with a DCLLHE system over a conventional solar system, the advantage is not sufficiently large to overcome slightly higher capital and operating costs for the DCLLHE system.

• Research Organization: Colorado State Univ., Fort Collins (USA). Solar Energy Applications Lab.
• DOE Contract Number: AS02-76CS32867
• OSTI ID: 6377649
• Report Number(s): DOE/CS/32867-T2; COO-2867-8
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
DIRECT CONTACT HEAT EXCHANGERS
PERFORMANCE
SOLAR HEATING SYSTEMS
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
ECONOMIC ANALYSIS
EFFICIENCY
FEASIBILITY STUDIES
HEAT TRANSFER FLUIDS
HOUSES
PHTHALATES
SENSIBLE HEAT STORAGE
SOLAR COOLING SYSTEMS
SOLAR SPACE HEATING
THERMAL ENERGY STORAGE EQUIPMENT
BUILDINGS
CARBOXYLIC ACID SALTS
ECONOMICS
ENERGY STORAGE
ENERGY SYSTEMS
EQUIPMENT
FLUIDS
HEAT EXCHANGERS
HEAT STORAGE
HEATING
HEATING SYSTEMS
RESIDENTIAL BUILDINGS
SIMULATION
SOLAR EQUIPMENT
SOLAR HEATING
SPACE HEATING
STORAGE
140901* - Solar Thermal Utilization- Space Heating & Cooling