skip to main content

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

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.
Authors:
;
Publication Date:
OSTI Identifier:
6377649
Report Number(s):
DOE/CS/32867-T2; COO-2867-8
DOE Contract Number:
AS02-76CS32867
Resource Type:
Technical Report
Research Org:
Colorado State Univ., Fort Collins (USA). Solar Energy Applications Lab.
Country of Publication:
United States
Language:
English
Subject:
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