Comparative performance of two types of evacuated tubular solar collectors in a residential heating and cooling system. Final report, October 1 1977-September 30 1978 (including 1974-1977 operating results comparisons)
Two types of evacuated tubular solar collectors have been operated in space heating, cooling, and domestic hot water heating systems in Colorado State University Solar House I. An experimental collector from Corning Glass works supplied heat to the system from January 1977 through February 1978, and an experimental collector from the Phillips Research Laboratory, Aachen, which is currently in use, has been operating since August 1978. A flat absorber plate inside a single-walled glass tube is used in the Corning design, whereas heat is conducted through a single glass wall to an external heat exchanger plate in the Philips collector. The respective aperture areas are 50.0 m/sup 2/ and 44.7 m/sup 2/. Since system designs and conditions of operation were not identical, efficiencies and energy deliveries of the two evacuated tubular collectors should not be compared without recognition of these factors. But in comparison with conventional flat plate collectors, both types show substantially reduced heat losses and improved efficiency.
- Research Organization:
- Colorado State Univ., Fort Collins (USA). Solar Energy Applications Lab.
- OSTI ID:
- 5717016
- Report Number(s):
- COO-2577-19(Exec.Summ.)
- Country of Publication:
- United States
- Language:
- English
Similar Records
Evaluation of high performance evacuated tubular collectors in a residential heating and cooling system: Colorado State University Solar House I. Report for October 1, 1976--September 30, 1977
Evaluation of the Corning and Philips evacuated tubular collectors in a residential solar heating and cooling system. Final report, 1 May 1976--1 December 1976
Related Subjects
140901 -- Solar Thermal Utilization-- Space Heating & Cooling
141000* -- Solar Collectors & Concentrators
ABSORPTION REFRIGERATION CYCLE
AIR CONDITIONING
BUILDINGS
COLORADO
COMPARATIVE EVALUATIONS
EFFICIENCY
EQUIPMENT
EVACUATED COLLECTORS
EVACUATED TUBE COLLECTORS
HEATING
HOUSES
NORTH AMERICA
PERFORMANCE TESTING
RESIDENTIAL BUILDINGS
ROCKY MOUNTAIN REGION
SOLAR AIR CONDITIONING
SOLAR COLLECTORS
SOLAR EQUIPMENT
SOLAR HEATING
SOLAR SPACE HEATING
SOLAR WATER HEATING
SPACE HEATING
TESTING
USA