Application of imitation steam'' systems to hot water district heating and cooling systems

Technical Report · Tue Oct 01 04:00:00 EDT 1991

DOI:https://doi.org/10.2172/5066089· OSTI ID:5066089

Aalto, P J; Chen, D B

Pequod Associates, Inc. and District Energy St. Paul, Inc. installed a pilot project of an innovative District Heating technology through a contract with the US DOE. This applied research was funded by the Energy Research and Development Act (94--163) for District Heating and Cooling Research. The experimental design is an intervention technique that permits hot water district heating systems to connect to buildings equipped with steam heating systems to connect to buildings equipped with steam heating systems. This method can substantially reduce conversion costs in many older buildings. The method circulates Imitation Steam, which is moist hot air, as a heating medium in standard steam radiators and steam heating coils. Based on the operation of the system during the 1989--90 and 1990--91 winter heating seasons, we conclude the following: the basic concept of using Imitation Steam was proved feasible. The performance of the system can be improved beyond the levels achieved in this installation. Imitation Steam did not cause significant corrosion in the piping system. The technology can be used by other district heating systems to lower conversion costs and increase market penetration. Among the additional benefits from this technology are: eliminating old, inefficient boilers; lower maintenance costs; improved fuel efficiency; reduced emissions.

• Research Organization: Pequod Associates, Inc., Boston, MA (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG01-90CE26601
• OSTI ID: 5066089
• Report Number(s): DOE/CE/26601-T1; ON: DE92001964
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320105* -- Energy Conservation
Consumption
& Utilization-- Building Services-- (1987-)
320106 -- Energy Conservation
Consumption
& Utilization-- Building Equipment-- (1987-)
BOILERS
BUILDINGS
COOLING
DISTRICT COOLING
DISTRICT HEATING
DOCUMENT TYPES
EFFICIENCY
ENERGY EFFICIENCY
FEASIBILITY STUDIES
HEAT EXCHANGERS
HEATING
INSTALLATION
PROGRESS REPORT
RETROFITTING
WATER HEATING