skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Waste water heat recovery appliance. Final report

Technical Report ·
DOI:https://doi.org/10.2172/6553259· OSTI ID:6553259

An efficient convective waste heat recovery heat exchanger was designed and tested. The prototype appliance was designed for use in laundromats and other small commercial operations which use large amounts of hot water. Information on general characteristics of the coin-op laundry business, energy use in laundromats, energy saving resources already in use, and the potential market for energy saving devices in laundromats was collected through a literature search and interviews with local laundromat operators in Fort Collins, Colorado. A brief survey of time-use patterns in two local laundromats was conducted. The results were used, with additional information from interviews with owners, as the basis for the statistical model developed. Mathematical models for the advanced and conventional types were developed and the resulting computer program listed. Computer simulations were made using a variety of parameters; for example, different load profiles, hold-up volumes, wall resistances, and wall areas. The computer simulation results are discussed with regard to the overall conclusions. Various materials were explored for use in fabricating the appliance. Resistance to corrosion, workability, and overall suitability for laundromat installations were considered for each material.

Research Organization:
ABL Corp., Fort Collins, CO (USA)
DOE Contract Number:
FG48-81R801073
OSTI ID:
6553259
Report Number(s):
DOE/R8/01073-T1; ON: DE84015780
Resource Relation:
Other Information: Portions are illegible in microfiche products
Country of Publication:
United States
Language:
English