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U.S. Department of Energy
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Retrofitting for energy savings with hydronic heating systems

Journal Article · · Spec. Eng.; (United States)
OSTI ID:6500061
Because of fuel prices, it has become more important than ever before for the heating industry (manufacturers, engineers and contractors) to provide building owners with the greatest possible amount of useful heat from fuel burned. Many factors affect the performance and operating costs of heating systems using low-pressure steam or hot-water boilers built in accordance with Section IV of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code. In light of the many factors involved, engineers must follow basic guidelines in designing retrofitted or new heating systems to ensure the most efficient system operation. Though no single suggestion will account for a major incremental increase in system efficiency, a significant total increase can be achieved by making a number of the improvements described. Stressed is basic boiler performance (and related factors) affecting seasonal operating efficiency. The boilers described are used to heat commercial, institutional, and industrial buildings with hot water to 250 F or steam to 15 psig. Boilers for process loads are not included. The major variables affecting seasonal operating efficiency are boiler design, burner design, boiler size, boiler firing rate, boiler temperature, and frequency of cycling.
Research Organization:
Weil McLain Corp., Michigan City, IN
OSTI ID:
6500061
Journal Information:
Spec. Eng.; (United States), Journal Name: Spec. Eng.; (United States) Vol. 49:6; ISSN SPEND
Country of Publication:
United States
Language:
English

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