District Energy

3nd Quarter 1996 | Volume 82 Number 1

District Cooling Proves Economic and Environmental Choice for Cleveland Buildings

Facing concerns about energy efficiency, operating economics and chlorofluorocarbon (CFC) phaseout regulations, Cuyahoga Savings Association turned to district cooling from Cleveland Energy Resources. The partnership has allowed Cuyahoga Savings, the owner of two downtown Cleveland buildings, to attract and keep tenants. With no more on-site chillers, fewer operating staff and fewer equipment problems, the buildings can admirably compete with new suburban office buildings by offering air-conditioning that guarantees year-round comfort.

FEATURES

Planning for the Future: Energy, the Environment and Our Cities

In an interview with District Energy magazine, James Schwab, senior research associate with the American Planning Association, reflects on how the nation's city planners are addressing energy and environmental issues. He identifies the shifting density and form of urban areas as the most significant issue faced by city planners today and discusses perceptions of district energy among APA's membership.

Central Cooling Plants Benefit Multibuilding Facilities

Wayne Robertson, P.E., Director of Energy Consulting, Heery International and Glenn Jardine, P.E., Vice President of Engineering, Heery International

There are many good reasons for multibuilding campuses to use centralized chilled-water plants for cooling, but not many do. Yet feasibility studies often identify the maintenance savings and many other benefits of central chiller plants compared to individual building systems. A resulting master plan for campus infrastructure paired with innovative financing can be a powerful savings tool for campus administrators. Article as it appeared in the August 1995 issue of Energy User News. Reprinted with permission.

Cooling Customer Interconnection Survey: A Summary of Findings

District cooling system operators were surveyed about their cooling system operations, particularly as they interface with customers. Respondents were asked to provide statistical data and to explain their companies' philosophies on the use of indirect vs. direct customer connections and controlling the customer's delta T. The survey reveals that the majority use direct customer connections and that more than half of the respondents maintain no physical or monetary control of delta T.

High Priority for District Heating in the Danish Financial Support System

Henrik Jersild, Journalist

District heating is such a Danish success story that it is receiving high priority in the Danish financial system. Denmark hopes to provide not only district heating knowledge and products to other European countries, but financial support as well through vehicles such as donations, loan guaranties and mixed-credit facilities. Article as it appeared in the News from DBDH, newsletter no, 1/1996. Reprinted with permission of the Danish Board of District Heating.

Enhancing Steam Operations in the Big Apple

Renato Derech, Engineer, Con Edison Steam Operations

In spite of challenges unique to congested Manhattan, Con Edison's 10-year Steam Enhancement Program is ahead of schedule. The program's objectives are (1) to eliminate failure-prone system components, including expansion joints, anchors and cast-iron fittings, and (2) to minimize the potential for release of asbestos from the steam pipes. Currently in its seventh year, the program has rebuilt 911 manholes and removed or replaced 1,722 anchors, 1,760 bellows joints and 623 cast-iron fittings.

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