Date of Award

1985

Document Type

Thesis

Department

Mechanical & Aerospace Engineering

Program/Concentration

Mechanical Engineering

Committee Director

A. Sydney Roberts, Jr.

Committee Member

Sushil K. Chaturvedi

Committee Member

Robert L. Ash

Call Number for Print

Special Collections; LD4331.E56K84

Abstract

The Godwin Life Science Building on the Old Dominion University campus presents an interesting problem in terms of energy conservation. The building is the maximum energy resource consumer on the campus, having a criterion value of 234 KBtu/sq.ft-year (2657 MJoules/sq. rneter-year). A Simplified Energy Analysis Method (ASEAM) loads and systems computer program was used to simulate the building and its heating, ventilating, and air conditioning (HVAC) plant in order to understand the building's high annual energy resource consumption rate, and to devise ways to overcome it. The main goal was to assess and propose energy conservation improvements to the existing building. The required measurements were carried out on the large auditorium of the building in winter season in order to obtain a partial validation of the ASEAM computations.

The present work investigates the effect of occupancy status control, and heat exchanger model to recover the energy from the exhaust air on the third floor, the lighting diversity factor, the chiller C.O.P., and the glass shading coefficient on the building's annual site energy requirements. The implementation of an energy management control system (EMCS) in the multi-zone building, and the addition of heat exchanger coils to the third floor could yield projected savings of $58,000 to $116,000 per year. The centrifugal chiller of the HVAC system is highly oversized and hence does not operate efficiently. The high electric consumption due to lights could be reduced considerably with the aid of EMCS. The total site energy increases insignificantly with decreasing glass shading coefficient. This result is in contradiction with accepted definitions of the glass shading coefficient.

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DOI

10.25777/kc87-5x85

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