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- W2044332661 abstract "The problem with electric motor-driven HVAC systems is high electric demand charges during on-peak periods. Although the peak demand for electricity occurs for a limited time, electric demand charges can often account for approximately half of the total air-conditioning bill. Hybrid HVAC systems have been proposed as efficient solutions to offset these charges. The hybrid HVAC plant employs a chiller combination powered by electricity and natural gas. It can be programmed to select the most cost-effective energy source. An innovative approach to evaluate the economic performance of hybrid HVAC systems is presented. This model is based on the Life Cycle Cost Analysis Methodology. Our model considers dynamic changes in gas and electricity prices and compares the overall benefit of hybrid systems with traditional gas or electricity systems. For predicting the future electricity and natural gas prices, the discount factors adjusted for fuel price escalation, by end-use sector and fuel type should be provided. In the proposed method, an increasing factor is modeled by a binomial lattice. By conducting a Monte Carlo simulation based on the binomial lattice the factor range for each period is obtained. One of Georgia Institute of Technology's chiller plants is considered as a case study. Through conducting a case study on one of the Georgia Institute of Technology's chiller plants, it is shown that the overall cost-saving benefit of hybrid systems is sufficiently large to justify the additional expenses." @default.
- W2044332661 created "2016-06-24" @default.
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- W2044332661 date "2010-05-04" @default.
- W2044332661 modified "2023-09-28" @default.
- W2044332661 title "Life Cycle Cost Analysis of Hybrid Chiller Plants under Dynamic Utility Prices" @default.
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- W2044332661 doi "https://doi.org/10.1061/41109(373)149" @default.
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