Economical Study of a Boiler Fueled with DME

Abstract

Abstract In this paper, the cost-based function has been used to study the economy of a DME boiler (operating costs). The contribution of the emissions of major pollutants (CO2, NOx and CO) to the external costs are calculated. About 88% external costs is produced by CO2 emission. In addition, the internal costs and external costs and total operating costs are calculated. Subsequently, the operating costs of DME are used to compared with fuel oil. Clearly, not only the internal costs but the external costs of fuel oil are higher than that of DME. Importantly, the emissions of SO2 and SO3 are produced when boiler fueled with fuel oil. The use of DME leads to annual saving 299375.68 US$ (saving efficiency about 41%) comparing with fuel oil.