Comparison of Microturbines and Reciprocating Engine Generator Sets

Abstract

Microturbines are a relatively new technology for generation of electric power. Questions are often raised by potential customers, engineering firms, OEM’s, and government agencies about how microturbines differ from the traditional means of generating power using reciprocating engines as the prime mover. This paper describes the major construction elements of microturbines, along with the significant differences between microturbines and reciprocating engine generator sets. The comparisons are based on published manufacturer’s specifications at the time of writing and include exhaust emissions, electrical and total thermal efficiencies, fuel flexibility, maintenance, size, weight, vibration, required auxiliary equipment, and other application considerations.