Tadahiko Kishikawa

A Microturbine Cogeneration Package for Japanese Market

This paper presents the specifications, design, verification testing and performance of a microturbine cogeneration package that conforms to Japanese laws, standards and codes. Elliott microturbine engine was adopted to the package, and peripheral equipments such as a low noise enclosure, a recuperator, a power conditioning system (PCS), a fuel gas compressor and heat recovery equipments were developed. Verification tests such as a containment test, an over speed trip test, a drop load test, pressure tests and strength calculations were conducted under the supervision of an inspection agency, and certified to satisfy requirements of the Japanese technical standards of gas turbines for power generation and microturbines. Other verification tests for the PCS and the fuel gas compressor were conducted, and electric power companies and gas companies accepted that the equipments were conformed to each technical standard. This paper also presents numerous novel features of the package such as low noise, low vibration, alternative heat output of hot water or steam, easy engineering, installation and maintenance.Copyright

Remote Monitoring and Failure Diagnosis for a Microturbine Cogeneration System

This paper presents the implementation of failure detection and diagnosis, and predictive maintenance for a microturbine cogeneration system. It also introduces a remote monitoring system with capabilities for high-capacity high-speed data acquisition and storage, as well as data sharing via the Internet. Additionally, this paper provides failure diagnosis that uses high-speed transient data in order to determine the root cause of microturbine emergency shutdown or start failure, as well as failure prediction that uses long-range trend data in order to carry out the appropriate maintenance with some examples.© 2007 ASME