CONTENTS

Essay

3-weeks in The School of Gas Turbine Technology

KAWATA Osamu /265

Technical Comments and Reports

Technical Problems for Large Scale Introduction of Dispersed Generation Systems

ISHIKAWA Tadao /268

Water Atomization Cooling System to Improve Gas Turbine Performance

TAKEHARA Isao, MURATA Hidetaro /274

Ni-base Superalloys and New Materials: Present Status and Possibilities in Future

HARADA Hiroshi /278

Lecture

Introduction to Gas Turbine
－Materials Technology for Gas Turbine (1)－

NITTA Akito /285

Contributed Papers

High Pressure Tests of Hydrogen Turbine Combustor

SAITOU Tsukasa, MURAYAMA Motohide, TOH Hidemi, YASU Shohachi, HISAMATU Tohru, FUKAHORI Osamu /291

Development of the Gas Turbine Maintenance Management Program of Main Hot Gas Parts

MORITSUKA Hideto, FUJII Tomoharu, TAKAHASHI Takeshi, KUBO Kazutoshi, KOUMURA Yoshio /296

Study on the Correlation of the Altitude Ignitin Parameter and Lightoff Air Fuel Ratio for Jet Engine Combustors

SATO Yukinori, TOH Hidemi, TAGASHIRA Takeshi, WATANABE Takeshi, NIIOKA Takashi /302

Letters fro R&D Groups

Research of High Temperature and High Speed Bearings in NTN Corporation

FUJII Kenji /309

A Study at Laboratory of Applied Mechanics, Department of Mechanical Engineering, Tokyo University of Mercantile Marine

JIBIKI Tatsuhiro, SHIMA Masayuki /311

Research and Development of Gas Turbine for Cogeneration System at OSAKA GAS CO., LTD.

WAKABAYASHI Tsutomu /313

Tearoom

Unit and Figures (Ⅰ)

TAKAHARA Kitao /315

Communicated Articles

Attending at the ISROMAC-8

ADACHI Tsutomu /319

New Products

Dry Low-NOx Combustor for SB5 Gas Trubine Fueled by City Gas

TAKAGI Toshiyuki /321

Photograph on Cover

60 HP General Purpose Small Gas Turbine

ARAKI Takashi /323

Data

Production Statistics of Gas Turbines and Superchangers in 1999 /325

GTSJ Activities

/334

Notice

/318