Session: 04-31: High Hydrogen III

Paper Number: 81620

81620 - Combined Heat and Power Supply Demonstration of Micro-Mix Hydrogen Combustion Applied to M1A-17 Gas Turbine 

Kawasaki Heavy Industries, LTD. (KHI) has research and development projects for a future hydrogen society. Within the development of the hydrogen gas turbine, the key technology is stable and low NOx hydrogen combustion.

KHI, Aachen University of Applied Sciences, and B&B-AGEMA have investigated the possibility of low NOx micro-mix hydrogen combustion and its application to an industrial gas turbine combustor. From 2014 to 2018, KHI developed a Dry Low NOx (DLN) hydrogen combustor for a 2MW class industrial gas turbine by applying the micro-mix technology. Thereby, the ignition performance, the flame stability of equivalent engine start-up, idle conditions and load conditions were investigated. NOx emission values were falling below about half of the Air Pollution Control Law in Japan (84ppm at O₂-15%). Hereby, the elementary combustor development was completed.

From May 2020, KHI started the engine demonstration operation by using an M1A-17 gas turbine with a co-generation system located in the hydrogen-fueled power generation plant in Kobe City, Japan. During the first engine demonstration tests, adjustments of engine start-up and load control with fuel staging were investigated. On 21^st May, the electric power output reached 1,635 kW, which corresponds to 100 % load (ambient temperature 20 ˚C), and thereby NOx emissions of 65 ppm (O₂-15%, 60 RH%) were verified.

This paper presents the results of commissioning test and combined heat and power (CHT) supply demonstration test held from September 2020 to January 2021. In the commissioning test, grid connection, loading tests and load cutoff tests were successfully conducted. All results of environmental measurement tests (dust and soot, SOx, NOx, noise, vibration) satisfy the Japanese regulation values. After the commissioning test, combined heat and power supply demonstration tests have been conducted. During the demonstration test held on 4th November 2020, the heat and power supply to neighboring public facilities with 100% hydrogen and micro-mix combustion technology was achieved. The electric power output reached 1800kW at which the NOx emissions were 72 ppm (O₂-15%, 60 RH%) . The gas turbine efficiency was improved by about 1%-point compared to non-premixed type combustion with water injection as NOx reduction method. During a total equivalent operation time of 1040 hours, all micro-mix hydrogen combustor parts and the M1A-17 gas turbine, and the co-generation system were without any issues.

Presenting Author: Atsushi Horikawa Kawasaki Heavy Industries.Ltd

Presenting Author Biography: I graduated from KEIO university, Japan (Master Degree) and entered Kawasaki heavy industries, LTD. in 2002.<br/><br/>In these 10 years, I have engaged in the hydrogen combustion technology and hydrogen fueled gas turbine.

Authors:

Atsushi Horikawa Kawasaki Heavy Industries.Ltd
Mitsugu Ashikaga Kawasaki Heavy Industries.Ltd
Masato Yamaguchi Kawasaki Heavy Industries.Ltd
Tomoyuki Ogino Kawasaki Heavy Industries.Ltd
Shigeki Aoki Kawasaki Heavy Industries.Ltd
Manfred Wirsum RWTH Aachen University
Harald Funke Aachen University Applied Sciences
Karsten Kusterer B&B-AGEMA GmbH