International Journal of Recent Technology and Engineering (IJRTE) ISSN: 2277-3878, Volume-4 Issue-4, September 2015 A Study of Technology Used and Comparison Between Traditional and Hf120 (Advanced Aero Engine) Vivek Kumar, Rajeshwar Prasad Singh, Vikash Kumar Abstract- Paper includes detailed study of the HF120 turbofan The two companies began talks in 2003 with the goal of engine, which is the first product from GE Honda Aero providing durable and economical engines for business Engines. This paper is to showcase state of art technology aviation. The idea was to combine the strengths of each involved in gas turbine engines and to bring out various aspects and future trends in field of propulsion technology. parent company in technology leadership, manufacturing Paper also includes development in gas turbine engine that have expertise, and performance engine tradition to provide helped to achieve great fuel efficiency and less noise, increased modern business aviation engines with the performance power, thrust and also advancements made in the field of and availability of large commercial engines. A strategic materials have contributed in a major way in gas turbine in alliance between the two companies lead to planning of accordance to the future trends that have come up in recent 50/50 project intended to develop, certify and market the years. The paper reviews the evolutionary process that has taken place over the years with reference to the different design Honda engine. The HF120, product from GE Honda Aero concepts used for aero engines. At General Electric, the official Engines, utilizes Honda's world-renowned expertise in corporate slogan is “Imagination at work.” At Honda, it’s “The manufacturing, research and development and GE's power of dreams.” Two of the world's most respected names in experience in aerospace technology, durability, and propulsion have come together to design and manufacture certification. The HF120 comes from some of the most engines for the next generation of very light jets. The joint innovative people in the world and is designed to deliver venture, known as GE Honda Aero Engines, combines the strengths of two industry leaders recognized for delivering high performance, durability, and value to business aviation. performance and reliable engines. The HF120 is an advanced The emergence of light, low-cost business jets creates 2000lb thrust class turbofan propulsion system. It incorporates a considerable opportunity for highly reliable and durable development philosophy and operational features consistent jet engines. The GE Honda HF120 durability will be with Honda's tradition of Innovation and GE's rigorous design ideally suited for high-utilization aircraft, such as the and testing standards. emerging air taxi segment. Lightweight and efficient Keyword HF120, Honda's, GE's, design and testing, “Imagination at work.”, GE Honda, 2000lb design enables the performance, range and comfort required of the business jet customer. This engine meets all I. INTRODUCTION future demands that is environment friendly, noise reduction, lower sfc, higher efficiency, light weight, 1.1 GE HONDA AERO ENGINE increased thrust and more time before overhaul (TBO). The forces associated with fluid movement are well known; we are all familiar with the power of strong winds, II. HISTORY or waves crashing onto rocky shorelines. However, the Honda began developing a small turbofan in 1988. The ingenuity of mankind has enabled air and water flow, wind company began testing the first design, the HFX-01in 1995, and wave energy to be successfully harnessed, to provide followed by the HFX-20 in 2000. Experience with the beneficial movement and power through the ages. The earlier designs led to the development of the first production gas turbine is a machine that burns fuel to provide energy engine, the 1,700 lb thrust (7.6kN) HF118. A proposed joint to create a moving flow of air, and to extract valuable venture with GE Aviation was approved and GE Honda power or generate useful thrust from that movement. The Aero Engines was created in 2004, as a 50:50 joint jet engine has revolutionized air transport over the last 50 company to design, manufacture, sell, and support a years, a jet engine employs Newton’s laws of motion to family of innovative engines in the 1,000-3,500 pound generate force, or thrust as it is normally called in thrust (4.4-15.6kN) Class for the business aviation aircraft applications. A GE Honda Aero Engines, is a industry. Honda Aircraft Company, Inc. was created on 4 50/50 joint venture between GE Aviation and Honda Aero, August 2006 and launched the Honda Jet on 17 October Inc., and was formed in October 2004 to design, 2006. Full engine testing of the HF120 began in manufacture, sell, and support a family of innovative September 2007. The HF120 features a one piece, 18.5- engines in the 1000 to 3500 pound thrust class for the inch, wide-chord swept fan blisk, two-stage low-pressure business aviation industry. (LP) compressor and Honda- developed counter-rotating high-pressure (HP) compressor based on a titanium impeller. Honda launched the HF120 at the 2006 NBAA Revised Version Manuscript Received on September 05, 2015. show, as the power plant for two nascent business jet Vivek Kumar, Flat Number A-204, SPL APARTMENT, programmes; Honda’s own 8-seat Honda Jet and Samethanahalli, Karnataka, Bangalore 560067. India Spectrum Aerospace’s Rajeshwar Prasad Singh, Flat Number A-204, SPL APARTMENT, Samethanahalli, Karnataka, Bangalore 560067. India Freedom light jet. Certification Vikash Kumar, Flat Number A-204, SPL APARTMENT, and first customer delivery was Samethanahalli, Karnataka, Bangalore 560067. India subsequently set back again Published By: Retrieval Number: D1483094415/2020©BEIESP Blue Eyes Intelligence Engineering 23 & Sciences Publication A Study of Technology Used and Comparison Between Traditional and Hf120 (Advanced Aero Engine) and rescheduled for the second half of 2012. In June 2011, size market. The joint venture agreement between GE and flight testing of the FAA- conforming Honda Jet achieved Honda currently covers a maximum thrust rating of 3,500lb- new milestones, including a maximum speed of 425 knots thrust (13.2kN), but a 5,000lb-thrust (22kN) class engine (TAS)), a rate of climb of 3,990 feet per minute and would be competitive with engines produced by rivals Pratt reaching the aircraft's maximum operating altitude of & Whitney. 43,000 feet. Honda at the NBAA in Las Vegas announced a 2.2 STUDY OF BASIC GAS TURBINE ENGINE further 12-month slippage in certification and customer deliveries in October 2011, after it emerged that, following Most of the gas turbine engines are internal combustion icing tests conducted in February 2011, a redesign had been engines. A gas turbine engine extracts energy from the required of the HF120s titanium fan blisk. The first flow of a combustion gas. Energy is added to the gas stream Honda Jet test aircraft fitted with modified fan blisks in the combustor, where fuel is mixed with air and ignited. joined the test programme in November 2011. The slippage In the high-pressure environment of the combustor, results from the extra time needed for engine and aircraft- combustion of the fuel increases the temperature. The level retesting. Seven engines with the enhanced fan blisk products of the combustion are forced into the turbine design were to be used for the overall certification section. There, the high velocity and volume of the gas flow programme, which is now expected to be completed in the is directed through a nozzle over the turbine's blades, second quarter of 2012, followed by US Federal Aviation spinning the turbine, which powers the compressor and, for Administration certification of the engine in the second some turbines, drives their mechanical output. The energy half of 2013.Honda reports over 100 orders for the $4.5 given up to the turbine comes from the reduction in the million Honda Jet and expects to sell at least 400 aircraft in the temperature and pressure of the exhaust gas. Gases passing HF120’s thrust class each year. In June 2011 GE Aviation through an ideal gas turbine undergo three thermodynamic confirmed that it was in talks with other airframes about processes. These are isentropic compression, isobaric the next applications for its Honda joint-venture engines (constant pressure) combustion and isentropic expansion. beyond the HF120 for the Honda Jet. GE has confirmed that Together these make up the Brayton cycle. it wants the GE Honda brand to its company's brand in this Figure 2 Gas Turbine Cycle Figure 3. Brayton cycle Published By: Retrieval Number: D1483094415/2020©BEIESP Blue Eyes Intelligence Engineering 24 & Sciences Publication International Journal of Recent Technology and Engineering (IJRTE) ISSN: 2277-3878, Volume-4 Issue-4, September 2015 There are three main components of a simple a gas turbine Nozzle engine, namely a compressor, a turbine and a combustion Nozzles lets hot exhaust gases to flow out at very high chamber and a nozzle. velocities producing much of the thrust. Compressor There are various types of gas turbine engines but here A compressor compresses incoming air to high pressure. we will be containing our discussion to aircraft gas The pressure rise is achieved by converting the high turbine (air breathing) engines. Some of them are: kinetic energy of incoming air into pressure energy. Turbojet Turbofan Combustion Chamber Inside a combustion chamber, the fuel mixed with Turboprop oxidizer (air) is burned to produce high- pressure, high- Ramjet velocity gas. Scramjet Turbine Pulseje A turbine extracts the energy from the high-pressure, high- velocity gas, which is flowing through the combustion chamber. 2.3 TURBOFAN ENGINE Figure 4 Turbofan Engine A turbofan engine is an air breathing gas turbine engine that to a lower velocity than a turbojet for a higher propulsive uses a Gas Generator Core, comprising of a compressor, a efficiency.