Loading...

Analysis and Conceptual Design of Cooling System of an Iimproved
SI Engine for Marine Applications

Zamani, Mohammad Amin | 2020

324 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 53431 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Taghipour, Mojtaba; Hosseini, Vahid
  7. Abstract:
  8. Internal combustion engines are first and common powertrains in industry. They have developed eminently. Because of energy crisis there are much attention for their improving and optimizing. The purpose of improving of internal combustion engines performance is increasing the ratio of output brake power to engine fixed size. An improved engine should be tried to work near of the maximum power span, whereas an automobile engine (original engine) works at its middle power. In other hand, if an improved engine and original engine work for a long time, improved engine has critical conditions. In attention to above discussions, improving and reforming of an improved engine cooling system are important. Therefore, the purpose of this project is conceptual design of engine cooling system for improving of its performance condition. At first, similar cooling systems will be studied for understanding the difference and similarity of cooling system between improved marine engine and automobile engine, then all of their merits be educed for redesigning of cooling system. Components and arrangement of cooling system will be determined by benchmark process. Cooling process of improved engine will be simulated by cooling part of GT-Suit software. Because of salinity of seawater , engine block may be damaged by corrosion; therefor closed circuit cycle will be used as cooling system of improved engine block. One heat exchanger (consist of water and sea water) and seawater pump, oil cooler and oil pump will be added to system after simulation by GT-Suit and estimation of heat rejection from engine block. At the end, simulation results compare with experimental results, so that the effective parameters will be optimum. results show that original motor with 300 HP can be improved to 550 HP, after exerting marine changes. At this work point, heat should be dissipated from engine by amount of 283 kW. Engine oil and hot turbocharger air sequentially should be cooled until 79℃ and 40 ℃ by that time
  9. Keywords:
  10. Heat Exchangers ; Simulation ; Internal Combustion Engines ; Cooling System ; GT-Suite Software ; Performance Enhancement ; Improving Power Performance ; Improved Engine

 Digital Object List

 Bookmark

No TOC