You are an engineer in a company that manufactures and designs several mechanical devices, and your manager asked you to help your customers. In this time, you have two customers, one of them wants to ask about internal combustion engines while the other requires a heat exchanger with particular specifications. Follow the parts in the following tasks to do your job and support your customers. Task 1: Your first customer asked for an internal combustion engine to use it in a designed car. Your role is to describe the operation sequence of different types of available engines, explain their mechanical efficiency, and deliver a detailed technical report which includes the following steps: STEP 1 Describe with the aid of diagrams the operational sequence of four stroke spark ignition and four stroke compression ignition engines. STEP 2 Explain and compare the mechanical efficiency of two and four-stroke engines.
You are an engineer in a company that manufactures and designs several
Task 1:
Your first customer asked for an internal combustion engine to use it in a designed car. Your role is to describe the operation sequence of different types of available engines, explain their mechanical efficiency, and deliver a detailed technical report which includes the following steps:
STEP 1
Describe with the aid of diagrams the operational sequence of four stroke spark ignition and four stroke compression ignition engines.
STEP 2
Explain and compare the mechanical efficiency of two and four-stroke engines.
STEP 3
Review the efficiency of ideal heat engines operating on the Otto and Diesel cycles by explaining and generating plot(s) for thermal efficiency, ? vs compression ratio and cut-off ratio.
STEP 4
Evaluate the performance of a four-stroke, eight cylinder ideal Diesel cycle with a cylinder bore of 10 cm and a piston stroke of 12 cm when it is operated at 2200 rpm and
4
the air temperature at the beginning of compression prosses is 40 °C if the minimum volume enclosed in the cylinder is 5 percent of the maximum cylinder volume and the cut-off ratio is 1.7 by determining the delivered power from the engine and it’s efficiency and comparing your answer if the engine is changed to be two stroke engine.
Step by step
Solved in 2 steps with 2 images
