SENIOR DESIGN PROJECTDEPARTMENT OF MECHANICAL ENGINEERING

FLORIDA INTERNATIONAL UNIVERSITY

A NEW HEAT ENGINE AND ITS APPLICATIONS IN RENEWABLE

ENERGY

Bruno BarbosaHector CintronGlenn Drzewicki

Advisor: Professor Yiding Cao

Problem Statement The main objectives is to design a new type of

heat engine based from the current structure of an internal combustion.

Various components for the new heat engine will be designed:

valves for the heating chamber heating chamber shape and size compact heating elements various parts for timing management of

the engine. The new heat engine will be tested for

performance, in terms of power output and thermal efficiency.

Metrics

Power output : 8- 15 kW (10 – 20 hp)

Thermal Efficiency: 30-40%

Compression Ratio: 6:1The compression ratio will be decreased from 9.4:1 into the desired range of 5:1 to 6:1

Initial Design Concept

Proposed Design

The production of the final heat engine will be on the foundation of a Wankel rotary engine.

A Wankel rotary engine works on the same mechanical four stroke operation as a conventional piston engine.

Work Cycle of Heat Engine

Valve System

Heating Chamber- Initial Concept

• Initial Concept included small vortex generator to tumble airflow

• Heating chamber resembled a pipeline

• 2 heating chambers per rotor housing

• 2 pathways for valve shaft

Heat Chamber: Working Concept

Chamber requirements:

• Mount to engine block

• Withstand high pressure & temperature

• Multi piece for maintenance

• Tumble / swirl airflow

Heat Chamber: Working Concept

Project and Division Tasks Bruno Barbosa:

1. Report Development2. Piping, tubing, valves, etc. for system configuration3. Heat exchanger & heating chamber design and analysis

Hector Cintron:1. Report Development2. Heat exchanger & heating chamber design and analysis3. Valve design

Glenn Drzewicki:1. Report Development2. Fabrication/ manufacturing of engine components3. Gear/ valve timing management & design

Conclusion

The main goal of this project includes creating a heat engine with no Carbon Dioxide emissions and to show its application in renewable energy

The next IAB presentation in April will include: Analytical Analysis and Structural Design Major Components Structural Design Cost Analysis Prototype System Description Tests Results of Prototype

References

1. Cao, Yiding. “A New Heat Engine and its Applications in Renewable Energy,” Journal of Applied Energy, Department of Mechanical and Materials Engineering, Florida International University, Miami.

2. Wallis, Tony. “The Bishop Rotary Valve,” Bishop Innovation, Motorsports Technology, Magazine of FISITA.