Concrete Temperatures During Fire

Elin Jensen and Jacob Van Horn
SFPE’s Engineering Technology Conference
October 19-20, 2009



Motivation


Advance performance-based analysis and design of structures throughout the entire fire.
Mechanistic based analysis and design method established

Advance performance based design for structural fire safety

assess the probability of failure in the event of fire.

quantify (and reduce) variability and arbitrariness in perf ....etc

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The Free Piston Engine is a combination of reciprocating engine and rotary turbine. It is called free piston engine because the freedom motion for Mechanical linkage which gives variable stroke according to load.

ADVANTAGES

1. Mechanical simplicity
2. Less power to weight ratio
3. Lower turbine operating tempeatures
4. Multi fuel capability
5. Flexibility and reliability
6. Easy starting and control
LIMITATIONS
1. Poor fuel economic
2. Less stability
3. Poor part load efficiency
4. High combustine rates
5. Reduction gearing

....etc

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Author / Author: Anthony Deku, Subramanya Kompella Anthony Deku, Subramanya Kompella


Abstract:
The problem of possible pitting and cavitation in internal combustion engines is
receiving Considerable attention. Both theoretical and simulation simulation studies
are carried out in order to understand the noise and vibration sources, using a force
equation. Both theoretical simulation and simulation studies are carried out in order to
understand the noise and vibration sources, using a force equation.For this work ....etc

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Introduction

From the day machines with reciprocating piston has come into existence efforts have been undertaken to improve the efficiency of the machines .The main drawbacks of reciprocating machines are the considerably large number of moving parts due to the presence of valves , greater inertial loads which reduces dynamic balance and leakage and friction due to the presence of piston rings . The invention urges has reached on Rotary machines .

One main advantage to be gained with a rotary machine is reduction of inertial loads and ....etc

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A patented new power machine concept has been designed and analyzed for production, and proof of principle subscale tests have been performed, with positive results. The machine design concept is applicable as a compressor, pump, motor, or engine. Simplicity of design based on spherical ball pistons enables a low moving part count, high power to weight ratio, elimination of valve train and water cooling systems, and perfect dynamic balance.The new design concept utilizes novel kinematic design to completely eliminate inertial loads that would c ....etc

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Abstract:
new power machine concept has been designed and analyzed for production, and proof of principle subscale tests have been performed, with positive results. The machine design concept is applicable as a compressor, pump, motor, or engine. Simplicity of design based on spherical ball pistons enables a low moving part count, high power to weight ratio, elimination of valve train and water cooling systems, and perfect dynamic balance.

The new design concept utilizes novel kinematic design to completely eliminate inertial loads that w ....etc

[:=Read Full Message Here=:]

From the day machines with reciprocating piston has come into existence efforts have been undertaken to improve the efficiency of the machines .The main drawbacks of reciprocating machines are the considerably large number of moving parts due to the presence of valves , greater inertial loads which reduces dynamic balance and leakage and friction due to the presence of piston rings . The invention urges has reached on Rotary machines.




One main advantage to be gained with a rotary machine is reduction of inertial loads and better dy ....etc

[:=Read Full Message Here=:]

Free Piston Engine



The Free Piston Engine is a combination of reciprocating engine and rotary turbine. It is called free piston engine because the freedom motion for Mechanical linkage which gives variable stroke according to load.

ADVANTAGES

1. Mechanical simplicity
2. Less power to weight ratio
3. Lower turbine operating tempeatures
4. Multi fuel capability
5. Flexibility and reliability
6. Easy starting and control
LIMITATIONS
1. Poor fuel economic
2. Less stability
3. Poor part load efficiency
4. High combustine rates ....etc

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Abstract:
JACK SYSTEM WITH AUTOMATIC LOCKING OF THE PISTON provides a jack system provided with a cylinder provided with stop means. It also comprises: a body hinged about an end of the piston, the body comprising stop means and being able to occupy a first angular position authorising the extraction of the piston, as well as a second angular position uniquely allowed when the piston occupies a position such that the means are located beyond the means in an extraction position the body occupying the second position providing the facing o ....etc

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Ball Piston machines


From the day machines with reciprocating piston has come into existence efforts have been undertaken to improve the efficiency of the machines .The main drawbacks of reciprocating machines are the considerably large number of moving parts due to the presence of valves , greater inertial loads which reduces dynamic balance and leakage and friction due to the presence of piston rings . The invention urges has reached on Rotary machines .

One main advantage to be gained with a rotary machine is reduction of inertial lo ....etc

[:=Read Full Message Here=:]