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Is it possible for exergy to be negative For exergy change to be negative For exergy destruction to be negative?
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Can joules ever be negative?
Yes. A rock falling from a height has negative joules. When a displacement is in the same direction as the force the work is negative and represents exergy, energy out.I notice that the "exergy" is in red indicating it is not a word recognized by the system.This is a fundamental question in physics. Energy is energy into a system and is positive, exergy is energy coming out of the system and is negative. Exergy is like explosion and energy is like implosion. Exercise is energy coming out of the body system.
How do you explain that gravity that pulls things to the center of an object?
Exergy and Energy. When the sign of potential energy is negative this is called exergy and indicates that energy comes out, thus exergy. This is the case when opposite charges are involved, the potential energy is negative and this configuration emits energy. When the charges are the same the sign is positive and energy is absorbed in this configuration.Newton discovered that gravity is exergy, emits energy as the masses attract each other. Taking the center at one of the masses, this accounts for the center seeking behavior of gravity.
What are some cool engineering words that start with the letter E?
exergy http://en.wikipedia.org/wiki/Exergy
What do you mean by positive and negative work?
Positive work is input energy, w= -f.d - |fd|cos(fd) , when this is positive energy is put into the system, in this case the force is in the opposite direction of the displacement. Negative work is output energy properly called exergy, w = -f.d, in this case the force is in the direction of the displacement, for example, dropping a ball is exergy, the displacement is in the direction of the force of gravity. This is exergy, work is taken out of the system as opposed to lifting the ball which required putting work into the system. Maxwell had a problem with quaternions because physicists defined positive work as dropping the ball, and the rules of quaternions said dropping the ball is a negative sign and thus exergy, work out, not work in. Around the 1900 this was a major conflict and the physicist won and decided to change the sign on vectors squared , I2 = -1 to +1, so dropping the ball would be positive energy. This is incorrect physics and incorrect mathematics. The sign of the scalar work is negative for work out and positive for work in. This is seen in opposites attract, you get work out and the sign is negative. For like charges the sign is positive and you have to put work in.
What does Exergy LLC manufacture?
The company Exergy LLC manufactures heat exchangers. Heat exchangers are items such as parts for boilers, engines and furnaces. Some of their products are used by Shell.
How energy differ from work energy?
Energy denotes work in (en-ergy). Work can be energy or exergy ( work out).
What occurs when force is applied over a certain distance and motion is in the same direction as the force?
There is exergy. Energy is given out by the motion.
What is exergy analysis?
it is the enrgy transformation analysis to compute the net energy gained and the amount of losses during the transformation in a process.
How much work is done by the gravitational force when a 256 kg pile driver falls 2.80m?
work is not by the force . work is done by the body against or for the force. since work is force x displacement it will be 265x2.40 =636 N .and since work is done for the gravity work done will be -ve so it will be -636 N .
Is work the transfer of energy?
No, work is change in kinetic energy. Answer2: Work IS energy. Energy is input work and exergy is output work.
What has the author Jan Szargut written?
Jan Szargut has written: 'Exergy Method' 'Gospodarka cieplna' -- subject(s): Heat engineering
What has the author M V Sussman written?
M. V. Sussman has written: 'Availability (exergy) analysis' -- subject(s): Enthalpy, Entropy, Mechanical engineering, Thermodynamics
