Conservation of Heat Energy Principals
By microzeta
@microzeta (245)
United States
February 7, 2007 11:01pm CST
My ECS (Environmental Control Systems- a course teaching HVAC, ventilation, lighting, etc. in architecture) professor insists that there are two laws of heat energy conservation, that:
1. Heat may neither be created nor destroyed
2. Heat only moves in one direction, Hot to Cold.
I disagree with both of them, and can sort of formulate an argument against both, but if you're a physics expert, could you please ring in some help?
1 response
@shalwani (760)
• Pakistan
9 Feb 07
Conservation of energy states that the total amount of energy in an isolated system remains constant, although it may change forms (for instance, friction turns kinetic energy into thermal energy). In thermodynamics, the first law of thermodynamics is a statement of the conservation of energy for thermodynamic systems.
Put simply, The law of conservation of energy states that energy can not be created (made from nothing), or destroyed (made to disappear to no-where) and that energy can be changed from one form to another (such as electrical energy in to heat energy).
The energy conservation law is a mathematical consequence of the shift symmetry of time; energy conservation is implied by the empirical fact that physical laws remain the same over time
