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2. Heat pump and refrigeration cycle - Wikipedia

   en.wikipedia.org/wiki/Heat_pump_and...

   Thermodynamic heat pump cycles or refrigeration cycles are the conceptual and mathematical models for heat pump, air conditioning and refrigeration systems. [1] A heat pump is a mechanical system that transmits heat from one location (the "source") at a certain temperature to another location (the "sink" or "heat sink") at a higher temperature. [2]

3. Temperature–entropy diagram - Wikipedia

   en.wikipedia.org/wiki/Temperature–entropy_diagram

   For reversible (ideal) processes, the area under the T–s curve of a process is the heat transferred to the system during that process. [1] Working fluids are often categorized on the basis of the shape of their T–s diagram. An isentropic process is depicted as a vertical line on a T–s diagram, whereas an isothermal process is a horizontal ...

4. Mechanical systems drawing - Wikipedia

   en.wikipedia.org/wiki/Mechanical_systems_drawing

   The schematic is a line diagram, not necessarily to scale, that describes interconnection of components in a system. The main features of a schematic drawing show: A two dimensional layout with divisions that show distribution of the system between building levels, or an isometric-style layout that shows distribution of systems across ...

5. Schematic - Wikipedia

   en.wikipedia.org/wiki/Schematic

   A schematic, or schematic diagram, is a designed representation of the elements of a system using abstract, graphic symbols rather than realistic pictures. A schematic usually omits all details that are not relevant to the key information the schematic is intended to convey, and may include oversimplified elements in order to make this essential meaning easier to grasp, as well as additional ...

6. Heat pump - Wikipedia

   en.wikipedia.org/wiki/Heat_pump

   This historic heat pump heated the town hall for 63 years until 2001. Only then was it replaced by a new, more efficient heat pump. [14] 1945 John Sumner, City Electrical Engineer for Norwich, installs an experimental water-source heat pump fed central heating system, using a nearby river to heat new Council administrative buildings. It had a ...

7. Thermodynamic cycle - Wikipedia

   en.wikipedia.org/wiki/Thermodynamic_cycle

   Thermodynamic heat pump cycles are the models for household heat pumps and refrigerators. There is no difference between the two except the purpose of the refrigerator is to cool a very small space while the household heat pump is intended to warm or cool a house. Both work by moving heat from a cold space to a warm space.