11. Radiant cooling systems are usually hydronic, cooling using circulating water running in pipes in thermal contact with the surface. 12. Thermal equilibrium is achieved when two systems in thermal contact with each other cease to have a net exchange of energy. 13. The sample with the dummy gauge is placed in thermal contact with the test specimen, adjacent to the active gauge. 14. The sensing elements are in close proximity and in good mutual thermal contact , to avoid differential signals caused by temperature differences. 15. Thermal contact with the heat sink is then broken so that the system is insulated, and the magnetic field is switched off.16. He considers two systems in thermal contact , one a thermometer, the other a system in which several irreversible processes are occurring. 17. In most cases " T " is the temperature of the surroundings with which the system is in good thermal contact . 18. A bit of liquid for thermal contact is useful, but a tablespoon of oil in a frying pan is more than sufficient. 19. So there's one mol of Cu at 0 C, and one mol of Cu at 100 C, in thermal contact . 20. The heat sink's contact surface ( the base ) must be flat and smooth to ensure the best thermal contact with the object needing cooling.
