Research on calculation method of thermal design load in radiant heating and coolind systems

A new calculation method is proposed for designing space radiant heating/cooling systems by improving conventional methods of steady and unsteady heat transfer calculation theory which has usually been used for designing of buried pipe floor heating systems. On the new method to calculate room thermal load in radiant heating/cooling system, an operative temperature surrounding occupants are used as system control parameter instead of a space air temperature. Theoretical algorithms and calculation examples are described.