Manual T*SOL basic 5.0 - Valentin Software

13 Appendix User Manual T*SOL
Target temperature
The minimum temperature of domestic hot water If the target temperature in the upper layer of the
tank is not reached, the → auxiliary heating is switched on.
Target value Targ
Temperature T (°C)
The temperature is a material property and describes the ability of a body to generate internal energy
in the form of heat.
Thermal buffer store
Contains heating water for heat storage.
Thermal conductivity λ [W/(mK)]
The thermal conductivity states the amount of heat passing through one square meter of a 1m-thick
layer of building material in an hour when the temperature difference between the two surfaces is 1
Kelvin.
Criterion for assessing the quality of insulating material.
Thermal engineering
Thermal engineering describes all aspects of energy conversion, storage, and transfer in machines
and apparatus with the exception of electrical energy.
Thermal equivalent
Conversion process making energy sources comparable by their heat content (heating value).
Thermosyphon system
Operation in a closed circuit according to the gravity filtration principle without the use of pumps or
controls.
Tilt angle β (°)
(inclination) Describes the angle between the horizontal and the collector surface. This is 0° when
the collectors are flat on the ground and 90° when they are vertical.
VDE
Association for Electrical, Electronic & Information Technologies
Volumetric flow rate Vp Flow [l/h] [l/m²h]
The movement of a volume of a medium in a unit of time through the cross-section of a tube. The
volumetric flow rate for the collector array is stated in l/h and can be specified either absolutely or
relative to the collector area.
Zero-loss collector efficiency η0
States the proportion of radiated energy absorbed by the collector on vertical incidence when the
median temperature of the heat transfer medium in the collector is equal to the ambient air
temperature.
page 101 / 104 Dr. Valentin EnergieSoftware GmbH