Manual T*SOL basic 5.0 - Valentin Software

13 Appendix User Manual T*SOL
District heating DistHeat
Heat supply for heating buildings and drinking water. In district heating, waste heat created during
power generation (cogeneration) is used, among others. Transfer of heat is predominantly effected
via underground piping.
DKE DKE
German Commission for Electrical, Electronic & Information Technologies of DIN and VDE.
Organization in Germany responsible for creating standards and safety regulations in the field of
electrical engineering, electronics, and information technology.
Domestic hot water WW
Domestic hot water typically refers to warm drinking water and in contrast to heating or buffer tank
water can be consumed.
Effective surface AN
Reference value for confirmation in accordance with the Energy Saving Ordinance (EnEV), derived
from the gross volume of the building. All area-based values are based on AN.
As a general rule, the living space is generally smaller than the floor space.
Efficiency Eff
The → collector loop efficiency and the → system efficiency are calculated.
Electric heating element el HE
Electrical auxiliary heating in the storage tank
Electrical power Pel [W, kW]
The electrical power states how much electrical energy is used in a specific unit of time.
Elevation angle
-> sun height
Energy E (Joule)
Energy is the ability to perform work. The forms of energy are divided into mechanical energy (kinetic
and potential energy), thermal, electrical and chemical energy, radiation energy, and nuclear energy.
Energy balance
Comparison of incoming and outgoing energy flows in a system: the sum of energy supplied, energy
released, and the storage of energy by the heat capacity of the system components must be equal to
zero. Balancing is not carried out wholesale for the entire system but for the individual system
components.
Energy balance scheme
→ Sankey graph
Energy input E, Qzu [Wh, kWh]
Energy supplied to a component, e.g. irradiation, heat supply at the heat exchanger or heat transfer
by mass flow due to consumption or circulation.
Energy output Qab [Wh, kWh]
Energy (heat) transferred from one component (collector loop, storage tank etc.) to another
component or the environment.
Energy produced by solar system Qab [Wh, kWh]
Comprises the energy transferred to the standby tank from the solar tank due to consumption and
any existing return circulation control in the solar tank.
page 93 / 104 Dr. Valentin EnergieSoftware GmbH