Manual T*SOL basic 5.0 - Valentin Software

13 Appendix User Manual T*SOL
Calculation of pollutants
The solar system's CO2 emissions savings are calculated. This is based on the emissions factors of
the fossil fuel under consideration for heat generation. The emissions factors used here depend on
the (saved) fuel. (→ fuel savings) → CO2 emissions
Capital value V0
Sum of all → cash values of investments, subsidies, savings, operating costs, and loan costs (each
signed). The interest rate used is equal to that which would apply when borrowing capital for the
investment from a bank or at which the capital used could yield interest.
Cash value [€]
Discounted future payments at the start of the period under consideration. A cash value is positive if
it can be recorded as revenue and negative if the amounts represent costs. Items calculated are
investments, subsidies, savings, and operating costs. → capital value
Circulation Circ
Circulation can be used for hot water preparation. This increases comfort (hot water is immediately
available, even with long piping systems), but is also coupled with losses.
Clearness Index, Kt
Kt = G/G0 , using global irradiation G and extraterrestrian irradiation G0
Climate C
Climate is the current atmospheric conditions or a sequence of atmospheric conditions at a specific
place which run their course over a specific period of time.
Climate data
The climate data supplied with the program (for numerous locations) contains hourly median values
for global radiation, outdoor temperature, and wind speed.
CO2 emissions [g, kg]
(Carbon dioxide) is the quantitively most significant greenhouse gas (GHG) released by human
activity (in particular combustion of fossil fuels). → Calculation of pollutants
Collector Coll
Technical device for converting radiation energy into heat energy. Common types are flat plate and
evacuated tube collectors.
Collector array CA
The collector array consists of the collectors and the piping.
Collector loop CL
Circuit containing the → collector or the → absorber and which is responsible for transporting heat
from the collectors to the storage tank or heat transfer medium.
Collector loop connection
The collector loop connection represents the connection between the → collector array and the
storage tank by flow and return.
Collector loop efficiency
Quotient of the energy emitted from the collector loop and the energy irradiated onto the collector
area (active solar surface)
Compound parabolic concentrator CPC
Compound parabolic concentrator, reflectors used in evacuated-tube collectors for enlargement of
the → aperture area in a geometrically optimized form as a parabolic trough.
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