Experimental Case Study - Design for Micro-Combined Cooling, Heating and Power Systems - page 357

Fig. 11 Balance of electrical energy production and consumption

supplies the thermal and electrical energy for residential consumption only. During
operation, the whole CCHP system control is based on balancing the electrical
energy production and consumption. Control of this balance consists in appropriate
modulation of the electrical energy obtained from CHP unit, so that, together with
the current PV panel production, to cover the electrical energy current demands.
Contributions to the energy production of the CHP unit and PV panels are shown in
Fig. 11 .
The balance of the thermal energy indicates excess energy in the spring and
autumn seasons (Fig. 12 ).
To eliminate the excess of the thermal production should change the ST panel
surface. In this case, the utilization factor of ST panel could be recalculated using
the relation 64 in Chap. “ Structural Design of the mCCHP-RES System ”

Fig. 12 Heat excess