Structural Design of the mCCHP-RES System - Design for Micro-Combined Cooling, Heating and Power Systems - page 223

e_load e_sys Poly. (e_load) Poly. (e_sys)

6,00

5,00

4,00

3,00

2,00

1,00

0,00

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Month

Fig. 39 Excess electricity production (TCC)

q_load q_sys Poly. (q_load) Poly. (q_sys)

20,00

18,00

16,00

14,00

12,00

10,00

8,00

6,00

4,00

2,00

0,00

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Month

Fig. 40 Excess heat production (TCC)

Increasing the performance indicators of the system is achieved by analyzing the
speci

c energy production of the system components and through actions to reduce
losses, but especially to reduce the excess energy produced.
To find the concrete actions that could lead to performance improving, two cases

will be considered, namely case of the structural model type off-grid and case of the
structural model type on-grid.

7.3.1 Structural Model Type off-Grid with Thermal Compression
Chiller

The off-grid system ensures the energy only for own residential consumption in the
two main forms, electrical and thermal. The CHP unit is governed by the power