System Design and Optimisation Study on a Novel CCHP System Integrated with a Hybrid Energy Storage System and an ORC

Table 6

Optimisation results summary table.

Scenarios	Scenario 1	Scenario 2	Scenario 3	Scenario 4	Scenario 5	Scenario 6
Electrical energy demand (kWh)	58.92	93.47	72.21	49.49	113.14	40.461
Heat demand (kWh)	14.44	0	16.35	101.22	43	173.77
Cooling demand (kWh)	123.42	55.46	87.13	27.56	0	0
Electrical energy generated by the engine (kWh)	68.87	52	61.49	62.4	58.73	74.95
Energy supplied by electrical energy storage (kWh)	20.04	24.3	37.48	27.04	46.8	12.61
Energy supplied by the heating storage unit (kwh)	38.52	10.6	0.99	47.31	9.46	0
Energy supplied by the ORC system (kWh)	4.48	3.37	4	4.06	3.56	4.88
System capacity enhancement (%)	63	47.01	64.61	55.10	41.50	64.15
Engine operation time (h)	10.55	8	9.46	9.6	8.41	11.53
Energy consumption amount (kWh)	196.79	148.93	175.7	178.28	156.13	214.23
Overall efficiency (%)	33.49	36.13	34.92	49.51	43.7	56.53
Efficiency enhancement (%)	3	3.18	2.85	17.11	8.98	22.35