Functional Design of the mCCHP-RES System - Design for Micro-Combined Cooling, Heating and Power Systems - page 239

Photovoltaic
panels

Electricity

Battery

Hot
water

CHP
Unit

Chiller Cold

P6

P8

P9

P1

P4

Cold
water

P7

Solar thermal
panels

Heat

P2 P5

P10

Boiler

P3

Heat
exchanger

Heat
storage

Cold
storage

Production Cooling Consumptions

Fig. 2 Global functional scheme of a mCCHP system with a mechanical compression chiller

For the structural models with mechanically activated chiller was built the global
functional scheme presented in Fig. 2 .
The functional schemes of the system will be obtained by customizing the two
global functional schemes.

2.2 Sizing of the System Components

For the functional schemes of the system to become functional models, all the
components, both the main and the complementary ones, should be dimensioned
and chosen from those available on the market. Sizing of the system components
starts from the following observations.
In structural design, both the consumers

consumption and the suppliers load
were evaluated at the level of each month only. Evaluation result is that the con-
sumers

'

was found, i.e., the amount of energy that each
consumer consumes every month of the year. Also, it was found the suppliers
monthly load, i.e., the amount of energy that each supplier must give to each month
of the year so that, along with others, always cover this variable consumption.
In functional design one take into consideration that although at the level of each
month, the daily residence consumption and system load are equal, though in

“ monthly consumption ”