Index I indicates the i:th customer of n related to a node.
Summing of energy period 1:
Summing of energy period 2:
Summing of nominal power:
Summing of area/volume:
Summing of nominal flow:
Summing of water consumption period 1:
Summing of water consumption period 2:
Summing of cooling:
Summing of return temperature:
Summing of equivalent bypass: