HOT|COOL NO. 5/2022 "POWER-TO-X & HYDROGEN"

Blue energy system Sankey diagrams

H2 boiler

Useful heat 100

111

NG Inputs 193

171

SMR

62

11

Figure 3. Energy flow diagram for the blue hydrogen scenario

8

11

3

Ambient heat 66

HP

Heat 92

26

Useful heat 100

Power Waste

DH network

101

HIU

NG Inputs 76

67

CHP

heat

3

5 1

21

Figure 4. Energy flow diagram for the blue D.H. scenario

11

1

Global warming potential of blue energy systems

Table 1. GWP of 100 units of useful heat from different heat supply systems

7

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