gshp pumping impacts open loops vs closed loops. gshp pumping analysis used seem to generate loads...
TRANSCRIPT
GSHP Pumping Impacts
Open Loops vs Closed Loops
GSHP Pumping analysis
• Used SEEM to generate loads and hours of operation
• Five climates run but COP and EER impacts similar
• Energy impacts are a function of individual home loads and climates
Heating Impacts
GSHP COP Impacts
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
1 2 3 4 5 6 7 8 9 10 11
Pumping optionsC
OP
1 Closed Loop Horizontal 4 Pipe
2 Closed Loop Horizontal Slinky
3 Closed Loop Slim Jim Plate HX
4 Closed Loop Lake/River Coils HX
5 Closed Loop Vertical U-Bend 150' Bore
6 Closed Loop Vertical U-Bend 300' Bore
7 Closed Loop Vertical U-Bend 450' Bore
8 Open Lake or River (2 Pipe)
9 Open Well Shallow Groundwater (50 ft)
10 Open Avg Groundwater (150 ft)
11 Open Deep Groundwater (300 ft)
Cooling Impacts
Cooling EER impacts
0.00
5.00
10.00
15.00
20.00
25.00
1 2 3 4 5 6 7 8 9 10 11
GSHP Cooling Configuration
EE
R
1 Closed Loop Horizontal 4 Pipe
2 Closed Loop Horizontal Slinky
3 Closed Loop Slim Jim Plate HX
4 Closed Loop Lake/River Coils HX
5 Closed Loop Vertical U-Bend 150' Bore
6 Closed Loop Vertical U-Bend 300' Bore
7 Closed Loop Vertical U-Bend 450' Bore
8 Open Lake or River (2 Pipe)
9 Open Well Shallow Groundwater (50 ft)
10 Open Avg Groundwater (150 ft)
11 Open Deep Groundwater (300 ft)
Results
• Open loop pumping of ground water can result in improved performance
• Deep well open loops result in significant COP,EER reduction.
• Shallow closed loops can have an equally big effect on performance.