Pôle ENR/ESE

REMBO

Renewable Energy Monitoring Box W. Keilholz, V. Partenay, P. Riederer

CSTB Sophia Antipolis

PERFORMANCE ANALYSIS

Where are the system borders?

Performances measurement (example of a simple geothermal heat pump)

Definition from the SEPEMO project

ECS

Plancher

chauffant

Sonde

géothermique

PAC

Pompe

chauffage

Appoint

électrique

SPF4SPF3

SPF2 SPF1

Pompe

géothermique

PERFORMANCE ANALYSIS

What to measure and where?

Plancher chauffant

Sonde

géothermique

Schéma Type 1

T3T1

Q

T2Ibât2

Is

QT2

T1T3

Cel-aux,s

Cel-PAC

Cel-aux,bât2

Text

Tamb

Performances measurement (example of a simple geothermal heat pump)

Definition from the SEPEMO project

Renewable Energy Monotoring Box – REMBO

Measurement concept

Example of the monitoring of a geothermal heat pump

Measurement architecture

• State measurements (temperatures, pressure, humidity etc.)

• Energy measurements (heating and cooling, electricity)

• Flow measurements (water, gaz, fuel etc.)

• Data acquisition by Modbus or wireless networks directly or

using analogue digital converters

Layout of monitoring and supervision system

Monitoring PC connected to Ethernet / ADSL

Comparison of measured performances

between Monitoring kit and laboratory test bench

Integrated performance factor (PF)

TEST: Cyclic operation of HP

Temperature difference supply-return

Website for the supervision and analysis

First level

Quality assurance

System typologies with sensor identification

Website Valpac-Online

« Performance tool »

Website Valpac-Online

« Project level »

First monitoring results

Example 1

Oversized system

Pump on the building side

is operating continuously

Low efficient pumps

First monitoring results

Example 2

Oversized system

Pump on the building side

is operating continuously

Efficient pumps

First monitoring results

Example 3

Extremely oversized system

Pumps are operating continuously

Example 1

Tcond : 31 °C

Tevap : 7 °C

SPF1 : 5.3

Example 2

Tcond : 35 °C

Tevap : 5 °C

SPF1 4.5

First monitoring results

Impact of system temperatures