GEOgert is the test equipment necessary to conduct the GERT (Geothermal Response Test). The measurement is performed on a probe previously installed and allows to evaluate the thermal conductivity of the soil and the resistivity of the complex piping / mortar filling, both parameters needed for the design of geothermal field and for the evaluation of thermal performance.

The test is recommended for installations over 30 kW. Is an instrument of design, if done before the completion of the field probes, but also a test for testing to verify the quality of cement, to be used at random or in case of doubt on the specific probe. Note the geometry of the probe, the depth of laying and stratigraphy indicative, we are determining the flow and heat injected by adjusting the valve on GEOgert balancing and electrical resistance of the potentiometer.The conditions of energy dissipation in soil determine the jump in temperature between the supply and return: The analysis of the behavior of the temperatures over time derive the apparent thermal conductivity of the soil around the probe and the resistivity of the probe.

The test lasts about 50 hours, during which - through the datalogger and the memory card - are recorded temperature data, flow and electrical power it possible to develop a PC-dissipation curves of the ground by using a spreadsheet Excel.

  GEOgert consists of:

• Electrical resistance varies continuously from 0 to 10 kW in stainless steel tank
• Circulator suitable for electric probes up to over 200 meters profondtà
• Flow control valve
• Temperature probes in delivery, return and environment
• Flowmeter electromagnetic induction conmicroprocessore
• Ammeter-Wattmeter-voltmeter to measure the electrical resistance condizionidi work
• Instrumentation for mechanical ridondantesull'elettronica an instant view of working conditions (flow meters, thermometers, manometers)
• Datalogger for data acquisition, battery powered, with removable memory, a 6-channel, 10,000 readings per channel
• Recording of electrical power, flow, tempera ture input, output temperature room temperature, a channel available: sampling time of 4 minutes or more.
• Electrical power and control
• Containment structure made of aluminum with insulated panels, mounted on wheels

TECHNICAL SHEET:

• type of power: electric three-phase 400 VAC (50 Hz)
• Electrical connection: plug-pin 32A
• absorption maximum: 12 kW
• Hydraulic: type Plasson compression fittings De32
• acquisition channels: 6 (flow rate, flow temperature, return temperature, ambient temperature, power meter, a free channel)
• Memory: 2 sheets each type EPROM 65,280 readings
• sampling time: 4 minutes 10 days
• analog instruments: flow temperature, return temperature, pressure pump, suction, pressure pump, delivery, instantaneous flow of fluid circulation, absorption, electrical resistance, voltage and current
• Dimensions: 140 x 80 x H140

GEOgert The product is compliant and meets the standards in the following DIRECTIVES AND STANDARDS APPLIED TECHNICAL REFERENCE:

DIRETTIVE APPLICATE DIRECT APPLICATION

• Directive 98/37/EC: Machinery Directive
• Directive 2006/95/EC: Low Voltage Directive
• Directive 89/336/EEC: Electromagnetic Compatibility Directive

TECHNICAL REFERENCE STANDARDS

• UNI EN ISO 12100-1: 2005: Safety of machinery. Basic concepts, general principles for design. Part 1: Basic terminology, methodology
• UNI EN ISO 12100-2: 2005: Safety of machinery.Basic concepts, general principles for design. Part 2: Technical principles
• CEI EN 60439-1:2000 / A1: 2005: Safety of machinery. Switchgear and controlgear assemblies for low voltage (Pictures BT). Part 1: subject to standard tests (AS) and equipment partially subject to standard tests (ANS)
• CEI EN 60204-1: 2006: Safety of machinery. Electrical equipment of machines.Part 1: General, for the points concerning the protection against direct and indirect
• UNI EN 982: 1997: Safety of machinery. Safety requirements for systems and components for oil hydraulic and pneumatic transmissions. Hydraulics with respect to the applicable parts
• UNI EN 954-1: 1996 : Safety of machinery.Part of control systems related to security. Part 1: General principles for design