kraftwerk - Mephisto BHKW G50

G50

BiogasAsynchronous

Maximum output in minimum space.

Technical data

Mephisto G50

TypeMephisto G50 A BGGeneratorSynchronousgeneratorFuelBiogas

Net output (adjustable)

Electric, net20 to 50 kWElectric, gross50,6 kWThermal65 to 101,0 kWGas82,1 to 144,5 kWHi

Net efficiency Electric

Electric, effective34,6 %Electric, ISO 304636,3 %Thermal, effective69,9 (tReturn = 35 °C)Overall, effective104,5 % (tReturn = 35 °C)

General

FuelBiogas or Klärgas

Gas connection

Gas connection rating144,5 kWHi = 160,4 kWHSGasanschlussdruck20 - 100 mbarGas flow pressure≥ 10 mbarMating dimensionDN 32 (1 1/4“ male thread)

Heating connection

Heating circuit minimum pressure1,5 barPermitted operating pressuremax. 6,0 barFlow temperaturemax. 90 °CReturn temperaturemax. 70 °CMating dimension1 1/2“ male threadDesign flow rate4,43 m³/hResidual head for net output6,0 mWSWith 40 K spreadDesign flow rate: 2,21 m³/h
Residual head for net output: 10,3 mWS

Electrical connection

  • Pre-fuse NH00 100 A gL (gG) or SLS E-100 A
  • Supply line H07RN-F 5 x 35 mm² to 50 m in length for installation types B to G, 35 mm² für alle Verlegearten

Plate heat exchanger

Soldered stainless steel compact heat exchanger for separating the heating system from the CHP engine water circuit

Pollutant emissions

Mephisto G50B unterschreitet die Emissionsgrenzwerte der TA-Luft.

Combustion intake air

Space-air-dependent operating mode

Flue gas connection

  • Abgasleitung D110, Kunststoffrohr der Brandklasse B1 aus PPs, zugelassen als Abgasleitung für Brennwert-Wärmeerzeuger to 120 °C Abgastemperatur
  • Abgastemperatur thermostatisch auf max. 100 °C begrenzt
  • Sicherheitstemperaturbegrenzer auf 120 °C eingestellt
  • empfohlener Abgasgegendruck; 500 Pa, maximaler Abgasgegendruck 800 Pa
  • Abgasvolumenstrom: 161 m³ (i.N.)/h entspricht 208 m³/h bei TAbgas = 80 °C
  • maximal anfallende Kondensatmenge: 22 l/h

Flue gas heat exchanger

  • Thermodynamically optimised cast aluminium-silicon heat exchanger
  • Integrated catalytic converter

Utilisation of calorific value

  • The flue gas temperature is a maximum of 15 K above the corresponding return temperature
  • Calorific value used at a return temperature of about 55 °C and above

Motor

  • Mamotec industrial gas engine
  • Model: MAG 49.4 S 315
  • 4-cylinder Otto engine, water-cooled
  • Displacement: 4.900 cm³

Coupling

Maintenance-free, plug-in, flexible metal/plastic coupling to compensate for radial, axial and angular misalignment.

Generator

  • Four-pole asynchronous machine for parallel operation on the public grid
  • Manufacturer: Weier GmbH
  • Model: DASGM 250/4 L water-cooled
  • 3 × 400 V, 50 Hz
  • Anlaufstrom: 52 A (FU serienmäßig)
  • Rated current: 94 A
  • cos φ: 0,86 (inductive)
  • Rated power: 56 kW
  • Rated speed: 1.514 min-1

Low voltage certification

Low voltage certification with unit certificate as per application guide VDE-AR-N 4105:2

Compensation

Due to the requirements in German code of practice VDE-AR-N 4105:2018-11, operating own generating systems without reactive power compensation is only permitted in exceptional cases. A cos φ of 0.95 is achieved with the standard fixed compensation.

Feed-in management as per §14 EEG 2021

Reduction in feed-in power (0-10 V) possible by preselecting target value via analogue input, bus interface (optional) and digital inputs (to connect relay contacts on a ripple control receiver provided by customer).

Controller

  • Industrial computer with powerful MPC555 microcontroller, 32-bit power PC with FPU
  • Fully automatic operating control
  • Remote monitoring/operation via LAN or optional mobile data connection
  • Schnittstellen zu übergeordneten DDC-Steuerungen: digitale und analoge Ein- und Ausgänge; optionale Kommunikations-Schnittstellen CAN-Bus, RK512, Modbus, LON-Bus, Profibus-DP, BACnet/IP, IEC 104, Profinet

Housing

  • Sturdy, easily removable, frameless full thermoacoustic enclosure
  • Machine unit on four Asonator steel springs

Noise emissions

  • Mean sound pressure level at 1 m distance ≤ 60,0 dB (A) as per DIN 45635-11
  • Mean sound pressure level (standard equipment) at 1 m distance (45°) to chimney outlet ≤ 51,2 dB (A) as per DIN 45635-11

Third octave band spectra isolation can be provided on request

Dimensions

L × W × H in mm: 2.235 × 1.020 × 1.930 mit Schaltschrank.

Required space

L × W × H in mm: 4.000 × 2.000 × 2.100

Installation and base plans will be provided on request

Operating weight

1.850 kg

Delivery

  • Machine unit, self-supporting: 1.640 mm × 785 mm, 1.240 kg
  • Panelling with accessories on pallet: 2.000 mm x 1.200 mm, 590 kg

Product range

You will find all technical specifications for the supplied heat pumps and for our Mephisto combined heat and power units and the Direktor controller in the product range.

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Accessories & equipment features

In addition to the standard scope of supply, we also offer a wide range of accessories to adapt the Mephisto CHP unit to your individual needs. Here you will find an overview of standard equipment and added options.

More information

Contact

Do you have any questions about the heat pumps we offer or would you like to submit a request for project planning? Send us a message.

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