Piston engines and thermodynamics

Devices and equipment


The piston engines and thermodynamics laboratories are designed to provide practical instruction in fundamental engineering concepts in the field of energy and heat conversion. They enable theoretical relationships to be clearly understood through experimental investigations. In particular, energy conversion processes can be demonstrated and analysed under real-world conditions. Furthermore, the laboratories offer the opportunity to conduct investigations into heat transfer processes and systematically record the factors influencing them. In this way, they make a significant contribution to the understanding of thermodynamic processes and to the safe handling of piston-engine-based systems in both research and teaching.

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Ochsner GMWW10

  • groundwater heat pump for heating buildings
  • designed as a water-to-water heat pump
  • operates with R 407C refrigerant
  • temperature rise 25 K – 40 K – 50 K
  • heating capacity 8.5 kW – 8.0 kW – 7.5 kW
  • coefficient of performance 5.7 – 3.8 – 2.9

MSG Air Conditioning System

  • installation: MSG Stralsund
  • air flow of up to 1300 m³/h
  • supply air temperature range of 8–50 °C
  • relative humidity of the supply air: max. 100% (at 30 °C)

SPHEROS Thermo S230

  • diesel-fuelled auxiliary heating system
  • auxiliary heater for use in coaches
  • nominal heating output of 15–40 kW
  • currently operating at a heating output of 23 kW

KAESER KCT401-G

  • oil-free, single-stage, air-cooled piston compressor
  • cylinder configuration: 2 cylinders, 90° V-configuration
  • speed of 1450 min⁻¹
  • air flow rate of 14.94 m³/h (at 8 bar(a))
  • back pressure: max. 10 bar(a)
  • coupling power: 2.4 kW
  • cylinder bore: 65 mm

AEL Heat Exchanger

  • type W3AY1708F070065X11 vertical shell-and-tube heat exchanger
  • configuration: 1 outer and 2 inner passes, cast shell
  • inner jacket diameter of 159 mm
  • outer tube diameter: 12 mm
  • tube length: 800 mm
  • number of tubes: 49, copper
     

HATZ 1D90Z

  • air-cooled industrial four-stroke diesel engine
  • combustion system: direct injection
  • number of cylinders: 1
  • rated power of 11.2 kW at 3000 min⁻¹
  • torque of 40.7 Nm at 1500 min⁻¹
  • bore / stroke: 104 mm / 85 mm
  • displacement: 722 cm³
  • compression ratio of 20.5:1
  • average piston speed of 8.5 m/s at 3000 min⁻¹

Briggs & Stratton IntekPro206

  • air-cooled industrial four-stroke petrol engine
  • fuel mixture formation: electronic carburettor
  • number of cylinders: 1
  • rated power: 4 kW at 3000 min⁻¹ / 4.6 kW at 3600 min⁻¹
  • bore / stroke: 68 mm / 55 mm
  • displacement of 206 cm³
  • compression ratio of 8:1
  • average piston speed of 5.5 m/s at 3000 min⁻¹ / 6.6 m/s at 3600 min⁻¹

WTZ FM16/24 ‘Norbert’

  • single-cylinder research engine
  • water-cooled four-stroke diesel engine
  • combustion system: direct injection
  • number of cylinders: 1
  • rated power of 110 kW at 1200 min⁻¹
  • bore / stroke: 160 mm / 240 mm
  • displacement of 4.83 L
  • compression ratio of 16.1:1 (nominal)
  • average piston speed of 9.6 m/s at 1200 min⁻¹
  • supercharger (oil-free screw type): Atlas Copco ZR 90-10.4VSD
  • max. boost pressure: 6 bar(a)
  • intercooler temperature (adjustable) of 30–80 °C
  • injection system: PLD, max. 1200 bar

Contact persons for the field of piston engines and thermodynamics

Prof. Dr.-Ing.
Leander Marquardt

Kolbenmaschinen und Thermodynamik

Tel:

+49 3831 45 6545

Room:

317, Haus 19

Maik Habeck

Laboringenieur

Tel:

+49 3831 45 6536

Room:

135b, Haus 20