ENN E390 Micro Gas Turbine

E390 Micro Gas Turbine

Parameters Simple Cycle Regenerative Cycle
Electrical performance[1] Rated power output kW 396 3446
Rate power generation efficiency % 17.1 26.5
Fuel requirements Fuel type Natural gas Natural gas
Fuel calorific value range MJ/Nm3 30~37 30~37
Fuel supply pressure bar(g) [9] 6~8 6~8
Fuel flow rate at rated condition Nm3/h [2] 245 138
Heat rate kJ/kWh 21053 13585
Tail gas NOx emission ppmv =<25 (@15% oxygen content) =<25 (@15% oxygen content)
Flue gas flow rate kg/s 2.9 2.85
Flue gas flow rate m3/h (operating condition) 25891 17040
Flue gas flow rate Nm3/h (standard condition) [10] 8174 8003
Flue gas temperature °C 592 308
Dimensions & weight L x W x H mm 5200 x 2500 x 4709 8189 x 2500 x 4709
Weight t 16 17.5
Environmental performance Noise (at lm distance) dB(A) =< 35 =< 35
CHP Steam output t/h [3] 1.9 0.6
Drying heat kW [4] 1514 566
Hot water output t/h [5] 30.3 12.8
CCHP Cooling capacity: kW [6] 2089 448
Cooling capacity: 10,000 kcal/h [6] 180 38
Heating capacity: kW [7] 1338 458
Heating capacity: 10,000 kcal/h [7] 115 39
Energy supply area: m2 [8] 23200~52200 5000~11200

Notes:

[1] Rated operating performance under standard conditions (15°C, 101.325 kPa, 60% relative humidity).

[2] Derived based on the lower heating value of natural gas at 34 MJ/Nm3 (where the standard conditions for Nm3 are 0°C and 101.325 kPa).

[3] Steam output is based on a steam pressure of 0.8 MPa(g) and a steam temperature of 175°C.

[4] Drying heat is based on flue gas heat at temperatures above 120°C.

[5] Hot water output is derived under the conditions of an inlet water temperature of 15°C, an outlet water temperature of 60°C, and a flue gas outlet temperature of 75°C.

[6] Cooling capacity is obtained based on an absorption chiller exhaust gas temperature of 160°C, with a simple cycle COP of LS and a heat recovery cycle COP of 1.0.

[7] Heating capacity is derived based on an absorption chiller exhaust gas temperature of 145°C and a COP of 0.93.

[8] Energy supply area is calculated based on a cooling load of 40~90 W/m2, which is for reference only. Due to variations in the load of different buildings, the actual energy supply area shall be determined according to the specific conditions of the building.

[9] The fuel supply pressure here refers to the pressure required for gas to be supplied directly to the gas turbine (without a compressor) or supplied to the gas turbine after being compressed by a compressor.

[10] This refers to the flue gas volume flow rate under standard conditions (0°C, 101.325 kPa).

Successful Case

Utilization of Low-Calorific-Value Vent Gas Resources in Oilfields

E390 Micro Gas Turbine Cogeneration Project at a Joint Station in Tuha Oilfield

Fuel typeEnergy SolutionDelivery time
Low-calorific-value vent gas

One E390 gas turbine+

One 500 Nm3/h compressor+

One 1500 kW flue gas heat exchanger
November 2023

It uses low-calorific-value vent gas generated from oilfield gas flooding recovery to generate electricity, avoiding environmental pollution and resource waste caused by direct flaring. The waste heat from the gas turbine is used to produce hot water for crude oil heating, replacing the original electric boiler and reducing energy consumption costs.

Customer Value:

  • Direct energy expenditure reduction: Annual electricity cost savings of RMB 137 million.
  • Activation of resource value: Conversion of 172 million m3 of vent gas per year into energy assets.
  • Manifest carbon emission reduction: Annual CO2 emission reduction of 821.56 tons. Synergistic pollutant control: Elimination of NOx emission issues caused by flare
  • Cascaded energy utilization: The gas turbine generates 48 million kWh of electricity annually; 8.06 million kWh of energy is recovered from waste heat annually.
  • Enhanced energy security: Reduction of unplanned production halts caused by power grid
AEC Tuha