query calculateSinglePhase {
  calculateSinglePhase(
    request: {
      inputs: {
      calculationMethod: DESIGN,
    selectedFluidSide1: {
      fluidId: 53,
      isGas: false,
      inputValue: null
    },
    selectedFluidSide2: {
      fluidId: 53,
      isGas: false,
      inputValue: null
    },
    coCurrent: false,
    selectedHeatExchangers: [
      {
        heatExchangerInputType: PARENT,
        id: 1
      }
    ],
    heatLoad: {
      amount: 1500,
      unit: KILOWATT
    },
    inletTemperatureSide1: {
      amount: 80,
      unit: DEGREE_CELSIUS
    },
    inletTemperatureSide2: {
      amount: 20,
      unit: DEGREE_CELSIUS
    },
    outletTemperatureSide1: {
      amount: 40,
      unit: DEGREE_CELSIUS
    },
    outletTemperatureSide2: {
      amount: 50,
      unit: DEGREE_CELSIUS
    },
    flowSide1: null,
    flowSide2: null,
    maxPressureDropSide1: {
      amount: 20000,
      unit: PASCAL
    },
    maxPressureDropSide2: {
      amount: 20000,
      unit: PASCAL
    },
    numberOfPasses: null,
    numberOfPlates: null,
    numberOfPlatesStack1: null,
    numberOfPlatesStack2: null,
    oversurface: null,
    portSwitch: true,
    autoperformance: false
      }
    }
  ) {
    calculationResult {
      calculatedHeatExchangers {
        calculatedHeatExchanger {
          modelName
          modelId
        }
      }
    }
  }
}