Isenthalpic flash

This function is used to determine the equilibrium solution output at constant pressure and enthalpy. Here the temperature is a free variable that is determined along with the equilibrium solution output.

isenthalpic

POST https://api.olisystems.com/engine/flash/{dbs_file_id}/isenthalpic

run an isenthalpic flash calculation

Headers

Name	Type	Description
Authorization	string	Bearer {access_token}
Content-Type	string	application/json

200 Please look at "API call blueprint" page to find out how to obtain results

{
	"code": 200,
	"data": {
		"file_id": "dee854a6-59db-487d-ad08-a20dee691133",
		"jobId": "f6b3375e-cd0f-4ace-a5ee-71e047b76754",
		"resultsLink": "https://devapi.olisystems.com/result/flash/f6b3375e-cd0f-4ace-a5ee-71e047b76754?context=engine",
		"status": "IN PROGRESS"
	},
	"message": "Process execution started Successfully",
	"status": "SUCCESS"
}

Request payload

{
    "params": {
        "temperature": {
            "value": 40.0,
            "unit": "°C"
        },
        "pressure": {
            "value": 1.5,
            "unit": "atm"
        },
        "enthalpy": {
            "value": -7.34600e6,
            "unit": "cal"
        },
        "inflows": {
            "unit": "mol",
            "values": {
                "H2O": 50.0,
                "BENZENE": 10.0,
                "CH4": 20.0,
                "NAOH": 35.0
            },
            "totalAmount":
            {
                "value": 115.0,
                "unit": "mol"
            }
        }
}

params	type	description
temperature	valueObject	specified initial guess temperature with unit
pressure	valueObject	specified pressure with unit
enthalpy	valueObject	specified total enthalpy with unit
inflows	object	specified inflow species composition, see Inflows Input

in addition to the inputs shown above some optional properties may also be specified. They can be viewed here

If kinetic reactions are defined in the chemistry model, kinetic calculation inputs are required to be specified. A detailed description can be found here.

Response (status = PROCESSED)

{
    "code": 200,
    "data": {
        "result": {
           ...<snip>...
            "calculatedVariables": [
                {
                    "name": "temperature",
                    "value": 39.93432750114107,
                    "unit": "°C"
                }
            ],
        }
    },
    "message": "Results returned successfully", 
    "status": "PROCESSED"
}

The output of this calculation is the stream output which is common result output for all OLI's flash calculations or an error. In addition to this output the result also contains the solution temperature which can be conveniently retrieved from the data.result.calculatedVariable array

data.result.calculatedVariables [ { } ]	type	description
name	string	name of the calculated variable, i.e. temperature
value	number	value of the calculated variable
unit	string	unit of the calculated variable, which is the same as the one specified in the input initial guess, i.e. params.temperature.unit in the input

Survey Calculation

Survey calculation is supported for the variables below. Please refer to Survey calculation for explained input schema.

supported params.surveyInputs[{}].field

"/params/temperature/value"

"/params/pressure/value"

"/params/enthalpy/value"