Methane enters a heat exchanger at a volumetric flow rate of 235.0 m/min, at an absolute pressure of 1.013 bar and temperature of 15.0°c. at these conditions, the specific enthalpy of methane is -23.181 kj/kg. the methane leaves the heat exchanger at an absolute pressure of 1.013 bar and temperature of 80.0 c. the corresponding specific enthalpy at these conditions is 125.656 kj/kg. the methane is heated by a stream of saturated steam entering the heat exchanger at 1.7 bar (absolute) and leaving as a liquid at 68 c. find the volumetric flow rate of saturated steam into the heat exchanger by following the steps below. ohat is the mass flow rate of methane into the heat exchanger? number 156.98 kg methane/ min what rate of heat is supplied to the methane stream in order to heat it from 15..0"c to 80.0 c? number 390,4 kw what is the minimum mass flow rate of saturated steam into the heat exchanger? incorrect (scroll down for more questions.) the minimum mass flow rate of saturated steam into the heat exchanger is found by making the assumption that the heat lost by the saturated steam stream is equal to the heat added to the methane etream this makes the next exit number 6.673 kg sat. steam/ min try again explanation
periodic table calou ator print question 1 ol 3 incomect incorrect the minimum mass flow rate of saturated steam intorne heat exchanger is found by making the assumption that the heat lost by the saturated steam stream is equal to the heat added to the methane stream (this makes the assumption that no heat is lost anywhere in the process.) (scroill down for more quest map number 6.673 kg sat. steam/ min what is the volumetric flow rate of saturated steam into the heat exchanger? the heat lost by the saturated steam stream is equal to the mass flow rale of steam multiplied by the change in specific enthalpy between the saturated stream and the exiting liquid water number 5.9 m2 sat. steam/min locate the specific enthalpy of saturated steam at 1.7 bar using a saturated steam table that lists specific enthalpy by pressure. for saturated steam you are concerned with the enthalpy value for steam, and confirm in your fext that this value is 2699.0 kj/kg. to find the specific enthalpy of liquid water at 68 c, again consult the saturated steam tables, but this time the table that lists values according to temperature. at low pressures, the enthalpy of the liquid water is approximately equal to the enthalpy of saturated water at the same temperature. confirm in your text that the specific enthalpy of water at 68 c is 284.6 kjkg,