Inprinciple,anEMBisanapproachusedtounderstandtheefficiencyofenergyconversionandhowotherinputsareusedtodelivergoodsandservices。
Technicalunderpinning ,andasystematicaccountingforenergyflowsandtransformationsinasystem。 Thetheoreticalbasisfortheenergybalanceisthefirstlawofthermodynamics,whichstatesthat‘energycannotbecreatedordestroyed,onlymodifiedinform’。
Contrarytomassbalances,asystemcanonlyhaveoneenergybalancethatdescribesit,sincedifferenttypesofenergyareconsidered,mathematically,tobeinterchangeable。
Specifically,thechangeinenergyforasystemequalstheheattransferredintothesystemminustheworkdonebythesystemplusthenetenergyinputassociatedwithmassflows。
Massflowscarryenthalpy,kineticandpotentialenergies。