TS62796IEC:2013(E) - 13 - 7 Measurement of efficiencies 7.1 General Clause 7 deals with two kinds of measurements in addition to what is dealt with in Clauses 5 and 6, and as addressed in 4.1: electric-only conversion efficiency, specifications in 7.2; electroheating efficiency in normal operation, guidelines in 7.3. 7.2 Measurement of electric-only conversion efficiency The input electric power and power factor and the electric output power flow are measured (Scientific), and reported under normal operation with equal workload specification.The workload is then eithera normal,adummy oraperformancetestworkload. All measurements of the electric energy consumption shall reflect specific consumption by defined parts of the installation during a defined time period or a specified operation. The following shall be reported, if applicable: a) The energy consumption of a batch type installation during one cycle; this may be measured and averaged over a defined number of cycles. The number of cycles and definedamount of workload. from morning to evening. doy If the final frequency conversion is by a standardised component, its manufacturer data may be used. Any ancillary electric power needed for energising a component or assembly for the final freguency conversionisincluded in theelectric inputfromthesupplynetwork.The electric power consumption by any cooling devices is not included, neither of any other control circuit. included. Madison. 7.3 Measurement of electroheatingenergy consumption and efficiency In addition to the specifications in Clause 5, the power consumption of the mechanical needed for the operation and use of the electroheating equipment shall be No further accessories considered separately. also consideredas separate in Clause 8. 8 Energy recovery 8.1 General In general, the media by which thermal energy waste or release from the equipment occurs are fluids. Losses transferred through any insulation to the ambient will generate convective streams with low energy content above ambient and may not be recoverable. Fluids streaming from the process itself may have a high energy content well served for recovery and are in the focus of the following. The energy recoverability is defined by five factors: prin TS62796IEC:2013(E) - 14 the heat capacity per mass unit of the fluid which has extracted the energy, in J/(K-kg); the flow rate of this fluid, in kg/s; the temperature of this fluid immediately after extraction, in 'C; the ambient temperature where the transported energy is to be used as thermal energy, or to be converted into mechanical or chemical energy, in C; the availability of the energy being a constant flow or pulsed,depending on ramping-up and down following start and end of equipment operation, the continuity and fluctuations of importance. The first factor is a measure of the simplicity of transport and of prospective heat losses in the The second factor is a measure of the speed of heat transfer and the prospective usefulness of the thermal energy, as such. The combination of the third and fourth factors is a measure of the prospective usefulness in aheat engineorfor otherpurposes. The fifth factor is related to the practical usefulness of the available recovered energy and any need for energy storage. 8.2 Temperature and pressure of thefluid These two quantities are measured just after extraction from the equipment. Any mechanical energy for compression or decompression per volume unit conditioned for transport of the fluid is also measured. NOTE Mechanical energy and thermal energy are recorded separately on 8.3 Hot fluid heat capacity performance factor This is calculated from tabulated physical and thermal property specifications of the actua gas or liquid. The overall heat capacity per volume unit of the medium used for transporting the thermal energy is determined as the integral of the thermal energy per volume unit over the actual initial and usage temperature interval. Since the density of gase