LY/T 3161-2019Comprehensive energy consumption of technical furfural production (English PDF)

5.1 Calculation principles

The calculation of comprehensive energy consumption for industrial furfural production should comply with the relevant regulations of GB/T 2589. Standard coal coefficient for conversion of common energy and energy-consuming working medium as specified in Appendix A. For units that produce steam by themselves, the amount of steam must not be doubled with the amount of coal consumed.

5.2 Calculation method of comprehensive energy consumption

The calculation of comprehensive energy consumption is performed according to formula (1) or (2).

qtzqmd QQQQQ = ... (1) in the formula.

Q--Comprehensive energy consumption in kilograms of standard coal (kgce);

Qd--Total power consumption in kilograms of standard coal (kgce);

Qm--Total coal consumption, unit is kilogram standard coal (kgce);

Qzq-total steam consumption, unit is kilogram standard coal (kgce);

Qqt--Total consumption of other energy sources (gasoline, diesel, water, compressed air, etc.) in kilograms of standard coal (kgce).

Or jz QQQ = ... (2)

In the formula.

Qz--Comprehensive energy consumption for direct production, in kilograms of standard coal (kgce);

Qj--Comprehensive energy consumption for indirect production, in kilograms of standard coal (kgce).

5.3 Calculation method of comprehensive energy consumption per unit output

The calculation of comprehensive energy consumption per unit output is performed according to formula (3).

In the formula.

q-comprehensive energy consumption per unit of output, in kilograms of standard coal per ton (kgce/t);

M--The output of qualified industrial furfural products in the statistical period, the unit is ton (t).

6.1 Test of energy consumption

6.1.1 The configuration and management of energy measuring instruments shall comply with the requirements of GB 17167 and LY/T 2394.

6.1.2 Test under normal production and stable conditions of production equipment.

6.1.3 The test method shall meet the requirements of GB/T 15316 and GB/T 6422.

6.2 Energy consumption measurement requirements

6.2.1 Measurement of steam consumption

Install a steam flow meter in the production workshop to measure the amount of steam consumed.

6.2.2 Measurement of power consumption

Install an energy meter in the production workshop to measure the energy consumed.

6.2.3 Measurement of water consumption

Install a water meter in the production workshop to measure the amount of water consumed.

6.2.4 Measurement of compressed air

The energy consumption of compressed air is measured by the actual power consumption of the air compressor.

6.2.5 Measurement of raw coal

Before coal is sent to the boiler, a measuring instrument is installed to measure it according to the actual coal consumption of the boiler.

6.2.6 Measurement of fuel consumption (gasoline, diesel, etc.)

The consumption of oil (gasoline, diesel, etc.) is measured by the actual fuel consumption of all relevant fuel-consuming equipment.

Appendix A

(Informative appendix) Commonly used energy and energy consumption working medium

Table A.1 Standard coal coefficient for common energy and energy-consuming working medium

Energy name unit average low calorific value converted to standard coal coefficient Electric kilowatt hours 3 600 kJ/(kW · h) [860 kcal/(kW · h)] 0.122 9 kgce/(kW · h) Gasoline kg 43 070 kJ/kg (10 300 kcal/kg) 1.471 4 kgce/kg Diesel kilograms 42 652 kJ/kg (10.200kcal/kg) 1.457 1 kgce/kg Raw coal kg 20 908 kJ/kg (500 0 kcal/kg) 0.714 3 kgce/kg Steam (low pressure) kg 3 763 MJ/t (900Mcal/t) 0.128 6 kgce/kg Variation unit coal consumption coefficient Fresh water ton 2.51 MJ/t (600 kcal/t) 0.085 7 kgce/t Soft water ton 14.23 MJ/t (3 400 kcal/t) 0.486 0 kgce/t Standard cubic meters of compressed air 1.17 MJ/m3 (280 kcal/m3) 0.0400 kgce/m3

Note 1. Calculated at 29 308 KJ (7 000 kcal) per kilogram of standard coal;

Note 2. Raw coal can be converted to standard coal by using the average heat value measured actually, or the values listed in the table can be used;

Note 3. Biomass can be converted into standard coal using the actual measured average heating value.

Note 4. Fresh water, soft water and compressed air are energy-consuming working fluids