Heat Recovery Power Generator Sets for Low Temperature Heat Sources

Power Generation from Heat emitted Water Steam       －－Data for temperature and pressure reducing equipments:

Feeding inlet steam pressure (MPa)  0.5 -1.8  0.8 - 2.0   1.1 - 2.2   1.4 - 2.4   1.7 - 2.6   2.2 - 2.9   2.6 - 3.0   2.9 - 3.2

Exhausted Steam Pressure (MPa)   0.3      0.5         0.7       0.9      1.1       1.4        1.7        1.9

 

Data for radiating Steam:

(1). Condensing recovery: inlet steam pressure: 1.2-0.2MPa (absolute pressure), Exhausted steam pressure: 0.05-0.10MPa (Absolute Prssure, AP)

(2). Double cycle recovery: inlet steam pressure 1.2-0.2MPa (absolute pressure),exhausted water temperature: 45-55 Celsius Degree

 

Power Generation from Heat emitted from Industrial Liquids (above 65 Celsius Degree)

Water temperature above 150 Celsius Degree, power can be generated directly by Screw expanding Generator set and Condenser as recovery power generation.

 Water temperature ranges 65-150 Celsius Degree, power can be generated by double cycle screw expanding generator set and condenser as recovery power generation.

 

Power Generation from Flue Gas

If flue gas temperature is above 200 Celsius Degree, then using water agent to produce power with system as: flue gas heat exchanger+ screw expanding generator set+condenser

If flue gas is between 130-200 Celsius Degree, power will be generated by system of flue gas heat exchanger + double cycle screw expanding generator set + condenser

Power Generation from Heat from Industrial Radiation Source.

If heat radiating body temperature is above 900 Celsius Degree, then water agent is used to generate power with system of : radiating heat exchanger + Screw expanding generator sets + condenser.

If heat radiating body temperature is between 600-900 Celsius Degree, then power will be generated by radiating heat exchanger + double cycle Screw expanding generator sets + condense 

Power Capacity Calculation

1. Power by Steam pressure difference:

 

2. Power from radiating body

(1). Condensing heat recovery: inlet steam pressure: 1.2-0.2MPa (AP), Exhaust pressure: 0.05-0.10MPa(AP)

Unit Power KW/(t/h): exhaust steam pressure: 0.05Mpa, 30KW(1t/h)

                  exhaust steam pressure: 0.10Mpa, 16KW/(1t/h)

(2). Double Cycle heat recovery: inlet steam pressure 1.2-0.2MPa(AP), Emitted condensing water temperature: 45-55 Celsius Degree.

Unit power: KW/(t/h): emitted condensing water 55 Celsius Degree, 40KW/(1t/h)

 

3. Power capacity from Industrial heat Liquids

(1). Water temperature above 150 Celsius Degree, power can be generated directly by Screw expanding Generator set and Condenser as recovery power generation.

Unit power: Unit power: KW/(t/h): 3.5-30.0 KW/(1t/h)

Water temperature ranges 65-150 Celsius Degree, power can be generated by double cycle screw expanding generator set and condenser as recovery power generation.

Unit power: KW/(t/h): 0.15-3.0 KW/(1t/h)

 

4. Power capacity from flue gas

If flue gas temperature is above 200 Celsius Degree, then using water agent to produce power with system as: flue gas heat exchanger+ screw expanding generator set+condenser

Unit Power: KW/(1000Nm³/h): 2.0-10KW/(1000Nm³/h) or above

 

If flue gas is between 130-200 Celsius Degree, power will be generated by system of flue gas heat exchanger + double cycle screw expanding generator set + condenser

Unit Power: KW/(1000Nm³/h):  0.3-1.8 KW/(1000Nm³/h)

 

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