ORC Cycle (Organic Rankine System)
ORC (Organic Rankine Cycle) es un ciclo de Rankine que utiliza un fluido orgánico como fluido de trabajo en lugar de agua / vapor.
La idea principal en la mayoría de los ORC-plantas es producir energía eléctrica a partir de calor de temperatura relativamente baja y o cantidades relativamente pequeñas de calor residual. Perder las aplicaciones de ORC en bajas temperaturas cuando ofrece muchos beneficios en comparación con el proceso Rankine de vapor. Típicas fuentes de calor de baja temperatura para la aplicación ORC son los residuos de calor de los motores de combustión, turbinas de gas, biomasa y muchos procesos industriales. more... |
ORC (Organic Rankine Cycle) is a Rankine cycle that uses an
organic fluid as the working fluid instead of water/steam. The main idea in most of the ORC-plants is to produce electric power from relatively low temperature heat and or relatively small amounts of waste heat. For low temperature waste heat applications ORC provides many benefits compared with the steam Rankine process. Typical low temperature heat sources for ORC application are the waste heat from combustion engines, gas turbines, and many industrial processes. more... |
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HOW DOES IT WORK? (Infinity Turbine)
The hot flow of liquid transfers heat through the evaporator heat exchanger to the refrigerant, that boils and then is expanded through the turbine, the cool flow takes the heat out of the refrigerant to the condende back to the liquid through the condenser.
The feedpump then pressurizes that refrigerant back into the evaporator and the cycle repeats. ORC operates on two Separate Flows of Hot and Cool Liquid |
Evaporator:
Types of hot liquid: water, oil, steam... Flow: - 40.000 btu per KWe - 12KW thermal per Kwe - 2-3 gpm per KWe - Max. 11 litres/minute per KWe - Heat necessary: 80 C - 140 C |
Condenser:
Types of hot liquid: water, oil, steam... Flow: - three times input heat flow - 6-9 gpm per KWe - Heat necessary: Less than 30 C - Delta T: Needs to be 65 C less than input |
HOW DOES IT WORK? (TrioGen)
I => II
Pre-feed pump The pre-feed pump is used to pump the working fluid from the storage vessel to the main pump. The liquid enters the main pump at a pressure of approximately 4 bar. II => III Main pump, in HTG The main pump brings the pressure of the working fluid, depending on the rotation speed of the turbine, up to a working pressure of approximately 30 bar. III => IV Recuperator In the recuperator the working fluid is preheated by the vapour leaving the turbine. |
IV => V
Evaporator In the evaporator the working fluid is further preheated, evaporated and superheated. V => VI TurbineIn the turbine the working fluid expands which drives the electrical generator and the main pump. VI => VII RecuperatorIn the recuperator the working fluid is preheated by the vapour leaving the turbine. VII => I Condenser In the condenser the working fluid is condensed through water-cooling |