The pinch technology combined with a heat pump applied in a three-effect evaporator and energy-saving performance assessment

摘要: This research investigated optimal energy utilization with pinch technology based on an actual gelatin production factory using a three-effect evaporator (TEE). A TEE is well-known device used extensively when concentrating process fluid large amounts of boiler steam. Under ideal use conditions, the exhaust heat can be recovered addition pump system. The study results showed that original demand and discharge were 1,736.2 1,733.2 kWh, respectively. Simulating use, decreased to 1,531.5 1,527.7 When was recover heat, 324 kL per annum fuel oil saved, while electricity increased 131 kWh. total investment cost 86,550 US$, but annual operation could save up 166,421 US$. net present value estimated 544,316 US$ 5-year equipment operation. expense completely within seven-month remuneration period.