Is it economically viable to produce low-pressure steam using heat transfer oil?
Thread Content
Previously, the company collected hot water and supplied it to other companies. Now, this company needs hot water due to improvements in its manufacturing processes, and our company no longer has a place to use that hot water. We have a heat transfer oil steam generation unit, and we are considering using hot water to produce low-pressure saturated steam. I’m not sure whether this is cost-effective. Could everyone help me do the calculations? Relevant parameters: Hot water temperature: 95 degrees; flow rate: 10 m3/h; motor power: 15 KW; electricity cost: 0.68 yuan/kWh; price of hot water: 10.5 yuan/t. Steam: Low-pressure steam at 0.5 MPa; steam temperature: 158 degrees; heat value: 2760.36 KJ/kg; price of steam: 190 yuan/t. Coal: Calorific value of 5500 kcal; price: 950 yuan/t. The heat transfer oil steam generator is likely to be of the tubular type; however, I’m not aware of the costs related to equipment depreciation and maintenance. Please help me with the calculations
It’s definitely cost-effective; at least 95 degrees of sensible heat can be utilized, which saves a lot of coal – at least 10% less coal consumption.
I’m not sure what the original poster means – is it to apply that 95-degree water temperature to the heat transfer oil? It’s definitely cost-effective if it’s used in the water that generates steam for heat transfer oil