Heat exchanger design
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Could someone please explain: why, when using Aspen to design the heat exchange network, the stream properties specified there result in an incorrect design of the heat exchanger? For example: a cold fluid with a temperature of 1.3 to 1.5 can be matched with a hot fluid at 50 to 49, but when designing the heat exchanger, it turns out that the cold fluid needs to reach 48 in order to work properly Does the property equation need to be changed when there is a phase transition? If I need to choose a material property equation again, how should I do it? Which one to choose?
It’s been three years since I graduated, and I’ve almost forgotten everything about heat exchangers. You need to hurry up; I can’t afford to lose all that knowledge. I’m currently designing a heat exchanger, but I don’t even know where to start