‘For most systems its perfectly sufficient to design a suitable exchanger on that basis. When you allow for fouling, which itself is difficult to estimate, there is already a lot of uncertainty. Also don’t forget that heat exchanger manufacturers tend to use standard bundle sizes and configurations so all you need to do is make sure your design isn’t undersized. The control system will ensure it works.’ Throughout my little lecture Sylvia listened with a rapt expression, nodding as her understanding increased. ‘The real time where things get tricky is with non-Newtonian fluids or condensation with non-condensable gases. Then you need to use a finite element approach. My research is looking at this area, you’ll have to come and see my test rig sometime.’ At that point Sylvia gave a giggle. ”Come and see my test rig sometime’ sounds like an alternative to ‘come up and see my etchings’,’ she explained. I could see that Sylvia had a real flair for the subject as she subjected me to half. Hot and horny cum fills my mouth. I swallow as he pulls out. He rubs my chin as I smile. I breathe as his scent fills my lungs and nostrils. My cock throbs. I grab for my cock but my arm doesn't move. I want my i cock. I pull harder. I reach with my hand but nothing is there to grab. I squeeze my knees but the horse legs prevent my thighs from coming together. My cock and balls just dangle free. I breathe in deep and hard as I try to break free. The taste of cum fills my lungs. I lick the air in front of me. I stared down a sexy daddy not too far from me. Almost all of us have daddies on us. The whole place fucking.I say, ‘Daddy Daddy with the sexy hot package. The one in the blue denim jacket and the red bandana. Come to me. I want you. Im so fucking horny.’He smiles and comes towards. He tickles my chin. I can’t help but lick the air again and again.Daddy says, ‘You think i’m sexy? You horny pig.’I am still licking the air as he opens his pants. He pulls out his cock. I can’t help.
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