Jiang Yu blinked innocently at the old professor. "I... I don't know how..."
The old professor nodded knowingly, but didn't make things difficult for her. "You're not from this department, are you? Since you're here, pay attention in class and sit down."
Jiang Yu sat down awkwardly, burying her face in her arms.
It was so embarrassing; she had never made such a fool of herself in front of so many people in her entire life.
Jiang Ming hunched over in the front row, barely daring to breathe loudly. His sister was sure to skin him alive when she got home.
Before the atmosphere could even ease, a boy in the corner raised his hand.
Song Shi'an glanced at him out of the corner of his eye and recognized him. Then he remembered—wasn't this the guy who had made sarcastic remarks in the restroom last time, implying he "had a sugar daddy"...?
The boy's tone was clearly gloating. " Professor Wang, someone only comes to class once every ten days or half a month. He's the one who should retake the course, isn't he? He probably doesn't even know what these questions are about."
Someone nearby immediately chimed in, "That's right, everyone sits in the classroom every day, which is still better than some people who only come a few times every two months. How can they graduate like that?"
Song Shi'an leaned back in his chair. Wait, how did this even get mentioned to him? He hadn't even settled the score for his foul mouth in the restroom last time, and now he's jumping around again.
What a petty man! He's even more narrow-minded than his shrunken T-shirt.
Many people subconsciously turned their heads to look at the corner of the back row.
The old professor remained calm. He had heard before that the Energy Storage Department had produced a famous actor who got near-perfect scores in his first-year courses, so the department turned a blind eye and let him be, as long as he passed the final exams.
Today is a good opportunity to see what this student is really capable of.
He smiled, his gaze sweeping over the first few rows and landing on the young man in the last corner. "Since everyone has doubts about this student, would this student be willing to answer this question to prove himself? This question is indeed a bit beyond the syllabus; it hasn't been covered in class before. I wanted to test everyone's understanding of the course."
The whispers in the classroom grew louder, and many students looked down at their textbooks. The textbooks only briefly mentioned the concept of phase change materials, without mentioning any complete solutions for composite temperature control, which was indeed beyond the scope of the curriculum.
Professor Wang still loves to tease people; he always digs a hole with a smile, just to see if you'll jump in.
Song Shi'an stood up helplessly. He knew that these people just couldn't stand him; they were big men with hearts as small as pinholes.
He organized his thoughts, his voice calm and measured, his speech clear and logical, as if he had prepared a lecture beforehand. " Professor Wang, I will explain in three parts: materials, structure, and operational control logic. First, the selection of composite phase change media... At the same time, a small amount of nano-silica is added to suppress leakage problems after phase change cycling and extend the material's cycle life."
The classroom fell silent instantly.
"Secondly, the composite thermal management structure design of the cabin... compared to all-day liquid cooling, it can reduce temperature control power consumption by more than 60%. Thirdly, the supporting intelligent operation and control strategy... based on the power plant output prediction curve and real-time meteorological data, dynamically determines when to store heat and when to release heat, further reducing external power supply losses to the power plant."
He paused briefly, as if organizing his thoughts, before continuing.
"This composite solution does not require significant modifications to the existing energy storage module frame and can be directly integrated at the module level. The only drawback is the slightly higher initial procurement cost of the phase change plates. However, based on the current peak-valley electricity pricing, the cost can be recouped in three to four years through electricity savings, resulting in better long-term economic benefits."
As soon as he finished speaking, the entire classroom fell silent. Everyone was stunned, and many people's pens stopped on their notebooks, completely unable to follow his train of thought.
Professor Wang adjusted his glasses, his approval evident in his eyes. "Excellent. It comprehensively covers the entire chain of materials, structure, and electrical control engineering, even taking into account implementation costs and applicable scenarios."
"I discussed this idea with my colleagues at the research institute some time ago. It's one of the most promising directions for cryogenic energy storage temperature control. Many graduate students can only give partial theoretical answers, but you, an undergraduate, can combine it with engineering practice to make a complete deduction, which is very commendable."
He waved his hand. "Sit down. Come to my office after class."
Song Shi'an breathed a sigh of relief and sat down, then suddenly gasped. Wait, why did Professor Wang call him to his office after class? Could it be because he had taken too many leave days before and was going to settle scores with him later?
He calculated his attendance rate for the past two months and guiltily turned to the next page of his textbook.
Jiang Ming turned his head from the front row and looked at Song Shi'an with an unprecedented look of admiration.
He was wrong. He had always looked down on his sister for only caring about looks. For the entire last year, apart from knowing that there was such a top student in the Energy Storage Department, no one paid any attention to him at all.
He's completely transformed in just one summer vacation, that's amazing! Did he go somewhere for further studies? Could you take him on a training program?
Jiang Yu was completely captivated. Although she didn't understand a single word from beginning to end, the way An'an stood there calmly and confidently rattled off a whole bunch of technical terms was simply radiant.
As soon as the bell rang, the students who had been about to ask for autographs stopped in their tracks when they saw Song Shi'an get up and follow Professor Wang.
Just kidding, who is Professor Wang? He's the chairman of Hanyuan Electric Power Technology, and he came to the university to teach after retiring.
No one in the entire energy storage system dares to mess with him; they'd have to wait until An'an comes out of the office alive before they can even get an autograph.
Upon arriving at his office, Professor Wang sat down in his chair and leisurely began to make tea.
Rinsing the tea, warming the cup, and pouring water—the whole sequence of actions was performed with effortless grace.
Song Shi'an stood to the side, looking at the solid wood tea table that looked expensive. "The professor is quite health-conscious these days."
Professor Wang looked up at Song Shi'an, who was filled with curiosity, and handed him the teacup. "Try it."
Song Shi'an had just finished talking a lot and was indeed thirsty, so he said thank you and downed the drink in one gulp.
I almost spat it out the next second. It was so bitter! What kind of tea was this? It was more bitter than my life.
Professor Wang looked at Song Shi'an, who was guzzling water, and shook his head helplessly.
These days, young people, you brew them authentic Wuyi rock tea, and they down it in one gulp, looking utterly disgusted...
Song Shi'an put down his cup and wiped his mouth. " Professor Wang, is there something you wanted to discuss with me?"
Professor Wang picked up a document from the side and handed it to me. "Are you interested in participating? Normally, you shouldn't participate since you're still an undergraduate, but I'm very satisfied with your answer today. Why don't you consider it?"