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"With respect, sir, no," Arjun said. He scrolled. "Here is the louver loss—manufacturer cut sheet. Here is the coil loss—ASHRAE Fundamentals, Chapter 21. Here are the duct elbows—I used the CR-1 coefficient from the SMACNA manual. Every single number has a citation and a formula."
He clicked into cell G42, checking the friction loss rate. He had measured the straight runs three times, but the fittings were the real killers. Every elbow, every damper, every transition was a thief, stealing energy from the air. He leaned in, his glasses slipping down his nose, as he cross-referenced the ASHRAE duct fitting database. "One more check," he whispered to the empty room. esp calculation hvac excel sheet
"With respect, sir, no," Arjun said. He scrolled. "Here is the louver loss—manufacturer cut sheet. Here is the coil loss—ASHRAE Fundamentals, Chapter 21. Here are the duct elbows—I used the CR-1 coefficient from the SMACNA manual. Every single number has a citation and a formula."
He clicked into cell G42, checking the friction loss rate. He had measured the straight runs three times, but the fittings were the real killers. Every elbow, every damper, every transition was a thief, stealing energy from the air. He leaned in, his glasses slipping down his nose, as he cross-referenced the ASHRAE duct fitting database. "One more check," he whispered to the empty room.
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