No negative numbers necessary.
Heat Transfer through Walls1) Room B’s Wall #4, made of Sandstone, if the temperature inside is 77°F and outside is 104°F? -884.187 = 0.08187 x 400 x -27 |
| 2) Room B’s 4 Walls, made of Slate, if the temperature inside is 70°F and outside is 41°F? 5614.2985 = 0.0968 x 2000 x 29 |
| 3) Room C’s Wall #2, made of Hastelloy C, if the temperature inside is 64°F and outside is 90°F? -4507.62 = 0.5779 x 300 x -26 |
| 4) Room B’s Wall #3, made of Hairfelt, if the temperature inside is 68°F and outside is 29°F? 56.3453 = 0.00241 x 600 x 39 |
| 5) Room C’s Floor, made of Urethane foam, if the temperature inside is 85°F and outside is 14°F? 26.9265 = 0.00101 x 375 x 71 |
| 6) Room C’s Wall #1, made of Concrete, lightweight, if the temperature inside is 63°F and outside is 16°F? 226.3442 = 0.00963 x 500 x 47 |
| 7) Room C’s TSA, made of Fire-clay brick 500oC, if the temperature inside is 82°F and outside is 78°F? 633.7637 = 0.06742 x 2350 x 4 |
| 8) Room C’s Wall #1, made of Ground or soil, dry area, if the temperature inside is 60°F and outside is 55°F? 60.1979 = 0.02408 x 500 x 5 |
| 9) Room C’s Wall #1, made of Softwoods (fir, pine ..), if the temperature inside is 81°F and outside is 66°F? 43.3425 = 0.00578 x 500 x 15 |
| 10) Room A’s 4 Walls, made of Pitch, if the temperature inside is 59°F and outside is -5°F? 420.7112 = 0.00626 x 1050 x 64 |
| 11) Room C’s TSA, made of Straw slab insulation, compressed, if the temperature inside is 71°F and outside is 30°F? 417.605 = 0.00433 x 2350 x 41 |
| 12) Room A’s Wall #3, made of Balsa wood, if the temperature inside is 66°F and outside is 35°F? 26.8724 = 0.00231 x 375 x 31 |
| 13) Room B’s Ceiling, made of Plywood, if the temperature inside is 58°F and outside is 85°F? -101.4215 = 0.00626 x 600 x -27 |
| 14) Room C’s Wall #4, made of Wood across the grain, yellow pine, if the temperature inside is 84°F and outside is 102°F? -38.2281 = 0.00708 x 300 x -18 |
| 15) Room A’s Wall #4, made of Rubber, natural, if the temperature inside is 72°F and outside is 92°F? -18.7818 = 0.00626 x 150 x -20 |
| 16) Room B’s Wall #4, made of Glass, Pearls, dry, if the temperature inside is 85°F and outside is 94°F? -31.2066 = 0.00867 x 400 x -9 |
| 17) Room B’s Wall #2, made of Fiber hardboard, if the temperature inside is 62°F and outside is 44°F? 69.348 = 0.00963 x 400 x 18 |
| 18) Room A’s Wall #2, made of Silica aerogel, if the temperature inside is 61°F and outside is 8°F? 7.6572 = 0.00096 x 150 x 53 |
Heat Pump1) Ammonia, 212oF cycle, 1111 (lb/hr) flowrate, outside is 57°F, inside 70°F? 21375.64 1111 × 1.48 × -13 |
| 2) Ether cycle, 1214 (lb/hr) flowrate, outside is 78°F, inside 89°F? 7050.912 1214 × 0.528 × -11 |
| 3) Hexane cycle, 1307 (lb/hr) flowrate, outside is 56°F, inside 41°F? 10586.7 1307 × 0.54 × 15 |
| 4) Heptane cycle, 628 (lb/hr) flowrate, outside is 83°F, inside 55°F? 9407.44 628 × 0.535 × 28 |
| 5) Glycerine cycle, 1201 (lb/hr) flowrate, outside is 73°F, inside 88°F? 10376.64 1201 × 0.576 × -15 |
| 6) Calcium Chloride cycle, 759 (lb/hr) flowrate, outside is 81°F, inside 55°F? 14405.82 759 × 0.73 × 26 |
| 7) n-Butane, 32oF cycle, 545 (lb/hr) flowrate, outside is 64°F, inside 44°F? 5995 545 × 0.55 × 20 |
| 8) Dodecane cycle, 1343 (lb/hr) flowrate, outside is 41°F, inside 78°F? 26236.848 1343 × 0.528 × -37 |
| 9) Hexane cycle, 719 (lb/hr) flowrate, outside is 44°F, inside 59°F? 5823.9 719 × 0.54 × -15 |
| 10) Propylene Glycol cycle, 894 (lb/hr) flowrate, outside is 85°F, inside 73°F? 6436.8 894 × 0.6 × 12 |
| 11) Alcohol, methyl. 40 – 50oF cycle, 1039 (lb/hr) flowrate, outside is 53°F, inside 76°F? 14099.23 1039 × 0.59 × -23 |
| 12) Alcohol, propyl cycle, 1346 (lb/hr) flowrate, outside is 60°F, inside 67°F? 5370.54 1346 × 0.57 × -7 |
| 13) Water, fresh cycle, 841 (lb/hr) flowrate, outside is 52°F, inside 73°F? 17661 841 × 1 × -21 |
| 14) Aniline cycle, 1188 (lb/hr) flowrate, outside is 87°F, inside 60°F? 16487.064 1188 × 0.514 × 27 |
| 15) Ethylene glycol cycle, 563 (lb/hr) flowrate, outside is 40°F, inside 77°F? 11665.36 563 × 0.56 × -37 |
| 16) Propane, 32oF cycle, 1365 (lb/hr) flowrate, outside is 65°F, inside 45°F? 15724.8 1365 × 0.576 × 20 |
| 17) Dodecane cycle, 789 (lb/hr) flowrate, outside is 70°F, inside 90°F? 8331.84 789 × 0.528 × -20 |
| 18) Ethyl ether cycle, 512 (lb/hr) flowrate, outside is 55°F, inside 52°F? 812.544 512 × 0.529 × 3 |