Math Blocks — बेरीज, वजाबाकी, गुणाकार, भागाकार
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बेरीज (+) — मासिक EB Bill
ऑफिस floor चे तीन sections:
Section A = 35 लोक
Section B = 28 लोक
Section C = 32 लोक
Total = 35 + 28 + 32 = 95 लोक
BMS उदाहरण — total building energy:
Floor 1 meter = 450 kWh
Floor 2 meter = 380 kWh
Floor 3 meter = 520 kWh
Total = 1,350 kWh → energy dashboard वर दाखवले जाते
वजाबाकी (-) — घराच्या Water Tank चा Consumption
Morning tank level = 85%
Evening tank level = 42%
Consumed today = 85 - 42 = 43%
BMS उदाहरण — filter differential pressure:
Pressure before filter = 250 Pa
Pressure after filter = 180 Pa
Differential = 70 Pa → जर 150 Pa पेक्षा जास्त असेल तर → alarm: filter बदला
गुणाकार (×) — Air Flow Calculation
Air velocity in duct = 4.5 m/s (velocity sensor मधून)
Duct cross-section area = 0.8 m² (fixed value)
Volume flow rate = 4.5 × 0.8 = 3.6 m³/s
BMS हे AHU design नुसार योग्य airflow देत आहे की नाही हे verify करण्यासाठी वापरते.
भागाकार (÷) — Average Zone Temperature
Zone 1 = 23°C, Zone 2 = 25°C, Zone 3 = 24°C, Zone 4 = 26°C
Sum = 98°C
Average = 98 ÷ 4 = 24.5°C → chiller plant optimisation साठी वापरले जाते
एक faulty sensor संपूर्ण system ला चुकीच्या दिशेने नेत नाही. चार sensors चा Average true floor temperature देतो.
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