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# 理工 🔌 🚰 🏭 ⚗️

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last year4 min read

CR1632 battery
RM 2.50 / Reindeer, 3V @ Mr Dollar 20230127

Safety Boots
RM 75 / Safety shoes, DIY homebrand @ Mr DIY Setia Tropika 2023 Jan
RM 93 / Safety joggers, Safetyboy@ Mr DIY Setia Tropika 2023 Jan

電工 🔌

SCADA - BMS

2023
Commercial rate
RM 0.55 / kW
SGD 0.25 / kW

Monthly Maximum Demand (MD) Charge = RM41.82/kW X Maximum kW @ 2023

Commercial Electricity Billing in Singapore is based on 10 minutes interval

PQMS can reflect actual billing within 5% error

Good ground resistance < 5 ohm

Advanced Diploma in Applied Electrical Engineering (Power Systems) 52888WA @ Engineering Institute of Technology, Australia
USD 7000 / online @ 2018

Electric Bill

𓂬óh₂'𓋿uꁻ.𓏷𐌙𑀯ꁻ.𓊀⦠ገ⦠z ⑂ei𐌙ꁻ𓋿Ā：【???? /𓂀 @ 𓆓𐌆𓆓〰】
⌸𐌍⌸ʷ⦠ 𓃻 𓂬⦠𓋿𐌍⦠h₂.𓃾ꁻ ：【⌸₁𓆓éw𓆓 𓊽ꕀ'h₂ǵʰéꁻ𓋿'h₂.h₃o𐌍h₂ /𓂀 《☸︎〰𓆓 𓃱ʰs𓋿𑀯h₂.⑂¸𑀯𓋿𐌈 ϖo𐌈ē𓁶e 𓊽un.⌸íꁻ𐌈ēꕀi 》 @ 𓆓𐌆𓆓〰】【ϖé𐌍🪡⦠ 𓊽ꕀ'h₂ǵʰéꁻ𓋿'h₂.h₃o𐌍h₂ /𓂀 @ 𓆓𐌆𓆓𓆓】
〰ገ.𓃱¸𐌍 𓂬𑀯⌂𓁶.𓃱¸y ：【☸︎90 𓃱ʰ @ 𓆓𐌆𓆓〰〰.𓂀 】【☸︎76 𓃱ʰ @ 𓆓𐌆𓆓〰 𓊽.𓂀 】【𓆓61 𓃱ʰ @ 𓆓𐌆𓆓〰 𓃱.𓂀 】【𓆓69 𓃱ʰ @ 𓆓𐌆𓆓〰 𓉤.𓂀 】【 𓆓35 𓃱ʰ @ 𓆓𐌆𓆓〰 Γ.𓂀 】【 𓆓50 𓃱ʰ @ 𓆓𐌆𓆓〰 𓉭.𓂀 】

Central Utility Building (CUB)

Playlist: Electricity 電學

水處理 🚰

Penang commercial Water Tariff
RM 2.10 / m^3 @ 2023
RM 1.45 / m^3 @ 2022

SAJ Monthly Minimum Charge = RM30 @ 2023

Coagulation (Lt. cogere "to curdle, collect, drive together", co- + agere < *ag-) 混凝
⬇
Flocculation (Lt. floccus, "wool") 絮凝
⬇
Sedimentation 沈降

Malaysia Wastewater Release Requirements

TSS < 100 ppm (general), < 50ppm (water catchment areas)
COD < 80 ppm
Ammoniacal Nitrogen < 10 ppm

COVID前，深圳有300多家水處理公司，越南只有8家。2023年頭，深圳只剩 100多家。

Cooling Tower 冷卻塔 🏭

Danfoss Valve

Automated Spongeball Tube Cleaning

Spongeballs need to be cleaned/replaced every ~ 3 months
Zeta Power can reduce Spongeball cleaning/replacement frequency

Baccomber

MOX - Scaling - 𓂧ou𐌙os 〰anus☸︎enere
⚔️ 𓃱𓋿⦠𐌍Γ𑀯
𓂬óyꕀ𑀯ꁻ.𓃱é𐌍h₁e𐌍 ሠ𐌍: 𓆓.ā.⑂i𓈈𐌈 h₂éд.𓂬h₂𓂋yé𐌈i.eh₂𐌈oꁻ h₁e𓂋i 〰aገi𐌍ą.𓊽𓁶owꕀoꁻ 𓃾ꁻ 𓂬e(y)𐌈 h₁éꁻ𐌈' óynos 𓆓.〰eh₂𐌈u𓁶óꁻ ☸︎e𐌈ḱꁻ𐌍eh₂.𓋾óg.𓃈eh₂
☸︎𑀯𐌍' ☸︎𐌍: 𓆓⦠i𐌍a𐌆- 𓂬īꕀ'yāʔ.𓃈𐌙ós.𓃾𓋿is 𓊽(w)é.𓋾uō.☸︎jō.𓆓em wǣre weh₁ros ϖo𓂋l.ā𓁶's h₁é𐌍 𓆓𐌆𐌆𐌆.ꁻ, h₁epi.úd maist earun 𓌉iꁻꁻos.𓋾auꁻa𐌆 , 𓉭ΓΓꕀ⌂𓁶 ⑂re.𓂬h₂𓂋yé𐌈i.eh₂𐌈oꁻ óynos ⌸leu𐌈a𐌍ą h₂epo 𓂬oꕀϖleh₂𐌙☸︎us.eꁻ

DeCaIon

1 unit can treat 2 tonne of water per hour, usually for small Cooling Water System in Commercial buildings
Electrolysis but most likely will not corrode Cooling Tower because it's a standalone unit
𓂬ou𐌙os.𓋾'𐌙os 𓂬𑀯ꕀ𓉭ʰle𓏷ǵ𓃈ŋō witeros ⚯𐌈ϖ𓌀𓁶

3rd Party facilities management providers: CBRE, Ecolex

Blowdown 丟水
~ 800 - 1000 uS/cm

Cooling Tower chem trtmnt
~ RM 10000+++ / month @ Malaysia 2022

Langelier Saturation Index
Corrosion < -0.3 < LSI < +0.3 < scaling

Scaling ⬆

temperature ⬆
pH ⬆
conductivity ⬆
hardness ⬆

Chlorine corrodes 304 & 316 Steel

Cooling Tower Energy Trade-off Optimization:
Fans vs. Pump

Propeller Fan vs. Blower Fan

Blower Fans require at least twice the applied horsepower of
Propeller Fans to deliver equivalent air flow

A 10% increase in flow will require about 21% greater pressure. A 10% decrease in flow will decrease the required pressure by about 19%.

Manipulation of air rate (and fan power) is a far more energy-effective means of regulating thermal capacity than control of water rate

approximately 1% reduction in Compressor Power for each degree that the Condenser Cooling Water Supply Temperature is lowered

Compressor Power reduction would have begun to exceed Propeller Fan power consumption at or below a wet-bulb temperature of approximately 72°F, whereas equality on Blower Fan operation would not have been reached until about 64°F wet bulb.

Fan Laws

ZPR🗡

Drew Ameroid Acquired Solenis:
Biosperse (corrosive, functions @ acidic pH)

Corrosion Inhibitor 20-30%
Dispersant 0%
Oxi Biocide 100%
Non-oxi Biocide 100%

Cooling Tower BALANCING side Water Flow SLOWER

https://www.quora.com/Why-does-hydrodynamic-resistance-of-liquid-decrease-under-a-strong-electrical-field-voltage

Polarized matter is accelerated in the electric field with a change in the arrangement of free ions around polarized matter as a result of a change in the hydrodynamic resistance in the fluid (Derjaguin et al 1980).

High Voltage Capacitance Field Induce Time-transient Colloid Polarization, Charge (free ions) Rearrangement, structural-conformational changes, ion pairs dissociation

Biofouling Control in Heat Exchangers using High Voltage Based Technology
Fouling Mitigation in Aqueous Systems Using Electrochemical Water Treatment (Zeta Rod Working Principle)

Zeta Power Improves Both Cooling Tower & Chillers Efficiency, 2023-Sep-13

Zeta Power Reduces Scaling & Peels Off Biofilms on Condenser, Lowers Tₗₒᵥᵥ & P꜀ₒₙ, Increases 🏭 Power Generation Efficiency and Reduces Waste Heat & Fuel Consumption (kg/kWh), 2023-Aug-17

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