MechanicalEngineer

  WHAT IS AN AHU? 🤔 An AHU is like a massive air treatment factory hidden in your building's basement or rooftop. It takes polluted outdoor air, cleans it, adjusts the temperature, and pumps it throughout the entire building! Think of it as your building's personal atmosphere creator!  THE JOURNEY OF AIR (Step-by-Step) 🔄 1️⃣ INTAKE - Fresh outside air enters through inlet grills (keeps birds and debris out!) 2️⃣ DAMPERS - Metal sheets open/close to control how much air comes in 3️⃣ FILTRATION - Two-stage filtering process: 🔹 Pre-filters catch big stuff (dust, lint) 🔹 Bag filters trap tiny particles (pollen, fine dust) 4️⃣ TEMPERATURE CONTROL 🌡️ 🔹 Heating coils = Add warmth (using hot water, steam, or electricity) 🔹 Cooling coils = Remove heat (using chilled water) 5️⃣ HUMIDITY ADJUSTMENT 💧 🔹 Too dry? Humidifiers add moisture 🔹 Too humid? Cooling coils remove moisture 6️⃣ FAN POWER - Giant centrifugal fans push the treated air through miles of ductwork! 7️⃣ DIS...

  Behind every safe hospital… there is a compliant and reliable Medical Gas System. Medical Gas Systems are not just pipes hidden above ceilings or behind walls. They are life-support infrastructures delivering oxygen, medical air, vacuum, and other critical gases to operating rooms, ICUs, emergency departments, and patient wards. When designed and installed correctly, they operate silently. When standards are compromised, the consequences can be immediate and critical. Behind the scenes, there is: • Pressure testing and tightness verification • Brazing under nitrogen purge to maintain internal cleanliness • Proper zoning and valve box identification • Alarm panel integration and area monitoring • Flow, purity, and leakage testing • Full compliance with international healthcare standards such as HTM 02-01 Every connection matters. Every outlet matters. Every alarm matters. Because in healthcare construction, Medical Gas Systems are not just part of the MEP scope — they are patient ...

  HVAC System Lifecycle – Explanation This diagram shows the lifecycle of an HVAC system from design to operation. It consists of five main stages: Stage 1: Design Stage In this stage, the system is planned and calculated. Calculate the cooling load (example: 200 TR). Select main equipment: Chiller Pumps AHU (Air Handling Unit) FCU (Fan Coil Units) Design the duct system and determine sizes. Plan chilled water piping and air distribution layout. Goal: Complete the full system design before construction. Stage 2: Approval & Submittal Submit documents such as: Equipment data sheets (AHU, FCU, etc.) Duct layout drawings Material specifications The consultant reviews the documents. After review, drawings and materials are marked APPROVED. Goal: Ensure everything meets project specifications before installation. Stage 3: Installation The system is installed on site: 1. Install chilled water pipes and valves 2. Install AHU units 3. Install main ducts 4. Install dampers (VCD, Fire Dam...