Ohm's Power law equation. Thanks for read if you want to anything related to HVAC and Mechanical Engineering then comments and subs...

Ohm's Law Ohm's law shows a linear relationship between the voltage and the current in an electrical circuit. The resistor's...

Chillers often represent a plant's single largest electric load. But factor in fouled tubes, leaking refrigerant, or myriad other facto...

Wind Power Plant Working principle By Mohammad Imran HVAC engineer. Wind energy is an indirect form of solar energy since wind is produced...

Energy Efficiency Ratio EER The Energy Efficiency Ratio - EER - is a term generally used to define cooling energy efficiency of unitary air-...

Determining Duct Air Flow in CFM using to Pressure Sensor by Imran To calculate Air Flow in Cubic Feet per Minute (CFM), determine the Fl...

Chemical treatment (or dosing): Proprietary (like NALCOOL) or generic chemicals (like Sodium Silicate, Sodium Nitrite, and Sodium Sulfi...

direct expansion air conditioning unit, also called a DX unit, cools indoor air using a condensed refrigerant liquid. It is the type of air ...

Common causes of Condenser Fan Motor Overheating? There are a few likely causes that are to blame when a condenser fan motor overheats. Th...

Today’s residential and commercial HVAC systems have greatly improved options for controlling temperature and humidity settings. SMART T...

Coefficient of Performance - COP The Coefficient of Performance - COP - is the basic parameter used to report efficiency of refrigerant bas...

How to calculate the efficiency of a chille How to calculate the efficiency of a chiller. Chillers are one of the largest energy consum...

Vapour Compression Refrigeration Systems: In a vapour compression refrigeration system, refrigeration is obtained as the refrigerant eva...

WHAT IS PERSONAL PROTECTIVE EQUIPMENT (PPE)? PPE means personal protective equipment or equipment you use to guarantee your (own) safety. U...

In its simplest form, a PCB is a plastic board reinforced with glass. Attached to this board are copper lines and pads which connect togethe...

Fluidized-Bed Heat Exchangers. In a fluidized-bed heat exchanger, one side of a two-fluid exchanger is immersed in a bed of finely divi...

Physical Properties of Refrigerants R-417A Environmental Classification HFC Molecular Weight 106.8 Bubble Point (1 atm, ºC) -39.1 Critic...

Daikin ENVi Thermostat Installation ManualStep . Position and Wire the DPCA The Daikin Power and Communication Adapter (DPCA) provides a...

PRE-FILTER FUNCTIONS Pre-filters are a nice feature to have in your air purifier. It also expands the lifetime of HEPA and activated car...

Screw compressor By Imran How does a screw compressor work? Here we will look a bit closer at the screw air compressor technology. Wha...

SCROLL COMPRESSOR A scroll compressor is a specially designed compressor that works in a circular motion, as opposed to up-and-down piston a...

CALCULATING RELATIVE HUMIDITY By Mohammad Imran Calculating the RH requires the correct equation(s). The RH is the amount of moistu...

Symptoms of brain fever: 1. Pain in the heart 2. Feeling weak in the muscles 3. Haemiparesis - Feeling weakness in all outer organs...

thermostatic expansion valve or TXV — can cause a number of symptoms in a system. Here are the ways a TXV can become restricted: Wax bui...

Troubleshooting an Overheating Compressor Here are a few tips you can try to find the issue before contacting a professional: High head...

A scroll compressor is a specially designed compressor that works in a circular motion, as opposed to up-and-down piston action. ...

Difference Between Star and Delta Connection are as The terminals of the three branches are connected to a common point. The n...

Chemical fluid leakage How To Recognise Five of the Most Common PCB FailuresThe presence of any chemical fluid that has leaked from a compo...

The most common signs and symptoms of heat exhaustion include: Confusion Dark-colored urine (a sign of dehydration) Dizziness Fainting Fat...

For an air conditioner to cool a room or building its output must be greater than the heat gain. It is important before purchasing an air ...

1.Question 1. What Is Local Comfort Cooling System? Answer : They may be integrated, with heating, ventilation and air conditioning provide...

Some items are hazardous by nature, while others only become hazardous if used inappropriately or carelessly. Often, accidents don’t just ...

The oil return in refrigeration systems is of key importance for the service life of the compressor and thus for a secure constant supply of...

OIL FAILURE SWITCH An oil failure switch is provided with high-speed compressors. This differential pressure switch is designed to preven...

HIGH-PRESSURE CUTOUT SWITCH A high-pressure cutout switch is connected to the compressor discharge line to protect the high-pressure side...

LOW-PRESSURE CUTOUT SWITCH The low-pressure cutout switch is also known as a suction pressure control switch. It is the control that causes ...

load or heat gain A building or room gains heat from many sources. Inside occupants, computers, copiers, machinery, and lighting all produce...

A building management system can add significant operating costs savings to your company, while providing security to your property, resourc...