HVAC TECH

Condenser Condenser is a device or unit used to condense a gaseous substance into a liquid state through cooling.In so doing,latent heat is released by substance and transferred to the surrounding environment.Condenser are used for efficient heat rejection in many industries.condenser comes in many sizes ranging from small to large industrial condenser.   Types of Condenser Condenser has have three type on the basis of heat exchange.     1)Air cooled.     2)Water cooled     3) Evaporative Condenser have two more types on the basis of design    1)Shell and tube condenser    2)Tube in Tube condenser Air cooled Condenser:- In this type of Condenser air is used as a cooling substance for condenser.Refrigerant pass through the tube.Tube is designed with the fins surrounding tube which allow more heat transfer because the fins hold the air more time around the tube.Becouse of that heat transfer done more effectively. Fans are provided on ...

Pumps   Pump is a device that moves the fluid some times slurry by the mechanical action,typically converted from electrical energy to hydraulic energy. Pumps can be classified into two major group by there action of moving fluid Direct lift and displacement. Types of Pumps  The pumps are mainly classified in two basic types Dynamic pumps and positive displacement pumps 1)Dynamic Pumps:- Dynamic pumps classified in lot of types but we are going to discus some of them like centrifugal pumps. Centrifugal Pumps:-These types of Pumps are most commonly used in worldwide.The working is simple,described well and carefully tested.This pumps are strong,efficient and cheap to make.Centrifugal pumps are transport fluid by conversion of rotating energy into kinetic energy of fluid. 2) Positive Displacement pumps:- Positive Displacement pumps classified into lots of types but we are going to discuss about Diaphragm pump. Diaphragm Pump:-These pumps are also known as a AODD(Air operated Dou...

Horsepower   From your car, to your well motor power of almost every engine you deal with are calculated in horsepower.None of this things seemingly nothing to do with horse,so where did that measurement come from?   Well,actually horses.In the early days of steam engine inventor and engineer James Watt made some significant improvement to the Newcomen steam engine and attempted to market and sell his new version.This was easy enough when watt dealing with the people who already have a Newcomen engine and could directly compare engine output of old engine with his new version.   Some potential customers didn't have a steam engine at all yet,were they are still using draft horses to move there weight and power machinery.He deeded a way to explain his engine in a way that these people would understand.   He worked out the idea of horsepower while watching the some horses lift coal at mine and he also watched a horse turn a mill.He determined that the horse can do a 33,...

ISO classes for Cleanrooms Cleanrooms and related controlled environments are designed to manage airborne contamination to levels suitable for activities sensitive to such contamination. Industries that benefit from this level of control include aerospace, microelectronics, pharmaceuticals, medical devices, healthcare, and food production. This section of ISO 14644 outlines the testing methods that can be employed to characterize a cleanroom, as detailed in other sections of ISO 14644. NOTE: Not all testing procedures for cleanroom parameters are included in this section of ISO 14644. Additional procedures and equipment for characterizing other relevant parameters in cleanrooms and clean zones tailored for specific products or processes are addressed in other documents produced by ISO/TC 209. Examples include procedures for controlling and measuring viable materials (ISO 14698), assessing cleanroom functionality (ISO 14644-4), and testing separations. ISO Clean room classification base...

Purified Water Generation     Purified Water is very important part of Pharma industry used for manufacturing of tablets.There are three stages of Purified Water Generation Plant.    Raw water from IDC received at company Raw water storage tank.From tank water transferred to PWG plant through centrifugal pumps while transferring water pass through sand filter. Sand filter removes impurities,dust,durt partical from water.In PWG plant water pass through 5micron water filter and stored at storage tank.    In first stage of PWG water from storage tank pass through softener plant.In softener plant hardness of water reduced also magnesium available in water removed.After softener plant NaCl and NaOH solution added in water.NaCL for jurms killing and NaOH to reduce pH of water.Then it pass through the Ultra filter in ultra filter colliden silica removed.The filter size of ultra filter is 0.1 micron to 0.01 micron.After ultra filter water stored in primary water st...

Partical Count Test Viable Particle Count:- ISO has made classifications for clean-room as it mentioned in the ISO guidelines ISO 14644-1 . As per that classification Particle count in clean room are achieved as per classification of the area. ISO has defined 9 class standards for classification of clean rooms. In every class has it's fixed defined limit for different sizes of particle.   Particle count test done in two condition at REST and at OPERATION. For particle counting particle counter Machine is used which gives the printed record of particle present in the area.This particle count test done at 4 to 5 location in one room and varies depending on the area of room. Length of tubing used for partial counter machine should not be more than 1 meter.  Rest condition:- In this condition test done in a cleanroom which is not having any production activity or not any person inside the cleanroom who's doing some work. Running Condition:- In this  condition partical count t...