Natural draft and forced draft cooling systems.

Natural draft and forced draft cooling systems

Natural draft and forced draft cooling systems are two types of cooling systems that are commonly used in industrial and power plants. Both systems are used to remove excess heat from equipment and processes, but they differ in the way that air is circulated.

Natural Draft Cooling System:

A natural draft cooling system uses the natural convection currents created by the difference in temperature between the hot exhaust gases and the surrounding atmosphere to circulate air through the cooling system. The warm air rises, and the cooler air is drawn in from below to replace it. The cooling tower is typically tall and has a large diameter, which allows for maximum air circulation. This type of cooling system is less energy-efficient than forced draft cooling but is less expensive to operate.

Forced Draft Cooling System:

A forced draft cooling system uses fans or blowers to force air through the cooling system. The fans or blowers create a positive pressure that forces the air to move through the system. The cooling tower is typically smaller in diameter and has a taller height than a natural draft cooling tower. This type of cooling system is more energy-efficient than natural draft cooling but is more expensive to operate. The choice between natural draft and forced draft cooling systems depends on several factors, including the size of the system, the ambient conditions, and the required efficiency. Natural draft cooling systems are typically used in smaller systems, while forced draft cooling systems are used in larger industrial and power plant applications. The type of cooling system used will have a significant impact on the energy consumption and operating costs of the plant.

Comments

Compressor,and its types:-Hermetically Sealed Compressors and Semi-Hermetically Sealed Compressors.

Compressors are mechanical devices that are used to increase the pressure of a gas or vapor by reducing its volume. There are various types of compressors available in the market, each with its own unique features and advantages. Two of the most commonly used compressors are Hermetically sealed and Semihermetically sealed compressors. Hermetically Sealed Compressors:- A hermetically sealed compressor is a type of compressor that is completely sealed and is designed for small applications like refrigeration and air conditioning units. The hermetic compressor is called so because its motor and compressor are placed in a single sealed casing. The casing is welded or brazed shut, which prevents any gas or liquid from leaking in or out of the compressor. The hermetically sealed compressor is also known as a ‘sealed c...

Subject:-Measurement & Metrology, Angle measuring instruments:-Sine bar , Clinometer , Bevel Protector.

Angle measuring instrument:- → The instrument which is used for measurement the slope of any object surface is called angle measuring instrument . →T here are 3 types of angle measuring instrument. ( I)Sine bar ( II)Clinometer ( III)Bevel Protector SINE BAR:- → sine bar is an angle-measuring instrument that measures slope of any object with the help of slip gases and a dial indicator. → it is a steel piece mounted over two hardened steel cylindrical roller having equal diameter. → To make it lighter in weight small holes are drilled along steel piece. Principle:- →The working of sine bar is based on the princiople of trigonometry. In this one roller is placed over combination of slip gauges and another is placed over table surfaces. →If H is the height of slip gauge c...

Limit Gauges:-Plug Gauges and its types ,Snap Gauges and its types, Ring Gauge, Radius & Fillet Gauge, Filler Gauge

Limit Gauges:- → Limit gauges are non-recording type inspection devices which is used to check the dimension of the product produced lies within the permissible limit or not. → if on inspection the dimension of the product produced lies within the permissible limit then the product is accepted. → but if on inspection the dimension of the product produced does not lie within the permissible limit then the product is rejected. →I n the manufacturing industry the product produced is either of two natures either it will be a shaft or it will be a hole. we have to take the measurement to check its accuracy. but when the production rate is high we cannot choose the method of measurement which is time-consuming →Therefore to check the manufactured component accuracy within less time We use a special type of inspection device called limit gauges →limit gauges are non-recording type inspection devices i.e. they do not give the reading of the dimension ...

Mechanical learning

Search This Blog