Devices | Engineering Notes India

Condensers: Necessity, Classification, Sources of Air, Vacuum, Dalton’s Law, Efficiency and Functions

In this article we will discuss about:- 1. Introduction- Necessity of Condensers 2. Classification of Steam Condensers 3. Sources of Air 4. Condenser Vacuum 5. Dalton's Law of Partial Pressure 6. Vacuum Efficiency 7. Condenser Efficiency 8. Cooling Water Requirements 9. Capacity of Air Extraction Pumps 10. Function of Cooling Towers. Contents: Introduction- Necessity of Condensers Classification of Steam Condensers [...]

By Mugdha P|2018-08-01T11:32:17+05:30August 1, 2018|Condensers|Comments Off

Air Compressor: Meaning, Classification, Single Stage, Work Input, Efficiency and Free Air Delivery

In this article we will discuss about:- 1. Introduction to Air Compressor 2. Classification of Air Compressor 3. Single Stage/Single Acting Reciprocating Air Compressor 4. Work Input 5. Efficiency 6. Actual Indicator Diagram 7. Free Air Delivery (FAD) 8. Multistage Air Compressor 9. Capacity Control. Contents: Introduction to Air Compressor Classification of Air Compressor Single Stage/Single Acting Reciprocating Air Compressor [...]

By Mugdha P|2018-08-01T11:32:17+05:30August 1, 2018|Air Compressor|Comments Off

Gas Turbines: Meaning, Classification, Working, Advantages & Disadvantages | Thermodynamics

In this article we will discuss about:- 1. Meaning of Gas Turbine 2. Classification of Gas Turbines 3. Working of Simple, Constant Pressure, Open-Cycle Gas Turbine 4. Work Ratio of Gas Turbine 5. Concept of Maximum Pressure Ratio and Optimum Pressure Ratio 6. Actual Gas-Turbine Cycle with Fluid Friction 7. Simple Closed-Cycle Gas Turbine and Few Other Details. Contents: Meaning [...]

By Mugdha P|2018-08-01T11:32:16+05:30August 1, 2018|Gas Turbines|Comments Off

Axial Flow Compressor: Construction, Operation, Velocity Triangle and Efficiency | Thermodynamics

In this article we will discuss about:- 1. Introduction to Axial Flow Compressor 2. Construction and Principle of Operation 3. Velocity Triangle 4. Degree of Reaction 5. Efficiency 6. Losses 7. Performance. Contents: Introduction to Axial Flow Compressor Construction and Principle of Operation of Axial Flow Compressor Velocity Triangle of Axial Flow Compressors Degree of Reaction of Axial Flow Compressor [...]

By Mugdha P|2018-08-01T11:32:15+05:30July 29, 2018|Axial Flow Compressor|Comments Off

Television and Artificial Satellite (With Block Diagram) | Electronics

Throughout the history of human civilization, man has contrived in different ways to extend his sense of sight. The microscope, the telescope and the camera were important landmarks along the way. These inventions were based upon an important characteristic of the human eye known as 'persistence of vision'. Television is one of those miracles which enables us to view a [...]

By R Chaurasiya|2018-05-16T06:23:19+05:30May 16, 2018|Artificial Satellite|Comments Off

Centrifugal Pump: Selection and Installation | Water Lifting Devices | Geography

In this article we will discuss about:- 1. Total Head in a Centrifugal Pump Installation 2. Net Positive Suction Head 3. Power Requirements of Pumping 4. Selection of Centrifugal Pumps 5. Specific Speed of Centrifugal Pumps 6. Affinity Laws 7. Installation of Centrifugal Pumps 8. Operation of Centrifugal Pumps 9. Common Troubles of Centrifugal Pumps Installation. Contents: Total Head in [...]

By R Bhagat|2018-05-15T06:18:36+05:30May 15, 2018|Centrifugal Pump|Comments Off

Fuse: Types, Merits and Demerits | Electrical Engineering

In this article we will discuss about:- 1. Meaning of Fuse 2. Metals and Alloys Used for Fuse 3. Types 4. Merits 5. Demerits. Meaning of Fuse: An electric circuit is designed to carry a definite amount of current. If a much greater current passes through the circuit, there may be serious damages. To check it, a length of a [...]

By Roshni|2018-04-21T07:54:26+05:30April 21, 2018|Fuse|Comments Off

Comparators: General Equation and Analysis | Electrical Engineering

The application of a particular relay is governed by its characteristics and other factors such as accuracy, operating time, reliability, burden, method of setting adjustment etc. The function of a protective relay is to sense any abnormal condition in the system and send a signal to the breaker which in turn isolates the faulty section of the feeder from the [...]

By Shanaya|2018-03-07T08:16:34+05:30March 7, 2018|Comparators|Comments Off

Amplitude Comparators and Its Types | Devices | Electrical Engineering

Amplitude comparator compares the amplitudes of two (or more) input quantities. The phase angle between the quantities under comparison (inputs) is not recognized or noticed by the amplitude comparator. If the two input signals are S1 and S2 (say S1 the operating and S2 restraining), the amplitude comparator gives positive output only if – S2/S1 < K. The function is [...]

By Shanaya|2018-03-07T08:16:34+05:30March 7, 2018|Comparators|Comments Off

Classification of Overcurrent Relays | Devices | Electrical Engineering

Depending upon the time of operation, overcurrent relays may be categorized as: 1. Instantaneous Overcurrent Relay 2. Inverse-Time Overcurrent Relay 3. Definite Time Overcurrent Relay 4. Inverse Definite Minimum Time (IDMT) Relays 5. Very Inverse Relay 6. Extremely Inverse Relay. 1. Instantaneous Overcurrent Relay: An instantaneous overcurrent relay is one in which no intentional time delay is provided for operation. [...]

By Shanaya|2018-03-07T08:16:34+05:30March 7, 2018|Relays|Comments Off

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