Category: Refrigeration And Air Conditioning

An ideal air refrigeration system is assumed to work on reversed Carnot cycle.

Continue reading What is COP of Refrigerator? Theory, Formula & Derivation

The differences between a refrigerator and a heat pump are as follows,

Continue reading Difference between Refrigerator and Heat Pump

The ideal reversed Carnot cycle is modified to obtain Bell Coleman cycle. This is done to improve the COP of reversed Carnot cycle either by reducing the temperature of hot body or increasing the temperature of cold body. The figure 1 shows the components of Bell Coleman cycle.

Figure 1: Bell Coleman Cycle.

Continue reading What is Bell Coleman Cycle? Process, Derivation, Diagram & COP

Carnot engine cycle is a theoretical engine cycle it doesn’t have any practical applications. But it helps in determining the theoretical efficiency of practical engines while designing. Continue reading What is a Carnot Engine? Derivation, Diagram & Efficiency

The air cooler works on the principle of refrigerant. The refrigeration used is simple water. Small-sized coolers are called ‘room coolers’, which use blowers. Big size coolers are called ‘desert coolers’, which use exhaust fans. Continue reading What is an Air Cooler? Working Principle, Parts & Diagram

In India, however, the specified voltage for domestic use is 230 V but more commonly this voltage fluctuates. It is sometimes very low or very high. Continue reading What is Fridge Voltage Stabilizer (Refrigerator Stabilizer)? Working & Block Diagram

Continue reading What is Axial Flow Fan? Working, Types, Diagram & Advantages

Function: Water coolers are used to give cold water having temperature, around 8°C to 16°C for drinking purpose.

Types of Water Cooler

The three types of water coolers are

1. Storage type
2. Instantaneous type
3. Bottle type.

Continue reading What is Water Cooler? Working, Diagram & Types

Ice plant consists of two circuits: Primary circuit and Secondary circuit.

In primary circuit, ammonia is used as refrigerant, whereas in case of secondary circuit, brine solution is used as refrigerant. As ammonia (primary refrigerant) is toxic in nature, so it should not come in direct contact with the water. Therefore, a secondary refrigerant (brine solution) is used. This brine solution is circulated around the galvanized iron cans containing the water circulating with the help of brine pump. Brine solution takes the heat from the water to convert it into ice. This heat absorbed by brine solution is ejected to primary refrigerant (ammonia) in the heat exchanger.

Figure 1: Ice Plant.

Continue reading What is Ice PIant? Working, Diagram & Construction

Cold storage is a building designed to store certain goods, like foods of perishable nature. The inside space of cold storage is maintained at required temperature and relative humidity. Continue reading What is Cold Storage? Working, Diagram, Construction & Advantages