A text book of refrigerarion and air-conditioning by R S Khurmi. Refrigeration and airconditionin by rs khurmi. Onkar Nath. Engineering. Textbook of Refrigeration and Air-conditioning has ratings and 8 reviews. For the students of B.E.;UPSC(Engg. Services); UPSC (Civil Services); Secti. I found a Substitute for A Textbook of Refrigeration and Air Conditioning by R. S. Khurmi. This Substitute has all the Similar Topics Covered. Please get it from.

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The water has the ability to absorb very large quantities of ammonia vapour and the solution conditioninv formed, ts known as iff fiat-ammonia The absorption of ammonia vapour in water Iowcts the pressure in the absorber which in turn draws more ammonia vapour from the evaporator and thus raises the temperature of solution.

Ankit Kumar rated it it was ok Oct 04, Rsfrigeration the power required to drive the plant. When the switch is closed for a certain period of time, then the current will flow through the battery and the resistance, as a result the resistance becomes warmer This clearly shows that the system battery has interaction with the surroundings, in other words, the energy transfer electrical energy has taken place between the system and the surroundings because of potential difference not die temperature.

A centrifugal blower is installed behind the cooling coil which sends cool air in the room, A filter is installed on the fresh air entering side of the evaporator to remove any dirt from the air. The conference has been entrusted with the task of prescribing definitions for various units of weights and measures, which are the very basis of science and technology today.

This air is rammed isentropically to a pressure of LI www.

Textbook of Refrigeration and Air Conditioning

We know that the efficiency or coefficient of performance of an engine. The cooling and dehumidificalion process is shown in Fig. The T-s diagram for the reduced ambient air cycle cooling system is shown in Fig.


The isentropic compression of air in the main compressor is represented refriheration the line 2 f – 3. The ram air pressure and temperature are 1.

The variation of the volume and pressure of the system as it expands to final state 2, is drawn on the pressure-volume diagram briefly called p-v diagram as shown in Fig. C The air from the evaporator i.

Textbook of Refrigeration and Air Conditioning : R. S. Khurmi :

Temperature of Ihe gas. Now from point 1, draw a constant entropy line intersecting the horizontal condenser pressure line at point 2, as shown in Fig. May 29, Teja rated it did not like it.

If the compression index for the main compressor conditionihg 1. It znd usually represented by U. The relevant properties of methyl chloride are as follows: The condktioning temperature to which moist air can be cooled under ideal conditions in a spray washer is a dew point temperature of inlet air ft wet bulb temperature of inlet air c water inlet temperature d water outlet temperature www.

But sometimes a bigger unit of pressure known as bar is used, such that. According to the arrangement of equipment a Unitary air conditioning system, and 5 Central air conditioning system.

Compound Vapour Compression Refrigeration Systems 5. Thus the use of Hash chamber has texxtbook effect on the thermodynamic cycle. Nagor, Zone 1, Bhopal – But in actual practice, it is not necessary’ to express all lengths in metres, all masses in kilograms and all limes in seconds. May 07, Rohit Raizada rated it really liked it.

Textbook of Refrigeration and Air-conditioning (M.E.)

The process 3’—4 represents the cooling by ram air in the first heat exchanger. Find the tonnage of ihe condtioning which runs for 18 hours per day.

The textbokk is a form of transit energy which can be identified only when it crosses the boundary of a system. Mass of motive steam required per hour per tonne of refrigeration We know that mass of motive steam required per hour per tonne of refrigeration Q m.


We know that the refrigeratipn of air supplied to the cabin. If the compressor is supplied with liquid along with vapour refrigerant. We know that the mass of refrigerant required to be circulated at point 10 through the first evaporator or the lowest temperature evaporator EP r www. Thus in an open cycle system, a drier should be used, 2. Now the refrigerants leaving the back pressure valves at points 6 and 9 are mixed together with the refrigerant leaving the First evaporator at point II, at pressure p K which is the suction pressure of the compressor.

The coefficient of performance is the reciprocal of the efficiency i f. Neglecting losses and clearance, calculate the net work done per minute and the coefficient of performance.

Full text of “A Textbook Of Refrigeration And Air Conditioning By R. S. Khurmi And J. K Gupta”

We know that refrigeragion flow rate of air. In a four digit number, the space is not required unless the four digit number is used in a column of numbers with five or more digits.

The work of the cooling turbine is used to drive the cooling fan through reduction gears which draws cooling air from the heat exchanger. Explain the working of this cycle. In other words, the entire volume of the refrigerant, in the compressor cylinder, is compressed by the inward stroke of the piston.