Vapor-compression refrigeration system

Assignment Help Mechanical Engineering

Reference no: EM13949846

A vapor-compression refrigeration system, using ammonia as the working fluid, has evaporator and condenser pressures of 30 and 200 lbf/in.2, respectively. The refrigerant passes through each heat exchanger with a negligible pressure drop. At the inlet and exit of the compressor, the temperatures are 108F and 3008F, respectively. The heat transfer rate from the working fluid passing through the condenser is 50,000 Btu/h, and liquid exits at 200 lbf/in.2, 908F. If the compressor operates adiabatically, determine

(a) the compressor power input, in hp.

(b) the coefficient of performance.

Reference no: EM13949846

Questions Cloud

Vapor-compression refrigeration system : A vapor-compression refrigeration system with a capacity of 10 tons has superheated Refrigerant 134a vapor entering the compressor at 158C, 4 bar, and exiting at 12 bar. The compression process can be modeled by py1.01 5 constant.

What are the positive and negative effects : Should cartels be allowed to exist? If they should not be allowed to exist, how can they be effectively prohibited?

Coefficient of performance of a carnot refrigeration : The refrigerating efficiency is defined as the ratio of the cycle coefficient of performance to the coefficient of performance of a Carnot refrigeration cycle operating between thermal reservoirs at the ambient temperature and the temperature of t..

What is the cost of capital for the preferred stock : The preferred stock of Julian Industries sells for S36 and pays $3.00 in dividends. The net price of the security after issuance costs is $32.50. What is the cost of capital for the preferred stock

Vapor-compression refrigeration system : A vapor-compression refrigeration system, using ammonia as the working fluid, has evaporator and condenser pressures of 30 and 200 lbf/in.2, respectively. The refrigerant passes through each heat exchanger with a negligible pressure drop.

Construct a list of potential entities. : create an IDEF1X diagram that shows only entities and relationships. Name each relationship and specify its cardinalities. Justify the cardinality decisions.

Prospect corporation, your new audit client : (1) Sales. Salesclerks prepare sales invoices in triplicate. The original and second copy are presented to the cashier, and the third copy is retained by the salesclerk in the sales book. When the sale is for cash, the customer pays the salesclerk..

Compressor of an ideal vapor-compression : Refrigerant 134a enters the compressor of an ideal vapor-compression refrigeration cycle as saturated vapor at 2108F. The condenser pressure is 160 lbf/in.2

Problem regarding the saturated vapor : An ideal vapor-compression refrigeration cycle, with ammonia as the working fluid, has an evaporator temperature of 2208C and a condenser pressure of 12 bar. Saturated vapor enters the compressor, and saturated liquid exits the condenser. The mas..

User Account

All Pages