Lecturer:Dr. Esam Mejbil Abid Babylon University
Subject:Air Conditioning and Refrigeration College of Engineering
Year: Fourth B.Sc. Department of Mechanical Engineering
Multi-Stage Vapour Compression Refrigeration
Example-1
Two stage compression system with water intercooler uses R-134a as shown in Figure-1. The evaporating temperature is -25 oC and condensing temperature 47 oC. The refrigeration capacity is 8 TR and the compression is adiabatic reversible process. The refrigerant leaves the water intercooler at 14 oC. Estimate the refrigerant mass flow rate, work done of each compressor, condenser heat load, and coefficient of performance. Also re-estimate the requirements if the compression is one stage.
Example -2
Considering the data in Example -1 and flash intercooler was used as shown in Figure-2. The refrigerant leaves the flash intercooler dry and saturated. Estimate the refrigerant mass flow rate, work done of each compressor, condenser heat load, and coefficient of performance
المادة المعروضة اعلاه هي مدخل الى المحاضرة المرفوعة بواسطة استاذ(ة) المادة . وقد تبدو لك غير متكاملة . حيث يضع استاذ المادة في بعض الاحيان فقط الجزء الاول من المحاضرة من اجل الاطلاع على ما ستقوم بتحميله لاحقا . في نظام التعليم الالكتروني نوفر هذه الخدمة لكي نبقيك على اطلاع حول محتوى الملف الذي ستقوم بتحميله .