
Refrigeration and Air Conditioning / Manohar Prasad / New Age.Refrigeration and Air Conditioning / CP Arora / TMH.
A Course in Refrigeration and Air conditioning / SC Arora & Domkundwar / Dhanpatrai. heat pump – heat sources – different heat pump circuits. Requirements of human comfort and concept of effective temperature- comfort chart –comfort air conditioning – requirements of industrial air conditioning, air conditioning load calculations.ĪIR CONDITIONING SYSTEMS: Classification of equipment, cooling, heating humidification and dehumidification, filters, grills and registers, fans and blowers. INTRODUCTION TO AIR CONDITIONING: Psychometric properties & processes – characterization of sensible and latent heat loads –– need for ventilation, consideration of infiltration – load concepts of RSHF, GSHF- problems, concept of ESHF and ADP temperature. principle and operation of (i) thermoelectric refrigerator (ii) vortex tube. STEAM JET REFRIGERATION SYSTEM: Working Principle and basic components. VAPOR ABSORPTION SYSTEM: Calculation of maximum COP – description and working of NH3 – water system and Li Br –water ( Two shell & Four shell) System, principle of operation three fluid absorption system, salient features.
condensers – classification – working principles evaporators – classification – working principles expansion devices – types – working principles VCR SYSTEM COMPONENTS: Compressors – general classification – comparison – advantages and disadvantages. REFRIGERANTS – Desirable properties – classification – refrigerants used – nomenclature – ozone depletion – global warming VAPOUR COMPRESSION REFRIGERATION: Working principle and essential components of the plant – simple vapour compression refrigeration cycle – COP – representation of cycle on T-S and p-h charts – effect of sub cooling and super heating – cycle analysis – actual cycle influence of various parameters on system performance – use of p-h charts – numerical problems.