Hospital Plant and Building Services I

Course Content

Module Content: 

• Refrigeration and Air Conditioning; cooling in hospitals; role of refrigeration in hospitals, applications of refrigeration (vaccines, blood bank, laboratory, pathology, kitchen and food storage)


• .application of physics to basic refrigeration systems; the gas laws (Boyle’s and Charles’ laws, Daltons law of partial pressure), heat transfer mechanisms (conversion of relevant units, sensible and latent heat, temperature/ enthalpy relationship, thermal insulation). 


• refrigeration cycles; vapour compression, absorption, evaporative cooling, pettier effect. refrigerants; fluoro-carbons (cfc), replacement of fluoro-carbons with hydro-carbons, others (carbon dioxide, nitrogen), safe handling (toxicity, cold burns, environmental protection (ozone), recycling fluorocarbons).


• commercial systems; hermetic compressor, semi-hermetic compressor, open type compressors (reciprocating, vane, screw), condensers (natural convection, forced draught), auxiliary components (receivers, filter driers, solenoid valves), automatic control (control devices, wiring circuits, equipment sizing and matching).functions of basic air conditioning systems. 


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• Medical Gases and Vacuum Systems; types of gases; medical gases, compressed air, vacuum, oxygen generators. safety coding; European, American, local (if any).storage methods; cylinder storage layout (bottles and cylinders), storage recommendations. distribution systems; portable, central, pressure regulators and gauges. maintenance and safety; planned preventive maintenance, repair, functional tests, safety

1. Refrigeration and Air Conditioning; safety regulations; protective clothing, refrigerants handling, mechanical/electrical safety. pipe work processes; cutting, debarring, bending, joining: soldering/brazing, flared joints, swaged joints, choice of correct pipe. constructions of vapour compression of refrigeration model; maintenance of commercial refrigeration units, maintenance of central air conditioning system.


2.  
   
   Medical Gases and Vacuum Systems; types of gases; familiarization visits to functional piped gas installations, physical features. model systems; design, install. servicing and maintenance of gas and vacuum installations; medical gas systems, compressed air systems, vacuum systems, testing and safety