Vikram Murthy
Director
Univac Environment Systems Private Limited
Arch 11 , Mahalaxmi Bridge
Jacob Circle, Mumbai 400011
India
+91 9821089945
Region: At Large
Honorarium: None
Vikram Murthy has spent 35 years as Owner - Director, of two Companies, inMumbai, India, that Design, Install and Maintain HVAC & R Systems for a largenumber and variety of Commercial, Residential , Educational , Hospitality andHealthcare buildings and special application projects in Industrial Air conditioning &Refrigeration .Prior to that he performed similar assignments for 10 years at two leading IndianCompanies that manufactured HVAC & R equipment under license from Carrier andTrane respectivelyVikram received a Degree in Electrical Engineering from the Indian Institute ofTechnology at Kanpur, India.Vikram and his colleague are representatives for AHRI (Air Conditioning Heating &Refrigeration Institute) in India for Certification of HVAC & R Equipment, assistingIndia Standards Development institutions and liaising with Government Departmentsand Regulators for minimum performance standards of Energy Efficiency and IndoorEnvironment Quality.Another business vertical he heads does Training of Professionals working for largeHVAC & R Companies.Vikram has published several articles in the Indian Journal of Air conditioning &Refrigeration and has authored successive editions of the Indian Weather DataBook.Vikram has lectured and conducted workshops, for decades, on a variety of technicalsubjects related to Building Services across India and overseas and via onlineplatforms.He is a member of several Technical Groups in India and advisor to the Governmentof India’s Ministry for Housing & Urban Development.He has long served on ASHRAE TC 5.2 for Duct Design on multiple sub committees.Vikram has been an ASHRAE Member since 2007 and is a Presidential Member ofISHRAE (Indian Society of Heating Refrigerating & Air conditioning Engineers)
Topic
Air Duct Design and Air Distribution
Air distribution fundamentals for space cooling ; Planning the Zones for Space Cooling and Airdistribution by Ducts ; Duct design by equal friction method using simple software , duct layout guidelines ,tabulation of duct area calculations ; selection of air outlets based on application ; VAV box selection ;measurement of airflow in the occupied zone ; Balance room design conditions as per design , by adjustingair flows / VFDs and Air supply and return outlets ; Designate AHUs based on Air flow as well as Sensibleand Latent Loads of the occupied Zones .
Psychrometrics and Cooling or Heating Load Calculations
Study the Properties of Air and Air Processes like heating. cooling dehumidifying andhumidifying, dew point, enthalpy; Building Envelope and Internal Loads; Tabulation and Calculation of HeatLoad ; Determine Load , Air Quantity and Supply air Temperature ; Tabulate Design Heat Loads ofdesignated Areas ( Sensible Heat / Latent Heat / ADP/ Dehumidified Air Flow ) ; Use Large PsychrometricChart to plot Room Cooling Cycle including Outside Air ; Compare with Design Heat Loads
Passive & Natural Cooling Technologies
A “passive cooling” design involves the use of fenestrations, shading devices, cool roofs andmaterials that ensure the building is designed to be climate responsive, minimizing heat gains and reducingcooling requirements. The heat gain in the building occurs through the building envelope by radiation,conduction, or convection without using any electrical device. Maintaining a comfortable environment withina building in a hot climate is the underlying principle for accomplishing cooling in passive cooling concepts.
Radiant Cooling for Commercial Applications
Principles of Radiant Cooling, Calculation the Radiant load and designing a Radiant coolingsystem ; Practical Installation guidance .
Natural Ventilation for Industrial Application
Local Exhaust Ventilation – Mechanical; Wind Driven Ventilation – Natural – based on windvelocity and wind pressure; Buoyancy Driven Ventilation – Natural -based on the density difference of airbetween the outside & the inside of the building; Natural Ventilation should ensure that the temperature risewithin the Industrial Building/ Shed/ Bays does not exceed 5 Deg C / 9 Deg F
Chilled and Condenser Water Piping Design
Making a single line diagram of water flow rates; Making a plant layout and planning the route ofChilled and Condenser Water piping systems; Calculation of Pipe sizes; selection of Chilled Water andCondenser Water Piping using Equal Friction Method; Use of Tables , Charts and simple Software ;Description and selection of Chilled and Condenser Water fittings ; Valves ,and strainers
Decarbonising Strategies for the Built Environment
Decarbonising Buildings by reducing contributions including strategies to reduce Carbonemissions caused by Cooling Buildings and the Cold Chain; lighting , vertical transportation , pumping ,security systems and plug loads ;
Chiller and Air Handling Unit selection and balancing
Selection of AHUs based on Cooling / Heating Load calculations ; selection of Chillers based onapplication and operation ; Types of Chiller compressor systems - Scroll/screw/centrifugal ; Water cooledand air cooled Chillers ;Chiller operation sequence and part load operation ; Selection of Chiller, pump ,cooling tower , air handling unit fans , cooling coils ;; Balancing Water systems ; Calculate operatingefficiencies of Pumps / Cooling Towers / AHUs ; Calculation of System efficiency