Mechanical Engineering

Faculty

Abhijit Guha

Aditya Bandopadhyay

Ajay Muljibhai Sidpara

Amiya Ranjan Mohanty

Anandaroop Bhattacharya

Anirvan Dasgupta

Archana Arbind

Arun Kumar Samantaray

Asimava Roy Choudhury

Atul Jain

Biswajit Bharat

Cheruvu Siva Kumar

Chirag Deepak Kalelkar

Dhananjay Kumar Srivastava

Dilip Kumar Pratihar

Goutam Chakraborty

Jeevanjyoti Chakraborty

Kingshook Bhattacharyya

Korak Sarkar

Maddali Ramgopal

Mahendra Reddy Vanteru

Manab Kumar Das

Manas Chandra Ray

Mihir Sarangi

Nilanjan Das Chakladar

Partha Pratim Bandyopadhyay

Partha Saha

Poonam Sundriyal

Prasanta Kumar Das

Purbarun Dhar

Rajaram Lakkaraju

Ranjan Bhattacharyya

Sandipan Ghosh Moulic

Sanjay Gupta

Sankha Deb

Sati Nath Bhattacharyya

Siddharth Tamang

Somnath Roy

Soumitra Paul

Sourav Mitra

Subhransu Roy

Sukanta Kumar Dash

Suman Chakraborty

Surjya Kanta Pal

Sushanta Kumar Panda

Venkata Naga Vamsi Munagala

Vikranth Racherla

Maddali Ramgopal

Professor

Mechanical Engineering

+91-3222-282986

ramg@mech.iitkgp.ac.in

Awards and Accolades

Personal Webpage Bio Sketch

Responsibilities

Dean, Faculty of Engineering and Architecture (FoE&A)
Prof-in-Charge, Convocation

Research Areas

To carry out impactful reasearch in the areas of refrigeration and air conditioning and natural circulation loops.

All Publications

No Record Found.

Completed Projects

Principal Investigator

Development of low GWP chemicals and their blends as alternatives to HCFCs and HFCs
Educational Program for Sustainable Heating and Cooling Solutions for India (EduCool)

Co-Principal Investigator

Mine Ventilation and Air Conditioning Studies at Moonidih Mines, Dhanbad, Jharkhand GAYATRI PROJECTS LIMITED

Ph. D. Students

Deen Bandhu

Area of Research: Refrigeration & Air conditioning

Devendra Kumar Sharma

Area of Research: multiphase flow

Katu Yogesh Arun

Area of Research: Refrigeration

Krushna Mohan Das

Area of Research: Refrigeration & Air conditioning

Pegallapati A Saikiran

Area of Research: Refrigeration

Saroj Mandal

Area of Research: Thermo-Fluid-Dynamics

Snehangshu Mondal

Area of Research: Building energy

Sobiya Maqbool

Area of Research: Refrigeration & air conditioning

Sumit Kumar

Area of Research: Solar refrigeration

Venkata Sasidhar Perakam

Area of Research: Refrigeration and Air conditioning

Wasim Ashraf

Area of Research: Solar energy based energy conversion systems

Journal

Thermodynamic studies on a solar assisted transcritical CO2 based tri-generation system with an ejector for dairy applications Vutukuru R., Pegallapati A. S., Ramgopal M. By International Journal of Refrigeration - (Accepted/In-Press)
Performance of a CO2 based transcritical air conditioning system under summer and winter conditions Ramgopal M., Sharma D. K., Pegallapati A. S. By Thermal Science and Engineering Progress 41 1-8 (2023)
The optimum discharge pressure of CO2-based refrigeration cycles operating under subcritical and transcritical conditions Sharma D.K., Hazarika M.M., Ramgopal M. By International Journal of Ambient Energy - (2023)
Role of receiver on the performance of a transcritical CO2 based air-conditioning unit with single-stage and two-stage expansion Hazarika M.M., Ramgopal M., Bhattacharyya S., Doménech R.L. By Science and Technology for the Built Environment 27 1-28 (2021)
Effect of heat transfer area distribution on frosting performance of refrigerator evaporator Pegallapati A.S., Ramgopal M. By International Journal of Heat and Mass Transfer 175 - (2021)
Suitability of various heat transfer fluids for high temperature solar thermal systems Vutukuru R., Pegallapati A. S., Ramgopal M. By Applied Thermal Engineering 159 1-9 (2019)
Analysis of CO2 based refrigeration systems with and without ejector for simultaneous pasteurization and chilling of milk Ahammed M. E., Bhattacharyya S. , Ramgopal M. By International Journal of Refrigeration 95 61-72 (2018)
Experimental studies on an air-cooled natural circulation loop based on supercritical carbon dioxide â Part A: Steady state operation Sadhu S., Ramgopal M., Bhattacharyya S. By Applied Thermal Engineering 133 809-818 (2018)
Analysis of CO2 based refrigeration systems with and without ejector for simultaneous pasteurization and chilling of milk [Analyse des systÃ¨mes frigorifiques au CO2 avec et sans Ã©jecteur pour la pasteurisation et la rÃ©frigÃ©ration simultanÃ©es du lait] Ahammed M.E., Bhattacharyya S., Ramgopal M. By International Journal of Refrigeration 95 61-72 (2018)
Experimental studies on an air-cooled natural circulation loop based on supercritical carbon dioxide â Part B: Transient operation Sadhu S., Ramgopal M., Bhattacharyya S. By Applied Thermal Engineering 133 819-827 (2018)
Experimental studies on an air-cooled natural circulation loop based on supercritical carbon dioxide - Part A: Steady state Operation Sadhu S., Ramgopal M. , Bhattacharyya S. By Applied Thermal Engineering 133 809-818 (2018)
Experimental studies on an air-cooled natural circulation loop based on supercritical carbon dioxide - Part B: Transient Operation Sadhu S., Ramgopal M. , Bhattacharyya S. By Applied Thermal Engineering 133 819-827 (2018)
Thermodynamic Analysis of a Solar Assisted Combined Cooling, Heating and Power System with Diferent Cooling Cycle Confgurations Vutukuru R., Ramgopal M. By INAE Letters 3 107-113 (2018)
Steady state analysis of a high-temperature natural circulation loop based on water-cooled supercritical CO2 Sadhu S., Ramgopal M. , Bhattacharyya S. By ASME Journal of Heat Transfer 140 062502-1-062502 (2018)
Studies on a transcritical R744 based summer air-conditioning unit: Impact of refrigerant charge on system performance Hazarika M. M., Ramgopal M. , Bhattacharyya S. By International Journal of Refrigeration 89 22-39 (2018)
Studies on a transcritical R744 based summer air-conditioning unit: Impact of refrigerant charge on system performance [Ã tudes sur une unitÃ© de conditionnement d'air d'Ã©tÃ© au R744 transcritique: Impact de la charge de frigorigÃ¨ne sur la performance d'un systÃ¨me] Hazarika M.M., Ramgopal M., Bhattacharyya S. By International Journal of Refrigeration 89 22-39 (2018)
Transient analysis of subcritical/supercritical carbon dioxide based natural circulation loop with end heat exchangers: Experimental study Yadav A. K., Ramgopal M. , Bhattacharyya S. By Heat and Mass Transfer - (2017)
Simulation of an adsorbed natural gas storage system for large scale storage Sahoo S., Ramgopal M. By Journal of Energy, Heat and Mass Transfer 38 24-43 (2016)
Experimental studies on an indigenous coconut shell based activated carbon suitable for natural gas storage Ramgopal M., Sahoo S. By Sadhana 41 459-468 (2016)
Optimum Operating Conditions for Subcritical/Supercritical Fluid Based Natural Circulation Loops Yadav A. K., Ramgopal M. , Bhattacharyya S. By ASME Journal of Heat Transfer 138 1-9 (2016)
Effect of Tilt Angle on Subcritical/Supercritical Carbon Dioxide Based Natural Circulation Loop With Isothermal Source and Sink Yadav A. K., Ramgopal M. , Bhattacharyya S. By ASME Journal of Thermal Science and Engineering Applications 8 1-8 (2016)
A simple regression equation for predicting charge characteristics of adsorbed natural gas storage systems, Ramgopal M., Sahoo S. By Applied Thermal Engineering 73 1095-1102 (2015)
A thermal comfort field study of naturally ventilated classrooms in Kharagpur, India. Ramgopal M., Mishra A. K. By Building and Environment 92 396-406 (2015)
A comparison of student performance between conditioned and naturally ventilated classrooms. Ramgopal M., Mishra A. K. By Building and Environment 84 181-188 (2015)
Regression equations for predicting discharge performance of adsorbed natural gas storage systems. Ramgopal M., Sahoo S. By App. Thermal Engineering 86 127-134 (2015)
An adaptive thermal comfort model for the tropical climatic regions of India (K¨oppen climate type A). Ramgopal M., Mishra A. K. By Building and Environment 85 134-143 (2015)
Comparative study on charge-discharge characteristics of different activated carbon based adsorbed natural gas storage systems, , Vol 36, pp. 63 80. Ramgopal M., Sahoo S. By Journal of Energy Heat and Mass Transfer 36 63-80 (2014)
On the suitability of carbon dioxide in forced circulation type secondary loops Ajay Kumar Yadav, Souvik Bhattacharyya, M. Ramgopal By International Journal of Low-Carbon Technologies 9 85-90 (2014)
Theoretical performance of adsorbed natural gas storage systemssubjected to variable charge-discharge conditions Ramgopal M., Sahoo S. By International Journal of Ambient energy 1-12 (2014)
Thermal comfort eld study in undergraduate laboratories An analysis of occupant perceptions. Ramgopal M., Mishra A. K. By Building and Environment 76 62-72 (2014)
Thermal comfort in undergraduate laboratories- A field study in Kharagpur, India. Ramgopal M., Mishra A. K. By Building and Environment 71 223-232 (2014)
Thermodynamic design and simulation of a CO2 based transcritical vapour compression refrigeration system with an ejector Md. Ezaz Ahammed, Souvik Bhattacharyya, M. Ramgopal By International Journal of Refrigeration 45 177-188 (2014)
Transient analysis of subcritical/supercritical carbon dioxide based natural circulation loops with end heat exchangers: Numerical studies Ajay Kumar Yadav, M. Ramgopal and Souvik Bhattacharyya By International Journal of Heat and Mass Transfer 79 24-33 (2014)
Field studies on human thermal comfort - An overview Ramgopal M., Mishra A. K. By Building & Environment 64 94-106 (2013)
Analysis of a metal hydride reactor for hydrogen storage Dattatreya P. S., Ramgopal M. By International Journal of Hydrogen Energy 38 942-951 (2013)
Analysis of a SrCl2-NH3 solid sorption refrigeration system K N. R., Ramgopal M. , Bhattacharyya S. By International Journal of Low-Carbon Technologies 8 - (2013)
Thermodynamic analysis of a sorption refrigeration system with and without internal heat recovery K N. R., Ramgopal M. , Bhattacharyya S. By International Journal of Low-Carbon Technoligies 8 124-133 (2013)
Entropy generation and its relation to heating and cooling requirements of a metal hydride hydrogen storage reactor Dattatreya P. S., Ramgopal M. By International Journal of Hydrogen Energy 38 13687-13696 (2013)
CFD analysis of a CO2 based natural circulation loop with end heat exchangers Ajay Kumar Yadav, M. Ram gopal, Souvik Bhattacharyya By Applied Thermal Engineering 36 288-295 (2012)
CFD analysis of a CO2 based natural circulation loop with end heat exchangers Yadav A. K., Bhattacharyya S. , Ramgopal M. By Applied Thermal Engineering 288-295 (2012)
CO2 based natural circulation loops: new correlations for friction and heat transfer Ajay Kumar Yadav, M. Ramgopal and Souvik Bhattacharyya By International Journal of Heat and Mass Transfer 55 4621-4630 (2012)
Performance of a transcritical CO2 heat pump for simultaneous water cooling and heating J. Sarkar, Souvik Bhattacharyya, and M. Ramgopal By ASHRAE Transactions 116 534-541 (2010)
Heat and mass transfer studies on plate fin-and-elliptical tube type metal hydride reactors Ch. Veerraju, M. Ramgopal By Applied Thermal Engineering 30 673-682 (2010)
Irreversibility minimization of heat exchangers for transcritical CO2 systems J. Sarkar, Souvik Bhattacharyya, and M. Ramgopal By International Journal of Thermal Sciences 48 146-153 (2009)
Development of CLTD values for buildings located in Kolkata, India Karan Bansal, Souma Chowdhury, M. Ramgopal By Applied Thermal Engineering 28 1127-1137 (2008)
Modeling of hot-wall condensers for domestic refrigerators J.K. Gupta, M. Ramgopal By International Journal of Refrigeration 31 979-988 (2008)
Natural refrigerant-based subcritical and transcritical cycles for high temperature heating J. Sarkar, Souvik Bhattacharyya, and M. Ramgopal By International Journal of Refrigeration 30 3-10 (2007)
Prediction of enthalpy of formation and Gibbs energy change in pseudo-binary (Ti-Zr)(Fe-Cr)2 and pseudo-ternary (Ti-Zr)(Fe-Cr)2-H system using extended Miedema model S. Bera, S. Mazumdar, M. Ramgopal,S. Bhattacharyya, I. Manna By Journal of Materials Science 42 3645-3650 (2007)
Experimental studies on a compression-absorption system for heating and cooling applications Prasanta Kumar Satapathy and M. Ramgopal By International Journal of Energy Research DOI: 10.1002/er.1367 - (2007)
A comparative study of R22-E181 and R134a-E181 working pairs for a compression-absorption system for simultaneous heating and cooling applications P.K. Satapathy, M. Ramgopal, R.C. Arora By Journal of Food Engineering 80 939-946 (2007)
Transcritical CO2 Heat Pump Dryer: Part 1. Mathematical Model and Simulation J. Sarkar, Souvik Bhattacharyya, and M. Ramgopal By Drying Technology 24 1583-1591 (2006)
Transcritical CO2 Heat Pump Dryer: Part 2. Validation and Simulation Results J. Sarkar, Souvik Bhattacharyya, and M. Ramgopal By Drying Technology 24 1593-1600 (2006)
Dynamic Performance Analysis of a Compressor Driven Metal Hydride Cooling System Sagnik Mazumdar, M. Ram Gopal, Souvik Bhattacharyya By ASME Journal of Energy Resources Technology 128 35-43 (2006)
Simulation of a transcritical CO2 heat pump cycle for simultaneous cooling and heating applications J. Sarkar, Souvik Bhattacharyya, and M. Ramgopal By International Journal of Refrigeration 29 735-743 (2006)
Transcritical CO2 heat pump systems: exergy analysis including heat transfer and fluid flow effects J. Sarkar, Souvik Bhattacharyya, and M. Ramgopal By Energy Conversion and Management 46 2053-2067 (2005)
Compressor driven metal hydride cooling systems mathematical model and operating characteristics Sagnik Mazumdar, M. Ram Gopal, Souvik Bhattacharyya By International Journal of Refrigeration 28 798-809 (2005)
Studies on a metal hydride based solar water pump Debashis Das,M. Ramgopal By International Journal of Hydrogen Energy 29 103-112 (2004)
Experiments on metal hydride cooling system working with ZrMnFe/MmNi4.5Al0.5 pair M.Ramgopal and S.Srinivasa Murthy By International Journal of Refrigeration 22 137-149 (1999)
Performance of a metal hydride cooling system M.Ramgopal and S.Srinivasa Murthy By International Journal of Refrigeration 18 413-420 (1995)
Prediction of metal hydride heat transformer performance based on heat transfer and reaction kinetics M.Ramgopal and S.Srinivasa Murthy By Industrial & Engineering Chemistry Research 34 2305-2313 (1995)

Article in Periodical

Application of natural convection in refrigeration and air conditioning Katu Y. A., Das K. , Ramgopal M. By ISHRAE Journal 1-10 (2022)
Low refrigerant charge ammonia systems with CO2 based natural circulation secondary loops Ramgopal M. A., Das K. M., Katu Y. A. By ISHRAE Journal - (2021)
Sustainable Thermal Comfort in Buildings Through Prioritizing Occupant Needs Ramgopal M., Mishra A. K. By Energy Future 27-32 (2020)

Conferences

An experimental and computational study of a solar flat plate collector by developing a MATLAB code for water and s-CO2 as the heat transfer fluids Ashraf W., Ramgopal M. , Vanteru M. R. By Two-day International conference on Net-zero emission technologies for sustainable development: challenges and opportunities, IIT(ISM) Dhanbad, (N0ET-2022). - (2022)
Performance analysis of a s-CO2 based solar flat plate collector Ashraf W., Ramgopal M. , Vanteru M. R. By 8th International conference on advances in energy research, IIT Bombay (ICAER-2022) - (2022)
Performance Evaluation of a Hybrid Air Conditioning System based on transcritical CO2 cycle Maqbool S., Ramgopal M. By 19th International Refrigeration and Air Conditioning Conference, 1-8 (2022)
Performance of a CO2 based transcritical air conditioning system under summer and winter conditions Sharma D. K., Pegallapati A. S., Ramgopal M. By 7th National and 1st International Conference on Refrigeration and Air Conditioning - (2022)
Parametric estimation of wall temperature in a parabolic trough solar collector using supercritical co2 as Heat Transfer Fluid for Process Heat Production Vutukuru R., Ramgopal M. By Lecture Notes in Mechanical Engineering 277-284 (2021)
Studies on performance improvement of an r744 transcritical refrigeration system using dedicated mechanical subcooling Hazarika M.M., Ramgopal M., Bhattacharyya S. By Lecture Notes in Mechanical Engineering 33-44 (2021)
Modeling of frosting on fin-and-tube heat exchanger of a domestic refrigerator Pegallapati A.S., Ramgopal M. By Lecture Notes in Mechanical Engineering 235-242 (2021)
Conceptual study of a transportable cooling system based on renewable energy for use on fruits and vegetables Espendalen B.H., Tolstorebrov I., Widell K.N., Ramgopal M., Eikevik T.M. By Refrigeration Science and Technology 2020-August 34-41 (2020)
Adaptive comfort relations and comfort temperature ranges from a field study in undergraduate laboratories Mishra A.K., Ramgopal M. By Proceedings - Windsor Conference 2014: Counting the Cost of Comfort in a Changing World 374-384 (2019)
Modelling and Simulation of a R744 based Air Conditioning Unit Ramgopal M., Bhattacharyya S. , Hazarika M. M. By 16th International Refrigeration and Air Conditioning Conference at Purdue, 1-10 (2016)
Steady state analysis of high temperature supercritical CO2 based natural circulation loop Ramgopal M., Bhattacharyya S. , Sadhu S. By ICEESD 2016 : 18th International Conference on Energy, Environment and Sustainable Development - (2016)

Edited Volume

Preface Ramgopal M., Rout S.K., Sarangi S.K. By Lecture Notes in Mechanical Engineering v-vii (2021)
Preface Ramgopal M., Rout S.K., Sarangi S.K. By Lecture Notes in Mechanical Engineering v-vii (2021)

Performance analysis of a compressor driven metal hydride cooling system S.S. Bedbak and M. Ramgopal By International Journal of Hydrogen Energy 1127-1137 (2005)

Book Chapter/Section

Metal Hydrides: Recent Developments; Eds. Sastri, M.V.C., Viswanathan, B. and Srinivasa Murthy, S. S.Srinivasa Murthy and M.Ramgopal By Metal Hydride Refrigerators, Heat Pumps and Heat Transformers. - (1998)