HVAC Journal Database

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II. Listing By Authors:	[ A • B • C • D • H • I • J • K • L • M • N • P • R • S • T • W ]
Dr. Agarwal, R S Practical Considerations when Switching over to HFC-134a & HC from CFC-12 2004 July-September With the phase out of CFC-12 all OEMs in India have had to change over to non-CFC refrigerants. Substitutes like HFC-134a and HC blends have now been adopted and this article compares the performance of these refrigerants with CFC-12 and the practical issues involved with the use. Armstrong, Ian Refrigeration Systems for European Supermarkets 2005 October-December How refrigeration systems for supermarkets have evolved over the years in Europe will give engineers in India an idea of what to expect in the new supermarkets that will soon come to this country as well. [ top]
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Baliga, B Gautham Ducted Splits for Special Applications 2005 July-September Restricted only by one's imagination and engineering skills, ducted splits with custom-built air handlers cater to a variety of special applications. Bharucha, Rumi H Air Conditioning Restaurants 2005 April-June Stand-alone restaurants that are not the first part of a large hotel have their own set of problems to face. How they normally handle their HVAC needs are described by the author. Bholanda, J.V. CO2 Levels in Auditoriums 2005 April-June What you cannot measure, you cannot control. Actual measurements carried out in four auditoriums in Vadodra will help HVAC engineers to become aware of air quality and not just temperature. [ top]
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Chauhan, M.M. CO2 Levels in Auditoriums 2005 April-June What you cannot measure, you cannot control. Actual measurements carried out in four auditoriums in Vadodra will help HVAC engineers to become aware of air quality and not just temperature. [ top]
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Datta, Dipti Special AHU Designs Aero-acoustic technology can be used to save space, reduce energy as well as noise & vibration in design of air handling units 2005 January-March The standard design air-handling unit with centrifugal blowers is in for a radical change with special designs described by the author in this article. Hundreds of such designs are operating successfully in the USA in auditoriums, office buildings, clean rooms and pharma plants. Deodhar, K.D Cooling the Taj Group of Hotels 2005 April-June Air conditioning at the Taj Mahal Hotel in Mumbai was first installed over 60 years ago. What the engineering team has learnt over this period has now been summarized in this article. [ top]
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Hukmani, N.S. Review of Inside Design Conditions in Air Conditioned Spaces 2004 January-March The author suggests that a review be made of the current practice of specifying inside design conditions based on ASHRAE standards, as most people in the country dress in light weight cotton clothes and are chilled to the bone in many AC hotels, restaurants, auditoriums and offices. COOLING LOAD CALCULATIONS - Some Concepts & Mis-Concepts 2004 July-September Some practical tips to help the engineer work out more accurate cooling load estimates and determine realistic plant capacities. [ top]
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Iyer, R S Practical Considerations when Switching over to HFC-134a & HC from CFC-12 2004 July-September With the phase out of CFC-12 all OEMs in India have had to change over to non-CFC refrigerants. Substitutes like HFC-134a and HC blends have now been adopted and this article compares the performance of these refrigerants with CFC-12 and the practical issues involved with the use. Iyengar, R. Muralidharan A Packaged Air Conditioners: The Scene in India 2005 July-September A broad overview of the type and range of packaged air conditioners available in India and the future trend. [ top]
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Jog, Krishna Advantages of Open Recip Compressors 2004 January-March Open recip compressors are manufactured by several companies in India and are the work-horses of the refrigeration industry. Why they remain popular and more commonly used than screw and semi-hermetic recips is explained in this article. Faster Pull Down in Refrigeration Plants 2004 October-December Very often forgotten and sometimes overlooked, the pull-down period in a low-temperature refrigeration plant, if not initially specified, can cause big headaches late, specially in a batch cooling process. Dr. Jain, Prem Air Conditioning the CII GODREJ- Green Business Centre 2004 April-June The design philosophy, energy modeling and some of the details that went into the design of the HVAC and other M & E services are explained by the consultants for the project. Jhaveri, Yashwant Chemical Cleaning of Finned Coils 2005 October-December Developed in the country many years ago this chemical coil cleaner has been successfully tried out all over India. The article explains how it is applied and how its effectiveness can be measured. [ top]
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Klein, S.A. AIR WASHERS - A new look at a vintage technolgy 2005 January-March Air washers, commonly used in textile mills and synthetic fibre plants today were first used by Dr. Willis Carrier almost a hundred years ago, when the design and installation of air conditioning plants first came on the scene in America. Khatwani, Sunil Packaged Cooling for Comfort 2005 July-September Standard packaged air conditioners designed for comfort are widely used for several applications. [ top]
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Lehr, Valentine A. Designing Eco-Hotels 2004 April-June Eco-hotels and green buildings. What's the difference? None, as you will see, after reading this article. Lulla, M. H. VRF Units for Perimeter Zone Control 2005 July-September Variable Refrigeration Flow (VRF) units are slowly finding a firm foothold in the country with their many special features. An unusual application is explained. [ top]
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MacCracken, Mark Thermal Energy Storage 2004 April-June The article attempts to set the record straight on the myths and reality of this technology. Majumdar, Arup Digital Scroll Technology 2004 January-March A new technology for capacity modulation in hermetic scroll compressors different fro the traditional inverter technology has been developed by Copeland especially for the Asian market where modulation is required for higher seasonal efficiency. This article explains the technology behind the digital scroll. Majumdar, Mili GREEN BUILDING DESIGN: An integrated design process to reduce energy 2004 April-June As energy consultants for the CII-Godrej GBC, the author gives the reader an overview of the design principles of green buildings in general and the Hyderabad project in particular. Maheshwar, C Container Refrigeration (Part 1) 2004 October-December Refrigerated Containers are used to transport our growing exports of frozen meat, seafood, and fresh fruits. This, the first of a series of articles on the subject, will help readers learn more about this application of refrigeration technology. Container Refrigeration (Part 2) 2005 January-March This second part of the article explains how specified temperatures are controlled and maintained both for above and below freezing temperatures. Normally selected temperatures for a variety of fruits, vegetables, flowers, diary products and meats are furnished.Container Container Refrigeration (Part 3) 2005 April-June Controlled atmosphere conditions in containers and how they are maintained is the subject.Container Refrigeration (Concluding Part 4) 2005 July-September The evolution of temperature recording systems used in reefer containers from the days of log sheets to remote monitoring currently in use. Manglani, A.K. CO2 Levels in Auditoriums 2005 April-June What you cannot measure, you cannot control. Actual measurements carried out in four auditoriums in Vadodra will help HVAC engineers to become aware of air quality and not just temperature. Mascarenhas, Abel Maintaining Low Pressure Chillers 2004 July-September Upto now most maintenance personnel have not exercised much care in conserving R-11 refrigerant in centrifugal chillers since this is freely available in Inia. With the phasing out of R-11, beginning in 2005 costs will increase sharply and that's why it is essential to maintain your chillers with grear care. Mathur, Atul Superior Service will sharpen your competitive edge 2004 July-September Everyone knows the importance of good service but there is no harm in stressing the issue again, in these days of tough competition. The author speaks from his background and experience in India. Morrison, Frank T. What's up with Cooling Towers 2004 October-December The advantages of a water-cooled system, types of cooling towers available, importance of capacity certification, closed circuit towers, new hybrid designs and water treatment issues are all well explained in this article. M. El-Morsi AIR WASHERS - A new look at a vintage technolgy 2005 January-March Air washers, commonly used in textile mills and synthetic fibre plants today were first used by Dr. Willis Carrier almost a hundred years ago, when the design and installation of air conditioning plants first came on the scene in America. Murthy, S K Air Conditioning Saifee Hospital & Research Centre 2004 October-December This newest addition to Mumbai's growing list of hospitals will be commissioned shortly and the consultants explain their philosophy behind the HVAC system design. A question-and-answer style makes for easier reading. [ top]
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Nadkarny, Pradeep Six Key Steps in Hotel HVAC Design 2005 April-June There are many involved in designing a hotel's HVAC system, but the six steps that are most important are detailed here. Nair, Sandeep Air Conditioning Saifee Hospital & Research Centre 2004 October-December This newest addition to Mumbai's growing list of hospitals will be commissioned shortly and the consultants explain their philosophy behind the HVAC system design. A question-and-answer style makes for easier reading. Narke, Monisha Securing Clean Air Devices 2004 July-September Filter performance and validation is becoming increasingly important. This article covers validation methodology, testing modes and device types. [ top]
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Paranjpey, Ramesh Why Compressors Fail 2004 January-March Refrigeration system designers and service engineers need to understand the limitations of a compressor and the importance of the total system design in the proper working of a compressor. Before blaming a manufacturer for a compressor failure, analyse the system and chances are the reason for failure lies elsewhere. Lubricating Oil & Tear - Down Analysis of Reciprocating Compressor 2004 July-September Analyzing a reciprocating compressor breakdown calls for detailed work and study. The author takes you step by step on a study of various failed parts to determine what went wrong. Very much like a post-mortem carried out on a human cadaver. Designing a Cold Storage and it's Refrigeration System 2005 July-September The article explains the thinking process that helped two engineering students from Pune win an ASHRAE Global Award for a cold storage design. Payne, Tony Why are Screw Compressors Popular? 2004 January-March Large screw compressors are displacing recips in many industrial refrigeration applications and centrifugals in air conditioning applications. This article explains the history of screws, their features, the uniqueness of the single screw and what makes them popular. [ top]
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Raghupathy, S Green Buildings: Opportunities & Benefits 2004 April-June As director and head of CII-Godrej GBC and a person deeply involved in the project, the author talks about the potential for green buildings in India and lists the major green features built into the project. Rakheja Ashish Air Conditioning the CII GODREJ- Green Business Centre 2004 April-June The design philosophy, energy modeling and some of the details that went into the design of the HVAC and other M & E services are explained by the consultants for the project. Rao, N.S. Managing Water Quality in Chillers 2005 October-December Inspite of severe water shortage in all major cities of the country, water-cooled chillers are commonly installed in major hotels, hospitals, airports and industry. How to manage water quality on such projects is the subject of this article. Ravindranathan, M P HVAC for OFFSHORE PLATFORMS (Part 1 of 2) 2004 October-December Air conditioning offshore platforms is a highly specialized area of activity and hardly any consultants (other than EIL) or HVAC contractors have ventured into this area. The author, in this two part article, does a great job of removing the air of mystery surrounding. HVAC for OFFSHORE PLATFORMS (Part 2) 2005 January-March This concluding part gives full details of equipment normally selected and used, type of ductwork, piping, insulation and electrical work carried out as well as the paperwork required before final handing over can be said to be complete by the purchaser. Reindl, D.T. AIR WASHERS - A new look at a vintage technolgy 2005 January-March Air washers, commonly used in textile mills and synthetic fibre plants today were first used by Dr. Willis Carrier almost a hundred years ago, when the design and installation of air conditioning plants first came on the scene in America. Roy, M.M. Humidification for Textile Mills 2005 January-March Processing raw cotton to finished fabric is dependant on the maintenance of the proper relative humidity in the various departments. The author first describes the steps in processing raw cotton and then the humidification and filtration systems employed. [ top]
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Sankaran, S Air Conditioning for Synthetic Fibre Plants 2005 January-March Design of air conditioning systems for synthetic fibre plants has generally been the preserve of a limited number of design-build HVAC contractors who are trusted by fibre manufacturers to deliver the goods. Important aspects of design are explained. Sapaliga, Shankar Duct Cleaning 2005 October-December Introduced in India about five years ago duct cleaning is now being gradually accepted by maintenance engineers as another routine job to be carried out in Hotels, hospitals, office buildings and wherever central systems are installed. Sarkar, Ashoke UVC Lamps Can Keep AHUs Clean 2005 October-December Keeping cooling coils and drain pans inside AHUs clean and free from fungus and slime can be a formidable task. How high output HVAC type UVC lamps have helped and in the bargain enhanced IAQ and saved energy are described. Shah, Surendra SHEETAL MINAR: A combination of modern technology and heritage techniques 2004 April-June The concept of pre-cooling the fresh air for the AC plant at the CII-Godrej Green Business Centre works well using traditional Indian methods combined with the Moorish wind towers of Spain. Shankar, Uma Variable Frequency Drives for Green Buildings 2004 April-June Why variable frequency drives are ideal for green buildings is explained by the author. Simha, R.V. HVAC of GREEN BUILDINGS 2004 April-June The reader is guided through the various options available to him, while designing the HVAC system for a green building. The environmental impact of chillers are well explained. High-Delta T Chilled Water Systems 2005 April-June The successful performance of such systems depends on careful selection of chilled water-cooling coils and control valves. How exactly this is done is explained in an example. Singh, Jagdeep Restorative Drying 2005 October-December The floods in Mumbai on 26/7/2005 caused massive loss of life, property and goods. Psychrometrics and dehumidifiers came to the rescue by providing drying services for water-damaged valuable paper records, appliances and electronic items. Sundarajan, V Why are Screw Compressors Popular? 2004 January-March Large screw compressors are displacing recips in many industrial refrigeration applications and centrifugals in air conditioning applications. This article explains the history of screws, their features, the uniqueness of the single screw and what makes them popular. [ top]
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Thakur, Prem Cold Rooms at Grand Hyatt Mumbai - Green Business Centre 2005 April-June Prefabricated cold rooms with PUF insulation, convenient accessories and dependable refrigeration equipment makes life easier for the maintenance staff. [ top]
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Wang Simon Digital Scroll Technology 2004 January-March A new technology for capacity modulation in hermetic scroll compressors different fro the traditional inverter technology has been developed by Copeland especially for the Asian market where modulation is required for higher seasonal efficiency. This article explains the technology behind the digital scroll. Wei Sun, PE The US Market for Packaged Air Conditioners 2005 July-September The largest market in the world for "unitary products" including packaged air conditioners and how it has developed some designs for its special needs. [ top]