raghu neel - Academia.edu (original) (raw)

Papers by raghu neel

Research paper thumbnail of Absorption chillers and heat pumps

Dedication This book is dedicated to Professor Dr. Georg Alefeld (March 2, 1933 to August 25, 199... more Dedication This book is dedicated to Professor Dr. Georg Alefeld (March 2, 1933 to August 25, 1995). Dr. Alefeld started his career with the investigation of the relaxation effects in lattices and proceeded to working with hydrogen in metals. During the last 15 years of his career ...

Research paper thumbnail of New approach to dynamic modelling of vapour-compression liquid chillers: artificial neural networks

Applied Thermal …, Jan 1, 2001

Research paper thumbnail of Performance monitoring, fault detection, and diagnosis of reciprocating chillers

Research paper thumbnail of Thermodynamic modeling of reciprocating chillers

Journal of applied physics, Jan 1, 1994

The purpose of this article is the development of a simple thermodynamic model for reciprocating ... more The purpose of this article is the development of a simple thermodynamic model for reciprocating chillers-a model that could be valuable for diagnostic purposes, for predicting chiller performance over a wide range of oper-ating conditions from just a few measurements, and for ...

Research paper thumbnail of Modeling the performance of two-bed, sillica gel-water adsorption chillers: Modélisation de la performance des refroidisseurs ą deux lits ą adsorption utilisant le gel de …

International journal of …, Jan 1, 1999

Research paper thumbnail of Multi-criteria optimization of a district cogeneration plant integrating a solid oxide fuel cell-gas turbine combined cycle, heat pumps and chillers

Research paper thumbnail of Predictive and diagnostic aspects of a universal thermodynamic model for chillers

International Journal of Heat and Mass Transfer, Jan 1, 1995

Research paper thumbnail of Centrifugal chillers: thermodynamic modelling and a diagnostic case study

International journal of refrigeration, Jan 1, 1995

On démontre, par le biais d'une étude de cas d&a... more On démontre, par le biais d'une étude de cas d'un refroidisseur centrifuge commercial, déjà installé, les possibilités d'un modèle thermodynamique simple pour l'évaluation des performances des refroidisseurs. On a mesuré les données de performance avant et après une ...

Research paper thumbnail of Cool thermodynamics

Research paper thumbnail of Steady-state model of centrifugal liquid chillers:: Modčle pour des refroidisseurs de liquide centrifuges en régime permanent

International journal of refrigeration, Jan 1, 1998

A new steady-state model of vapour-compression type centrifugal liquid chillers is presented. The... more A new steady-state model of vapour-compression type centrifugal liquid chillers is presented. The model has a number of advanced features and is capable of simulating both hermetic and open-drive centrifugal compressors. The model accounts for the real ...

Research paper thumbnail of Psychrometry and psychrometric charts

... Psychrometry and psychrometric charts. Post a Comment. CONTRIBUTORS: Author: Barenbrug, AW. P... more ... Psychrometry and psychrometric charts. Post a Comment. CONTRIBUTORS: Author: Barenbrug, AW. PUBLISHER: Chamber of Mines of South Africa (Johannesburg). SERIES TITLE: YEAR: 1974. PUB TYPE: Book (ISBN 0620015861 ). VOLUME/EDITION: 3rd edition. ...

Research paper thumbnail of Psychrometric Measurement of Soil Water Potential: Temperature and Bulk Density Effects1

Soil Science Society of America Journal, Jan 1, 1970

A theoretical analysis shows that by imposing certain boundary conditions it should be possible t... more A theoretical analysis shows that by imposing certain boundary conditions it should be possible to eliminate the major effects of temperature fluctuation on psychrometric measurements of soil water potential. Tests on a psychrometer constructed to meet these boundary conditions ...

Research paper thumbnail of Mathematical model of the psychrometric chart

TRANSACTIONS of the ASAE, Jan 1, 1967

Research paper thumbnail of Fundamentals of heat and mass transfer

This text introduces the physical effects underlying heat and mass transfer phenomena and develop... more This text introduces the physical effects underlying heat and mass transfer phenomena and develops methodologies for solving a variety of real-world problems. It emphasizes the importance of conservation principles, particularly the first law of thermodynamics, in heat transfer analysis, and has ...

Research paper thumbnail of Conduction of heat in solids

Oxford: Clarendon Press, 1959, 2nd …, Jan 1, 1959

Title: Conduction of heat in solids. Authors: Carslaw, HS; Jaeger, JC. Publication: Oxford: Clare... more Title: Conduction of heat in solids. Authors: Carslaw, HS; Jaeger, JC. Publication: Oxford: Clarendon Press, 1959, 2nd ed. Publication Date: 00/1959. Origin: ESO. Bibliographic Code: 1959chs..book.....C. Abstract. Not Available

Research paper thumbnail of Heat transmission

... Books 1 to 1 of 1. Title: Heat transmission. Author(s): William Henry McAdams. Date: 1954. Ed... more ... Books 1 to 1 of 1. Title: Heat transmission. Author(s): William Henry McAdams. Date: 1954. Edition: 3rd ed. Publisher: McGraw-Hill. Pages: 532. Series: McGraw-Hill series in Chemical Engineering. Subject: Heat transfer. Call #: QC320:M25 Take a Virtual Look at the Shelves. ...

Research paper thumbnail of Introduction to heat transfer

This book explains the physical concepts and methodologies of heat and mass transfer. It uses a s... more This book explains the physical concepts and methodologies of heat and mass transfer. It uses a systematic method for problem solving and discusses the relationship of heat and mass transfer to many important practical applications through examples and problems. It also presents ...

Research paper thumbnail of Computational fluid mechanics and heat transfer

Research paper thumbnail of Compact heat exchangers

This third edition is an update of the second edition published in 1964. New data and more modern... more This third edition is an update of the second edition published in 1964. New data and more modern theoretical solutions for flow in the simple geometries are included, although this edition does not differ radically from the second edition. It contains basic test data for eleven new ...

Research paper thumbnail of Portable dehumidifiers in the control of house dust mites and mite allergens

Clinical & …, Jan 1, 1995

Humidity is a decisive limiting factor for house dust mite (HDM) population growth and decreasing... more Humidity is a decisive limiting factor for house dust mite (HDM) population growth and decreasing humidity may be the control method of choice. This study investigates the effects of portable dehumidifiers on the mite counts and concentration of the HDM allergen Der p I in the homes in northwest England. Mite counts and Der p I were measured in the paired dust samples collected by vacuuming a 1 m2 area of bedroom carpet, living room carpet, mattress and sofa for 2 min in six houses supplied with the dehumidifier and six control houses, before and 1, 2 and 3 months after the installment of dehumidifier. Temperature and relative humidity were recorded daily. There was no difference in mite counts in either of the groups throughout the study. Der p I decreased significantly in both groups and in all sampling sites, but no significant differences in the levels of reduction between the groups were found. Condensation was decreased in the dehumidifier group, but the level of indoor humidity capable of retarding mite population growth was not achieved. A single portable dehumidifier placed centrally in the house is unable to decrease indoor humidity to the level capable of retarding mite population growth and decreasing HDM allergens in the type of houses predominantly found in the northwest of England.

Research paper thumbnail of Absorption chillers and heat pumps

Dedication This book is dedicated to Professor Dr. Georg Alefeld (March 2, 1933 to August 25, 199... more Dedication This book is dedicated to Professor Dr. Georg Alefeld (March 2, 1933 to August 25, 1995). Dr. Alefeld started his career with the investigation of the relaxation effects in lattices and proceeded to working with hydrogen in metals. During the last 15 years of his career ...

Research paper thumbnail of New approach to dynamic modelling of vapour-compression liquid chillers: artificial neural networks

Applied Thermal …, Jan 1, 2001

Research paper thumbnail of Performance monitoring, fault detection, and diagnosis of reciprocating chillers

Research paper thumbnail of Thermodynamic modeling of reciprocating chillers

Journal of applied physics, Jan 1, 1994

The purpose of this article is the development of a simple thermodynamic model for reciprocating ... more The purpose of this article is the development of a simple thermodynamic model for reciprocating chillers-a model that could be valuable for diagnostic purposes, for predicting chiller performance over a wide range of oper-ating conditions from just a few measurements, and for ...

Research paper thumbnail of Modeling the performance of two-bed, sillica gel-water adsorption chillers: Modélisation de la performance des refroidisseurs ą deux lits ą adsorption utilisant le gel de …

International journal of …, Jan 1, 1999

Research paper thumbnail of Multi-criteria optimization of a district cogeneration plant integrating a solid oxide fuel cell-gas turbine combined cycle, heat pumps and chillers

Research paper thumbnail of Predictive and diagnostic aspects of a universal thermodynamic model for chillers

International Journal of Heat and Mass Transfer, Jan 1, 1995

Research paper thumbnail of Centrifugal chillers: thermodynamic modelling and a diagnostic case study

International journal of refrigeration, Jan 1, 1995

On démontre, par le biais d'une étude de cas d&a... more On démontre, par le biais d'une étude de cas d'un refroidisseur centrifuge commercial, déjà installé, les possibilités d'un modèle thermodynamique simple pour l'évaluation des performances des refroidisseurs. On a mesuré les données de performance avant et après une ...

Research paper thumbnail of Cool thermodynamics

Research paper thumbnail of Steady-state model of centrifugal liquid chillers:: Modčle pour des refroidisseurs de liquide centrifuges en régime permanent

International journal of refrigeration, Jan 1, 1998

A new steady-state model of vapour-compression type centrifugal liquid chillers is presented. The... more A new steady-state model of vapour-compression type centrifugal liquid chillers is presented. The model has a number of advanced features and is capable of simulating both hermetic and open-drive centrifugal compressors. The model accounts for the real ...

Research paper thumbnail of Psychrometry and psychrometric charts

... Psychrometry and psychrometric charts. Post a Comment. CONTRIBUTORS: Author: Barenbrug, AW. P... more ... Psychrometry and psychrometric charts. Post a Comment. CONTRIBUTORS: Author: Barenbrug, AW. PUBLISHER: Chamber of Mines of South Africa (Johannesburg). SERIES TITLE: YEAR: 1974. PUB TYPE: Book (ISBN 0620015861 ). VOLUME/EDITION: 3rd edition. ...

Research paper thumbnail of Psychrometric Measurement of Soil Water Potential: Temperature and Bulk Density Effects1

Soil Science Society of America Journal, Jan 1, 1970

A theoretical analysis shows that by imposing certain boundary conditions it should be possible t... more A theoretical analysis shows that by imposing certain boundary conditions it should be possible to eliminate the major effects of temperature fluctuation on psychrometric measurements of soil water potential. Tests on a psychrometer constructed to meet these boundary conditions ...

Research paper thumbnail of Mathematical model of the psychrometric chart

TRANSACTIONS of the ASAE, Jan 1, 1967

Research paper thumbnail of Fundamentals of heat and mass transfer

This text introduces the physical effects underlying heat and mass transfer phenomena and develop... more This text introduces the physical effects underlying heat and mass transfer phenomena and develops methodologies for solving a variety of real-world problems. It emphasizes the importance of conservation principles, particularly the first law of thermodynamics, in heat transfer analysis, and has ...

Research paper thumbnail of Conduction of heat in solids

Oxford: Clarendon Press, 1959, 2nd …, Jan 1, 1959

Title: Conduction of heat in solids. Authors: Carslaw, HS; Jaeger, JC. Publication: Oxford: Clare... more Title: Conduction of heat in solids. Authors: Carslaw, HS; Jaeger, JC. Publication: Oxford: Clarendon Press, 1959, 2nd ed. Publication Date: 00/1959. Origin: ESO. Bibliographic Code: 1959chs..book.....C. Abstract. Not Available

Research paper thumbnail of Heat transmission

... Books 1 to 1 of 1. Title: Heat transmission. Author(s): William Henry McAdams. Date: 1954. Ed... more ... Books 1 to 1 of 1. Title: Heat transmission. Author(s): William Henry McAdams. Date: 1954. Edition: 3rd ed. Publisher: McGraw-Hill. Pages: 532. Series: McGraw-Hill series in Chemical Engineering. Subject: Heat transfer. Call #: QC320:M25 Take a Virtual Look at the Shelves. ...

Research paper thumbnail of Introduction to heat transfer

This book explains the physical concepts and methodologies of heat and mass transfer. It uses a s... more This book explains the physical concepts and methodologies of heat and mass transfer. It uses a systematic method for problem solving and discusses the relationship of heat and mass transfer to many important practical applications through examples and problems. It also presents ...

Research paper thumbnail of Computational fluid mechanics and heat transfer

Research paper thumbnail of Compact heat exchangers

This third edition is an update of the second edition published in 1964. New data and more modern... more This third edition is an update of the second edition published in 1964. New data and more modern theoretical solutions for flow in the simple geometries are included, although this edition does not differ radically from the second edition. It contains basic test data for eleven new ...

Research paper thumbnail of Portable dehumidifiers in the control of house dust mites and mite allergens

Clinical & …, Jan 1, 1995

Humidity is a decisive limiting factor for house dust mite (HDM) population growth and decreasing... more Humidity is a decisive limiting factor for house dust mite (HDM) population growth and decreasing humidity may be the control method of choice. This study investigates the effects of portable dehumidifiers on the mite counts and concentration of the HDM allergen Der p I in the homes in northwest England. Mite counts and Der p I were measured in the paired dust samples collected by vacuuming a 1 m2 area of bedroom carpet, living room carpet, mattress and sofa for 2 min in six houses supplied with the dehumidifier and six control houses, before and 1, 2 and 3 months after the installment of dehumidifier. Temperature and relative humidity were recorded daily. There was no difference in mite counts in either of the groups throughout the study. Der p I decreased significantly in both groups and in all sampling sites, but no significant differences in the levels of reduction between the groups were found. Condensation was decreased in the dehumidifier group, but the level of indoor humidity capable of retarding mite population growth was not achieved. A single portable dehumidifier placed centrally in the house is unable to decrease indoor humidity to the level capable of retarding mite population growth and decreasing HDM allergens in the type of houses predominantly found in the northwest of England.