Water (R718) Turbo Compressor and Ejector Refrigeration / Heat Pump Technology

Water (R718) Turbo Compressor and Ejector Refrigeration / Heat Pump Technology
Author: Milan N. Šarevski
Publisher: Butterworth-Heinemann
Total Pages: 306
Release: 2016-02-03
Genre: Science
ISBN: 0081007345

Water (R718) Turbo Compressor and Ejector Refrigeration/Heat Pump Technology provides the latest information on efficiency improvements, a main topic in recent investigations of thermal energy machines, plants, and systems that include turbo compressors, ejectors, and refrigeration/heat pump systems. This, when coupled with environmental concerns, has led to the application of eco-friendly refrigerants and to a renewed interest in natural refrigerants. Within this context, readers will find valuable information that explores refrigeration and heat pump systems using natural refrigerants, polygeneration systems, the energy efficiency of thermal systems, the utilization of low temperature waste heat, and cleaner production. The book also examines the technical, economic, and environmental reasons of R718 refrigeration/heat pump systems and how they are competitive with traditional systems, serving as a valuable reference for engineers who work in the design and construction of thermal plants and systems, and those who wish to specialize in the use of R718 as a refrigerant in these systems. - Describes existing novel R718 turbo compressor and ejector refrigeration/heat pump systems and technologies - Provides procedures calculating and optimizing cycles, system components, and system structures - Estimates the performance characteristics of the thermal systems - Exposes the possibilities for wider applications of R718 systems in the field of refrigeration and heat pumps

Ejectors for Efficient Refrigeration

Ejectors for Efficient Refrigeration
Author: Giuseppe Grazzini
Publisher: Springer
Total Pages: 192
Release: 2018-03-21
Genre: Technology & Engineering
ISBN: 3319752448

Encompassing both practical applications and recent research developments, this book takes the reader from fundamental physics, through cutting-edge new designs of ejectors for refrigeration. The authors’ unique vision marries successful design, system optimization, and operation experience with insights on the application of cutting-edge Computational Fluid Dynamics (CFD) models. This robust treatment leads the way forward in developing improved ejector technologies. The book covers ejectors used for heat powered refrigeration and for expansion work recovery in compression refrigerators, with special emphasis on two-phase flows of “natural” fluids within the ejector, i.e. steam and carbon dioxide. It features worked examples, detailed research results, and analysis tools.

Analysis of Rocket-powered Ejectors for Pumping Liquid Oxygen and Liquid Hydrogen

Analysis of Rocket-powered Ejectors for Pumping Liquid Oxygen and Liquid Hydrogen
Author: Leo C. Franciscus
Publisher:
Total Pages: 44
Release: 1970
Genre: Liquid hydrogen
ISBN:

A preliminary analysis of the use of rocket-powered ejectors for pumping liquid oxygen and liquid hydrogen in rocket engines was made. The drive gas is the exhaust gas of a smaller hydrogen-oxygen rocket engine. The analysis is one-dimensional and does not include shock or friction losses. For a nominal drive rocket chamber pressure of 600 psia (4.14 N/m (to the second power) abs), ideal discharge pressures over 2500 psia (17.25X10 (to the sixth power) N/m (to the second power) abs) for oxygen and 400 psia (2.75x10 (to the sixth power) N/m (to the second power) abs) for hydrogen were calculated. Ejector mass ratios (ratio of oxygen or hydrogen mass flow to drive gas flow) resulting in good performance were on the order of 300 for oxygen and 200 for hydrogen.

Beama

Beama
Author:
Publisher:
Total Pages: 642
Release: 1922
Genre: Electrical engineering
ISBN:

Handbook of Pumps and Pumping

Handbook of Pumps and Pumping
Author: Brian Nesbitt
Publisher: Elsevier
Total Pages: 499
Release: 2006-10-18
Genre: Technology & Engineering
ISBN: 0080549217

Written by an experienced engineer, this book contains practical information on all aspects of pumps including classifications, materials, seals, installation, commissioning and maintenance. In addition you will find essential information on units, manufacturers and suppliers worldwide, providing a unique reference for your desk, R&D lab, maintenance shop or library.* Includes maintenance techniques, helping you get the optimal performance out of your pump and reducing maintenance costs * Will help you to understand seals, couplings and ancillary equipment, ensuring systems are set up properly to save time and money * Provides useful contacts for manufacturers and suppliers who specialise in pumps, pumping and ancillary equipment