Results 101 to 110 of about 12,335 (243)
Modeling and Testing of an R-23/R-134a Mixed Refrigerant System for Low Temperature Refrigeration [PDF]
, 2013 Low temperature refrigeration storage equipment in the biotechnology industry typically uses cascade refrigeration to achieve evaporating temperatures of -80 °C (-112 °F) or below.
Bowman, Anthony +2 more
core +1 more source
Sustainable Development, Volume 34, Issue S2, Page 182-203, March 2026.ABSTRACT The transition to affordable and clean energy sources is essential for creating a sustainable future. Green hydrogen, as an emerging energy carrier, has the potential to meet increasing energy demands while mitigating environmental impact and achieving SDG 7.
A. Telukdarie, K. Murulane, X. Maphisa
wiley +1 more source
Helium compressors for closed-cycle, 4.5-Kelvin refrigerators [PDF]
An improved helium compressor for traveling-wave maser and closed-cycle refrigerator systems was developed and is currently being supplied to the DSN. This new 5-hp compressor package is designed to replace the current 3-hp DSN compressors.
Hanson, T. R.
core +1 more source
Assessment of the impact of shaped nozzles installed inside the pipeline on the energy efficiency of compressed gas systems. [PDF]
Sci Rep, 2023 Młynarczyk P +5 more
europepmc +1 more source
Quality function deployment and sensitivity analysis of requirements for future aircraft propulsion cryogenic cooling systems [PDF]
, 2013 A number of novel future airframe and propulsion concepts are considered in order to meet aviation targets set by various aviation regulatory bodies including NASA and the Advisory Council for Aeronautics Research in Europe (ACARE).
Fan, Ip-Shing +3 more
core
Split-Stirling, linear-resonant, cryogenic refrigerators for detector cooling [PDF]
, 1983 For the past decade, military IR systems have preferred to see cryogenic coolers provided as split units; separating the functions of compressor and cold-end for system packaging and vibration isolation reasons.
Lehrfeld, D.
core +1 more source
Study on an Energy-saving Durability Test System for Reciprocating Refrigeration Compressor
Zhileng xuebao, 2013 This paper proposes an energy-saving system which is used to test the reliability of reciprocating refrigeration compressor. This system is established based on the principle of condensing of the partial refrigerant with high temperature and high ...
Wang Feng, Mi Xiaozhen
doaj
Applied SciencesAs for the fault diagnosis process of a reciprocating compressor, vibration signals are often non-stationary, nonlinear, and multi-coupled, which makes it difficult to conduct effective fault information extraction.
Fengxia Lyu +6 more
doaj +1 more source
Shock and Vibration, 2019 A piston slap is one of the main vibration sources of the reciprocating machinery. Much work has been done in this field, most of which was based on a constant rotating speed.
Siyuan Liu +3 more
doaj +1 more source
General Aviation Turbine Engine (GATE) study [PDF]
The feasibility of turbine engines for the smaller general aviation aircraft was investigated and a technology program for developing the necessary technology was identified.
Baerst, C. F., Furst, D. G.
core +1 more source