Results 41 to 50 of about 850 (142)

Analytical Investigation of TAR for Enhancing Performance Using Varied Stack configuration and Varied Working Fluid

open access: yesInternational Journal of Applied Mechanics and Engineering
Thermoacoustic cooling, which uses sound waves to transfer heat, is an environmentally friendly and simple alternative to conventional refrigeration. Gas mixture adjustment to improve cooling performance is understudied compared to pure gas use. Previous
Kamlesh S. Shelke   +3 more
doaj   +1 more source

Thermoacoustic refrigeration systems: recent developments [PDF]

open access: yesProceedings of the 3rd International Workshop on Thermoacoustics, 2015
Introduction In this paper, we first review our recent experimental and computational studies on the orificetype [1] and inertance-type [2] pulse tube refrigerators along with related optimization studies. The experimental studies are done at various values of mean pressure of helium (~ 0.35 MPa to 2.2 MPa), different amplitudes of pressure ...
B. Farouk, D.S. Antao
openaire   +1 more source

Cycle basics of thermally driven heat pumps [PDF]

open access: yes, 2013
Part of: Thermally driven heat pumps for heating and cooling. – Ed.: Annett Kühn – Berlin: Universitätsverlag der TU Berlin, 2013 ISBN 978-3-7983-2686-6 (print) ISBN 978-3-7983-2596-8 (online) urn:nbn:de:kobv:83-opus4-39458 [http://nbn ...
Kühn, Annett, Ziegler, Felix
core   +1 more source

Heat management technology for solid‐state high voltage and high repetitive pulse generators: Towards better effects and reliability

open access: yesHigh Voltage, Volume 9, Issue 1, Page 2-21, February 2024.
Abstract Solid‐state high voltage high repetitive pulse generators have a broad prospect in various applications. The high power and high‐frequency operation of the pulse generator suffer from the massive heat dissipation problem, which limits the improvement of the output parameters and even affects the lifetime.
Yanan Wang   +7 more
wiley   +1 more source

THE INFLUENCE OF WAVE PATTERNS AND FREQUENCY ON THERMO-ACOUSTIC COOLING EFFECT [PDF]

open access: yes, 2011
With the increasing environmental challenges, the search for an environmentally benign cooling technology that has simple and robust architecture continues. Thermo-acoustic refrigeration seems to be a promising candidate to fulfil these requirements.
CHEN BAIMAN   +2 more
core  

Pengaruh Frekuensi Resonansi Terhadap Penurunan Suhu Pada Sistem Termoklastik Sederhana [PDF]

open access: yes, 2014
Termoakustik merupakan fenomena fisis dimana Perubahan temperatur dapat menyebabkan gelombang (akustik) bunyi atau sebaliknya gelombang (akustik) bunyi dapat menimbulkan Perubahan temperatur.
Arif, N. R. (Nur)   +2 more
core   +3 more sources

LEADER (Leaf Element Accumulation from DEep Roots): A nondestructive phenotyping platform to estimate rooting depth in the field

open access: yesCrop Science, Volume 64, Issue 1, Page 333-353, January/February 2024.
Abstract Deeper rooted crops are an avenue to increase plant water and nitrogen uptake under limiting conditions and increase long‐term soil carbon storage. Measuring rooting depth, however, is challenging due to the destructive, laborious, or imprecise methods that are currently available.
Meredith T. Hanlon   +2 more
wiley   +1 more source

Weakly nonlinear thermoacoustics for stacks with slowly varying pore cross-sections [PDF]

open access: yes
A general theory of thermoacoustics is derived for arbitrary stack pores. Previous theoretical treatments of porous media are extended by considering arbitrarily shaped pores with the only restriction that the pore cross-sections vary slowly in the ...
Molenaar, J.   +3 more
core   +2 more sources

Effects of the optimized resonator dimensions on the performance of the standing-wave thermoacoustic refrigerator [PDF]

open access: yes, 2014
Thermoacoustic refrigerator is an alternative cooling system, which is environmentally safe due to the absence of any refrigerants. The resonator tube of the system is of great importance; its design and dimensions influence the design and performance of
El-Fawal, Mawahib Hassan   +2 more
core  

Experimental investigation of heat transfer effectiveness on finned-tube thermoacoustic heat exchanger [PDF]

open access: yes, 2013
Heat exchangers are some of the most important parts in thermoacoustic devices. In an oscillatory flow condition, the flow and temperature fields around the heat exchangers can be quite complex and it may significantly affect their heat transfer ...
Jaworski, AJ, Kamsanam, W, Mao, X
core  

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