Results 21 to 30 of about 5,224,047 (250)

Waste Heat Recovery from Diesel Engine Exhaust Using a Single-Screw Expander Organic Rankine Cycle System: Experimental Investigation of Exergy Destruction

Energies, 2020
The organic Rankine cycle is a mature small-scale power generation technology for harnessing low- to mid-temperature heat sources. However, the low efficiency of the cycle still hinders its widespread implementation.
Yeqiang Zhang, Biao Lei, Zubair Masaud, Muhammad Imran, Yuting Wu, Jinping Liu, Xiaoding Qin, Hafiz Ali Muhammad   +7 more
doaj   +1 more source

Operation Characteristics and Transient Simulation of an ICE-ORC Combined System

Applied Sciences, 2019
Currently, internal combustion engines (ICEs) are still the main power for transportation. Energy conservation and emission reduction for ICEs have become the driving force of the industrial R&D in recent years.
Tong Liu, Enhua Wang, Fanxiao Meng, Fujun Zhang, Changlu Zhao, Hongguang Zhang, Rui Zhao   +6 more
doaj   +1 more source

Closed-Loop PI Control of an Organic Rankine Cycle for Engine Exhaust Heat Recovery

Energies, 2020
The internal combustion engine (ICE) as a main power source for transportation needs to improve its efficiency and reduce emissions. The Organic Rankine Cycle (ORC) is a promising technique for exhaust heat recovery.
Wen Zhang, Enhua Wang, Fanxiao Meng, Fujun Zhang, Changlu Zhao   +4 more
doaj   +1 more source

Development and a Validation of a Charge Sensitive Organic Rankine Cycle (ORC) Simulation Tool

Energies, 2016
Despite the increasing interest in organic Rankine cycle (ORC) systems and the large number of cycle models proposed in the literature, charge-based ORC models are still almost absent.
Davide Ziviani, Brandon J. Woodland, Emeline Georges, Eckhard A. Groll, James E. Braun, W. Travis Horton, Martijn van den Broek, Michel De Paepe   +7 more
doaj   +1 more source

Update on single-screw expander geometry model integrated into an open-source simulation tool [PDF]

, 2015
In this paper, a mechanistic steady-state model of a single-screw expander is described with emphasis on the geometric description. Insights into the calculation of the main parameters and the definition of the groove profile are provided.
Ziviani, DavideUGent000121093786802001576991975973258986D40416F8-DDE2-11E2-917F-78B210BDE39D, Ziviani, Davide, De Paepe, MichelTW088010010090590000-0003-0233-0719F4E40EEC-F0ED-11E1-A9DE-61C894A0A6B4, van den Broek, MartijnTW060001714893308020012100110000-0001-6255-91073DC7095C-F0EE-11E1-A9DE-61C894A0A6B4, Bell, Ian H, De Paepe, Michel, van den Broek, Martijn   +6 more
core   +1 more source

Performance evaluation of a novel single-screw compressor and expander design

IOP Conference Series: Materials Science and Engineering, 2019
Abstract Single-screw machines have seen significant development and improvement over the last decades and they are currently employed as both compressors and expanders in several applications. The correct functioning of the machine heavily relies on the meshing between the gate rotors and the central rotor which is directly linked to ...
Davide Ziviani, Patrick J. Goeghegan, Eckhard A. Groll   +2 more
openaire   +1 more source

Performance Prediction and Optimisation of Twin-Screw Expander [PDF]

, 2020
Positive displacement machines have been identified as appropriate expanders for small scale power generation systems such as ORCs. Screw expanders can operate with good efficiency for working fluids under both dry and two-phase conditions.
Read, M. G., Kovacevic, A., Vimalakanthan, K.   +2 more
core   +1 more source

Economic Analysis of Organic Rankine Cycle Using R123 and R245fa as Working Fluids and a Demonstration Project Report

Applied Sciences, 2019
The organic Rankine cycle (ORC) is a popular technology used in waste heat recovery and low-grade heat utilization, which are two important measures to solve the problems brought by the energy crisis.
Xinxin Zhang, Min Cao, Xiaoyu Yang, Hang Guo, Jingfu Wang   +4 more
doaj   +1 more source

A New Design of the Tooth Profile for Single Screw Compressors [PDF]

, 2012
The wear of star wheel teeth is an importance issue in the single screw compressor. In order to enhance the wearresistance of star wheel teeth, some new profiles of the meshing pair were proposed to replace the currently used straight line envelope ...
Feng, Quanke, Wu, Weifeng, Liu, Feilong, Li, Jian   +3 more
core   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source