Results 241 to 250 of about 6,375,807 (304)

Experimental investigation of an Organic Rankine Cycle Tesla turbine working with R1233zd(E)

, 2020
The increasing interest in micro power generation is pushing the research world to find new solutions for increasing the efficiency of micro Organic Rankine Cycles. One of their main issues is the efficiency and the reliability of the expander. The Tesla
L. Talluri, O. Dumont, G. Manfrida, V. Lemort, D. Fiaschi   +4 more
semanticscholar   +1 more source

A limiting efficiency of subcritical Organic Rankine cycle under the constraint of working fluids

Energy, 2018
Weicong Xu, Li Zhao, Shuai Deng
exaly   +2 more sources

Temporary Agency Work and the Business Cycle

SSRN Electronic Journal, 2007
PurposeThe purpose of this paper is to test the relationship between gross domestic product (GDP) and agency work.Design/methodology/approachThe paper develops a theoretical model for the time interdependence of GDP, agency work and regular employment and tested model predictions using a VAR model.FindingsResults show that on the macro level temporary ...
Marloes de Graaf‐Zijl, Ernest E. Berkhout   +1 more
openaire   +1 more source

Work and Rest Cycles in Anesthesia Practice

Anesthesiology, 1990
A questionnaire inquiring about existing and desirable work and rest patterns appeared in a newsletter mailed to about 22,000 anesthesiologists and anesthesiology residents and 24,000 nurse anesthetists (CRNA). Almost 3,000 anonymous replies were received and analyzed. Respondents reported mean work weeks of 47.5 h (CRNA) to 69.8 h (residents), longest
J S, Gravenstein, J B, Cooper, F K, Orkin   +2 more
openaire   +2 more sources

CO2-based mixture working fluids used for the dry-cooling supercritical Brayton cycle: Thermodynamic evaluation

Applied Thermal Engineering, 2019
Supercritical carbon dioxide Brayton cycle, distinguished by high thermal efficiency and compact structure, has great potential for application in solar thermal power generation systems.
Xinxin Liu, Zhen Xu, Yingchun Xie, Haiyan Yang   +3 more
semanticscholar   +1 more source

Working conditions in hydrogen production: A social life cycle assessment

Journal of Industrial Ecology, 2019
Social impacts of novel technology can, parallel to environmental and economic consequences, influence its sustainability. By analyzing the case of hydrogen production by advanced alkaline water electrolysis (AEL) from a life cycle perspective, this ...
Jasmin Werker, C. Wulf, P. Zapp
semanticscholar   +1 more source

Performance prediction and working fluids selection for organic Rankine cycle under reduced temperature

Applied Thermal Engineering, 2019
This paper presents the approach for selection of optimal working fluids and cycle performance prediction for organic Rankine cycle (ORC) based on a theoretical exergy efficiency model (EEM) under reduced temperature.
Chen Guibing, Qingsong An, Yongzhen Wang, Jun Zhao, C. Nini, Junaid Alvi   +5 more
semanticscholar   +1 more source

Comparative study of combined solid oxide fuel cell-gas turbine-Organic Rankine cycle for different working fluid in bottoming cycle

Energy Conversion and Management, 2018
Worldwide efforts are being made for evolving viable electricity generation alternative to the traditional fossil fuel based power generation systems and also to enhance the efficiency of existing power generation systems.
R. P. Singh, O. Singh
semanticscholar   +1 more source

Maximal work of one breathing cycle

Journal of Applied Physiology, 1960
The method used enables one to record directly the pressure-volume diagram of a subject while breathing against a high resistance. The average work accomplished during expiration was 69% and, during inspiration, 79% of that which was predicted from the pressures developed against a column of mercury at different lung volumes.
openaire   +2 more sources

Simultaneous optimization of system structure and working fluid for the three-stage condensation Rankine cycle utilizing LNG cold energy

Applied Thermal Engineering, 2018
For the power generation systems utilizing liquefied natural gas (LNG) cold energy, most researches paid attention to enhance the heat exchange process to improve the performance, but the compression and expansion process are less considered.
J. Bao, Ruixiang Zhang, Yan Lin, Ning Zhang, Xiaopeng Zhang, G. He   +5 more
semanticscholar   +1 more source