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All Journal INTERNATIONAL JOURNAL OF ECONOMIC LITERATURE Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin
Lesmana, Pandu
Unknown Affiliation
Control & Systems Engineering Economics, Econometrics & Finance Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Flow Characteristics of Pumps in Series and Parallel Lesmana, Pandu; Nuramal, Agus; Suryadi, Dedi
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 5 No. 2 (2021): Oktober 2021
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v5i2.20173

Abstract

Pump is a device used to move fluid. The pump moved the fluid from a lower pressure place to a place with higher pressure. If the head or pump capacity needed cannot be achieved using only one pump, it can use two pumps or even more which can be arranged either in series or in parallel. The research objective for pumps arranged in series and in parallel is to determine the characteristics of the circuit of two pumps each of which has different characteristics. In this study, data retrieval is done by measuring the pressure on suction and discharge using pressure gauge at pumps 1 and 2. Whereas to measure the flow rate of a pump arranged in series and parallel using a flowmeter installed on the discharge side of the circuit. This research was done by varied the valve openings on the pump discharge side 2 namely. 2x1800, 4x1800, 6x1800, 8x1800 and full openings. From the results of tested the characteristics of the pump used water fluid on the series arrangement, the highest head value at valve opening 2 x 1800 is 30.99 m at discharge 0 LPM and the lowest head at valve opening 10 x 1800 (full) is 23.99 m at discharge 0 LPM. In parallel circuits, the highest head obtained is 16.99 m with 0 LPM discharge at 8 x 1800 valve openings and lowest head 14.99 at 0 LPM discharge occurs at full valve openings.
BEHAVIORAL ECONOMICS AND ECONOMIC COMMUNICATION: ANALYZING THE IMPACT OF COGNITIVE BIASES ON DECISION-MAKING Kosasih, Kosasih; Lesmana, Pandu; Judijanto, Loso; Cahyati, Myra; Abdallah Al- Shreifeen, Iyad
INTERNATIONAL JOURNAL OF ECONOMIC LITERATURE Vol. 2 No. 1 (2024): January
Publisher : Adisam Publisher

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Abstract

Behavioral economics, a dynamic field at the intersection of psychology and economics, recognizes that human decision-making is far from the rational, utility-maximizing model traditionally assumed in economic theory. This study delves into the profound implications of cognitive biases on decision-making and explores how effective economic communication can mitigate their effects. Key findings reveal the prevalence of cognitive biases, including confirmation bias, anchoring, and loss aversion, impacting a majority of decision-makers. These biases significantly affect personal finance, investment, and public policy choices. Effective communication strategies, message framing, and behavioral insights are pivotal in countering these biases and improving decision quality. Armed with an understanding of cognitive biases, economic experts and policymakers can tailor communication and policy design to promote rational choices. The study also identifies challenges and future directions, emphasizing the ongoing need for research and innovative strategies. In conclusion, this research sheds Light on the interplay between cognitive biases, economic communication, and decision-making, offering insights into strategies for enhancing economic well-being and promoting informed choices.
Co-Authors Abdallah Al- Shreifeen, Iyad Agus Nuramal Cahyati, Myra Dedi Suryadi Judijanto, Loso KOSASIH KOSASIH, KOSASIH