JURNAL ILMIAH - Undip PAK Repository

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LEMBAR

HASIL PENILAIAN SEJAWAT SEBIDANG ATAU PEER REVIEW KARYA ILMIAH : JURNAL ILMIAH

Judul karya ilmiah (artikel) : An Empirical Analysis Of The Impact Of Investment, Labor And Education On Economic (Case Study Of Nine Regencies/Cities In Bali Province, 2013 - 2019)

Jumlah Penulis : 2 orang

Status Pengusul : Penulis ke 2

Nama Penulis : Dr.Drs. Nugroho Sumarjiyanto Benedictus Maria, M.Si.

Identitas Jurnal Ilmiah

: a. Nama Jurnal : INTERNATIONAL JOURNAL OF SCIENTIFIC &

TECHNOLOGY RESEARCH

: b. Nomor ISSN : ISSN 2277-8616

: c. Volume, nomor, bulan, tahun

: VOLUME 10, ISSUE 04, APRIL 2021

: d. Penerbit : International Journal of Scientific and Technology Research (IJSTR)

: e. DOI artikel (jika ada) :

: f. Alamat web jurnal : http://www.ijstr.org/

: g. Terindeks di scimagojr / Thomson Reufer ISI knowledge atau di nasional / terindeks di DOAJ, CABi, Copernicus

:

Kategori Publikasi Jurnal Ilmiah : : Jurnal Ilmiah Internasional /Internasional bereputasi (beri pada kategori yang tepat) Jurnal Ilmiah Nasional Terakreditasi

Jurnal Ilmiah Nasional/ Nasional terindeks di DOAJ, CABI, Copernicus Hasil Penilaian Peer Review :

Komponen Yang Dinilai

Nilai Reviewer

Nilai Rata- rata Reviewer

I

Reviewer II

a. Kelengkapan unsur isi artikel (10%) 2 2 2

b. Ruang lingkup dan kedalaman pembahasan (30%)

5 5,5 5,25

c. Kecukupan dan kemutahiran data/informasi dan metodologi (30%)

5 5 5

d. Kelengkapan unsur dan kualitas terbitan (30%)

5 5,5 5,25

Total = (100%) 17 18 17,5

Nilai Pengusul = 6,8 7,2 7

Semarang, Oktober 2021

Reviewer 2 Reviewer 1

Prof.Dr.Drs. Purbayu Budi Santosa, M.S.

NIP. 195809271986031019 Departemen IESP FEB Undip Jabatan Fungsional : Guru Besar

Prof. Drs. Waridin, M.S., Ph.D.

NIP. 196202121987031024

Departemen IESP FEB Undip

Jabatan Fungsional : Guru Besar

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LEMBAR

HASIL PENILAIAN SEJA W AT SEBIDANG AT AU PEER REVIEW KARYA ILMIAH : JURNAL ILMIAH

Judul karya ilmiah (artikel) An Empirical Analysis of the Impact of Investment, Labor and Education on Economic (Case Study of Nine Regencies/Cities in Bali Province, 2013 - 2019) 2 orang

Penulis ke 2

Dr. Drs. Nugroho Sumarjiyanto Benedictus Maria, M.Si.

Jurnlah Penulis Status Pengusul Nama Penulis Identitas Jurnal Ilmiah

a. Nama Jurnal b. Nomor ISSN

c. Volume, nomor, bulan, tahun d. Penerbit

International Journal of Scientific & Technology Research ISSN 2277-8616

VOLUME 10, ISSUE 04, APRIL 2021

International Journal of Scientific and Technology Research (TJSTR)

Hasil Penilaian Peer Review:

e. DOl artikel (jika ada) f. Alamat web jurnal

g. Terindeks di Scimago-JR I Thomson Reuter lSI

Knowledge atau di nasional I terindeks di DOAJ, CABI, Copernicus

rn" Jurnal Ilmiah Intemasional Imtemasieaal bereplitBf:li

D Jurnal Ilmiah Nasional Terakreditasi

D Jurnal I1miah Nasionall Nasional terindeks di DOAJ, CABI, Copernicus http://www .ij str. org!

Kategori Publikasi Jurnal Ilmiah : (beri "pada kategori yang tepat)

Nilai Maksimal Jurnal Ilmiah

Nilai Akhir Komponen

Internasional lnternasional Nasional Naslonal Nasional yang yang DinUai

bereputasi (Maks.20) Terakreditasi Tidak Terindeks Diperoleh Terakreditasl DOAJ dll.

a. Kelengkapan unsur isi artikel

(l0%)

2 1,5

b. Ruang lingkup dan ked ala man

6 5

pembahasan (30%)

c. Kecukupan dan kemutahiran

data/informasi dan metodologi

(30%)

6 5

d. Kelengkapan unsur dan kualitas

6 5,5

penerbit

(30%)

Total = (100%) 20

17

Kontribusi Pengusul (Penulis Pertama / Anggota Utama) = 40% 6,8

KOMENT AR

I

ULASAN PEER REVIEW

• Kelengkapan dan kesesuaian unsur Artikel terdiri atas unsur: Title, Abstract, Introduction, Literature Review, Research Method, Results, Hypothesis Testing, Conclusion and Suggestion, dan References. Unsur yang ditulis sudah

cukup leugkap,

• Ruang lingkup dan kedalaman Ruang lingkup sudah mengikuti substansi jurnal. Cakupan dan kedalaman pembahasan sudah pembahasan rnenjawab permasalahan riset, yaitu untuk

rnenganalisis

pengaruh investasi, tenaga kerja dan

pendidikan terhadap perturnbuhan ekonomi di Bali, Indonesia. Artikel sudah didukung referensi yang cukup baik dan relevan.

• Kecukupan dan kemutakhiran data Kecukupan dan kernutakhiran datal informasi sudah baik. Metodologi sesuai tujuan bahasan dan dan metodologi sudah diuraikan cukup jelas. Data rise! berasal dari panel data time series tahun

2013-2018

pada

9

kabupaten kota di Bali. Alat analisis yang digunakan adalah regresi berganda, sudah sesuai tujuan

riset,

Hasil riset sudah memberikan

penjelasan

yanjl baik sesuai tuiuan.

• Kelengkapan unsur dan kualitas

^Penerbit

jurnal kurang baik reputasinya. Jurnal ini terindeks di Google Scholar. Subject area:

penerbit science, development, engineering (masih cukup sesuai dengan bidang ilmu pengusuI).

Indikasi plagiasi Dengan Tumitin, similarity indeks artikel ini

22%

(internet sources

20%,

publications

13%,

students papers

4%),

exclude matches oft: Tidak diternukan adanya indikasi

plagiasi.

• Kesesuaian bidang ilrnu Substansi artikel dan subject area juroal sudah sesuai bidang ilmu pengusul (yaitu ilmu ekonomi).

Semarang, 25 Oktober 2021 Reviewer I

Prof. Drs. Waridin, M.S., Ph.D.

N[p.196202121987031024

Departemen !ESP FEB Undip

Jabatan Fuogsional : Guru Besar

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LEMBAR

HASIL PENILAIAN SEJAWAT SEBIDANG ATAU PEER REVIEW KARYA ILMIAH : JURNAL ILMIAH

Judul karya ilmiah (artikel) : An Empirical Analysis Of The Impact Of Investment, Labor And Education On Economic (Case Study Of Nine Regencies/Cities In Bali Province, 2013 - 2019)

Jumlah Penulis : 2 orang

Status Pengusul : Penulis ke 2

Nama Penulis : Dr.Drs. Nugroho Sumarjiyanto Benedictus Maria, M.Si.

Identitas Jurnal Ilmiah

: a. Nama Jurnal : INTERNATIONAL JOURNAL OF SCIENTIFIC &

TECHNOLOGY RESEARCH

: b. Nomor ISSN : ISSN 2277-8616

: c. Volume, nomor, bulan, tahun

: VOLUME 10, ISSUE 04, APRIL 2021

: d. Penerbit : International Journal of Scientific and Technology Research (IJSTR)

: e. DOI artikel (jika ada) :

: f. Alamat web jurnal : http://www.ijstr.org/

: g. Terindeks di scimagojr / Thomson Reufer ISI knowledge atau di nasional / terindeks di DOAJ, CABi, Copernicus

:

Kategori Publikasi Jurnal Ilmiah : : Jurnal Ilmiah Internasional /Internasional bereputasi (beri pada kategori yang tepat) Jurnal Ilmiah Nasional Terakreditasi

Jurnal Ilmiah Nasional/ Nasional terindeks di DOAJ, CABI, Copernicus Hasil Penilaian Peer Review :

Komponen Yang Dinilai

Nilai Maksimal Jurnal Ilmiah Nilai Akhir Yang Diperoleh Internasional

bereputasi (maks. 40)

Internasional (Maks.20)

Nasional Terakreditasi

(Maks. 25)

Nasional Tidak Terakreditasi (Maks. 10)

Nasional Terindeks DOAJ dll.

a . Kelengka pan unsur isi a rtikel (10%) 4 2 2,5 1 2

b. Rua ng lingkup dan kedalaman pembahasan (30%)

12 6 7,5 3 5,5

c. Kecukupan dan kemutahiran

da ta/informasi dan metodologi (30%)

12 6 7,5 3 5

d. Kelengka pan unsur dan kualitas penerbit (30%)

12 6 7,5 3 5,5

Total = (100%) 40 20 25 10 18

Kontribusi Pengusul (Penulis Pertama / Anggota Utama)

7,2 KOMENTAR / ULASAN PEER REVIEW

• Kelengka pan dan kesesuaian unsur Kelengka pan dan kesesuaian unsur jurnal sudah sesuai

• Rua ng lingkup dan kedalaman pembahasan

Rua ng lingkup dan kedalaman pembahasan sudah baik

• Kecukupan dan Kemutakhiran Data &

Metodologi

Kecukupan dan kemutakhiran data serta metodologi ya ng dipakai sudah baik

• Kelengka pan unsur dan kualitas penerbit

Kelengka pan unsur dari penerbit sudah terpenuhi dan kualitas penerbit rela tif baik

• Indikasi pla giasi Tida k a da

• Kesesua ian bidang ilmu Suda h sesuai dengan bidang ilmu yang didalami

Semarang, 24 Oktober 2021 Reviewer 2

Prof.Dr.Drs. Purbayu Budi Santosa, M.S.

NIP. 195809271986031019

Departemen IESP FEB Undip

Jabatan Fungsional : Guru Besar

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All listed papers are published after full consent of respective author or co-author(s).

For any discussion on research subject or research matter, the reader should directly contact to undersigned authors.

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Personality Antecedents Of Investors’ Biased Behavior In Pakistan

Muhammad Haroon Rasheed, Dr. Faid Gul, Dr. Aijaz Mustafa Hashmi

The purpose of the current study is to identify the personality traits that make an investor prone to make biased and suboptimal decisions; deriving from prospect and trait theory, we empirically validated the proposed theoretical model. The results are constructed based on a questionnaire survey conducted by collecting data from (n=198) investors in Islamabad, Pakistan. The results revealed that the personality traits of agreeableness, extraversion, and openness are significantly causing biased behavior in investors in Pakistan. Our empirical work, by identifying different personality traits associated with biased behavior, can help identify and aid in overcoming biased decision-making in stock markets. This aspect is rarely exposed, and this study is the pioneer to focus on the heuristic biases, hence providing vital insight to the investors, policymakers, and professionals to consider the personality before investing, to make optimal decision making, which will also ensure the efficiency of the stock market in the long run.

[View Full Paper]

[Download]

[References] ^1-7

Code-Switching In Teachers' Verbal Communication: Teaching Strategy Or Avoidance Stratagem?

ER-RADI Hicham, BOUALI Rachida

Code-switching is a sociolinguistic phenomenon that has become increasingly common in the language practices of some teachers of linguistic disciplines and non-linguistic disciplines in Morocco. The use of the learners' mother tongue in the different courses is justified for various reasons of a didactic, sociolinguistic, psycho-pedagogical or pragmatic nature. This article presents the results of a content analysis of the epilinguistic discourse of ten teachers from both disciplinary categories. The analysis reveals two tendencies in the reasons for the use of Arabic-French code-switching:

either as a teaching strategy to or facilitate communication and understanding, or as an avoidance strategy to escape the feeling of linguistic insecurity strongly felt by some teachers.

[Download]

Behavioural Advertising Avoidance In Online Retail Industry

Jayasuriya N.A, Udadeniya. U.P.R.P., Yalegama. M.M.H.H.

This study helps determine factors behind customer rejections on online behavioural advertisements. Five key factors such as privacy concern, goal impediment, perceived personalization, ad skepticism, and negative experience have been identified as influencing factors. The impact of these factors on behavioural advertising avoidance have been tested using the 430 responses. The data was collected using an online survey and analyzed using structural equation modelling. The results indicate that the personalization of advertisements could reduce ad avoidance behaviour. On the other hand, privacy concern, goal impediment, ad skepticism and negative experience increase the tendency to avoid behavioural advertisements.

[Download]

The Impact Of The Internet Uses In Asian Countries: Causes And Legislative Framework

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Efficiency And Energy Savings Provided By Adiabatic Pre-Cooling System

SAMIR AHMAD BILAL, AMEEN A. ALANSARI

Kuwait’s climate is severe in summer, between May and September very hot and dry weather conditions are experienced Ref.” [1]”. The ambient temperature reaches 50 °C in shade. Dry bulb temperature recorded to be (48 °C) and wet bulb temperature about (27 °C), this shows that (DB) exceeds (WB) by (21 °C) during summer” Ref [2]”.

Condenser coil temperature and pressure considerably, increased of any type of air- conditioned unit and this decrease the units cooling efficiency and raises the power consumption. The high power consumption by cooling systems ( exceeds more 50% of total power consumption for buildings was behind the idea of a field test of adiabatic pre cooling system on a condenser of S.K.M made air cooled chiller. The study was planned & assisted to read power consumption per hour (kW h) and climate conditions during a selected period with the adiabatic pre-cooling system on OFF- mode, and next day’s period with the adiabatic pre-cooling system on - ON mode. The total power consumption (KW) per hour through each period will be correlated to each other alongside with climate conditions during each period to calculate the efficiency of the pre cooling system to reduce energy. The adiabatic pre cooling system was fitted and the study was supervised by PAAET data analytics. It analyzed & justified by personnel from PAAET Engineering department. Data on air temperature, relative humidity and energy consumption of the chillers for test periods recorded and compared. The chart shows that, with comparable thermo-hygrometry conditions, the application of adiabatic pre cooling system allows for an impressive decrease in energy absorption of the chillers. Considering using adiabatic pre cooling system for existing air- conditioning, unit’s results in signi89ficant reduction of working hours of the compressors, working Cycle which in turn significantly reduces peak power load consumption.

[Download]

A Theoretical Review Of Deviant Workplace Behavior

Jeewandara S.K, Kumari D.A.T.

Deviant workplace behaviour can be simply defined as intentional behaviour that breaks the norms of a workplace and threatens the health of the workplace and its employees. The objective of this paper, examine more effectible factors on deviant workplace behaviour in theoretical support. Therefore, this paper is focused on identifying the factors affecting deviant workplace behaviour with the support of the theoretical background. As per the nature of the paper; few theories were critically examining (the positivists’ perspective of deviance, the constructionist perspective of deviance, an integrated view of deviance) to find out the independent variables (organizational justice, organizational ethical climate and demographic variables) which are affecting on deviant workplace behaviour. Based on the theoretical background, conceptualization & operationalization of dependent and independent variables were identified and the theoretical model was developed. Accordingly, the theoretical background composed of the theories and concepts in connection with deviant workplace behaviour.

[Download]

Physics Enrichment Book Based On Contextual Teaching And Learning To Develop Academic Performance Of Students

Asrizal, Desnita, Yenni Darvina

Teaching should have a context for creating the meaningful learning. In addition, students should have a variety of learning resources to enrich their abilities. However, learning resources for physics enrichment were still not available. The solution to this problem is to apply physics enrichment e-books by integrating contextual teaching learning (CTL) and environmental factor. The objective of the research was to investigate the effect of physics enrichment e-books by integrating CTL and environmental factor on academic performance of students. The research method was quasi-experimental for two groups of samples. The research design can be entered into the posttest only design. Data collection instruments consist of written test of knowledge aspect, observation sheet to assess attitudes, and performance assessment sheet to assess thinking skills of students. The results of data analysis stated that the application of physics enrichment e-book has given a significant effect on academic performance of grade X students including knowledge and thinking skills aspects.

[Download]

Sustainable Reliability And Bayesian Estimation Of Erlang Truncated

Exponential Distribution Based On The Multiple Steps Stress

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national railway operator of Malaysia. Previous studies in the area of competence development limited to other types of railway systems technology or non-Malaysian railway systems. This quantitative research study use suitable competency model to explore the competence of existing staff and following this an analysis to determine the suitability of the propose methods to develop and maintain competence is carry out.

The end result of this article present, discuss and summarize the outcome of pilot study analysis using appropriate statistical method to determine the usefulness and suitability of the research instrument for usage in final survey process.

[Download]

An Empirical Analysis Of The Impact Of Investment, Labor And Education On Economic (Case Study Of Nine Regencies/Cities In Bali Province, 2013 - 2019)

Fitri Bahari, Nugroho SBM

This study aims to analyze the effect of Investment, Labor, and Education on economic growth in the regencies/cities in Bali from 2013 to 2019. This study combines the three growth theories from Harrold-Domar, Solow, and Romer, using economic growth as the dependent variable and investment, labor, and education level as independent variables. The data used in this study is panel data (time-series data for six years from 2013 to 2018, and cross-section data of 9 data representing districts/cities in Bali). The method of analysis of this research uses the panel data regression with a fixed-effect model. Panel data regression analysis is used to determine the effect of independent variables on economic growth. The empirical results of the determinants of economic growth show that the Labor variable is significant to the actual level of five percent and has a negative effect on economic growth. Meanwhile, the variables of investment and education have an un-significant influence on Economic growth.

[Download]

Assessment Of Bank Erosion-Deposition And Bankline Shifting Of Padma River At Chapainawabgonj District In Bangladesh Using RS And GIS Technique

Md. Tasbirul Hussain, Dr. Md. Misbah Uddin, Gulam Md. Munna, Rifa Sanzidah, Tanusree Paul Choudhury

Bangladesh is a riverine country. Every year the country faces many natural hazards due to natural dynamic behavior of these rivers. These dynamic actions trigger massive migration of banks, generate thousands of homeless families and enormous land losses each year. This study has analyzed the severity of erosion, deposition and bank shifting of the Padma River at Chapainawabgonj district. Remote Sensing (RS) and Geographic information Systems (GIS) techniques were applied for calculating the erosion, deposition and bank shifting. Only secondary data has been applied for obtaining the research goal. Various computer software such as Erdas Imagine, ArcGIS, Google Earth etc. have been applied to examine raw data. Seven Landsat TM images between 1987 and 2017 were used in this study. Padma's riverbank shifting patterns and changing land cover resulting from 30 years of erosion/deposition processes have been observed. These rates of shifting of rivers are based on the difference between 1987 to 1992, 1992 to 1997, 1997 to 2001, 2001 to 2007, 2007 to 2011 and 2011 to 2017.

The average rates of erosion and deposition are 566.715 hectares/year and 557.451 hectares/year respectively. This study shows that the river bank line shifted significantly between 1987 and 2017 and this triggered massive bank erosion and deposition.

[Download]

[References] 376-381

Provable Data Possession Scheme Based On Algebraic Signature And Linked List For Outsourced Dynamic Data On Cloud Storage

Yasir Ali Panhwer, Imtiaz Ali Brohi, NajmaImtiaz Ali,Fiaz Ahmed Memon, Shahzad Nasim

With the advancements of emerging technology and applications, the production of data is increasing rapidly and it has the property of being updated dynamically. These dynamic data is stored on cloud storage provided by third party service providers (CSP). The third party cloud storages cannot be solely trusted, hence the integrity of data is a major concern for data owners as if their data is being intact, not deleted, modified or destroyed intentionally and unintentionally. Several researchers have proposed various provable data possession (PDP) techniques provide probabilistic approach for data integrity in which integrity of data is verified at block level. However, due to enormous amount of data and its dynamic nature, the integrity verification schemes cause high computational cost and communicational overhead for the generation of metadata and node rebalancing of the data structures. In this paper, we propose a Modular PDPthat is based on Algebraic signature and linked list. The algebraic signature is used to calculate the signature for data blocks which have the computational complexity ofO(N). Moreover, the overall integrity verification process is

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INTERNATIONAL JOURNAL OF SCIENTIFIC & TECHNOLOGY RESEARCH VO`LUME 10, ISSUE 04, APRIL 2021 ISSN 2277-8616

www.ijstr.org

Personality Antecedents Of Investors’ Biased Behavior In Pakistan

Muhammad Haroon Rasheed, Dr. Faid Gul, Dr. Aijaz Mustafa Hashmi

Abstract:- The purpose of the current study is to identify the personality traits that make an investor prone to make biased and suboptimal decisions;

deriving from prospect and trait theory, we empirically validated the proposed theoretical model. The results are constructed based on a questionnaire survey conducted by collecting data from (n=198) investors in Islamabad, Pakistan. The results revealed that the personality traits of agreeableness, extraversion, and openness are significantly causing biased behavior in investors in Pakistan. Our empirical work, by identifying different personality traits associated with biased behavior, can help identify and aid in overcoming biased decision-making in stock markets. This aspect is rarely exposed, and this study is the pioneer to focus on the heuristic biases, hence providing vital insight to the investors, policymakers, and professionals to consider the personality before investing, to make optimal decision making, which will also ensure the efficiency of the stock market in the long run.

Keywords:- Behavioral Finance, Personality Traits, Decision making, Biases, Heuristic, Stock market.

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1 Introduction

Recent economic growth resulting from globalization and free trade environment has improved the income level of the households, resulting in increased savings and an increasing trend of investments in stock markets across the world [1] and Pakistan is one among the emerging economies with improving overall outlook, along with efficient and effective stock market [2]. As reported by Bloomberg, In 2016 Pakistan stock market was the best accomplishment marketplace in Asia and stood fifth among highest yielding markets worldwide. Another significant accomplishment is to reclaim its developing market position by M.S.C.I. Pakistan [3] hence Pakistan is an excellent avenue to invest for investors. After the financial crisis, investors are considering for emerging markets like Pakistan that are less affected by economic stagnation of China and fluctuations in U.S policy rate.

Therefore it is of utmost importance to examine and explore the investment activities in the context of the stock market in Pakistan. Financial decisions–Investment or financing are made to maximize the value for the stakeholder/(s) but are these decisions are optimal in the real world is a central topic of discussion in the study of investors' decision making.

According to conventional finance theories, a financial decision is perfectly rational and wealth maximizing, but investors' decision-making is often irrational[4]. To get a better picture of investors' real-life behavior, behavioral finance merged theories from the field of psychology and finance to identify the reasons causing deviancies from the customary financial theory. Behavioral researchers argue that a person‘s psyche impacts financial decision-making [5]. According to Kahneman and Tversky's [6] prospect theory, these psychological factors are causing investors' irrational behavior.

These psychological factors are numerous and include biases, heuristics, and illusions, etc. [7] Heuristics biases are the rule of thumbs or mental shortcuts that help decide without doing

the complex probabilities assessment and leads an individual toward suboptimal decisions [8]. These heuristics are critical and are caused by their use of mental shortcuts [9]. Contrary to the other factors, these have emerged through experience and knowledge; the higher the experience and expertise will be, the higher the reliance on such biases [10]. Investors' mindset rejects rational analysis; instead, they rely on these heuristics leading to suboptimal decision making [11]. In this study, the aim is on explore the most utilized heuristics in decision making, namely availability and representativeness heuristic [8], [12].

This study will explore personality traits that cause an individual to rely on heuristics to make investment decisions, which previous studies failed to focus on. To identify the factors driving such biased behavior, a model is proposed by drawing on the disposition approach of personality because every person has a different situation and desires and differs in personality traits [13]. According to the disposition approach, personality traits of a person shape their behavioral outcomes, and financial behavior will also be impacted by personality traits [14]. There is a substantial link amongst personality of an investor and behavioral biases in previous studies [15]. Earlier studies mainly focused on the impact of personality traits directly on their investment decisions [13] and their intentions.

It was suggested by Simon, Houghton, & Aquino [16] that other factors and settings should be tested that can directly or indirectly affect investors' decision making. There are minimal studies in the existing literature that explored personality traits leading to biased behavior and none in the heuristics biases.

Hence, this work aims to theoretically and empirically explore the personality factors leading to investors' representative and availability behavior in Pakistan.

2 L ITERATURE REVIEW

Conventional finance theories like the efficient market hypothesis (E.M.H.), the capital asset pricing model (CAPM) state that each individual is rational. Their financial choices are made with the intention of wealth maximization, which includes investment decision-making [4], which is not the case in the real-world. Hence, standard finance is based on how an investor should behave rather than behave in the real-world [5]. When we observe the decision-making in everyday life, there exist substantial deviances from these theories. Hence to understand the real-life financial behavior, it is essential to consider some models that consider participants irrational [17].

Researchers tried to explain real-life financial behavior in

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

Muhammad Haroon Rasheed is currently pursuing a Ph.D. degree program in Management Sciences at the National University of Modern Languages Islamabad, Pakistan, E-mail:

[email protected]



Dr. Faid Gul is currently serving as Associate Professor at the National University of Modern Languages Islamabad, Pakistan, E- mail: [email protected]



Dr. Aijaz Mustafa Hashmi is currently serving as Assistant Professor

at the National University of Modern Languages Islamabad,

Pakistan, E-mail: [email protected]

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INTERNATIONAL JOURNAL OF SCIENTIFIC & TECHNOLOGY RESEARCH VO`LUME 10, ISSUE 04, APRIL 2021 ISSN 2277-8616

www.ijstr.org

Efficiency And Energy Savings Provided By Adiabatic Pre-Cooling System

SAMIR AHMAD BILAL, AMEEN A. ALANSARI

ABSTRACT

: Kuwait‘s climate is severe in summer, between May and September very hot and dry weather conditions are experienced Ref.‖ [1]‖. The ambient temperature reaches 50 °C in shade. Dry bulb temperature recorded to be (48 °C) and wet bulb temperature about (27 °C), this shows that (DB) exceeds (WB) by (21 °C) during summer‖ Ref [2]‖. Condenser coil temperature and pressure considerably, increased of any type of air- conditioned unit and this decrease the units cooling efficiency and raises the power consumption. The high power consumption by cooling systems ( exceeds more 50% of total power consumption for buildings was behind the idea of a field test of adiabatic pre cooling system on a condenser of S.K.M made air cooled chiller. The study was planned & assisted to read power consumption per hour (kW h) and climate conditions during a selected period with the adiabatic pre-cooling system on OFF- mode, and next day‘s period with the adiabatic pre-cooling system on - ON mode. The total power consumption (KW) per hour through each period will be correlated to each other alongside with climate conditions during each period to calculate the efficiency of the pre cooling system to reduce energy. The adiabatic pre cooling system was fitted and the study was supervised by PAAET data analytics. It analyzed & justified by personnel from PAAET Engineering department. Data on air temperature, relative humidity and energy consumption of the chillers for test periods recorded and compared. The chart shows that, with comparable thermo-hygrometry conditions, the application of adiabatic pre cooling system allows for an impressive decrease in energy absorption of the chillers. Considering using adiabatic pre cooling system for existing air- conditioning, unit‘s results in signi89ficant reduction of working hours of the compressors, working Cycle which in turn significantly reduces peak power load consumption.

INDEX TERMS

: Chillers, Adiabatic Cooling System, Energy Saving Eniscope, Data Logger, Power, Humidity, Efficiency.

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I NTRODUCTION

The aim of this study is to give the needed information for showing the right step of installing intelligent adiabatic condenser pre cooling system on most of cooling system application in commercial and residential buildings state of Kuwait and other Gulf and Mediterranean countries . We had tested adiabatic pre cooling system with air-cooled chillers at the college of technology at Shuwaik area of state of Kuwait. All tests planned & assisted to evaluate power consumption/hour and climate conditions during a four days period with the adiabatic pre-cooling system on OFF mode against a four days period with the adiabatic pre cooling system on- ON mode. The total kWh data registered for each periods when the adiabatic system was off and on .Data compared to each other along with climate conditions during each period in order to estimate the amount efficiency of the adiabatic pre-cooling system to reduce energy.

Concept of Adiabatic Cooling Process

In hot and dries climates during summer, where ambient temperature reaches (50 to 60 °C) as in the Gulf States region. Cooling unit's condenser coil pressure and temperature considerably, increased. The higher air entering temperature on condenser coil is, the higher the pressure, and energy consumption for the required total cooling capacity. A decrease of air temperature by (1°C) improves the efficiency of cooling system by (1.9 %).The use of adiabatic pre cooling system, the entering air temperature at the unit condenser coil drops by (25°C).

This gives the opportunities to reduce peak power load consumption up to (30%).The use of adiabatic pre cooling system reduces the air entering temperature helps in huge saving in energy and improve the unit total cooling capacity.

E QUIPMENT I NSTALLATION L AYOUT

The ‗adiabatic Cooling system‘ components installed and the investigation directed by MECHANIAL ENGENEERING DEPARTMENT at PA AET. The adiabatic systems consists of water pump with high pressure head, chillers load analyzer with controller , humidity and temperature sensors, condensers protection, protecting membranes, mineral deposit and calcium carbonate condenser protection . Water softener and treatment for protection from scaling as well legionel.

H OW I T W ORKS

The adiabatic pre cooling system is fixed in front of the condenser coil of the cooling unit as shown in figure (1&2).

Water initiated via an ambient sensor. Whence the setting exceed a programmed set level the controller release water supply spray and the unit receives fine mist of treated water that lowers the temperature of condensation within the air circulating around the condenser coil .

E QUIPMENT I NSTALLATION L AYOUT

Adiabatic cooling system ― Ref [ 5 ]‖ consists of water pump, sensors, protection membranes, monitoring system and water treatment system shown in figure (1).The membrane (pre-filter) protects the condenser coil from accumulating calcium and mineral (lime scale) deposits. The nozzles produce a mist wall sprayed in front of the condenser coil of the cooling unit .The water evaporates instantly as it mixes with the hot air. A monitoring system reads electrical power consumption, allowing the operator to note the gains in electrical consumption savings after the installation of the pre cooling system.

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

Samir Ahmad Bilal, Mechanical Eng. Trainer Public Authority for Applied Education & Training [email protected]



Ameen A. Alansari, Electrical Eng. Trainer Public Authority for

Applied Education & Training [email protected]