Environmental Science
Bio-oil production by pyrolysis of Azolla filiculoides and Ulva fasciata macroalgae

S. Pourkarimi; A. Hallajisani; A. Alizadehdakhel; A. Nouralishahi

Volume 7, Issue 3 , July 2021, , Pages 331-346

https://doi.org/10.22034/GJESM.2021.03.02

Abstract
  BACKGROUND AND OBJECTIVES: In this study, the characteristics of bio-oil samples produced through slow pyrolysis of two different macroalgae, i.e. Azolla ‎filiculoides and Ulva fasciata, at optimized conditions were determined and compared.METHODS: For this purpose, the effects of temperature (300-500 ...  Read More

Environmental Engineering
Prioritization of the effective factors in reducing energy consumption in a residential building using computer simulation

N. Amani; F. Tirgar Fakheri; K. Safarzadeh

Volume 7, Issue 2 , April 2021, , Pages 171-184

https://doi.org/10.22034/gjesm.2021.02.02

Abstract
  BACKGROUND AND OBJECTIVES: According to the latest energy balance sheets, the average energy consumption in the residential sector of Iran is about 41% of the total energy consumption in the country. Increasing the energy efficiency of buildings can decrease the annual energy consumption in the residential ...  Read More

Environmental Science
The effects of glucose, nitrate, and pH on cultivation of Chlorella sp. Microalgae

H. Nouri; J. Mohammadi Roushandeh; A. Hallajisani; A. Golzary; S. Daliry

Volume 7, Issue 1 , January 2021, , Pages 103-116

https://doi.org/10.22034/gjesm.2021.01.08

Abstract
  BACKGROUND AND OBJECTIVES: Bioenergy is a phenomenon that has attracted humans’ attention for about a century. The desirable biological properties of chlorella sp.microalgae have turned it to one of the most ideal options for the production of biodiesel. However, the economic issues must be taken ...  Read More

Environmental Engineering
Effective energy consumption parameters in residential buildings using Building Information Modeling

N. Amani; A.A. Reza Soroush

Volume 6, Issue 4 , October 2020, , Pages 467-480

https://doi.org/10.22034/gjesm.2020.04.04

Abstract
  Building information modeling can help in predicting the energy efficiency in future based on dynamic patterns obtained by visualization of data. The aim of this study was to investigate the effective parameters of energy consumption using BIM technology which can evaluate the buildings energy performance. ...  Read More

Economy-wide energy efficiency using a comprehensive decomposition method

D. Setyawan

Volume 6, Issue 3 , July 2020, , Pages 385-402

https://doi.org/10.22034/GJESM.2020.03.08

Abstract
  This study compares the energy intensity performance in Indonesia to other south-east Asia countries such as Vietnam, Thailand, Singapore, The Philippines and Malaysia for the period from 1971 to 2016. For this goal, this research employs a multiplicative Log Mean Divisia Index II method and Spatial-Temporal ...  Read More

Application of international energy efficiency standards for energy auditing in a University buildings

V. G. Shcherbak; L. Ganushchak-Yefimenko; O. Nifatova; P. Dudko; N. Savchuk; I. Solonenchuk

Volume 5, Issue 4 , October 2019, , Pages 501-514

https://doi.org/10.22034/GJESM.2019.04.09

Abstract
  This study seeks to provide insights on understanding the contemporary problems of energy efficiency in Ukrainian universities by developing a comprehensive energy efficiency management framework that encompasses its participating subjects, objects and key drivers along with suggesting its implementation ...  Read More

Environmental Engineering
Economic and environmental performance analysis of Polish energy companies

A. Włodarczyk

Volume 5, Special Issue , 2019, , Pages 1-11

https://doi.org/10.22034/gjesm.2019.05.SI.01

Abstract
  The tightening of the European Union climate and energy policy, directed to raising the resilience and effectiveness of the European Union Emissions Trading System, may influence on companies' economic performance. Polish energy companies, which mainly use coal in the energy production process, are particularly ...  Read More

Environmental Engineering
Strategic guidelines on the development of renewable energy sources

O.А. Mykoliuk; V.М. Bobrovnyk

Volume 5, Special Issue , 2019, , Pages 61-71

https://doi.org/10.22034/gjesm.2019.05.SI.07

Abstract
  The study highlights the importance to develop the national economy through assuring energy security. The study aims to analyze how to develop renewable energy sources, determine the main priorities of Ukraine’s national security policy and discover novel ways of assuring energy security due to ...  Read More

Environmental Engineering
Features in scientific and technical cooperation in the field of non-conventional renewable energy

V. Babenko; V. Sidorov; Y. Koniaieva; L. Kysliuk

Volume 5, Special Issue , 2019, , Pages 105-112

https://doi.org/10.22034/gjesm.2019.05.SI.12

Abstract
  This article discusses the prospects for the development of the implementation of scientific and technical cooperation. On the example of international cooperation between Ukraine and Chile, there are approaches to improving the procedure for developing cooperation priorities. The current state of these ...  Read More

Hydrogen sulfide removal from biogas using chemical absorption technique in packed column reactors

M.B. Kulkarni; P.M. Ghanegaonkar

Volume 5, Issue 2 , April 2019, , Pages 155-166

https://doi.org/10.22034/gjesm.2019.02.02

Abstract
  The toxicity and corrosion potential of hydrogen sulfide in raw biogas underlines the need for biogas purification. Several techniques available for removal of hydrogen sulfide from biogas are out of the reach for common end users due to lack of knowledge, higher running costs, and insufficient ...  Read More

Biogas generation from floral waste using different techniques

M.B. Kulkarni; P.M. Ghanegaonkar

Volume 5, Issue 1 , January 2019, , Pages 17-30

https://doi.org/10.22034/gjesm.2019.01.02

Abstract
  There is a great need to implement low-cost and user-friendly methods for further propagation of biogas technology in India. Environment unfriendly disposal of floral waste causes serious environmental pollution. Literature shows a limited research work regarding the anaerobic ...  Read More

Economic assessment of renewable power generation based on wind speed and solar radiation in urban regions

Y. Kassem; H. Gökçekuş; H. Çamur

Volume 4, Issue 4 , October 2018, , Pages 465-482

https://doi.org/10.22034/gjesm.2018.04.007

Abstract
  Economic evaluation of 12 MW grid-connected wind farms and PV power plants in two regions in Northern Cyprus for electricity generation was investigated. The wind speed, sunshine duration, and solar global radiation characteristics were analyzed using monthly data collected over 17 years (2000-2016) ...  Read More

Investigation of optimal condition for Chlorella vulgaris microalgae growth

S. Daliry; A. Hallajisani; J. Mohammadi Roshandeh; H. Nouri; A. Golzary

Volume 3, Issue 2 , April 2017, , Pages 217-230

https://doi.org/10.22034/gjesm.2017.03.02.010

Abstract
  Due to its abundance and also flexibility of cultivation conditions, Chlorella vulgaris microalgae is one of the most ideal options available in order to production of microalgae based biodiesel. Since vulgaris cultivation for fuel production needs economic considerations to be taken, and in first place ...  Read More

Sensitivity analysis of parameters affecting carbon footprint of fossil fuel power plants based on life cycle assessment scenarios

F. Dalir; M. Shafiepour Motlagh; K. Ashrafi

Volume 3, Issue 1 , January 2017, , Pages 75-88

https://doi.org/10.22034/gjesm.2017.03.01.008

Abstract
  In this study a pseudo comprehensive carbon footprint model for fossil fuel power plants is presented. Parameters which their effects are considered in this study include: plant type, fuel type, fuel transmission type, internal consumption of the plant, degradation, site ambient condition, transmission ...  Read More