ON POSSIBILITY OF APPLICATION OF LOW-STATIC TEMPERATURE OF GAS FLOWS IN JET DEVICES FOR GAS SEPARATION

Rufat Mangushev / Azerbaijan State Oil and Industry University / Azerbaijan
RUFAT MANGUSHEV / AZERBAIJAN STATE OIL AND INDUSTRY UNIVERSITY / AZERBAIJAN
SUDABA NOVRUZOVA / AZERBAIJAN STATE OIL AND INDUSTRY UNIVERSITY / AZERBAIJAN
ELMIRA QADASHOVA / AZERBAIJAN STATE OIL AND INDUSTRY UNIVERSITY / AZERBAIJAN
INQLAB ALIYEV / AZERBAIJAN STATE OIL AND INDUSTRY UNIVERSITY / AZERBAIJAN

In this article we consider and discuss a problem of achieving low-static temperatures in adiabatic expansion of gas versus throttling of gas flows in case of a sudden pressure gradient, i.e. like during pressure reduction to 10 MPa in the low-temperature gas separators (LTS) and discuss calculation results obtained at transonic, sonic, and supersonic gas flow regimes with Mach number higher than 0.6. As situations of adiabatic expansion of gas due to a sudden pressure drop occur rather often in narrowing parts of the gas transport system and cause significant harm in formation of icicles and hydrates, which subsequently further narrow the flow through the narrowing nozzles and similar equipment. Furthermore, such motion causes alterations to the speed of sound registered around the narrowing nozzles, latches, control valves and such. The results obtained in the calculations and basic parameters are representative of typical work modes of jet apparatuses used in gas separators.

Read more..

Hybrid Broadband Absorption PV-cell based Water Electrolysis : Solar Hydrogen Technology

Shilpa Kumari / National Environmental engineering research institute / India
MS. SHILPA KUMARI / CSIR-NATIONAL ENVIRONMENTAL ENGINEERING RESEARCH INSTITUTE / INDIA
MRS. SEHBA ANJUM / CSIR-NATIONAL ENVIRONMENTAL ENGINEERING RESEARCH INSTITUTE / INDIA
MR. KUSHAGRA GABHANE / CSIR-NATIONAL ENVIRONMENTAL ENGINEERING RESEARCH INSTITUTE / INDIA
MS. NEHA SINGH / CSIR-NATIONAL ENVIRONMENTAL ENGINEERING RESEARCH INSTITUTE / INDIA
MRS. SADHANA RAYALU / CSIR-NATIONAL ENVIRONMENTAL ENGINEERING RESEARCH INSTITUTE / INDIA

With the need to reduce operational cost and even greater need to reduce carbon footprint, energy sector is looking for alternative sources of
power. With regulatory authorities contemplating to curb carbon emissions and rising liquid fuel cost putting pressure on operating margins, renewable energy could prove to be an attractive option for the industries. The move to renewable energy would not only reduce carbon emissions but would also help reduce operating expenses. The companies would benefit in multiple ways from renewable energy. Various renewable energy technology solutions are available for providing electricity for industrial purposes, but success of each of the available technology depends on multiple factors like capital expenditure, operating cost, reliability etc. In this study facilitated water electrolyser and facilitated photovoltaic panels are integrated to enhance the overall efficiency of the system at comparatively lower cost and reduced environmental footprint to establish its economic viability reliability in Indian scenario.

Read more..

Implementation of Aqua Stream Heat Pump(ASHP) for Urban Sustainability

Muhammad Junaid Basharat / University of the Punjab / Pakistan
MUHAMMAD JUNAID BASHARAT / UNIVERSITY OF THE PUNJAB / PAKISTAN
MUHAMMAD QASIM / UNIVERSITY OF THE PUNJAB / PAKISTAN
YOUSUF JAMAL / UNIVERSITY OF THE PUNJAB / PAKISTAN

Traditional Heat Pumps (AC) use 10% of electricity worldwide and it is increasing but they are inefficient as temperature increases and also cause Urban Heat Island Phenomenon. •Geothermal might be the answer but there is no flowing medium to dissipate heat inside Earth Crust,
which limits its efficiency.
•To counter all these problems Aqua Stream Heat Pump (ASHP) has a huge potential as it uses the stream of water of Canal or even ocean as a heat sink or source in Summer and Winters respectively because their temperature remains same all around the year.
•A Case study of Institute of Chemical Engineering and Technology (I.C.E.T), University of the Punjab has been done, In which the B.R.B canal in Lahore flows near the department. It is highly regulated and never flooded. It also flows more than 300 days in a year and just closes for maintenance and cleaning.

Read more..

COMPARING BUILDING PERFORMANCE OF SUPERMARKETS UNDER FUTURE CLIMATE CHANGE : UK CASE STUDY

Agha Hasan / University of West London / United Kingdom
AGHA HASAN / UNIVERSITY OF WEST LONDON / UNITED KINGDOM
ALI BAHDORI-JAHROMI / UNIVERSITY OF WEST LONDON / UNITED KINGDOM

Over the recent years, focus on climate change has garnered noteworthy attention. The primary focus of civil engineers today is to design build which are more environmentally friendly. The research paper has been prepared to evaluate the influence of forthcoming climate change on carbon emissions and energy usage in a conventional supermarket at London, Manchester and Southampton. The purpose of research is to
quantify yearly energy consumptions, cooling, carbon emissions, as well as heating demand of supermarkets, thus authenticating the temperature rise due to climatic variations. The findings have depicted trends of increasing variation across the country, moving towards the south. The study is the first in scrutinizing climate change’s impact on UK supermarkets by relying on real scenarios.

Read more..

Techno-Economic Analysis of Photovoltaic Hydrogen Production Considering the Uncertainty of Technological Progress(poster)

Qiuchi Wu / Nanjing Institute of Technology / China
ZHU ZHENTAO / NANJING INSTITUTE OF TECHNOLOGY / CHINA
QU YAPAN / ZHEJIANG UNIVERSITY OF FINANCE & ECONOMICS / CHINA
TAN WENYI / NANJING INSTITUTE OF TECHNOLOGY / CHINA
ZHANG YAN / NANJING INSTITUTE OF TECHNOLOGY / CHINA
WU QIUCHI / NANJING INSTITUTE OF TECHNOLOGY / CHINA
DING WEN / NANJING INSTITUTE OF TECHNOLOGY / CHINA

The application of photovoltaic (PV) power to split water and to produce hydrogen can not only reduce the carbon emissions in the process
of hydrogen production, but also can help decarbonize the transportation, chemical and metallurgical industries through P2X technology. It is a critical issue to establish a techno-economic model to predict the economics of the integrated PV-hydrogen technology at key time points in the future, based on the characteristics, the variability and the uncertainties of this technology.
In this paper, the comprehensive technical factors (including PV tracking system coefficient, PV conversion efficiency, electrolyzer efficiency, electrolyzer degradation coefficient) of integrated PV-hydrogen system were extracted, and then a PV hydrogen production techno-economic model (PVH2 model) was constructed. The levelized cost of hydrogen production (LCOH) method was used to estimate the cost of each major equipment item during the project lifetime. The combination of PVH2 model and the learning curve model was to determine the cost trend of integrated PV-hydrogen technology. A twodimensional Monte Carlo approach was proposed to predict the variation interval of LCOH for PV-hydrogen projects in 2030 and 2050, which describes the current technology variability with variable parameters and the uncertainty of the technology advancement with uncertain parameters. The results show that the most critical factors influencing LCOH are PV conversion efficiency and capital cost of electrolyzer. The LCOH of PV to hydrogen in China will drop to CNY 16-32/kg by 2030 and CNY 8-18/kg by 2050, respectively. The combination of a learning curve model and a Monte Carlo method is an effective tool to describe the current variability in hydrogen production technologies and uncertainty in technological progress.

Read more..