Economic evaluation of small-scale LNG production system for shale gas recovery considering Life Cycle Cost with availability

2015 ◽  
pp. 2235-2240
Author(s):  
J Kim ◽  
Y Seo ◽  
S Lee ◽  
D Chang
Keyword(s):  
Life Cycle ◽  
Economic Evaluation ◽  
Shale Gas ◽  
Production System ◽  
Life Cycle Cost ◽  
Small Scale ◽  
Gas Recovery

Economic Evaluation of Multislice Computed Tomography Scanners Through a Life Cycle Cost Analysis

2011 ◽  
Vol 4 (5) ◽  
pp. 158-161 ◽  
Author(s):  
A. Morfonios A. Morfonios ◽  
◽  
D. Kaitelidou D. Kaitelidou ◽  
G. Filntisis G. Filntisis ◽  
G. Baltopoulos G. Baltopoulos ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Life Cycle ◽  
Economic Evaluation ◽  
Cost Analysis ◽  
Life Cycle Cost ◽  
Multislice Computed Tomography ◽  
Life Cycle Cost Analysis ◽  
Tomography Scanners

scholarly journals Effect of Turf Roof Slabs on Indoor Thermal Performance in Tropical Climates: A Life Cycle Cost Approach

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
R. U. Halwatura
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
Air Conditioning ◽  
Green Roof ◽  
Green Roofs ◽  
Scale Model ◽  
Small Scale ◽  
Indoor Temperature ◽  
Scale Models ◽  
Different Types

Urbanization related to population growth is one of the burning issues that the world is facing today. Parallel to this, there is visible evidence of a possible energy crisis in the near future. Thus, scientists have paid attention to sustainable development methods, and in the field of building construction also, several innovations have been proposed. For example, green roof concept is one of such which is considered a viable method mainly to reduce urban heat island effect, to regain lost land spaces in cities, and to increase aesthetics in cities. The present study was aimed at investigating the impact of green roofs on indoor temperature of buildings, the effect of different types of roofs on the air conditioning loads, and the life cycle cost of buildings with different types of roofing. The study was conducted in several phases: initial small-scale models to determine the heat flow characteristics of roof top soil layers with different thicknesses, a large-scale model applying the findings of the small-scale models to determine temperature fluctuations within a building with other common roofing systems, a computer simulation to investigate air conditioning loads in a typical building with cement fiber sheets and green roof slabs, a comparative analysis of the effect of traditional type roofs and green roofs on the air conditioning loads, and finally an analysis to predict the influence of traditional type roofs and green roofs on life cycle cost of the buildings. The main findings of the study were that green roofs are able to reduce the indoor temperature of buildings and are able to achieve better heat transfer through the roof, and, thus a lower cooling load is necessary for air conditioning and has the possibility of reducing life cycle cost of a building.

Life cycle assessment of a small-scale methanol production system: A Power-to-Fuel strategy for biogas plants

2020 ◽  
Vol 271 ◽  
pp. 122476 ◽  
Author(s):  
Lea Eggemann ◽  
Neus Escobar ◽  
Ralf Peters ◽  
Peter Burauel ◽  
Detlef Stolten
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Production System ◽  
Small Scale ◽  
Methanol Production ◽  
System A ◽  
Biogas Plants

scholarly journals A Framework for Economic Evaluation of Highway Development Projects Based on Network-Level Life Cycle Cost Analysis

2015 ◽  
Vol 27 (1) ◽  
pp. 59-68
Author(s):  
Hassan Ziari ◽  
Hamid Behbahani ◽  
Amir Ali Amini
Keyword(s):  
Life Cycle ◽  
Economic Evaluation ◽  
Cost Analysis ◽  
Life Cycle Cost ◽  
Geographical Area ◽  
Cost Effective ◽  
Development Project ◽  
Development Projects ◽  
Life Cycle Cost Analysis ◽  
Highway Network

For economic evaluation of a highway development project, multiple criteria must be considered on a timeframe longer than the project implementation interval and a geographical area larger than the project zone. In this study, a framework is proposed based on the Network-Level Life Cycle Cost Analysis (NL-LCCA) to assess the effect of highway development projects on mobility, safety, economy, environment and other monetizable criteria. In this approach, project impacts are estimated within physical boundaries of highway network over the network life cycle. This framework can be used as a decision-making support for evaluation and ranking of pre-defined development projects, proposing new cost-effective development projects, assessment of cost efficiency of existing highway network and budget allocation optimization.

scholarly journals Environmental life cycle assessment of yellow mealworm (Tenebrio molitor) production for human consumption in Austria – a comparison of mealworm and broiler as protein source

2021 ◽  
Author(s):  
Moritz Dreyer ◽  
Stefan Hörtenhuber ◽  
Werner Zollitsch ◽  
Henry Jäger ◽  
Lisa-Marie Schaden ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Production System ◽  
Tenebrio Molitor ◽  
Small Scale ◽  
Scale Production ◽  
Environmental Life Cycle Assessment ◽  
On Farm ◽  
The Impact ◽  
Freshwater Eutrophication

Abstract Purpose Global food production needs to increase to provide enough food for over 9 billion people living by 2050. Traditional animal production is among the leading causes for climate change and occupation of land. Edible insects might be a sustainable protein supply to humans, but environmental life cycle assessment (LCA) studies on them are scarce. This study performs an LCA of a small-scale production system of yellow mealworms (Tenebrio molitor) in Central Europe that are supplied with organic feedstuff. Methods A combined ReCiPe midpoint (H) and CED method is used to estimate the potential environmental impacts from cradle-to-gate. Impact categories include global warming potential (GWP), non-renewable energy use (NREU), agricultural land occupation (ALOP), terrestrial acidification potential (TAP) and freshwater eutrophication potential (FEP). The robustness of the results is tested via sensitivity analyses and Monte Carlo simulations. Results and discussion Impacts related to the production of 1 kg of edible mealworm protein amount to 20.4 kg CO2-eq (GWP), 213.66 MJ-eq (NREU), 22.38 m2 (ALOP), 159.52 g SO2-eq (TAP) and 12.41 g P-eq (FEP). Upstream feed production and on-farm energy demand related to the heating of the facilities are identified as environmental hot-spots: Depending on the impact category, feed supply contributes up to 90% and on-farm heating accounts for up to 65% of overall impacts. The organic mealworm production system is contrasted with a selected Austrian organic broiler production system, to which it compares favourably (18–72% lower impacts per category), with the exception of freshwater eutrophication (6% higher impacts). Conclusions This case study shows that the Austrian mealworm production system compares favourably to traditional livestock systems. Compared to LCAs from large-scale T. molitor rearing facilities in France and in the Netherlands, however, the Austrian production system cannot compete for the reasons of production scale, feed conversion efficiency and type of production system. Nevertheless, the investigated mealworms represent a sustainable protein alternative that should be added to the Western diet.

Food waste generation in a university and the handling efficiency of a university catering facility-scale automatic collection system

Facilities ◽  
2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Kwok Wai Mui ◽  
Ling Tim Wong ◽  
Tsz-Wun Tsang ◽  
Yin Hei Chiu ◽  
Kai-Wing Lai
Keyword(s):  
Life Cycle ◽  
Food Waste ◽  
Life Cycle Cost ◽  
Small Scale ◽  
Waste Collection ◽  
Collection System ◽  
Content Type ◽  
Ideal System ◽  
Operational Expenditure ◽  
Waste Handling

Purpose This study aims to evaluate the generation of food waste in a university and the handling efficiency of an automatic waste collection system. Design/methodology/approach The quantity of food waste generated and collected from a university canteen was surveyed. The food waste handling efficiencies using manual collection strategy and automated food waste collection system were determined by the density of food waste. Life-cycle costing analysis was done to evaluate the economic impacts of various food waste collection methods. Findings As compared with the manual collection approach, the automatic system can improve the food waste handling efficiency by 30% (from 0.01 to 0.007 bin kg−1) and reduce the water use by 20% (from 0.512 to 0.406 L kg−1); however, it also consumes 4.4 times more energy (from 0.005 to 0.027 kWh kg−1). Under ideal system operation, the 10-year cost of food waste collection was significantly reduced from $3.45 kg−1 in the manual collection to $1.79 kg−1, and the payback period of the system collection was 1.9 years without discount. Practical implications The outcomes of this study show that an automatic food waste collection system is feasible, and it is recommended for small- and medium-sized catering facilities (e.g. canteens and food courts) to improve food waste handling efficiency. This study also provides useful reference data of automatic food waste collection systems for planning food waste management programs for catering facilities. Originality/value To the best of the authors’ knowledge, this is the first study to evaluate the waste handling efficiency, operational expenditure and life-cycle cost of a small-scale automatic food waste collection system.

INTEGRATING BUILDING INFORMATION MODELING AND VISUAL PROGRAMMING FOR BUILDING LIFE-CYCLE COST ANALYSIS

2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Veerasak Likhitruangsilp ◽  
Hang T. T. Le ◽  
Nobuyoshi Yabuki ◽  
Photios G. Ioannou
Keyword(s):  
Life Cycle ◽  
Economic Evaluation ◽  
Life Cycle Cost ◽  
Building Information Modeling ◽  
Visual Programming ◽  
Real Estate Market ◽  
Information Modeling ◽  
Cost Calculation ◽  
Evaluation Tool ◽  
Building Information

In recent years, the fierce competition in worldwide real-estate market has pushed the stakeholders towards the sustainability for buildings. Life-cycle cost (LCC) is an effective economic evaluation tool that provides a detailed account for all costs related to constructing, operating, maintaining, and disposing a construction project over a defined period of time. Awareness of better value of money throughout the LCC is beyond the initial price. Governments and Contracting authorities add the LCC as a key provision in the context of National Codes and Council Directives to promote the growth of sustainability concept. Current LCC analytical methods are costly, laborious, and time-consuming due to the difficulties of obtaining information and implementing many single LCC analyses for all building elements, which may be attributed to the inaccuracy of results. Building information modeling (BIM) is a modern technology that can potentially overcome the asperities that obstruct practical LCC implementation. This paper develops a new automated system for performing LCC analyses for new building projects by integrating BIM authoring programming with visual programming. The proposed system consists of two main modules. The BIM module is designed to retrieve 3D geometric and physical parameters of building element types. The life-cycle cost calculation module can perform automatic estimating and report results. This system provides an economic evaluation tool for the owner to manage the total life-cycle budget of their projects.

scholarly journals Effect of Nutrient Removal and Resource Recovery on Life Cycle Cost and Environmental Impacts of a Small Scale Water Resource Recovery Facility

2018 ◽  
Vol 10 (10) ◽  
pp. 3546 ◽  
Author(s):  
Ben Morelli ◽  
Sarah Cashman ◽  
Xin Ma ◽  
Jay Garland ◽  
Jason Turgeon ◽  
...  
Keyword(s):  
Life Cycle ◽  
Environmental Impacts ◽  
Water Resource ◽  
Nutrient Removal ◽  
Life Cycle Cost ◽  
Resource Recovery ◽  
Biological Nutrient Removal ◽  
Small Scale ◽  
Small Community ◽  
Legacy System

To limit effluent impacts on eutrophication in receiving waterbodies, a small community water resource recovery facility (WRRF) upgraded its conventional activated sludge treatment process for biological nutrient removal, and considered enhanced primary settling and anaerobic digestion (AD) with co-digestion of high strength organic waste (HSOW). The community initiated the resource recovery hub concept with the intention of converting an energy-consuming wastewater treatment plant into a facility that generates energy and nutrients and reuses water. We applied life cycle assessment and life cycle cost assessment to evaluate the net impact of the potential conversion. The upgraded WRRF reduced eutrophication impacts by 40% compared to the legacy system. Other environmental impacts such as global climate change potential (GCCP) and cumulative energy demand (CED) were strongly affected by AD and composting assumptions. The scenario analysis showed that HSOW co-digestion with energy recovery can lead to reductions in GCCP and CED of 7% and 108%, respectively, for the upgraded WRRF (high feedstock-base AD performance scenarios) relative to the legacy system. The cost analysis showed that using the full digester capacity and achieving high digester performance can reduce the life cycle cost of WRRF upgrades by 15% over a 30-year period.

Sign in / Sign up

Export Citation Format

Share Document